Merge pull request '双端适配，web端的修改父容器和接口' (#7) from adapt into dev

Reviewed-on: #7

.gitea/workflows/build.yml

@@ -272,6 +272,42 @@ jobs:
           name: carrot-bbs-android-release-apk
           path: android/app/build/outputs/apk/release/app-release.apk
 
+      - name: Resolve runtime version
+        id: runtime
+        run: |
+          RUNTIME_VERSION="$(node -p "require('./app.json').expo.version")"
+          echo "runtime_version=${RUNTIME_VERSION}" >> "$GITHUB_OUTPUT"
+          echo "Resolved runtimeVersion: ${RUNTIME_VERSION}"
+
+      - name: Upload APK to Updates Server
+        env:
+          OTA_AUTH_TOKEN: ${{ secrets.OTA_AUTH_TOKEN }}
+          UPDATES_SERVER_URL: https://updates.littlelan.cn
+        run: |
+          test -n "${OTA_AUTH_TOKEN}" || (echo "Missing secret OTA_AUTH_TOKEN" && exit 1)
+          
+          APK_PATH="android/app/build/outputs/apk/release/app-release.apk"
+          RUNTIME_VERSION="${{ steps.runtime.outputs.runtime_version }}"
+          
+          echo "Uploading APK for runtime version: ${RUNTIME_VERSION}"
+          
+          HTTP_CODE=$(curl -s -o response.json -w "%{http_code}" \
+            -X POST \
+            "${UPDATES_SERVER_URL}/admin/apk/upload?runtimeVersion=${RUNTIME_VERSION}" \
+            -H "Authorization: Bearer ${OTA_AUTH_TOKEN}" \
+            -H "Content-Type: application/vnd.android.package-archive" \
+            --data-binary @"${APK_PATH}")
+          
+          echo "HTTP Response Code: ${HTTP_CODE}"
+          cat response.json
+          
+          if [ "${HTTP_CODE}" -ne 200 ]; then
+            echo "Failed to upload APK"
+            exit 1
+          fi
+          
+          echo "APK uploaded successfully!"
+
   build-and-push-web:
     runs-on: ubuntu-latest
     permissions:

app.config.js

@@ -23,6 +23,29 @@ const devUpdatesUrl =
 
 const expo = appJson.expo;
 
+// 检测是否为 Web 平台
+const isWeb = process.env.EXPO_TARGET === 'web' || process.env.PLATFORM === 'web';
+
+// 原生平台特有的插件（在 Web 端会报错）
+const nativeOnlyPlugins = [
+  'expo-camera',
+  'expo-notifications',
+  'expo-background-fetch',
+  'expo-media-library',
+  'expo-image-picker',
+  'expo-video',
+  'expo-sqlite',
+  './plugins/withMainActivityConfigChange',
+];
+
+// 过滤插件：Web 端排除原生插件
+const filteredPlugins = isWeb
+  ? expo.plugins.filter((plugin) => {
+      const pluginName = Array.isArray(plugin) ? plugin[0] : plugin;
+      return !nativeOnlyPlugins.includes(pluginName);
+    })
+  : expo.plugins;
+
 module.exports = {
   ...expo,
   name: isDevVariant ? `${expo.name} Dev` : expo.name,
@@ -40,10 +63,27 @@ module.exports = {
     ...expo.android,
     package: 'skin.carrot.bbs',
   },
+  // Web 端使用过滤后的插件
+  plugins: filteredPlugins,
   extra: {
     ...(expo.extra || {}),
     appVariant: isDevVariant ? 'dev' : 'release',
     apiBaseUrl: isDevVariant ? devApiBaseUrl : releaseApiBaseUrl,
     updatesUrl: isDevVariant ? devUpdatesUrl : releaseUpdatesUrl,
   },
+  // Web 端配置
+  ...(isWeb && {
+    web: {
+      ...expo.web,
+      build: {
+        ...expo.web?.build,
+        // 配置 Web 端别名，避免加载原生模块
+        babel: {
+          dangerouslyAddModulePathsToTranspile: [
+            'react-native-webrtc',
+          ],
+        },
+      },
+    },
+  }),
 };

app.json

@@ -2,7 +2,7 @@
   "expo": {
     "name": "萝卜社区",
     "slug": "qojo",
-    "version": "1.0.11",
+    "version": "1.0.12",
     "orientation": "default",
     "icon": "./assets/icon.png",
     "userInterfaceStyle": "automatic",
@@ -15,11 +15,13 @@
     "ios": {
       "supportsTablet": true,
       "infoPlist": {
+        "NSMicrophoneUsageDescription": "允许萝卜社区访问您的麦克风以进行语音通话",
         "UIBackgroundModes": [
           "fetch",
           "remote-notification",
           "fetch",
-          "remote-notification"
+          "remote-notification",
+          "audio"
         ],
         "ITSAppUsesNonExemptEncryption": false
       },
@@ -37,6 +39,7 @@
       "versionCode": 6,
       "permissions": [
         "VIBRATE",
+        "RECORD_AUDIO",
         "RECEIVE_BOOT_COMPLETED",
         "WAKE_LOCK",
         "READ_EXTERNAL_STORAGE",
@@ -59,6 +62,7 @@
       "favicon": "./assets/favicon.png"
     },
     "plugins": [
+      "./plugins/withMainActivityConfigChange",
       [
         "expo-router",
         {

app/(app)/(tabs)/_layout.tsx

@@ -1,4 +1,4 @@
-import { useMemo } from 'react';
+import { useMemo, useCallback } from 'react';
 import { Platform, useWindowDimensions } from 'react-native';
 import { Tabs, usePathname } from 'expo-router';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
@@ -6,7 +6,7 @@ import { useSafeAreaInsets } from 'react-native-safe-area-context';
 
 import { useAppColors, shadows } from '../../../src/theme';
 import { BREAKPOINTS } from '../../../src/hooks/useResponsive';
-import { useHomeTabBarVisibilityStore, useTotalUnreadCount } from '../../../src/stores';
+import { useHomeTabBarVisibilityStore, useTotalUnreadCount, useHomeTabPressStore } from '../../../src/stores';
 
 const TAB_BAR_HEIGHT = 56;
 const TAB_BAR_FLOATING_MARGIN = 12;
@@ -19,10 +19,17 @@ export default function TabsLayout() {
   const pathname = usePathname();
   const unreadCount = useTotalUnreadCount();
   const scrollHideTabBar = useHomeTabBarVisibilityStore((s) => s.bottomTabBarHiddenByScroll);
+  const triggerHomeTabPress = useHomeTabPressStore((s) => s.triggerPress);
   const hideTabBar = Platform.OS === 'web' && width >= BREAKPOINTS.desktop;
 
   const isHomeStackRoute = pathname === '/home' || pathname.startsWith('/home/');
 
+  const handleHomeTabPress = useCallback(() => {
+    if (pathname === '/home') {
+      triggerHomeTabPress();
+    }
+  }, [pathname, triggerHomeTabPress]);
+
   const tabBarStyle = useMemo(() => {
     if (hideTabBar) {
       return { display: 'none' as const, height: 0, overflow: 'hidden' as const };
@@ -81,6 +88,9 @@ export default function TabsLayout() {
             />
           ),
         }}
+        listeners={{
+          tabPress: handleHomeTabPress,
+        }}
       />
       <Tabs.Screen
         name="apps"

app/(app)/(tabs)/apps/materials/_layout.tsx

@@ -0,0 +1,11 @@
+import { Stack } from 'expo-router';
+
+export default function MaterialsStackLayout() {
+  return (
+    <Stack screenOptions={{ headerShown: false }}>
+      <Stack.Screen name="index" />
+      <Stack.Screen name="subject" />
+      <Stack.Screen name="detail" />
+    </Stack>
+  );
+}

app/(app)/(tabs)/apps/materials/detail.tsx

@@ -0,0 +1,5 @@
+import { MaterialDetailScreen } from '../../../../../src/screens/material';
+
+export default function MaterialDetailRoute() {
+  return <MaterialDetailScreen />;
+}

app/(app)/(tabs)/apps/materials/index.tsx

@@ -0,0 +1,5 @@
+import { MaterialsScreen } from '../../../../../src/screens/material';
+
+export default function MaterialsRoute() {
+  return <MaterialsScreen />;
+}

app/(app)/(tabs)/apps/materials/subject.tsx

@@ -0,0 +1,5 @@
+import { SubjectMaterialsScreen } from '../../../../../src/screens/material';
+
+export default function SubjectMaterialsRoute() {
+  return <SubjectMaterialsScreen />;
+}

app/_layout.tsx

@@ -21,6 +21,8 @@ import AppPromptBar from '../src/components/common/AppPromptBar';
 import AppDialogHost from '../src/components/common/AppDialogHost';
 import { installAlertOverride } from '../src/services/alertOverride';
 import { useAuthStore } from '../src/stores';
+import { checkForAPKUpdate } from '../src/services/apkUpdateService';
+import { CallScreen, IncomingCallModal, FloatingCallWindow } from '../src/components/call';
 
 registerNotificationPresentationHandler();
 
@@ -137,6 +139,26 @@ function NotificationBootstrap() {
   return null;
 }
 
+function APKUpdateBootstrap() {
+  const hasChecked = useRef(false);
+
+  useEffect(() => {
+    if (hasChecked.current) return;
+    hasChecked.current = true;
+
+    // 延迟执行，避免与启动流程冲突
+    const timer = setTimeout(() => {
+      checkForAPKUpdate().catch((error) => {
+        console.error('APK update check failed:', error);
+      });
+    }, 3000);
+
+    return () => clearTimeout(timer);
+  }, []);
+
+  return null;
+}
+
 function ThemedStack() {
   const router = useRouter();
   const colors = useAppColors();
@@ -148,6 +170,7 @@ function ThemedStack() {
       <SystemChrome />
       <SessionGate>
         <NotificationBootstrap />
+        <APKUpdateBootstrap />
         <Stack screenOptions={{ headerShown: false }}>
           <Stack.Screen name="index" options={{ headerShown: false }} />
           <Stack.Screen name="(auth)" options={{ headerShown: false }} />
@@ -197,6 +220,9 @@ export default function RootLayout() {
             <ThemedStack />
             <AppPromptBar />
             <AppDialogHost />
+            <IncomingCallModal />
+            <CallScreen />
+            <FloatingCallWindow />
           </QueryClientProvider>
         </ThemedProviders>
       </SafeAreaProvider>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "carrot_bbs",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "carrot_bbs",
-      "version": "1.0.1",
+      "version": "1.0.2",
       "dependencies": {
         "@expo/vector-icons": "^15.1.1",
         "@react-native-async-storage/async-storage": "^2.2.0",
@@ -29,6 +29,7 @@
         "expo-haptics": "~55.0.8",
         "expo-image": "^55.0.5",
         "expo-image-picker": "^55.0.10",
+        "expo-intent-launcher": "~55.0.9",
         "expo-linear-gradient": "^55.0.8",
         "expo-media-library": "~55.0.9",
         "expo-notifications": "^55.0.10",
@@ -53,6 +54,7 @@
         "react-native-screens": "~4.23.0",
         "react-native-sse": "^1.2.1",
         "react-native-web": "^0.21.0",
+        "react-native-webrtc": "^124.0.7",
         "react-native-webview": "13.16.0",
         "react-native-worklets": "0.7.2",
         "zod": "^4.3.6",
@@ -5747,6 +5749,15 @@
         "expo": "*"
       }
     },
+    "node_modules/expo-intent-launcher": {
+      "version": "55.0.9",
+      "resolved": "https://registry.npmmirror.com/expo-intent-launcher/-/expo-intent-launcher-55.0.9.tgz",
+      "integrity": "sha512-s8k8dF8PfgzN0c+xzNTd9ceHh+/6mt2ncnMuqFaIIry2BeDGITbsgVijHr39eB5vS+KopCcOYYBYr+O1epx4TA==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*"
+      }
+    },
     "node_modules/expo-json-utils": {
       "version": "55.0.0",
       "resolved": "https://registry.npmmirror.com/expo-json-utils/-/expo-json-utils-55.0.0.tgz",
@@ -9789,6 +9800,55 @@
       "integrity": "sha512-rkpe71W0N0c0Xz6QD0eJETuWAJGnJ9afsl1srmwPrI+yBCkge5EycXXbYRyvL29zZVUWQCY7InPRCv3GDXuZNw==",
       "license": "MIT"
     },
+    "node_modules/react-native-webrtc": {
+      "version": "124.0.7",
+      "resolved": "https://registry.npmmirror.com/react-native-webrtc/-/react-native-webrtc-124.0.7.tgz",
+      "integrity": "sha512-gnXPdbUS8IkKHq9WNaWptW/yy5s6nMyI6cNn90LXdobPVCgYSk6NA2uUGdT4c4J14BRgaFA95F+cR28tUPkMVA==",
+      "license": "MIT",
+      "dependencies": {
+        "base64-js": "1.5.1",
+        "debug": "4.3.4",
+        "event-target-shim": "6.0.2"
+      },
+      "peerDependencies": {
+        "react-native": ">=0.60.0"
+      }
+    },
+    "node_modules/react-native-webrtc/node_modules/debug": {
+      "version": "4.3.4",
+      "resolved": "https://registry.npmmirror.com/debug/-/debug-4.3.4.tgz",
+      "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.1.2"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-native-webrtc/node_modules/event-target-shim": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmmirror.com/event-target-shim/-/event-target-shim-6.0.2.tgz",
+      "integrity": "sha512-8q3LsZjRezbFZ2PN+uP+Q7pnHUMmAOziU2vA2OwoFaKIXxlxl38IylhSSgUorWu/rf4er67w0ikBqjBFk/pomA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.13.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/mysticatea"
+      }
+    },
+    "node_modules/react-native-webrtc/node_modules/ms": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmmirror.com/ms/-/ms-2.1.2.tgz",
+      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+      "license": "MIT"
+    },
     "node_modules/react-native-webview": {
       "version": "13.16.0",
       "resolved": "https://registry.npmmirror.com/react-native-webview/-/react-native-webview-13.16.0.tgz",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "carrot_bbs",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "main": "expo-router/entry",
   "scripts": {
     "start": "expo start",
@@ -35,6 +35,7 @@
     "expo-haptics": "~55.0.8",
     "expo-image": "^55.0.5",
     "expo-image-picker": "^55.0.10",
+    "expo-intent-launcher": "~55.0.9",
     "expo-linear-gradient": "^55.0.8",
     "expo-media-library": "~55.0.9",
     "expo-notifications": "^55.0.10",
@@ -59,6 +60,7 @@
     "react-native-screens": "~4.23.0",
     "react-native-sse": "^1.2.1",
     "react-native-web": "^0.21.0",
+    "react-native-webrtc": "^124.0.7",
     "react-native-webview": "13.16.0",
     "react-native-worklets": "0.7.2",
     "zod": "^4.3.6",

plugins/withMainActivityConfigChange.js

@@ -0,0 +1,73 @@
+const { withMainActivity } = require('@expo/config-plugins');
+
+/**
+ * 在 MainActivity 中添加 onConfigurationChanged 方法
+ * 用于监听系统深色模式变化并通知 React Native
+ */
+const withMainActivityConfigChange = (config) => {
+  return withMainActivity(config, async (config) => {
+    const { contents } = config.modResults;
+
+    // 检查是否已经添加了 onConfigurationChanged
+    if (contents.includes('onConfigurationChanged')) {
+      return config;
+    }
+
+    // 需要添加的 imports
+    const importsToAdd = `import android.content.Intent
+import android.content.res.Configuration`;
+
+    // 需要添加的方法
+    const methodToAdd = `
+  /**
+   * 监听系统配置变化（包括深色模式切换），并广播给 React Native
+   * 这对于 Appearance API 正确检测系统主题至关重要
+   */
+  override fun onConfigurationChanged(newConfig: Configuration) {
+    super.onConfigurationChanged(newConfig)
+    val intent = Intent("onConfigurationChanged")
+    intent.putExtra("newConfig", newConfig)
+    sendBroadcast(intent)
+  }
+`;
+
+    let newContents = contents;
+
+    // 添加 imports（在已有 imports 后面）
+    if (!newContents.includes('import android.content.Intent')) {
+      // 找到最后一个 import 语句
+      const importRegex = /import [^\n]+\n/g;
+      const imports = newContents.match(importRegex);
+      if (imports && imports.length > 0) {
+        const lastImport = imports[imports.length - 1];
+        const lastImportIndex = newContents.lastIndexOf(lastImport);
+        const insertPosition = lastImportIndex + lastImport.length;
+        newContents =
+          newContents.slice(0, insertPosition) +
+          importsToAdd +
+          '\n' +
+          newContents.slice(insertPosition);
+      }
+    }
+
+    // 在类体的开头添加 onConfigurationChanged 方法
+    // 找到类定义后的第一个方法或属性
+    const classBodyRegex = /class MainActivity\s*:\s*ReactActivity\s*\(\)\s*\{([\s\S]*)/;
+    const match = newContents.match(classBodyRegex);
+    if (match) {
+      // 找到 onCreate 方法之前插入
+      const onCreateIndex = newContents.indexOf('override fun onCreate');
+      if (onCreateIndex !== -1) {
+        newContents =
+          newContents.slice(0, onCreateIndex) +
+          methodToAdd +
+          newContents.slice(onCreateIndex);
+      }
+    }
+
+    config.modResults.contents = newContents;
+    return config;
+  });
+};
+
+module.exports = withMainActivityConfigChange;

src/components/business/CommentItem.tsx

@@ -18,7 +18,7 @@ interface CommentItemProps {
   comment: Comment;
   onUserPress: () => void;
   onReply: () => void;
-  onLike: () => void;
+  onLike: (comment: Comment) => void; // 点赞回调，传入评论对象
   floorNumber?: number; // 楼层号
   isAuthor?: boolean; // 是否是楼主
   replyToUser?: string; // 回复给哪位用户
@@ -504,6 +504,25 @@ const CommentItem: React.FC<CommentItemProps> = ({
                       回复
                     </Text>
                   </TouchableOpacity>
+                  {/* 点赞按钮 */}
+                  <TouchableOpacity
+                    style={styles.subActionButton}
+                    onPress={() => onLike?.(reply)}
+                    activeOpacity={0.7}
+                  >
+                    <MaterialCommunityIcons
+                      name={reply.is_liked ? 'heart' : 'heart-outline'}
+                      size={12}
+                      color={reply.is_liked ? colors.error.main : colors.text.hint}
+                    />
+                    <Text
+                      variant="caption"
+                      color={reply.is_liked ? colors.error.main : colors.text.hint}
+                      style={styles.subActionText}
+                    >
+                      {reply.likes_count > 0 ? formatNumber(reply.likes_count) : '赞'}
+                    </Text>
+                  </TouchableOpacity>
                   {/* 删除按钮 - 子评论作者可见 */}
                   {isSubReplyAuthor && (
                     <TouchableOpacity
@@ -592,7 +611,7 @@ const CommentItem: React.FC<CommentItemProps> = ({
         {/* 操作按钮 - 更紧凑 */}
         <View style={styles.actions}>
           {/* 点赞 */}
-          <TouchableOpacity style={styles.actionButton} onPress={onLike}>
+          <TouchableOpacity style={styles.actionButton} onPress={() => onLike(comment)}>
             <MaterialCommunityIcons
               name={comment.is_liked ? 'heart' : 'heart-outline'}
               size={14}

src/components/business/QRCodeScanner.tsx

@@ -7,8 +7,8 @@ import {
   Alert,
   Modal,
   Dimensions,
+  Platform,
 } from 'react-native';
-import { CameraView, useCameraPermissions } from 'expo-camera';
 import { useRouter } from 'expo-router';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
 import * as hrefs from '../../navigation/hrefs';
@@ -133,22 +133,74 @@ function createQrScannerStyles(colors: AppColors) {
       fontSize: fontSizes.md,
       fontWeight: '600',
     },
+    webNotSupportedContainer: {
+      flex: 1,
+      justifyContent: 'center',
+      alignItems: 'center',
+      padding: spacing.xl,
+      backgroundColor: '#000',
+    },
+    webNotSupportedText: {
+      marginTop: spacing.lg,
+      fontSize: fontSizes.md,
+      color: 'rgba(255,255,255,0.72)',
+      textAlign: 'center',
+      lineHeight: 24,
+    },
   });
 }
 
-export const QRCodeScanner: React.FC<QRCodeScannerProps> = ({ visible, onClose }) => {
+// Web 端不支持扫码组件
+const QRCodeScannerWeb: React.FC<QRCodeScannerProps> = ({ visible, onClose }) => {
+  const themeColors = useAppColors();
+  const styles = useMemo(() => createQrScannerStyles(themeColors), [themeColors]);
+
+  return (
+    <Modal visible={visible} animationType="slide" onRequestClose={onClose}>
+      <View style={styles.container}>
+        <View style={styles.header}>
+          <TouchableOpacity onPress={onClose} style={styles.closeButton}>
+            <MaterialCommunityIcons name="close" size={24} color="#fff" />
+          </TouchableOpacity>
+          <Text style={styles.headerTitle}>扫码登录</Text>
+          <View style={styles.placeholder} />
+        </View>
+        <View style={styles.webNotSupportedContainer}>
+          <MaterialCommunityIcons name="web-off" size={64} color="rgba(255,255,255,0.5)" />
+          <Text style={styles.webNotSupportedText}>
+            扫码登录功能暂不支持网页端使用{'\n'}
+            请下载手机 App 体验完整功能
+          </Text>
+          <TouchableOpacity style={styles.permissionButton} onPress={onClose}>
+            <Text style={styles.permissionButtonText}>知道了</Text>
+          </TouchableOpacity>
+        </View>
+      </View>
+    </Modal>
+  );
+};
+
+// 原生端扫码组件
+const QRCodeScannerNative: React.FC<QRCodeScannerProps> = ({ visible, onClose }) => {
   const router = useRouter();
   const themeColors = useAppColors();
   const styles = useMemo(() => createQrScannerStyles(themeColors), [themeColors]);
-  const [permission, requestPermission] = useCameraPermissions();
+  
+  // 动态导入 expo-camera，避免 Web 端加载
+  const [cameraModule, setCameraModule] = useState<typeof import('expo-camera') | null>(null);
+  const [permission, setPermission] = useState<any>(null);
   const [scanned, setScanned] = useState(false);
 
   useEffect(() => {
-    if (visible) {
-      setScanned(false);
-      if (!permission?.granted) {
-        requestPermission();
-      }
+    if (visible && Platform.OS !== 'web') {
+      import('expo-camera').then((module) => {
+        setCameraModule(module);
+        const [perm, requestPerm] = module.useCameraPermissions();
+        setPermission(perm);
+        if (!perm?.granted) {
+          requestPerm();
+        }
+      });
     }
   }, [visible]);
 
@@ -178,7 +230,7 @@ export const QRCodeScanner: React.FC<QRCodeScannerProps> = ({ visible, onClose }
     }
   };
 
-  if (!permission?.granted) {
+  if (!cameraModule || !permission?.granted) {
     return (
       <Modal visible={visible} animationType="slide" onRequestClose={onClose}>
         <View style={styles.container}>
@@ -192,7 +244,10 @@ export const QRCodeScanner: React.FC<QRCodeScannerProps> = ({ visible, onClose }
           <View style={styles.permissionContainer}>
             <MaterialCommunityIcons name="camera-off" size={64} color="rgba(255,255,255,0.5)" />
             <Text style={styles.permissionText}>需要相机权限才能扫码</Text>
-            <TouchableOpacity style={styles.permissionButton} onPress={requestPermission}>
+            <TouchableOpacity 
+              style={styles.permissionButton} 
+              onPress={() => cameraModule?.useCameraPermissions()[1]()}
+            >
               <Text style={styles.permissionButtonText}>授予权限</Text>
             </TouchableOpacity>
           </View>
@@ -201,6 +256,8 @@ export const QRCodeScanner: React.FC<QRCodeScannerProps> = ({ visible, onClose }
     );
   }
 
+  const { CameraView } = cameraModule;
+
   return (
     <Modal visible={visible} animationType="slide" onRequestClose={onClose}>
       <View style={styles.container}>
@@ -243,4 +300,9 @@ export const QRCodeScanner: React.FC<QRCodeScannerProps> = ({ visible, onClose }
   );
 };
 
+// 根据平台导出不同组件
+export const QRCodeScanner: React.FC<QRCodeScannerProps> = Platform.OS === 'web' 
+  ? QRCodeScannerWeb 
+  : QRCodeScannerNative;
+
 export default QRCodeScanner;

src/components/call/CallScreen.tsx

@@ -0,0 +1,412 @@
+import React, { useEffect, useState } from 'react';
+import {
+ View,
+ Text,
+ StyleSheet,
+ TouchableOpacity,
+ Image,
+ StatusBar,
+} from 'react-native';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { callStore } from '../../stores/callStore';
+import { RTCView } from 'react-native-webrtc';
+
+const formatDuration = (seconds: number): string => {
+  const mins = Math.floor(seconds / 60);
+  const secs = seconds % 60;
+  return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
+};
+
+
+const CallScreen: React.FC = () => {
+  const currentCall = callStore((s) => s.currentCall);
+  const callDuration = callStore((s) => s.callDuration);
+  const peerStream = callStore((s) => s.peerStream);
+  const localStream = callStore((s) => s.localStream);
+  const endCall = callStore((s) => s.endCall);
+  const toggleMute = callStore((s) => s.toggleMute);
+  const toggleSpeaker = callStore((s) => s.toggleSpeaker);
+  const toggleVideo = callStore((s) => s.toggleVideo);
+  const isMinimized = callStore((s) => s.isMinimized);
+  const toggleMinimize = callStore((s) => s.toggleMinimize);
+
+  // Track whether peer has video
+  const [hasPeerVideo, setHasPeerVideo] = useState(false);
+  // Track whether local has video
+  const [hasLocalVideo, setHasLocalVideo] = useState(false);
+
+  // Check peer stream for video tracks
+  useEffect(() => {
+    if (peerStream) {
+      const videoTracks = peerStream.getVideoTracks();
+      const hasVideo = videoTracks.length > 0 && videoTracks.some((t) => t.enabled);
+      setHasPeerVideo(hasVideo);
+    } else {
+      setHasPeerVideo(false);
+    }
+  }, [peerStream]);
+  // Check local stream for video tracks
+  useEffect(() => {
+    if (localStream) {
+      const videoTracks = localStream.getVideoTracks();
+      const hasVideo = videoTracks.length > 0 && videoTracks.some((t) => t.enabled);
+      setHasLocalVideo(hasVideo);
+    } else {
+      setHasLocalVideo(false);
+    }
+  }, [localStream]);
+  // Don't render full screen when minimized or no call
+  if (!currentCall || isMinimized) return null;
+  const getStatusText = (): string => {
+    switch (currentCall.status) {
+      case 'calling':
+        return '正在等待对方接听...';
+      case 'ringing':
+        return '来电响铃中...';
+      case 'connecting':
+        return '连接中...';
+      case 'connected':
+        return formatDuration(callDuration);
+      case 'reconnecting':
+        return '网络重连中...';
+      case 'ended':
+        return '通话已结束';
+      case 'failed':
+        return '连接失败';
+      default:
+        return '';
+    }
+  };
+  const handleEndCall = () => {
+    endCall('hangup');
+  };
+  const handleToggleMute = () => {
+    toggleMute();
+  };
+  const handleToggleSpeaker = () => {
+    toggleSpeaker();
+  };
+  const handleToggleVideo = () => {
+    toggleVideo();
+  };
+  const handleMinimize = () => {
+    toggleMinimize();
+  };
+  // Determine if we should show video UI
+  const showRemoteVideo = hasPeerVideo;
+  // Use currentCall.isVideoEnabled directly for local video
+  // This is more reliable than checking localStream.getVideoTracks()
+  // because the stream object reference may not trigger useEffect properly
+  const showLocalVideo = currentCall?.isVideoEnabled && localStream;
+  const isVideoCallActive = showRemoteVideo || showLocalVideo;
+  return (
+    <View style={styles.container}>
+      <StatusBar barStyle="light-content" backgroundColor="transparent" translucent />
+      {/* Background */}
+      <View style={styles.background} />
+      {/* Remote video - full screen when peer has video */}
+      {showRemoteVideo && peerStream && (
+        <RTCView
+          streamURL={peerStream.toURL()}
+          style={styles.fullScreenVideo}
+          objectFit="cover"
+          mirror={false}
+        />
+      )}
+      {/* Local video - picture in picture */}
+      {showLocalVideo && localStream && (
+        <View style={styles.localVideoContainer}>
+          <RTCView
+            streamURL={localStream.toURL()}
+            style={styles.localVideo}
+            objectFit="cover"
+            mirror={true}
+          />
+        </View>
+      )}
+      {/* Top area: minimize button */}
+      <View style={styles.topBar}>
+        <TouchableOpacity
+          style={styles.topButton}
+          onPress={handleMinimize}
+          activeOpacity={0.7}
+        >
+          <MaterialCommunityIcons name="chevron-down" size={28} color="#fff" />
+        </TouchableOpacity>
+      </View>
+      {/* Center: Peer info - only show when no video */}
+      {!isVideoCallActive && (
+        <View style={styles.centerArea}>
+          <View style={styles.avatarOuter}>
+            {currentCall.peerAvatar ? (
+              <Image source={{ uri: currentCall.peerAvatar }} style={styles.avatar} />
+            ) : (
+              <View style={[styles.avatar, styles.avatarPlaceholder]}>
+                <Text style={styles.avatarText}>
+                  {currentCall.peerName?.charAt(0).toUpperCase() || '?'}
+                </Text>
+              </View>
+            )}
+          </View>
+          <Text style={styles.peerName} numberOfLines={1}>
+            {currentCall.peerName || '未知用户'}
+          </Text>
+          <Text style={styles.status}>{getStatusText()}</Text>
+        </View>
+      )}
+      {/* Peer name overlay when video is active */}
+      {isVideoCallActive && (
+        <View style={styles.videoOverlayInfo}>
+          <Text style={styles.videoPeerName} numberOfLines={1}>
+            {currentCall.peerName || '未知用户'}
+          </Text>
+          <Text style={styles.videoStatus}>{getStatusText()}</Text>
+        </View>
+      )}
+      {/* Bottom controls */}
+      <View style={styles.controls}>
+        <View style={styles.controlRow}>
+          {/* Mute */}
+          <TouchableOpacity
+            style={[styles.controlButton, currentCall.isMuted && styles.controlButtonActive]}
+            onPress={handleToggleMute}
+            activeOpacity={0.7}
+          >
+            <View style={[styles.controlCircle, currentCall.isMuted && styles.controlCircleActive]}>
+              <MaterialCommunityIcons
+                name={currentCall.isMuted ? 'microphone-off' : 'microphone'}
+                size={26}
+                color={currentCall.isMuted ? '#333' : '#fff'}
+              />
+            </View>
+            <Text style={[styles.controlLabel, currentCall.isMuted && styles.controlLabelActive]}>
+              {currentCall.isMuted ? '取消静音' : '静音'}
+            </Text>
+          </TouchableOpacity>
+          {/* Video toggle */}
+          <TouchableOpacity
+            style={[styles.controlButton, hasLocalVideo && styles.controlButtonActive]}
+            onPress={handleToggleVideo}
+            activeOpacity={0.7}
+          >
+            <View style={[styles.controlCircle, hasLocalVideo && styles.controlCircleActive]}>
+              <MaterialCommunityIcons
+                name={hasLocalVideo ? 'video' : 'video-off'}
+                size={26}
+                color={hasLocalVideo ? '#333' : '#fff'}
+              />
+            </View>
+            <Text style={[styles.controlLabel, hasLocalVideo && styles.controlLabelActive]}>
+              {hasLocalVideo ? '关闭摄像头' : '打开摄像头'}
+            </Text>
+          </TouchableOpacity>
+          {/* Speaker */}
+          <TouchableOpacity
+            style={[styles.controlButton, currentCall.isSpeakerOn && styles.controlButtonActive]}
+            onPress={handleToggleSpeaker}
+            activeOpacity={0.7}
+          >
+            <View style={[styles.controlCircle, currentCall.isSpeakerOn && styles.controlCircleActive]}>
+              <MaterialCommunityIcons
+                name={currentCall.isSpeakerOn ? 'volume-high' : 'cellphone'}
+                size={26}
+                color={currentCall.isSpeakerOn ? '#333' : '#fff'}
+              />
+            </View>
+            <Text style={[styles.controlLabel, currentCall.isSpeakerOn && styles.controlLabelActive]}>
+              {currentCall.isSpeakerOn ? '免提' : '听筒'}
+            </Text>
+          </TouchableOpacity>
+        </View>
+        {/* End call - prominent red button */}
+        <TouchableOpacity
+          style={styles.endCallButton}
+          onPress={handleEndCall}
+          activeOpacity={0.8}
+        >
+          <View style={styles.endCallCircle}>
+            <MaterialCommunityIcons name="phone-hangup" size={32} color="#fff" />
+          </View>
+          <Text style={styles.endCallLabel}>挂断</Text>
+        </TouchableOpacity>
+      </View>
+    </View>
+  );
+};
+
+const CONTROL_CIRCLE_SIZE = 56;
+const END_CALL_SIZE = 64;
+
+const styles = StyleSheet.create({
+  container: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: '#1A1A2E',
+    zIndex: 9999,
+  },
+  background: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: '#1A1A2E',
+  },
+  topBar: {
+    position: 'absolute',
+    top: 50,
+    left: 0,
+    right: 0,
+    flexDirection: 'row',
+    justifyContent: 'center',
+    alignItems: 'center',
+    height: 44,
+    zIndex: 100,
+  },
+  topButton: {
+    width: 44,
+    height: 44,
+    borderRadius: 22,
+    backgroundColor: 'rgba(255, 255, 255, 0.1)',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  centerArea: {
+    position: 'absolute',
+    top: '28%',
+    left: 0,
+    right: 0,
+    alignItems: 'center',
+    paddingHorizontal: 30,
+  },
+  avatarOuter: {
+    marginBottom: 16,
+  },
+  avatar: {
+    width: 100,
+    height: 100,
+    borderRadius: 50,
+    backgroundColor: '#3A3A5C',
+  },
+  avatarPlaceholder: {
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  avatarText: {
+    fontSize: 40,
+    color: '#fff',
+    fontWeight: '600',
+  },
+  peerName: {
+    fontSize: 22,
+    fontWeight: '600',
+    color: '#FFFFFF',
+    marginBottom: 6,
+    textAlign: 'center',
+    maxWidth: 280,
+  },
+  status: {
+    fontSize: 14,
+    color: 'rgba(255, 255, 255, 0.5)',
+    letterSpacing: 0.3,
+  },
+  fullScreenVideo: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: '#1A1A2E',
+  },
+  localVideoContainer: {
+    position: 'absolute',
+    top: 100,
+    right: 20,
+    width: 120,
+    height: 160,
+    borderRadius: 16,
+    overflow: 'hidden',
+    backgroundColor: '#2A2A4E',
+    borderWidth: 2,
+    borderColor: 'rgba(255, 255, 255, 0.2)',
+    zIndex: 50,
+  },
+  localVideo: {
+    width: '100%',
+    height: '100%',
+  },
+  videoOverlayInfo: {
+    position: 'absolute',
+    top: 100,
+    left: 0,
+    right: 0,
+    alignItems: 'center',
+    zIndex: 50,
+  },
+  videoPeerName: {
+    fontSize: 18,
+    fontWeight: '600',
+    color: '#FFFFFF',
+    textShadowColor: 'rgba(0, 0, 0, 0.5)',
+    textShadowOffset: { width: 0, height: 1 },
+    textShadowRadius: 2,
+  },
+  videoStatus: {
+    fontSize: 14,
+    color: 'rgba(255, 255, 255, 0.8)',
+    marginTop: 4,
+    textShadowColor: 'rgba(0, 0, 0, 0.5)',
+    textShadowOffset: { width: 0, height: 1 },
+    textShadowRadius: 2,
+  },
+  controls: {
+    position: 'absolute',
+    bottom: 60,
+    left: 0,
+    right: 0,
+    alignItems: 'center',
+    zIndex: 100,
+  },
+  controlRow: {
+    flexDirection: 'row',
+    justifyContent: 'center',
+    gap: 24,
+    marginBottom: 24,
+  },
+  controlButton: {
+    alignItems: 'center',
+    width: 70,
+  },
+  controlCircle: {
+    width: 56,
+    height: 56,
+    borderRadius: 28,
+    backgroundColor: 'rgba(255, 255, 255, 0.12)',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  controlCircleActive: {
+    backgroundColor: '#FFFFFF',
+  },
+  controlButtonActive: {},
+  controlLabel: {
+    fontSize: 11,
+    color: 'rgba(255, 255, 255, 0.55)',
+    marginTop: 8,
+    textAlign: 'center',
+  },
+  controlLabelActive: {
+    color: '#FFFFFF',
+    fontWeight: '500',
+  },
+  endCallButton: {
+    alignItems: 'center',
+  },
+  endCallCircle: {
+    width: 64,
+    height: 64,
+    borderRadius: 32,
+    backgroundColor: '#E54D42',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  endCallLabel: {
+    fontSize: 11,
+    color: 'rgba(255, 255, 255, 0.55)',
+    marginTop: 8,
+  },
+});
+
+
+export default CallScreen;

src/components/call/CallScreen.web.tsx

@@ -0,0 +1,160 @@
+import React from 'react';
+import {
+  View,
+  Text,
+  StyleSheet,
+  TouchableOpacity,
+  StatusBar,
+} from 'react-native';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { callStore } from '../../stores/callStore';
+
+const formatDuration = (seconds: number): string => {
+  const mins = Math.floor(seconds / 60);
+  const secs = seconds % 60;
+  return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
+};
+
+const CallScreen: React.FC = () => {
+  const currentCall = callStore((s) => s.currentCall);
+  const callDuration = callStore((s) => s.callDuration);
+  const endCall = callStore((s) => s.endCall);
+  const isMinimized = callStore((s) => s.isMinimized);
+
+  // Don't render full screen when minimized or no call
+  if (!currentCall || isMinimized) return null;
+
+  const getStatusText = (): string => {
+    switch (currentCall.status) {
+      case 'ringing':
+        return '通话功能暂不支持网页端';
+      case 'connecting':
+        return '通话功能暂不支持网页端';
+      case 'connected':
+        return '通话功能暂不支持网页端';
+      case 'ending':
+        return '通话已结束';
+      default:
+        return '';
+    }
+  };
+
+  const handleEndCall = () => {
+    endCall('hangup');
+  };
+
+  return (
+    <View style={styles.container}>
+      <StatusBar barStyle="light-content" backgroundColor="transparent" translucent />
+
+      {/* Background - single consistent color */}
+      <View style={styles.background} />
+
+      {/* Center: Peer info */}
+      <View style={styles.centerArea}>
+        <View style={styles.avatarOuter}>
+          <View style={[styles.avatar, styles.avatarPlaceholder]}>
+            <MaterialCommunityIcons name="web-off" size={50} color="#fff" />
+          </View>
+        </View>
+        <Text style={styles.peerName} numberOfLines={1}>
+          {currentCall.peerName || '未知用户'}
+        </Text>
+        <Text style={styles.status}>{getStatusText()}</Text>
+      </View>
+
+      {/* Bottom controls */}
+      <View style={styles.controls}>
+        {/* End call - prominent red button */}
+        <TouchableOpacity
+          style={styles.endCallButton}
+          onPress={handleEndCall}
+          activeOpacity={0.8}
+        >
+          <View style={styles.endCallCircle}>
+            <MaterialCommunityIcons name="phone-hangup" size={32} color="#fff" />
+          </View>
+          <Text style={styles.endCallLabel}>关闭</Text>
+        </TouchableOpacity>
+      </View>
+    </View>
+  );
+};
+
+const END_CALL_SIZE = 64;
+
+const styles = StyleSheet.create({
+  container: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: '#1A1A2E',
+    zIndex: 9999,
+  },
+  background: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: '#1A1A2E',
+  },
+  centerArea: {
+    position: 'absolute',
+    top: '28%',
+    left: 0,
+    right: 0,
+    alignItems: 'center',
+    paddingHorizontal: 30,
+  },
+  avatarOuter: {
+    marginBottom: 16,
+  },
+  avatar: {
+    width: 100,
+    height: 100,
+    borderRadius: 50,
+    backgroundColor: '#3A3A5C',
+  },
+  avatarPlaceholder: {
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  avatarText: {
+    fontSize: 40,
+    color: '#fff',
+    fontWeight: '600',
+  },
+  peerName: {
+    fontSize: 22,
+    fontWeight: '600',
+    color: '#FFFFFF',
+    marginBottom: 6,
+    textAlign: 'center',
+    maxWidth: 280,
+  },
+  status: {
+    fontSize: 14,
+    color: 'rgba(255, 255, 255, 0.5)',
+    letterSpacing: 0.3,
+  },
+  controls: {
+    position: 'absolute',
+    bottom: 60,
+    left: 0,
+    right: 0,
+    alignItems: 'center',
+  },
+  endCallButton: {
+    alignItems: 'center',
+  },
+  endCallCircle: {
+    width: END_CALL_SIZE,
+    height: END_CALL_SIZE,
+    borderRadius: END_CALL_SIZE / 2,
+    backgroundColor: '#E54D42',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  endCallLabel: {
+    fontSize: 11,
+    color: 'rgba(255, 255, 255, 0.55)',
+    marginTop: 8,
+  },
+});
+
+export default CallScreen;

src/components/call/FloatingCallWindow.tsx

@@ -0,0 +1,159 @@
+import React from 'react';
+import {
+  View,
+  Text,
+  StyleSheet,
+  TouchableOpacity,
+  Image,
+} from 'react-native';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { callStore } from '../../stores/callStore';
+
+const formatDuration = (seconds: number): string => {
+  const mins = Math.floor(seconds / 60);
+  const secs = seconds % 60;
+  return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
+};
+
+const FloatingCallWindow: React.FC = () => {
+  const currentCall = callStore((s) => s.currentCall);
+  const callDuration = callStore((s) => s.callDuration);
+  const isMinimized = callStore((s) => s.isMinimized);
+  const toggleMinimize = callStore((s) => s.toggleMinimize);
+  const endCall = callStore((s) => s.endCall);
+
+  // Only show when there's an active call and it's minimized
+  if (!currentCall || !isMinimized) return null;
+
+  const getStatusText = (): string => {
+    switch (currentCall.status) {
+      case 'calling':
+        return '等待接听...';
+      case 'ringing':
+        return '来电响铃...';
+      case 'connecting':
+        return '连接中...';
+      case 'connected':
+        return formatDuration(callDuration);
+      case 'reconnecting':
+        return '重连中...';
+      case 'ended':
+        return '已结束';
+      case 'failed':
+        return '连接失败';
+      default:
+        return '';
+    }
+  };
+
+  return (
+    <View style={styles.container}>
+      <TouchableOpacity
+        style={styles.window}
+        onPress={toggleMinimize}
+        activeOpacity={0.9}
+      >
+        {/* Avatar */}
+        <View style={styles.avatarContainer}>
+          {currentCall.peerAvatar ? (
+            <Image
+              source={{ uri: currentCall.peerAvatar }}
+              style={styles.avatar}
+            />
+          ) : (
+            <View style={[styles.avatar, styles.avatarPlaceholder]}>
+              <Text style={styles.avatarText}>
+                {currentCall.peerName?.charAt(0).toUpperCase() || '?'}
+              </Text>
+            </View>
+          )}
+        </View>
+
+        {/* Info */}
+        <View style={styles.info}>
+          <Text style={styles.name} numberOfLines={1}>
+            {currentCall.peerName || '未知用户'}
+          </Text>
+          <Text style={styles.status}>{getStatusText()}</Text>
+        </View>
+
+        {/* End call button */}
+        <TouchableOpacity
+          style={styles.endButton}
+          onPress={(e) => {
+            e.stopPropagation();
+            endCall('hangup');
+          }}
+          activeOpacity={0.7}
+        >
+          <MaterialCommunityIcons name="phone-hangup" size={20} color="#fff" />
+        </TouchableOpacity>
+      </TouchableOpacity>
+    </View>
+  );
+};
+
+const styles = StyleSheet.create({
+  container: {
+    position: 'absolute',
+    top: 100,
+    left: 16,
+    right: 16,
+    zIndex: 10000,
+  },
+  window: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    backgroundColor: '#2A2A4E',
+    borderRadius: 16,
+    padding: 12,
+    shadowColor: '#000',
+    shadowOffset: { width: 0, height: 4 },
+    shadowOpacity: 0.3,
+    shadowRadius: 8,
+    elevation: 8,
+  },
+  avatarContainer: {
+    marginRight: 12,
+  },
+  avatar: {
+    width: 44,
+    height: 44,
+    borderRadius: 22,
+    backgroundColor: '#3A3A5C',
+  },
+  avatarPlaceholder: {
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  avatarText: {
+    fontSize: 18,
+    color: '#fff',
+    fontWeight: '600',
+  },
+  info: {
+    flex: 1,
+    justifyContent: 'center',
+  },
+  name: {
+    fontSize: 15,
+    fontWeight: '600',
+    color: '#FFFFFF',
+    marginBottom: 2,
+  },
+  status: {
+    fontSize: 12,
+    color: 'rgba(255, 255, 255, 0.6)',
+  },
+  endButton: {
+    width: 36,
+    height: 36,
+    borderRadius: 18,
+    backgroundColor: '#E54D42',
+    justifyContent: 'center',
+    alignItems: 'center',
+    marginLeft: 8,
+  },
+});
+
+export default FloatingCallWindow;

src/components/call/IncomingCallModal.tsx

@@ -0,0 +1,276 @@
+import React, { useEffect, useRef } from 'react';
+import {
+  View,
+  Text,
+  StyleSheet,
+  TouchableOpacity,
+  Image,
+  Animated,
+  Modal,
+  StatusBar,
+  Dimensions,
+} from 'react-native';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { callStore } from '../../stores/callStore';
+
+const { height: SCREEN_HEIGHT } = Dimensions.get('window');
+
+const IncomingCallModal: React.FC = () => {
+  const incomingCall = callStore((s) => s.incomingCall);
+  const acceptCall = callStore((s) => s.acceptCall);
+  const rejectCall = callStore((s) => s.rejectCall);
+
+  const pulseAnim = useRef(new Animated.Value(1)).current;
+  const rippleAnim = useRef(new Animated.Value(0)).current;
+
+  useEffect(() => {
+    if (incomingCall) {
+      const pulse = Animated.loop(
+        Animated.sequence([
+          Animated.timing(pulseAnim, {
+            toValue: 1.06,
+            duration: 1000,
+            useNativeDriver: true,
+          }),
+          Animated.timing(pulseAnim, {
+            toValue: 1,
+            duration: 1000,
+            useNativeDriver: true,
+          }),
+        ])
+      );
+
+      const ripple = Animated.loop(
+        Animated.sequence([
+          Animated.timing(rippleAnim, {
+            toValue: 1,
+            duration: 2000,
+            useNativeDriver: true,
+          }),
+          Animated.timing(rippleAnim, {
+            toValue: 0,
+            duration: 0,
+            useNativeDriver: true,
+          }),
+        ])
+      );
+
+      Animated.parallel([pulse, ripple]).start();
+      return () => {
+        pulse.stop();
+        ripple.stop();
+      };
+    }
+  }, [incomingCall, pulseAnim, rippleAnim]);
+
+  const handleAccept = () => {
+    acceptCall();
+  };
+
+  const handleReject = () => {
+    rejectCall();
+  };
+
+  if (!incomingCall) return null;
+
+  return (
+    <Modal
+      visible={!!incomingCall}
+      transparent
+      animationType="fade"
+      statusBarTranslucent
+    >
+      <View style={styles.overlay}>
+        <StatusBar barStyle="light-content" backgroundColor="transparent" translucent />
+
+        {/* Avatar with ripple effect - positioned in upper area */}
+        <View style={styles.avatarSection}>
+          {/* Ripple rings */}
+          {[0, 1, 2].map((i) => (
+            <Animated.View
+              key={i}
+              style={[
+                styles.rippleRing,
+                {
+                  transform: [
+                    {
+                      scale: rippleAnim.interpolate({
+                        inputRange: [0, 1],
+                        outputRange: [1, 1.5 + i * 0.2],
+                      }),
+                    },
+                  ],
+                  opacity: rippleAnim.interpolate({
+                    inputRange: [0, 0.4, 1],
+                    outputRange: [0.25, 0.12, 0],
+                  }),
+                },
+              ]}
+            />
+          ))}
+
+          <Animated.View
+            style={[styles.avatarContainer, { transform: [{ scale: pulseAnim }] }]}
+          >
+            {incomingCall.callerAvatar ? (
+              <Image
+                source={{ uri: incomingCall.callerAvatar }}
+                style={styles.avatar}
+              />
+            ) : (
+              <View style={[styles.avatar, styles.avatarPlaceholder]}>
+                <Text style={styles.avatarText}>
+                  {incomingCall.callerName?.charAt(0).toUpperCase() || '?'}
+                </Text>
+              </View>
+            )}
+          </Animated.View>
+        </View>
+
+        {/* Caller info */}
+        <View style={styles.infoSection}>
+          <Text style={styles.callerName} numberOfLines={1}>
+            {incomingCall.callerName || '未知用户'}
+          </Text>
+          <Text style={styles.callType}>
+            {incomingCall.callType === 'video' ? '视频通话' : '语音通话'}
+          </Text>
+        </View>
+
+        {/* Bottom controls */}
+        <View style={styles.controls}>
+          {/* Decline */}
+          <TouchableOpacity
+            style={styles.actionButton}
+            onPress={handleReject}
+            activeOpacity={0.8}
+          >
+            <View style={styles.declineCircle}>
+              <MaterialCommunityIcons name="phone-hangup" size={28} color="#fff" />
+            </View>
+            <Text style={styles.actionLabel}>拒绝</Text>
+          </TouchableOpacity>
+
+          {/* Accept */}
+          <TouchableOpacity
+            style={styles.actionButton}
+            onPress={handleAccept}
+            activeOpacity={0.8}
+          >
+            <View style={styles.acceptCircle}>
+              <MaterialCommunityIcons name="phone" size={28} color="#fff" />
+            </View>
+            <Text style={styles.actionLabel}>接听</Text>
+          </TouchableOpacity>
+        </View>
+      </View>
+    </Modal>
+  );
+};
+
+const AVATAR_SIZE = 100;
+const ACTION_CIRCLE_SIZE = 60;
+
+const styles = StyleSheet.create({
+  overlay: {
+    flex: 1,
+    backgroundColor: '#0D0D0D',
+  },
+  avatarSection: {
+    position: 'absolute',
+    top: '18%',
+    left: 0,
+    right: 0,
+    height: AVATAR_SIZE + 60,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  rippleRing: {
+    position: 'absolute',
+    width: AVATAR_SIZE + 16,
+    height: AVATAR_SIZE + 16,
+    borderRadius: (AVATAR_SIZE + 16) / 2,
+    borderWidth: 2,
+    borderColor: '#4CD964',
+  },
+  avatarContainer: {
+    width: AVATAR_SIZE + 8,
+    height: AVATAR_SIZE + 8,
+    borderRadius: (AVATAR_SIZE + 8) / 2,
+    backgroundColor: '#4CD964',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  avatar: {
+    width: AVATAR_SIZE,
+    height: AVATAR_SIZE,
+    borderRadius: AVATAR_SIZE / 2,
+    backgroundColor: '#3A3A5C',
+  },
+  avatarPlaceholder: {
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  avatarText: {
+    fontSize: 36,
+    color: '#fff',
+    fontWeight: '600',
+  },
+  infoSection: {
+    position: 'absolute',
+    top: '42%',
+    left: 0,
+    right: 0,
+    alignItems: 'center',
+    paddingHorizontal: 40,
+  },
+  callerName: {
+    fontSize: 24,
+    fontWeight: '600',
+    color: '#FFFFFF',
+    marginBottom: 6,
+    textAlign: 'center',
+    maxWidth: 280,
+  },
+  callType: {
+    fontSize: 14,
+    color: 'rgba(255, 255, 255, 0.5)',
+    letterSpacing: 0.3,
+  },
+  controls: {
+    position: 'absolute',
+    bottom: '12%',
+    left: 0,
+    right: 0,
+    flexDirection: 'row',
+    justifyContent: 'center',
+    gap: 60,
+  },
+  actionButton: {
+    alignItems: 'center',
+    width: 80,
+  },
+  declineCircle: {
+    width: ACTION_CIRCLE_SIZE,
+    height: ACTION_CIRCLE_SIZE,
+    borderRadius: ACTION_CIRCLE_SIZE / 2,
+    backgroundColor: '#E54D42',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  acceptCircle: {
+    width: ACTION_CIRCLE_SIZE,
+    height: ACTION_CIRCLE_SIZE,
+    borderRadius: ACTION_CIRCLE_SIZE / 2,
+    backgroundColor: '#4CD964',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  actionLabel: {
+    fontSize: 12,
+    color: 'rgba(255, 255, 255, 0.6)',
+    marginTop: 10,
+  },
+});
+
+export default IncomingCallModal;

src/components/call/index.ts

@@ -0,0 +1,3 @@
+export { default as CallScreen } from './CallScreen';
+export { default as IncomingCallModal } from './IncomingCallModal';
+export { default as FloatingCallWindow } from './FloatingCallWindow';

src/components/common/Text.tsx

@@ -4,8 +4,8 @@
  */
 
 import React from 'react';
-import { Text as RNText, TextProps, StyleSheet, TextStyle, ViewStyle } from 'react-native';
-import { useAppColors, fontSizes } from '../../theme';
+import { Text as RNText, TextProps, StyleSheet, TextStyle, ViewStyle, Platform } from 'react-native';
+import { useAppColors, fontSizes, fontWeights } from '../../theme';
 
 type TextVariant = 'h1' | 'h2' | 'h3' | 'body' | 'caption' | 'label';
 
@@ -16,38 +16,45 @@ interface CustomTextProps extends Omit<TextProps, 'style'> {
   numberOfLines?: number;
   onPress?: () => void;
   style?: TextStyle | TextStyle[];
+  weight?: 'regular' | 'medium' | 'semibold' | 'bold';
 }
 
 const variantStyles: Record<TextVariant, object> = {
   h1: {
     fontSize: fontSizes['4xl'],
-    fontWeight: '700',
-    lineHeight: fontSizes['4xl'] * 1.4,
+    fontWeight: fontWeights.bold,
+    lineHeight: fontSizes['4xl'] * 1.3,
+    letterSpacing: -0.5,
   },
   h2: {
     fontSize: fontSizes['3xl'],
-    fontWeight: '600',
-    lineHeight: fontSizes['3xl'] * 1.4,
+    fontWeight: fontWeights.semibold,
+    lineHeight: fontSizes['3xl'] * 1.3,
+    letterSpacing: -0.3,
   },
   h3: {
     fontSize: fontSizes['2xl'],
-    fontWeight: '600',
+    fontWeight: fontWeights.semibold,
     lineHeight: fontSizes['2xl'] * 1.3,
+    letterSpacing: -0.2,
   },
   body: {
     fontSize: fontSizes.md,
-    fontWeight: '400',
-    lineHeight: fontSizes.md * 1.5,
+    fontWeight: fontWeights.regular,
+    lineHeight: fontSizes.md * 1.6,
+    letterSpacing: 0.1,
   },
   caption: {
     fontSize: fontSizes.sm,
-    fontWeight: '400',
-    lineHeight: fontSizes.sm * 1.4,
+    fontWeight: fontWeights.regular,
+    lineHeight: fontSizes.sm * 1.5,
+    letterSpacing: 0.2,
   },
   label: {
     fontSize: fontSizes.xs,
-    fontWeight: '500',
+    fontWeight: fontWeights.medium,
     lineHeight: fontSizes.xs * 1.4,
+    letterSpacing: 0.3,
   },
 };
 
@@ -55,6 +62,7 @@ const Text: React.FC<CustomTextProps> = ({
   children,
   variant = 'body',
   color,
+  weight,
   numberOfLines,
   onPress,
   style,
@@ -64,6 +72,7 @@ const Text: React.FC<CustomTextProps> = ({
   const textStyle = [
     styles.base,
     variantStyles[variant],
+    weight ? { fontWeight: fontWeights[weight] } : null,
     color ? { color } : { color: colors.text.primary },
     style,
   ];

src/core/usecases/ProcessMessageUseCase.ts

@@ -5,7 +5,7 @@
  */
 
 import { messageRepository } from '../../data/repositories/MessageRepository';
-import { sseClient, SSEEventType } from '../../data/datasources/SSEClient';
+import { wsClient, WSEventType } from '../../data/datasources/WSClient';
 import {
   Message,
   Conversation,
@@ -62,7 +62,7 @@ class ProcessMessageUseCase {
    */
   initialize(currentUserId: string | null): void {
     this.currentUserId = currentUserId;
-    this.setupSSEListeners();
+    this.setupWSListeners();
   }
 
   /**
@@ -81,49 +81,49 @@ class ProcessMessageUseCase {
   /**
    * 设置SSE监听器
    */
-  private setupSSEListeners(): void {
+  private setupWSListeners(): void {
     // 监听私聊消息
-    const unsubChat = sseClient.on('chat', (message) => {
+    const unsubChat = wsClient.on('chat', (message) => {
       this.handleNewMessage(message);
     });
 
     // 监听群聊消息
-    const unsubGroupMessage = sseClient.on('group_message', (message) => {
+    const unsubGroupMessage = wsClient.on('group_message', (message) => {
       this.handleNewMessage(message);
     });
 
     // 监听私聊已读回执
-    const unsubRead = sseClient.on('read', (message) => {
+    const unsubRead = wsClient.on('read', (message) => {
       this.handleReadReceipt(message);
     });
 
     // 监听群聊已读回执
-    const unsubGroupRead = sseClient.on('group_read', (message) => {
+    const unsubGroupRead = wsClient.on('group_read', (message) => {
       this.handleGroupReadReceipt(message);
     });
 
     // 监听私聊消息撤回
-    const unsubRecall = sseClient.on('recall', (message) => {
+    const unsubRecall = wsClient.on('recall', (message) => {
       this.handleRecallMessage(message);
     });
 
     // 监听群聊消息撤回
-    const unsubGroupRecall = sseClient.on('group_recall', (message) => {
+    const unsubGroupRecall = wsClient.on('group_recall', (message) => {
       this.handleGroupRecallMessage(message);
     });
 
     // 监听群聊输入状态
-    const unsubGroupTyping = sseClient.on('group_typing', (message) => {
+    const unsubGroupTyping = wsClient.on('group_typing', (message) => {
       this.handleGroupTyping(message);
     });
 
     // 监听群通知
-    const unsubGroupNotice = sseClient.on('group_notice', (message) => {
+    const unsubGroupNotice = wsClient.on('group_notice', (message) => {
       this.handleGroupNotice(message);
     });
 
     // 监听连接状态
-    const unsubConnected = sseClient.on('connected', () => {
+    const unsubConnected = wsClient.on('connected', () => {
       this.notifySubscribers({
         type: 'connection_changed',
         payload: { connected: true },
@@ -131,7 +131,7 @@ class ProcessMessageUseCase {
       });
     });
 
-    const unsubDisconnected = sseClient.on('disconnected', () => {
+    const unsubDisconnected = wsClient.on('disconnected', () => {
       this.notifySubscribers({
         type: 'connection_changed',
         payload: { connected: false },

src/data/datasources/WSClient.ts

@@ -1,10 +1,10 @@
 /**
- * SSEClient - SSE连接管理
- * 只负责SSE连接管理，提供事件驱动架构
+ * WSClient - WebSocket连接管理
+ * 只负责WebSocket连接管理，提供事件驱动架构
  */
 
 import {
-  sseService,
+  wsService,
   WSChatMessage,
   WSGroupChatMessage,
   WSReadMessage,
@@ -14,13 +14,13 @@ import {
   WSGroupTypingMessage,
   WSGroupNoticeMessage,
   WSMessageType,
-} from '../../services/sseService';
+} from '../../services/wsService';
 
 // 事件处理器类型
 type EventHandler<T> = (data: T) => void;
 
-// SSE事件类型
-export interface SSEEvents {
+// WS事件类型
+export interface WSEvents {
   'chat': WSChatMessage;
   'group_message': WSGroupChatMessage;
   'read': WSReadMessage;
@@ -34,65 +34,65 @@ export interface SSEEvents {
   'error': Error;
 }
 
-export type SSEEventType = keyof SSEEvents;
+export type WSEventType = keyof WSEvents;
 
-class SSEClient {
-  private handlers: Map<SSEEventType, Set<EventHandler<any>>> = new Map();
+class WSClient {
+  private handlers: Map<WSEventType, Set<EventHandler<any>>> = new Map();
   private unsubscribeFns: Array<() => void> = [];
   private isInitialized = false;
 
   /**
-   * 初始化SSE监听
+   * 初始化WebSocket监听
    */
   initialize(): void {
     if (this.isInitialized) return;
 
     // 监听私聊消息
-    const unsubChat = sseService.on('chat', (message) => {
+    const unsubChat = wsService.on('chat', (message) => {
       this.emit('chat', message);
     });
 
     // 监听群聊消息
-    const unsubGroupMessage = sseService.on('group_message', (message) => {
+    const unsubGroupMessage = wsService.on('group_message', (message) => {
       this.emit('group_message', message);
     });
 
     // 监听私聊已读回执
-    const unsubRead = sseService.on('read', (message) => {
+    const unsubRead = wsService.on('read', (message) => {
       this.emit('read', message);
     });
 
     // 监听群聊已读回执
-    const unsubGroupRead = sseService.on('group_read', (message) => {
+    const unsubGroupRead = wsService.on('group_read', (message) => {
       this.emit('group_read', message);
     });
 
     // 监听私聊消息撤回
-    const unsubRecall = sseService.on('recall', (message) => {
+    const unsubRecall = wsService.on('recall', (message) => {
       this.emit('recall', message);
     });
 
     // 监听群聊消息撤回
-    const unsubGroupRecall = sseService.on('group_recall', (message) => {
+    const unsubGroupRecall = wsService.on('group_recall', (message) => {
       this.emit('group_recall', message);
     });
 
     // 监听群聊输入状态
-    const unsubGroupTyping = sseService.on('group_typing', (message) => {
+    const unsubGroupTyping = wsService.on('group_typing', (message) => {
       this.emit('group_typing', message);
     });
 
     // 监听群通知
-    const unsubGroupNotice = sseService.on('group_notice', (message) => {
+    const unsubGroupNotice = wsService.on('group_notice', (message) => {
       this.emit('group_notice', message);
     });
 
     // 监听连接状态
-    const unsubConnect = sseService.onConnect(() => {
+    const unsubConnect = wsService.onConnect(() => {
       this.emit('connected', undefined);
     });
 
-    const unsubDisconnect = sseService.onDisconnect(() => {
+    const unsubDisconnect = wsService.onDisconnect(() => {
       this.emit('disconnected', undefined);
     });
 
@@ -113,7 +113,7 @@ class SSEClient {
   }
 
   /**
-   * 销毁SSE监听
+   * 销毁WebSocket监听
    */
   destroy(): void {
     this.unsubscribeFns.forEach((fn) => fn());
@@ -125,9 +125,9 @@ class SSEClient {
   /**
    * 订阅事件
    */
-  on<T extends SSEEventType>(
+  on<T extends WSEventType>(
     event: T,
-    handler: EventHandler<SSEEvents[T]>
+    handler: EventHandler<WSEvents[T]>
   ): () => void {
     if (!this.handlers.has(event)) {
       this.handlers.set(event, new Set());
@@ -142,9 +142,9 @@ class SSEClient {
   /**
    * 触发事件
    */
-  private emit<T extends SSEEventType>(
+  private emit<T extends WSEventType>(
     event: T,
-    data: SSEEvents[T]
+    data: WSEvents[T]
   ): void {
     const handlers = this.handlers.get(event);
     if (handlers) {
@@ -152,7 +152,7 @@ class SSEClient {
         try {
           handler(data);
         } catch (error) {
-          console.error(`[SSEClient] 事件处理器执行失败: ${event}`, error);
+          console.error(`[WSClient] 事件处理器执行失败: ${event}`, error);
         }
       });
     }
@@ -162,23 +162,23 @@ class SSEClient {
    * 检查连接状态
    */
   isConnected(): boolean {
-    return sseService.isConnected();
+    return wsService.isConnected();
   }
 
   /**
-   * 启动SSE连接
+   * 启动WebSocket连接
    */
   async connect(): Promise<boolean> {
-    return sseService.start();
+    return wsService.start();
   }
 
   /**
-   * 断开SSE连接
+   * 断开WebSocket连接
    */
   disconnect(): void {
-    sseService.stop();
+    wsService.stop();
   }
 }
 
-export const sseClient = new SSEClient();
-export default sseClient;
+export const wsClient = new WSClient();
+export default wsClient;

src/data/repositories/MaterialRepository.ts

@@ -0,0 +1,289 @@
+/**
+ * 学习资料 Repository
+ * 提供学习资料的数据访问接口
+ */
+import type {
+  MaterialSubject,
+  MaterialFile,
+  MaterialFileType,
+} from '../../types/material';
+import { api } from '../../services/api';
+
+// ==================== 接口定义 ====================
+
+export interface GetMaterialsParams {
+  subjectId?: string;
+  fileType?: MaterialFileType;
+  keyword?: string;
+  sortBy?: 'createdAt' | 'downloadCount' | 'title';
+  sortOrder?: 'asc' | 'desc';
+  page?: number;
+  pageSize?: number;
+}
+
+export interface MaterialsResult {
+  materials: MaterialFile[];
+  total: number;
+  page: number;
+  pageSize: number;
+  hasMore: boolean;
+}
+
+// ==================== API 响应类型 ====================
+
+interface SubjectResponse {
+  id: string;
+  name: string;
+  icon: string;
+  color: string;
+  description: string;
+  sort_order: number;
+  is_active: boolean;
+  material_count: number;
+  created_at: string;
+  updated_at: string;
+}
+
+interface MaterialFileResponse {
+  id: string;
+  subject_id: string;
+  title: string;
+  description: string;
+  file_type: string;
+  file_size: number;
+  file_url: string;
+  file_name: string;
+  download_count: number;
+  author_id: string;
+  tags: string[];
+  status: string;
+  created_at: string;
+  updated_at: string;
+  subject?: SubjectResponse;
+}
+
+// ==================== 转换函数 ====================
+
+function toMaterialSubject(res: SubjectResponse): MaterialSubject {
+  return {
+    id: res.id,
+    name: res.name,
+    icon: res.icon,
+    color: res.color,
+    description: res.description,
+    sort_order: res.sort_order,
+    is_active: res.is_active,
+    material_count: res.material_count,
+    created_at: res.created_at,
+    updated_at: res.updated_at,
+  };
+}
+
+function toMaterialFile(res: MaterialFileResponse): MaterialFile {
+  return {
+    id: res.id,
+    subject_id: res.subject_id,
+    title: res.title,
+    description: res.description,
+    file_type: res.file_type as MaterialFileType,
+    file_size: res.file_size,
+    file_url: res.file_url,
+    file_name: res.file_name,
+    download_count: res.download_count,
+    author_id: res.author_id,
+    tags: res.tags || [],
+    status: res.status as 'active' | 'inactive',
+    created_at: res.created_at,
+    updated_at: res.updated_at,
+    subject: res.subject ? toMaterialSubject(res.subject) : undefined,
+  };
+}
+
+// ==================== Repository 实现 ====================
+
+/**
+ * 学习资料数据仓库
+ * 使用真实 API
+ */
+export class MaterialRepository {
+  private static instance: MaterialRepository;
+
+  private constructor() {}
+
+  static getInstance(): MaterialRepository {
+    if (!MaterialRepository.instance) {
+      MaterialRepository.instance = new MaterialRepository();
+    }
+    return MaterialRepository.instance;
+  }
+
+  /**
+   * 获取学科分类列表
+   */
+  async getSubjects(): Promise<MaterialSubject[]> {
+    try {
+      const response = await api.get<{ list: SubjectResponse[] }>('/materials/subjects');
+      return response.data.list.map(toMaterialSubject);
+    } catch (error) {
+      console.error('获取学科列表失败:', error);
+      return [];
+    }
+  }
+
+  /**
+   * 根据ID获取学科详情
+   */
+  async getSubjectById(id: string): Promise<MaterialSubject | null> {
+    try {
+      const response = await api.get<SubjectResponse>(`/materials/subjects/${id}`);
+      return toMaterialSubject(response.data);
+    } catch (error) {
+      console.error('获取学科详情失败:', error);
+      return null;
+    }
+  }
+
+  /**
+   * 获取资料列表
+   */
+  async getMaterials(params: GetMaterialsParams): Promise<MaterialsResult> {
+    const {
+      subjectId,
+      fileType,
+      keyword,
+      sortBy = 'createdAt',
+      sortOrder = 'desc',
+      page = 1,
+      pageSize = 20,
+    } = params;
+
+    try {
+      const queryParams: Record<string, any> = {
+        page,
+        page_size: pageSize,
+      };
+
+      if (subjectId) {
+        queryParams.subject_id = subjectId;
+      }
+      if (fileType) {
+        queryParams.file_type = fileType;
+      }
+      if (keyword) {
+        queryParams.keyword = keyword;
+      }
+
+      const response = await api.get<{
+        list: MaterialFileResponse[];
+        total: number;
+        page: number;
+        page_size: number;
+        has_more: boolean;
+      }>('/materials', queryParams);
+
+      return {
+        materials: response.data.list.map(toMaterialFile),
+        total: response.data.total,
+        page: response.data.page,
+        pageSize: response.data.page_size,
+        hasMore: response.data.has_more,
+      };
+    } catch (error) {
+      console.error('获取资料列表失败:', error);
+      return {
+        materials: [],
+        total: 0,
+        page: 1,
+        pageSize,
+        hasMore: false,
+      };
+    }
+  }
+
+  /**
+   * 根据ID获取资料详情
+   */
+  async getMaterialById(id: string): Promise<MaterialFile | null> {
+    try {
+      const response = await api.get<MaterialFileResponse>(`/materials/${id}`);
+      return toMaterialFile(response.data);
+    } catch (error) {
+      console.error('获取资料详情失败:', error);
+      return null;
+    }
+  }
+
+  /**
+   * 搜索资料
+   */
+  async searchMaterials(keyword: string, params?: { fileType?: MaterialFileType }): Promise<MaterialsResult> {
+    return this.getMaterials({
+      keyword,
+      fileType: params?.fileType,
+    });
+  }
+
+  /**
+   * 获取热门资料
+   */
+  async getHotMaterials(limit: number = 10): Promise<MaterialFile[]> {
+    try {
+      const response = await api.get<{
+        list: MaterialFileResponse[];
+        total: number;
+        page: number;
+        page_size: number;
+        has_more: boolean;
+      }>('/materials', {
+        page: 1,
+        page_size: limit,
+        sort_by: 'download_count',
+        sort_order: 'desc',
+      });
+      return response.data.list.map(toMaterialFile);
+    } catch (error) {
+      console.error('获取热门资料失败:', error);
+      return [];
+    }
+  }
+
+  /**
+   * 获取最新资料
+   */
+  async getLatestMaterials(limit: number = 10): Promise<MaterialFile[]> {
+    try {
+      const response = await api.get<{
+        list: MaterialFileResponse[];
+        total: number;
+        page: number;
+        page_size: number;
+        has_more: boolean;
+      }>('/materials', {
+        page: 1,
+        page_size: limit,
+        sort_by: 'created_at',
+        sort_order: 'desc',
+      });
+      return response.data.list.map(toMaterialFile);
+    } catch (error) {
+      console.error('获取最新资料失败:', error);
+      return [];
+    }
+  }
+
+  /**
+   * 获取资料的下载链接（增加下载次数）
+   */
+  async downloadMaterial(id: string): Promise<{ file_url: string; file_name: string } | null> {
+    try {
+      const response = await api.get<{ file_url: string; file_name: string }>(`/materials/${id}/download`);
+      return response.data;
+    } catch (error) {
+      console.error('获取下载链接失败:', error);
+      return null;
+    }
+  }
+}
+
+// 导出单例
+export const materialRepository = MaterialRepository.getInstance();

src/hooks/usePrefetch.ts

@@ -14,6 +14,7 @@ import { postManager } from '../stores/postManager';
 import { groupManager } from '../stores/groupManager';
 import { userManager } from '../stores/userManager';
 import { messageManager } from '../stores/messageManager';
+import type { PostListTab } from '../stores/postListSources';
 
 // ==================== 预取配置 ====================
 
@@ -134,7 +135,7 @@ const prefetchService = new PrefetchService();
  * 预取帖子数据
  * @param types 帖子类型数组
  */
-function prefetchPosts(types: string[] = ['latest', 'hot']): void {
+function prefetchPosts(types: PostListTab[] = ['latest', 'hot']): void {
   types.forEach((type, index) => {
     prefetchService.schedule({
       key: `posts:${type}:1`,
@@ -279,7 +280,7 @@ export function usePrefetch() {
   const hasInitialPrefetched = useRef(false);
 
   /** 预取帖子 */
-  const prefetchPostsData = useCallback((types?: string[]) => {
+  const prefetchPostsData = useCallback((types?: PostListTab[]) => {
     prefetchPosts(types);
   }, []);
 

src/navigation/hrefs.ts

@@ -155,3 +155,17 @@ export function hrefAuthRegister(): string {
 export function hrefAuthForgot(): string {
   return '/forgot-password';
 }
+
+// ==================== Materials (学习资料) ====================
+
+export function hrefMaterials(): string {
+  return '/apps/materials';
+}
+
+export function hrefMaterialSubject(subjectId: string): string {
+  return `/apps/materials/subject?subjectId=${encodeURIComponent(subjectId)}`;
+}
+
+export function hrefMaterialDetail(materialId: string): string {
+  return `/apps/materials/detail?materialId=${encodeURIComponent(materialId)}`;
+}

src/screens/apps/AppsScreen.tsx

@@ -18,7 +18,7 @@ import {
   type AppColors,
 } from '../../theme';
 import * as hrefs from '../../navigation/hrefs';
-import { Text, ResponsiveContainer } from '../../components/common';
+import { Text } from '../../components/common';
 import { useResponsive, useResponsiveSpacing, useBreakpointGTE } from '../../hooks/useResponsive';
 
 type AppItem = {
@@ -37,8 +37,18 @@ const APP_ENTRIES: AppItem[] = [
     icon: 'calendar-week',
     href: hrefs.hrefSchedule(),
   },
+  {
+    id: 'materials',
+    title: '学习资料',
+    subtitle: '按学科分类的学习资源网盘',
+    icon: 'folder-multiple',
+    href: hrefs.hrefMaterials(),
+  },
 ];
 
+// 应用卡片最大宽度设置
+const APP_CARD_MAX_WIDTH = 720;
+
 export const AppsScreen: React.FC = () => {
   const colors = useAppColors();
   const resolvedScheme = useResolvedColorScheme();
@@ -56,6 +66,9 @@ export const AppsScreen: React.FC = () => {
       shadowOpacity: 0.06,
       shadowRadius: 8,
       elevation: 2,
+      maxWidth: APP_CARD_MAX_WIDTH,
+      alignSelf: 'center' as const,
+      width: '100%' as const,
     }),
     [colors]
   );
@@ -129,28 +142,16 @@ export const AppsScreen: React.FC = () => {
         </View>
       </View>
 
-      {isWideScreen ? (
-        <ResponsiveContainer maxWidth={720}>
-          <ScrollView
-            style={styles.scroll}
-            contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}
-            showsVerticalScrollIndicator={false}
-          >
-            {renderTiles()}
-          </ScrollView>
-        </ResponsiveContainer>
-      ) : (
-        <ScrollView
-          style={styles.scroll}
-          contentContainerStyle={[
-            styles.scrollContent,
-            { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding },
-          ]}
-          showsVerticalScrollIndicator={false}
-        >
-          {renderTiles()}
-        </ScrollView>
-      )}
+      <ScrollView
+        style={styles.scroll}
+        contentContainerStyle={[
+          styles.scrollContent,
+          { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding },
+        ]}
+        showsVerticalScrollIndicator={false}
+      >
+        {renderTiles()}
+      </ScrollView>
     </SafeAreaView>
   );
 };

src/screens/home/HomeScreen.tsx

@@ -26,7 +26,7 @@ import { MaterialCommunityIcons } from '@expo/vector-icons';
 import { Gesture, GestureDetector } from 'react-native-gesture-handler';
 import { useAppColors, useResolvedColorScheme, spacing, borderRadius, shadows, type AppColors } from '../../theme';
 import { Post } from '../../types';
-import { useUserStore, useHomeTabBarVisibilityStore } from '../../stores';
+import { useUserStore, useHomeTabBarVisibilityStore, useHomeTabPressStore } from '../../stores';
 import { useCurrentUser } from '../../stores/authStore';
 import { channelService, postService } from '../../services';
 import { PostCard, TabBar, SearchBar } from '../../components/business';
@@ -212,9 +212,14 @@ export const HomeScreen: React.FC = () => {
 
   const setBottomTabBarHiddenByScroll = useHomeTabBarVisibilityStore((s) => s.setBottomTabBarHiddenByScroll);
   const bottomTabBarHiddenByScroll = useHomeTabBarVisibilityStore((s) => s.bottomTabBarHiddenByScroll);
+  const homeTabPressCount = useHomeTabPressStore((s) => s.pressCount);
   const homeListScrollYRef = useRef(0);
   const tabBarIdleRestoreTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
 
+  // FlatList 和 ScrollView 的 ref，用于滚动到顶部
+  const flatListRef = useRef<FlatList<Post> | null>(null);
+  const scrollViewRef = useRef<ScrollView | null>(null);
+
   const clearTabBarIdleRestoreTimer = useCallback(() => {
     if (tabBarIdleRestoreTimerRef.current != null) {
       clearTimeout(tabBarIdleRestoreTimerRef.current);
@@ -269,6 +274,19 @@ export const HomeScreen: React.FC = () => {
     }
   }, [showSearch, clearTabBarIdleRestoreTimer, setBottomTabBarHiddenByScroll]);
 
+  // 监听首页 Tab 点击事件，滚动到顶部
+  useEffect(() => {
+    if (homeTabPressCount > 0) {
+      // 滚动 FlatList 到顶部
+      flatListRef.current?.scrollToOffset({ offset: 0, animated: true });
+      // 滚动 ScrollView 到顶部（网格模式）
+      scrollViewRef.current?.scrollTo({ y: 0, animated: true });
+      // 重置底部 Tab 栏状态
+      setBottomTabBarHiddenByScroll(false);
+      homeListScrollYRef.current = 0;
+    }
+  }, [homeTabPressCount, setBottomTabBarHiddenByScroll]);
+
   /** 横向胶囊条滚动位置：切换频道刷新列表时不重置 */
   const capsuleHScrollRef = useRef<ScrollView | null>(null);
   const capsuleScrollXRef = useRef(0);
@@ -819,6 +837,7 @@ export const HomeScreen: React.FC = () => {
       // 移动端使用瀑布流布局（2列）
       return (
         <ScrollView
+          ref={scrollViewRef}
           style={styles.waterfallScroll}
           contentContainerStyle={[
             styles.waterfallContainer,
@@ -899,6 +918,7 @@ export const HomeScreen: React.FC = () => {
     // 移动端和宽屏都使用单列 FlatList，宽屏下居中显示
     return (
       <FlatList
+        ref={flatListRef}
         data={displayPosts}
         renderItem={renderPostList}
         keyExtractor={keyExtractor}

src/screens/home/PostDetailScreen.tsx

@@ -895,61 +895,48 @@ export const PostDetailScreen: React.FC = () => {
     }
   };
 
-  // 点赞评论（包括回复）
+  // 点赞评论（包括回复）- 优化版
   const handleLikeComment = async (comment: Comment) => {
-    // 先保存旧状态用于回滚
-    const oldIsLiked = comment.is_liked;
-    const oldLikesCount = comment.likes_count;
+    const { id, is_liked, likes_count } = comment;
     
-    // 乐观更新本地状态 - 辅助函数用于更新评论或回复
-    const updateCommentLike = (c: Comment): Comment => {
-      // 如果是目标评论/回复
-      if (c.id === comment.id) {
-        return {
-          ...c,
-          is_liked: !c.is_liked,
-          likes_count: c.is_liked ? c.likes_count - 1 : c.likes_count + 1
-        };
+    // 乐观更新：切换点赞状态
+    const newIsLiked = !is_liked;
+    const newLikesCount = newIsLiked ? likes_count + 1 : Math.max(0, likes_count - 1);
+    
+    // 递归更新评论树中的点赞状态
+    const updateLikeInTree = (c: Comment): Comment => {
+      if (c.id === id) {
+        return { ...c, is_liked: newIsLiked, likes_count: newLikesCount };
       }
-      // 如果有回复，递归查找
-      if (c.replies && c.replies.length > 0) {
-        return {
-          ...c,
-          replies: c.replies.map(r => updateCommentLike(r))
-        };
+      if (c.replies?.length) {
+        return { ...c, replies: c.replies.map(r => updateLikeInTree(r)) };
       }
       return c;
     };
     
-    // 更新本地状态
-    setComments(prev => prev.map(c => updateCommentLike(c)));
+    setComments(prev => prev.map(c => updateLikeInTree(c)));
     
     try {
-      if (oldIsLiked) {
-        await commentService.unlikeComment(comment.id);
-      } else {
-        await commentService.likeComment(comment.id);
+      const success = newIsLiked 
+        ? await commentService.likeComment(id)
+        : await commentService.unlikeComment(id);
+      
+      if (!success) {
+        throw new Error('点赞操作失败');
       }
     } catch (error) {
       console.error('评论点赞操作失败:', error);
-      // 失败时回滚状态
-      const rollbackCommentLike = (c: Comment): Comment => {
-        if (c.id === comment.id) {
-          return {
-            ...c,
-            is_liked: oldIsLiked,
-            likes_count: oldLikesCount
-          };
+      // 回滚状态
+      const rollbackLikeInTree = (c: Comment): Comment => {
+        if (c.id === id) {
+          return { ...c, is_liked, likes_count };
         }
-        if (c.replies && c.replies.length > 0) {
-          return {
-            ...c,
-            replies: c.replies.map(r => rollbackCommentLike(r))
-          };
+        if (c.replies?.length) {
+          return { ...c, replies: c.replies.map(r => rollbackLikeInTree(r)) };
         }
         return c;
       };
-      setComments(prev => prev.map(c => rollbackCommentLike(c)));
+      setComments(prev => prev.map(c => rollbackLikeInTree(c)));
     }
   };
 
@@ -1373,7 +1360,7 @@ export const PostDetailScreen: React.FC = () => {
     return (
       <CommentItem
         comment={item}
-        onLike={() => handleLikeComment(item)}
+        onLike={handleLikeComment}
         onReply={() => handleReply(item)}
         onUserPress={() => authorId && handleUserPress(authorId)}
         floorNumber={index + 1}

src/screens/material/MaterialDetailScreen.tsx

@@ -0,0 +1,500 @@
+/**
+ * 资料详情页：展示资料详细信息
+ */
+import React, { useCallback, useEffect, useMemo, useState } from 'react';
+import {
+  View,
+  StyleSheet,
+  ScrollView,
+  TouchableOpacity,
+  StatusBar,
+  Alert,
+} from 'react-native';
+import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';
+import { useRouter, useLocalSearchParams } from 'expo-router';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+
+import {
+  spacing,
+  fontSizes,
+  borderRadius,
+  shadows,
+  useAppColors,
+  useResolvedColorScheme,
+  type AppColors,
+} from '../../theme';
+import { Text, ResponsiveContainer, Loading } from '../../components/common';
+import { useResponsive, useResponsiveSpacing, useBreakpointGTE } from '../../hooks/useResponsive';
+import type { MaterialFile } from '../../types/material';
+import { materialRepository } from '../../data/repositories/MaterialRepository';
+import {
+  MATERIAL_FILE_TYPE_ICONS,
+  MATERIAL_FILE_TYPE_COLORS,
+  MATERIAL_FILE_TYPE_NAMES,
+  formatFileSize,
+} from '../../types/material';
+
+export const MaterialDetailScreen: React.FC = () => {
+  const colors = useAppColors();
+  const resolvedScheme = useResolvedColorScheme();
+  const statusBarStyle = resolvedScheme === 'dark' ? 'light-content' : 'dark-content';
+  const styles = useMemo(() => createMaterialDetailStyles(colors), [colors]);
+  const router = useRouter();
+  const params = useLocalSearchParams<{ materialId: string }>();
+  const insets = useSafeAreaInsets();
+  const { isMobile } = useResponsive();
+  const isWideScreen = useBreakpointGTE('lg');
+  const responsivePadding = useResponsiveSpacing({ xs: 8, sm: 12, md: 16, lg: 24, xl: 32 });
+
+  const [material, setMaterial] = useState<MaterialFile | null>(null);
+  const [isLoading, setIsLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  const scrollBottomInset = isMobile ? 88 + insets.bottom + spacing.md : spacing['3xl'];
+
+  const loadMaterial = useCallback(async () => {
+    if (!params.materialId) {
+      setError('缺少资料ID');
+      setIsLoading(false);
+      return;
+    }
+
+    try {
+      setError(null);
+      const data = await materialRepository.getMaterialById(params.materialId);
+      setMaterial(data);
+    } catch (err) {
+      setError('加载资料详情失败');
+      console.error('Failed to load material:', err);
+    } finally {
+      setIsLoading(false);
+    }
+  }, [params.materialId]);
+
+  useEffect(() => {
+    loadMaterial();
+  }, [loadMaterial]);
+
+  const handleDownload = useCallback(() => {
+    if (!material) return;
+
+    Alert.alert(
+      '下载资料',
+      `确定要下载「${material.title}」吗？`,
+      [
+        { text: '取消', style: 'cancel' },
+        {
+          text: '下载',
+          onPress: () => {
+            // Mock下载逻辑
+            Alert.alert('提示', '下载功能开发中，请稍后再试');
+          },
+        },
+      ]
+    );
+  }, [material]);
+
+  const handlePreview = useCallback(() => {
+    if (!material?.file_url) return;
+
+    Alert.alert(
+      '在线预览',
+      '在线预览功能开发中，请稍后再试',
+      [{ text: '确定', style: 'default' }]
+    );
+  }, [material]);
+
+  const formatDate = useCallback((dateStr: string) => {
+    const date = new Date(dateStr);
+    return date.toLocaleDateString('zh-CN', {
+      year: 'numeric',
+      month: 'long',
+      day: 'numeric',
+    });
+  }, []);
+
+  const cardStyle = useMemo(
+    () => ({
+      backgroundColor: colors.background.paper,
+      borderRadius: 16,
+      overflow: 'hidden' as const,
+      shadowColor: '#000',
+      shadowOffset: { width: 0, height: 2 },
+      shadowOpacity: 0.06,
+      shadowRadius: 8,
+      elevation: 2,
+    }),
+    [colors]
+  );
+
+  const renderContent = () => {
+    if (isLoading) {
+      return (
+        <View style={styles.centerContainer}>
+          <Loading size="lg" />
+        </View>
+      );
+    }
+
+    if (error || !material) {
+      return (
+        <View style={styles.centerContainer}>
+          <MaterialCommunityIcons name="alert-circle-outline" size={48} color={colors.text.hint} />
+          <Text variant="body" color={colors.text.secondary} style={styles.errorText}>
+            {error || '资料不存在'}
+          </Text>
+          <TouchableOpacity onPress={() => router.back()} style={styles.retryButton}>
+            <Text variant="body" color={colors.primary.main}>
+              返回
+            </Text>
+          </TouchableOpacity>
+        </View>
+      );
+    }
+
+    const fileColor = MATERIAL_FILE_TYPE_COLORS[material.file_type];
+    const iconName = MATERIAL_FILE_TYPE_ICONS[material.file_type];
+    const fileTypeName = MATERIAL_FILE_TYPE_NAMES[material.file_type];
+
+    return (
+      <>
+        {/* 文件信息卡片 */}
+        <View style={[styles.fileCard, cardStyle]}>
+          <View style={[styles.fileTypeBanner, { backgroundColor: fileColor }]}>
+            <MaterialCommunityIcons name={iconName as any} size={48} color="#FFFFFF" />
+            <Text variant="body" style={styles.fileTypeName}>
+              {fileTypeName}
+            </Text>
+          </View>
+          <View style={styles.fileInfo}>
+            <Text variant="h3" style={styles.fileName}>
+              {material.title}
+            </Text>
+            {material.description && (
+              <Text variant="body" color={colors.text.secondary} style={styles.fileDescription}>
+                {material.description}
+              </Text>
+            )}
+            <View style={styles.fileMetaRow}>
+              <View style={styles.metaItem}>
+                <MaterialCommunityIcons name="file-outline" size={16} color={colors.text.hint} />
+                <Text variant="caption" color={colors.text.hint}>
+                  {formatFileSize(material.file_size)}
+                </Text>
+              </View>
+              <View style={styles.metaItem}>
+                <MaterialCommunityIcons name="download" size={16} color={colors.text.hint} />
+                <Text variant="caption" color={colors.text.hint}>
+                  {material.download_count} 次下载
+                </Text>
+              </View>
+            </View>
+          </View>
+        </View>
+
+        {/* 详细信息 */}
+        <View style={[styles.detailCard, cardStyle]}>
+          <Text variant="body" style={styles.sectionTitle}>
+            详细信息
+          </Text>
+          <View style={styles.detailRow}>
+            <Text variant="caption" color={colors.text.hint} style={styles.detailLabel}>
+              文件名
+            </Text>
+            <Text variant="body" color={colors.text.primary} style={styles.detailValue}>
+              {material.file_name}
+            </Text>
+          </View>
+          <View style={styles.detailRow}>
+            <Text variant="caption" color={colors.text.hint} style={styles.detailLabel}>
+              上传时间
+            </Text>
+            <Text variant="body" color={colors.text.primary} style={styles.detailValue}>
+              {formatDate(material.created_at)}
+            </Text>
+          </View>
+          {material.author_name && (
+            <View style={styles.detailRow}>
+              <Text variant="caption" color={colors.text.hint} style={styles.detailLabel}>
+                上传者
+              </Text>
+              <Text variant="body" color={colors.text.primary} style={styles.detailValue}>
+                {material.author_name}
+              </Text>
+            </View>
+          )}
+          {material.tags && material.tags.length > 0 && (
+            <View style={styles.tagContainer}>
+              <Text variant="caption" color={colors.text.hint} style={styles.detailLabel}>
+                标签
+              </Text>
+              <View style={styles.tags}>
+                {material.tags.map((tag, index) => (
+                  <View key={index} style={styles.tag}>
+                    <Text variant="caption" color={colors.primary.main}>
+                      {tag}
+                    </Text>
+                  </View>
+                ))}
+              </View>
+            </View>
+          )}
+        </View>
+
+        {/* 操作按钮 */}
+        <View style={styles.actionButtons}>
+          <TouchableOpacity
+            style={[styles.previewButton, { backgroundColor: colors.background.paper }]}
+            onPress={handlePreview}
+            activeOpacity={0.8}
+          >
+            <MaterialCommunityIcons name="eye-outline" size={20} color={colors.text.primary} />
+            <Text variant="body" color={colors.text.primary} style={styles.actionButtonText}>
+              在线预览
+            </Text>
+          </TouchableOpacity>
+          <TouchableOpacity
+            style={[styles.downloadButton, { backgroundColor: colors.primary.main }]}
+            onPress={handleDownload}
+            activeOpacity={0.8}
+          >
+            <MaterialCommunityIcons name="download" size={20} color={colors.primary.contrast} />
+            <Text variant="body" color={colors.primary.contrast} style={styles.actionButtonText}>
+              下载资料
+            </Text>
+          </TouchableOpacity>
+        </View>
+      </>
+    );
+  };
+
+  return (
+    <SafeAreaView style={styles.container} edges={['top', 'bottom']}>
+      <StatusBar barStyle={statusBarStyle} backgroundColor={colors.background.default} />
+
+      {/* Header */}
+      <View style={[styles.header, isWideScreen && styles.headerWide]}>
+        <View style={styles.headerLeft}>
+          <TouchableOpacity onPress={() => router.back()} style={styles.backButton}>
+            <MaterialCommunityIcons name="arrow-left" size={24} color={colors.text.primary} />
+          </TouchableOpacity>
+        </View>
+        <View style={styles.headerCenter}>
+          <Text style={isWideScreen ? [styles.headerTitle, styles.headerTitleWide] : styles.headerTitle}>
+            资料详情
+          </Text>
+        </View>
+        <View style={styles.headerRight}>
+          <TouchableOpacity style={styles.shareButton}>
+            <MaterialCommunityIcons name="share-variant" size={22} color={colors.text.primary} />
+          </TouchableOpacity>
+        </View>
+      </View>
+
+      {/* Content */}
+      {isWideScreen ? (
+        <ResponsiveContainer maxWidth={800}>
+          <ScrollView
+            style={styles.scroll}
+            contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}
+            showsVerticalScrollIndicator={false}
+          >
+            {renderContent()}
+          </ScrollView>
+        </ResponsiveContainer>
+      ) : (
+        <ScrollView
+          style={styles.scroll}
+          contentContainerStyle={[
+            styles.scrollContent,
+            { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding },
+          ]}
+          showsVerticalScrollIndicator={false}
+        >
+          {renderContent()}
+        </ScrollView>
+      )}
+    </SafeAreaView>
+  );
+};
+
+export default MaterialDetailScreen;
+
+function createMaterialDetailStyles(colors: AppColors) {
+  const headerBg = colors.background.default;
+  return StyleSheet.create({
+    container: {
+      flex: 1,
+      backgroundColor: colors.background.default,
+    },
+    header: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'space-between',
+      paddingHorizontal: spacing.md,
+      paddingVertical: spacing.md,
+      backgroundColor: headerBg,
+      ...shadows.sm,
+    },
+    headerWide: {
+      paddingHorizontal: spacing.lg,
+      paddingVertical: spacing.lg,
+    },
+    headerLeft: {
+      width: 44,
+      alignItems: 'flex-start',
+    },
+    backButton: {
+      padding: spacing.xs,
+    },
+    headerCenter: {
+      flexDirection: 'row',
+      alignItems: 'center',
+    },
+    headerTitle: {
+      fontSize: 19,
+      fontWeight: '700',
+      color: colors.text.primary,
+    },
+    headerTitleWide: {
+      fontSize: 22,
+    },
+    headerRight: {
+      width: 44,
+      alignItems: 'flex-end',
+    },
+    shareButton: {
+      padding: spacing.xs,
+    },
+    scroll: {
+      flex: 1,
+      backgroundColor: headerBg,
+    },
+    scrollContent: {
+      paddingTop: spacing.md,
+      flexGrow: 1,
+      backgroundColor: headerBg,
+    },
+    centerContainer: {
+      flex: 1,
+      justifyContent: 'center',
+      alignItems: 'center',
+      paddingVertical: spacing['3xl'],
+    },
+    errorText: {
+      marginTop: spacing.md,
+      textAlign: 'center',
+    },
+    retryButton: {
+      marginTop: spacing.md,
+      paddingVertical: spacing.sm,
+      paddingHorizontal: spacing.lg,
+    },
+    fileCard: {
+      marginBottom: spacing.md,
+    },
+    fileTypeBanner: {
+      height: 100,
+      alignItems: 'center',
+      justifyContent: 'center',
+    },
+    fileTypeName: {
+      color: '#FFFFFF',
+      fontWeight: '700',
+      fontSize: fontSizes.lg,
+      marginTop: spacing.sm,
+    },
+    fileInfo: {
+      padding: spacing.lg,
+    },
+    fileName: {
+      color: colors.text.primary,
+      fontWeight: '700',
+      fontSize: fontSizes.lg,
+    },
+    fileDescription: {
+      marginTop: spacing.sm,
+      lineHeight: fontSizes.md * 1.5,
+    },
+    fileMetaRow: {
+      flexDirection: 'row',
+      marginTop: spacing.md,
+      gap: spacing.md,
+    },
+    metaItem: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      gap: spacing.xs,
+    },
+    detailCard: {
+      padding: spacing.lg,
+      marginBottom: spacing.md,
+    },
+    sectionTitle: {
+      fontWeight: '700',
+      fontSize: fontSizes.md,
+      color: colors.text.primary,
+      marginBottom: spacing.md,
+    },
+    detailRow: {
+      flexDirection: 'row',
+      justifyContent: 'space-between',
+      alignItems: 'center',
+      paddingVertical: spacing.sm,
+      borderBottomWidth: 1,
+      borderBottomColor: colors.divider,
+    },
+    detailLabel: {
+      width: 80,
+    },
+    detailValue: {
+      flex: 1,
+      textAlign: 'right',
+    },
+    tagContainer: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      marginTop: spacing.sm,
+    },
+    tags: {
+      flexDirection: 'row',
+      flexWrap: 'wrap',
+      gap: spacing.xs,
+      flex: 1,
+    },
+    tag: {
+      paddingVertical: spacing.xs,
+      paddingHorizontal: spacing.sm,
+      backgroundColor: colors.background.paper,
+      borderRadius: borderRadius.sm,
+      borderWidth: 1,
+      borderColor: colors.primary.main,
+    },
+    actionButtons: {
+      flexDirection: 'row',
+      gap: spacing.md,
+      marginTop: spacing.lg,
+    },
+    previewButton: {
+      flex: 1,
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'center',
+      paddingVertical: spacing.md,
+      borderRadius: borderRadius.lg,
+      gap: spacing.xs,
+    },
+    downloadButton: {
+      flex: 1,
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'center',
+      paddingVertical: spacing.md,
+      borderRadius: borderRadius.lg,
+      gap: spacing.xs,
+    },
+    actionButtonText: {
+      fontWeight: '600',
+    },
+  });
+}

src/screens/material/MaterialsScreen.tsx

@@ -0,0 +1,318 @@
+/**
+ * 学习资料主页：学科分类网格
+ */
+import React, { useCallback, useEffect, useMemo, useState } from 'react';
+import {
+  View,
+  StyleSheet,
+  ScrollView,
+  TouchableOpacity,
+  StatusBar,
+  RefreshControl,
+} from 'react-native';
+import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';
+import { useRouter } from 'expo-router';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+
+import {
+  spacing,
+  fontSizes,
+  borderRadius,
+  shadows,
+  useAppColors,
+  useResolvedColorScheme,
+  type AppColors,
+} from '../../theme';
+import * as hrefs from '../../navigation/hrefs';
+import { Text, Loading } from '../../components/common';
+import { useResponsive, useResponsiveSpacing, useBreakpointGTE } from '../../hooks/useResponsive';
+
+// 学科卡片最大宽度设置
+const SUBJECT_CARD_MAX_WIDTH = 720;
+import type { MaterialSubject } from '../../types/material';
+import { materialRepository } from '../../data/repositories/MaterialRepository';
+
+export const MaterialsScreen: React.FC = () => {
+  const colors = useAppColors();
+  const resolvedScheme = useResolvedColorScheme();
+  const statusBarStyle = resolvedScheme === 'dark' ? 'light-content' : 'dark-content';
+  const styles = useMemo(() => createMaterialsStyles(colors), [colors]);
+  const router = useRouter();
+  const insets = useSafeAreaInsets();
+  const { isMobile } = useResponsive();
+  const isWideScreen = useBreakpointGTE('lg');
+  const responsivePadding = useResponsiveSpacing({ xs: 8, sm: 12, md: 16, lg: 24, xl: 32 });
+
+  const [subjects, setSubjects] = useState<MaterialSubject[]>([]);
+  const [isLoading, setIsLoading] = useState(true);
+  const [isRefreshing, setIsRefreshing] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const scrollBottomInset = isMobile ? 88 + insets.bottom + spacing.md : spacing['3xl'];
+
+  const loadSubjects = useCallback(async () => {
+    try {
+      setError(null);
+      const data = await materialRepository.getSubjects();
+      setSubjects(data);
+    } catch (err) {
+      setError('加载学科列表失败');
+      console.error('Failed to load subjects:', err);
+    } finally {
+      setIsLoading(false);
+      setIsRefreshing(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    loadSubjects();
+  }, [loadSubjects]);
+
+  const handleRefresh = useCallback(() => {
+    setIsRefreshing(true);
+    loadSubjects();
+  }, [loadSubjects]);
+
+  const onOpenSubject = useCallback(
+    (subjectId: string) => {
+      router.push(hrefs.hrefMaterialSubject(subjectId));
+    },
+    [router]
+  );
+
+  const cardStyle = useMemo(
+    () => ({
+      backgroundColor: colors.background.paper,
+      borderRadius: 16,
+      overflow: 'hidden' as const,
+      shadowColor: '#000',
+      shadowOffset: { width: 0, height: 2 },
+      shadowOpacity: 0.06,
+      shadowRadius: 8,
+      elevation: 2,
+      maxWidth: SUBJECT_CARD_MAX_WIDTH,
+      alignSelf: 'center' as const,
+      width: '100%' as const,
+    }),
+    [colors]
+  );
+
+  const renderSubjectCard = (subject: MaterialSubject) => (
+    <TouchableOpacity
+      key={subject.id}
+      style={[styles.subjectCard, cardStyle]}
+      onPress={() => onOpenSubject(subject.id)}
+      activeOpacity={0.85}
+    >
+      <View style={[styles.subjectIconCircle, { backgroundColor: subject.color }]}>
+        <MaterialCommunityIcons name={subject.icon as any} size={28} color="#FFFFFF" />
+      </View>
+      <View style={styles.subjectContent}>
+        <Text variant="body" style={styles.subjectName}>
+          {subject.name}
+        </Text>
+        <Text variant="caption" color={colors.text.secondary} style={styles.subjectDesc}>
+          {subject.description || `${subject.material_count} 份资料`}
+        </Text>
+      </View>
+      <View style={styles.subjectMeta}>
+        <Text variant="caption" color={colors.text.hint}>
+          {subject.material_count}
+        </Text>
+        <MaterialCommunityIcons name="chevron-right" size={20} color={colors.text.hint} />
+      </View>
+    </TouchableOpacity>
+  );
+
+  const renderContent = () => {
+    if (isLoading) {
+      return (
+        <View style={styles.centerContainer}>
+          <Loading size="lg" />
+        </View>
+      );
+    }
+
+    if (error) {
+      return (
+        <View style={styles.centerContainer}>
+          <MaterialCommunityIcons name="alert-circle-outline" size={48} color={colors.text.hint} />
+          <Text variant="body" color={colors.text.secondary} style={styles.errorText}>
+            {error}
+          </Text>
+          <TouchableOpacity onPress={loadSubjects} style={styles.retryButton}>
+            <Text variant="body" color={colors.primary.main}>
+              重试
+            </Text>
+          </TouchableOpacity>
+        </View>
+      );
+    }
+
+    return (
+      <>
+        <Text variant="caption" color={colors.text.secondary} style={styles.pageSubtitle}>
+          按学科分类浏览学习资料
+        </Text>
+        <View style={styles.subjectsGrid}>{subjects.map(renderSubjectCard)}</View>
+      </>
+    );
+  };
+
+  return (
+    <SafeAreaView style={styles.container} edges={['top', 'bottom']}>
+      <StatusBar barStyle={statusBarStyle} backgroundColor={colors.background.default} />
+
+      {/* Header */}
+      <View style={[styles.header, isWideScreen && styles.headerWide]}>
+        <View style={styles.headerLeft}>
+          <TouchableOpacity onPress={() => router.back()} style={styles.backButton}>
+            <MaterialCommunityIcons name="arrow-left" size={24} color={colors.text.primary} />
+          </TouchableOpacity>
+        </View>
+        <View style={styles.headerCenter}>
+          <Text style={isWideScreen ? [styles.headerTitle, styles.headerTitleWide] : styles.headerTitle}>
+            学习资料
+          </Text>
+        </View>
+        <View style={styles.headerRight}>
+          <TouchableOpacity style={styles.searchButton}>
+            <MaterialCommunityIcons name="magnify" size={24} color={colors.text.primary} />
+          </TouchableOpacity>
+        </View>
+      </View>
+
+      {/* Content */}
+      <ScrollView
+        style={styles.scroll}
+        contentContainerStyle={[
+          styles.scrollContent,
+          { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding },
+        ]}
+        showsVerticalScrollIndicator={false}
+        refreshControl={
+          <RefreshControl
+            refreshing={isRefreshing}
+            onRefresh={handleRefresh}
+            tintColor={colors.primary.main}
+          />
+        }
+      >
+        {renderContent()}
+      </ScrollView>
+    </SafeAreaView>
+  );
+};
+
+export default MaterialsScreen;
+
+function createMaterialsStyles(colors: AppColors) {
+  const headerBg = colors.background.default;
+  return StyleSheet.create({
+    container: {
+      flex: 1,
+      backgroundColor: colors.background.default,
+    },
+    header: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'space-between',
+      paddingHorizontal: spacing.md,
+      paddingVertical: spacing.md,
+      backgroundColor: headerBg,
+      ...shadows.sm,
+    },
+    headerWide: {
+      paddingHorizontal: spacing.lg,
+      paddingVertical: spacing.lg,
+    },
+    headerLeft: {
+      width: 44,
+      alignItems: 'flex-start',
+    },
+    backButton: {
+      padding: spacing.xs,
+    },
+    headerCenter: {
+      flexDirection: 'row',
+      alignItems: 'center',
+    },
+    headerTitle: {
+      fontSize: 19,
+      fontWeight: '700',
+      color: colors.text.primary,
+    },
+    headerTitleWide: {
+      fontSize: 22,
+    },
+    headerRight: {
+      width: 44,
+      alignItems: 'flex-end',
+    },
+    searchButton: {
+      padding: spacing.xs,
+    },
+    scroll: {
+      flex: 1,
+      backgroundColor: headerBg,
+    },
+    scrollContent: {
+      paddingTop: spacing.md,
+      flexGrow: 1,
+      backgroundColor: headerBg,
+    },
+    pageSubtitle: {
+      marginBottom: spacing.lg,
+      lineHeight: fontSizes.sm * 1.45,
+    },
+    subjectsGrid: {
+      gap: spacing.md,
+    },
+    subjectCard: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      paddingVertical: spacing.lg,
+      paddingHorizontal: spacing.lg,
+    },
+    subjectIconCircle: {
+      width: 56,
+      height: 56,
+      borderRadius: borderRadius.full,
+      alignItems: 'center',
+      justifyContent: 'center',
+    },
+    subjectContent: {
+      flex: 1,
+      marginLeft: spacing.md,
+      marginRight: spacing.sm,
+    },
+    subjectName: {
+      fontWeight: '700',
+      fontSize: fontSizes.md + 1,
+      color: colors.text.primary,
+    },
+    subjectDesc: {
+      marginTop: 4,
+    },
+    subjectMeta: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      gap: spacing.xs,
+    },
+    centerContainer: {
+      flex: 1,
+      justifyContent: 'center',
+      alignItems: 'center',
+      paddingVertical: spacing['3xl'],
+    },
+    errorText: {
+      marginTop: spacing.md,
+      textAlign: 'center',
+    },
+    retryButton: {
+      marginTop: spacing.md,
+      paddingVertical: spacing.sm,
+      paddingHorizontal: spacing.lg,
+    },
+  });
+}

src/screens/material/SubjectMaterialsScreen.tsx

@@ -0,0 +1,402 @@
+/**
+ * 学科资料列表页：展示某个学科下的所有资料
+ */
+import React, { useCallback, useEffect, useMemo, useState } from 'react';
+import {
+  View,
+  StyleSheet,
+  ScrollView,
+  TouchableOpacity,
+  StatusBar,
+  RefreshControl,
+  FlatList,
+} from 'react-native';
+import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';
+import { useRouter, useLocalSearchParams } from 'expo-router';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+
+import {
+  spacing,
+  fontSizes,
+  borderRadius,
+  shadows,
+  useAppColors,
+  useResolvedColorScheme,
+  type AppColors,
+} from '../../theme';
+import * as hrefs from '../../navigation/hrefs';
+import { Text, Loading } from '../../components/common';
+import { useResponsive, useResponsiveSpacing, useBreakpointGTE } from '../../hooks/useResponsive';
+
+// 资料卡片最大宽度
+const MATERIAL_CARD_MAX_WIDTH = 720;
+import type { MaterialSubject, MaterialFile, MaterialFileType } from '../../types/material';
+import {
+  materialRepository,
+} from '../../data/repositories/MaterialRepository';
+import {
+  MATERIAL_FILE_TYPE_ICONS,
+  MATERIAL_FILE_TYPE_COLORS,
+  formatFileSize,
+} from '../../types/material';
+
+export const SubjectMaterialsScreen: React.FC = () => {
+  const colors = useAppColors();
+  const resolvedScheme = useResolvedColorScheme();
+  const statusBarStyle = resolvedScheme === 'dark' ? 'light-content' : 'dark-content';
+  const styles = useMemo(() => createSubjectMaterialsStyles(colors), [colors]);
+  const router = useRouter();
+  const params = useLocalSearchParams<{ subjectId: string }>();
+  const insets = useSafeAreaInsets();
+  const { isMobile } = useResponsive();
+  const isWideScreen = useBreakpointGTE('lg');
+  const responsivePadding = useResponsiveSpacing({ xs: 8, sm: 12, md: 16, lg: 24, xl: 32 });
+
+  const [subject, setSubject] = useState<MaterialSubject | null>(null);
+  const [materials, setMaterials] = useState<MaterialFile[]>([]);
+  const [isLoading, setIsLoading] = useState(true);
+  const [isRefreshing, setIsRefreshing] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [selectedFileType, setSelectedFileType] = useState<MaterialFileType | null>(null);
+
+  const scrollBottomInset = isMobile ? 88 + insets.bottom + spacing.md : spacing['3xl'];
+
+  const loadData = useCallback(async () => {
+    if (!params.subjectId) {
+      setError('缺少学科ID');
+      setIsLoading(false);
+      return;
+    }
+
+    try {
+      setError(null);
+      const [subjectData, materialsData] = await Promise.all([
+        materialRepository.getSubjectById(params.subjectId),
+        materialRepository.getMaterials({ subjectId: params.subjectId }),
+      ]);
+      setSubject(subjectData);
+      setMaterials(materialsData.materials);
+    } catch (err) {
+      setError('加载资料列表失败');
+      console.error('Failed to load materials:', err);
+    } finally {
+      setIsLoading(false);
+      setIsRefreshing(false);
+    }
+  }, [params.subjectId]);
+
+  useEffect(() => {
+    loadData();
+  }, [loadData]);
+
+  const handleRefresh = useCallback(() => {
+    setIsRefreshing(true);
+    loadData();
+  }, [loadData]);
+
+  const onOpenMaterial = useCallback(
+    (materialId: string) => {
+      router.push(hrefs.hrefMaterialDetail(materialId));
+    },
+    [router]
+  );
+
+  const filteredMaterials = useMemo(() => {
+    if (!selectedFileType) return materials;
+    return materials.filter((m) => m.file_type === selectedFileType);
+  }, [materials, selectedFileType]);
+
+  const fileTypes: { type: MaterialFileType | null; label: string }[] = [
+    { type: null, label: '全部' },
+    { type: 'pdf', label: 'PDF' },
+    { type: 'word', label: 'Word' },
+    { type: 'ppt', label: 'PPT' },
+  ];
+
+  const cardStyle = useMemo(
+    () => ({
+      backgroundColor: colors.background.paper,
+      borderRadius: 12,
+      overflow: 'hidden' as const,
+      shadowColor: '#000',
+      shadowOffset: { width: 0, height: 1 },
+      shadowOpacity: 0.05,
+      shadowRadius: 4,
+      elevation: 1,
+      maxWidth: MATERIAL_CARD_MAX_WIDTH,
+      alignSelf: 'center' as const,
+      width: '100%' as const,
+    }),
+    [colors]
+  );
+
+  const renderMaterialItem = ({ item }: { item: MaterialFile }) => {
+    const fileColor = MATERIAL_FILE_TYPE_COLORS[item.file_type];
+    const iconName = MATERIAL_FILE_TYPE_ICONS[item.file_type];
+
+    return (
+      <TouchableOpacity
+        style={[styles.materialCard, cardStyle]}
+        onPress={() => onOpenMaterial(item.id)}
+        activeOpacity={0.85}
+      >
+        <View style={[styles.fileTypeIcon, { backgroundColor: fileColor }]}>
+          <MaterialCommunityIcons name={iconName as any} size={24} color="#FFFFFF" />
+        </View>
+        <View style={styles.materialContent}>
+          <Text variant="body" style={styles.materialTitle} numberOfLines={2}>
+            {item.title}
+          </Text>
+          <View style={styles.materialMeta}>
+            <Text variant="caption" color={colors.text.hint}>
+              {formatFileSize(item.file_size)}
+            </Text>
+            <Text variant="caption" color={colors.text.hint}>
+              {' · '}
+            </Text>
+            <Text variant="caption" color={colors.text.hint}>
+              {item.download_count} 次下载
+            </Text>
+          </View>
+          {item.description && (
+            <Text variant="caption" color={colors.text.secondary} numberOfLines={1}>
+              {item.description}
+            </Text>
+          )}
+        </View>
+        <MaterialCommunityIcons name="chevron-right" size={20} color={colors.text.hint} />
+      </TouchableOpacity>
+    );
+  };
+
+  const renderFilterTabs = () => (
+    <View style={styles.filterContainer}>
+      {fileTypes.map(({ type, label }) => (
+        <TouchableOpacity
+          key={label}
+          style={[
+            styles.filterTab,
+            selectedFileType === type && styles.filterTabActive,
+            selectedFileType === type && { backgroundColor: colors.primary.main },
+          ]}
+          onPress={() => setSelectedFileType(type)}
+          activeOpacity={0.7}
+        >
+          <Text
+            variant="caption"
+            color={selectedFileType === type ? colors.primary.contrast : colors.text.secondary}
+            style={styles.filterTabText}
+          >
+            {label}
+          </Text>
+        </TouchableOpacity>
+      ))}
+    </View>
+  );
+
+  const renderEmptyComponent = () => (
+    <View style={styles.centerContainer}>
+      <MaterialCommunityIcons name="file-document-outline" size={64} color={colors.text.hint} />
+      <Text variant="body" color={colors.text.secondary} style={styles.emptyText}>
+        {selectedFileType ? '该类型暂无资料' : '暂无资料'}
+      </Text>
+    </View>
+  );
+
+  const renderContent = () => {
+    if (isLoading) {
+      return (
+        <View style={styles.centerContainer}>
+          <Loading size="lg" />
+        </View>
+      );
+    }
+
+    if (error) {
+      return (
+        <View style={styles.centerContainer}>
+          <MaterialCommunityIcons name="alert-circle-outline" size={48} color={colors.text.hint} />
+          <Text variant="body" color={colors.text.secondary} style={styles.errorText}>
+            {error}
+          </Text>
+          <TouchableOpacity onPress={loadData} style={styles.retryButton}>
+            <Text variant="body" color={colors.primary.main}>
+              重试
+            </Text>
+          </TouchableOpacity>
+        </View>
+      );
+    }
+
+    return (
+      <FlatList
+        data={filteredMaterials}
+        keyExtractor={(item) => item.id}
+        renderItem={renderMaterialItem}
+        ListHeaderComponent={renderFilterTabs}
+        ListEmptyComponent={renderEmptyComponent}
+        contentContainerStyle={styles.listContent}
+        showsVerticalScrollIndicator={false}
+        refreshControl={
+          <RefreshControl
+            refreshing={isRefreshing}
+            onRefresh={handleRefresh}
+            tintColor={colors.primary.main}
+          />
+        }
+      />
+    );
+  };
+
+  return (
+    <SafeAreaView style={styles.container} edges={['top', 'bottom']}>
+      <StatusBar barStyle={statusBarStyle} backgroundColor={colors.background.default} />
+
+      {/* Header */}
+      <View style={[styles.header, isWideScreen && styles.headerWide]}>
+        <View style={styles.headerLeft}>
+          <TouchableOpacity onPress={() => router.back()} style={styles.backButton}>
+            <MaterialCommunityIcons name="arrow-left" size={24} color={colors.text.primary} />
+          </TouchableOpacity>
+        </View>
+        <View style={styles.headerCenter}>
+          <Text style={isWideScreen ? [styles.headerTitle, styles.headerTitleWide] : styles.headerTitle}>
+            {subject?.name || '资料列表'}
+          </Text>
+        </View>
+        <View style={styles.headerRight}>
+          <TouchableOpacity style={styles.searchButton}>
+            <MaterialCommunityIcons name="magnify" size={24} color={colors.text.primary} />
+          </TouchableOpacity>
+        </View>
+      </View>
+
+      {/* Content */}
+      <View style={[styles.contentWrapper, { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding }]}>
+        {renderContent()}
+      </View>
+    </SafeAreaView>
+  );
+};
+
+export default SubjectMaterialsScreen;
+
+function createSubjectMaterialsStyles(colors: AppColors) {
+  const headerBg = colors.background.default;
+  return StyleSheet.create({
+    container: {
+      flex: 1,
+      backgroundColor: colors.background.default,
+    },
+    header: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      justifyContent: 'space-between',
+      paddingHorizontal: spacing.md,
+      paddingVertical: spacing.md,
+      backgroundColor: headerBg,
+      ...shadows.sm,
+    },
+    headerWide: {
+      paddingHorizontal: spacing.lg,
+      paddingVertical: spacing.lg,
+    },
+    headerLeft: {
+      width: 44,
+      alignItems: 'flex-start',
+    },
+    backButton: {
+      padding: spacing.xs,
+    },
+    headerCenter: {
+      flexDirection: 'row',
+      alignItems: 'center',
+    },
+    headerTitle: {
+      fontSize: 19,
+      fontWeight: '700',
+      color: colors.text.primary,
+    },
+    headerTitleWide: {
+      fontSize: 22,
+    },
+    headerRight: {
+      width: 44,
+      alignItems: 'flex-end',
+    },
+    searchButton: {
+      padding: spacing.xs,
+    },
+    contentWrapper: {
+      flex: 1,
+    },
+    listContent: {
+      paddingTop: spacing.md,
+    },
+    filterContainer: {
+      flexDirection: 'row',
+      gap: spacing.sm,
+      marginBottom: spacing.md,
+    },
+    filterTab: {
+      paddingVertical: spacing.sm,
+      paddingHorizontal: spacing.md,
+      borderRadius: borderRadius.full,
+      backgroundColor: colors.background.paper,
+    },
+    filterTabActive: {
+      // backgroundColor set inline
+    },
+    filterTabText: {
+      fontWeight: '600',
+    },
+    materialCard: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      paddingVertical: spacing.md,
+      paddingHorizontal: spacing.md,
+      marginBottom: spacing.sm,
+    },
+    fileTypeIcon: {
+      width: 44,
+      height: 44,
+      borderRadius: borderRadius.md,
+      alignItems: 'center',
+      justifyContent: 'center',
+    },
+    materialContent: {
+      flex: 1,
+      marginLeft: spacing.md,
+      marginRight: spacing.sm,
+    },
+    materialTitle: {
+      fontWeight: '600',
+      fontSize: fontSizes.md,
+      color: colors.text.primary,
+    },
+    materialMeta: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      marginTop: 4,
+    },
+    centerContainer: {
+      flex: 1,
+      justifyContent: 'center',
+      alignItems: 'center',
+      paddingVertical: spacing['3xl'],
+    },
+    errorText: {
+      marginTop: spacing.md,
+      textAlign: 'center',
+    },
+    emptyText: {
+      marginTop: spacing.md,
+      textAlign: 'center',
+    },
+    retryButton: {
+      marginTop: spacing.md,
+      paddingVertical: spacing.sm,
+      paddingHorizontal: spacing.lg,
+    },
+  });
+}

src/screens/material/index.ts

@@ -0,0 +1,6 @@
+/**
+ * 学习资料屏幕导出
+ */
+export { MaterialsScreen } from './MaterialsScreen';
+export { SubjectMaterialsScreen } from './SubjectMaterialsScreen';
+export { MaterialDetailScreen } from './MaterialDetailScreen';

src/screens/message/ChatScreen.tsx

@@ -35,7 +35,7 @@ import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context'
 import { Text, ImageGallery, ImageGridItem } from '../../components/common';
 import { useAppColors } from '../../theme';
 import * as hrefs from '../../navigation/hrefs';
-import { messageManager } from '../../stores';
+import { messageManager, callStore } from '../../stores';
 import { useBreakpointGTE } from '../../hooks/useResponsive';
 import {
   useChatScreen,

src/screens/message/components/ChatScreen/EmojiPanel.tsx

@@ -5,7 +5,7 @@
  */
 
 import React, { useState, useEffect, useCallback, useMemo } from 'react';
-import { View, TouchableOpacity, ActivityIndicator, Modal, Alert, Dimensions, StyleSheet, FlatList, ListRenderItem } from 'react-native';
+import { View, TouchableOpacity, ActivityIndicator, Modal, Alert, Dimensions, StyleSheet, FlatList, ListRenderItem, ScrollView } from 'react-native';
 import { Image as ExpoImage } from 'expo-image';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
 import * as ImagePicker from 'expo-image-picker';
@@ -18,11 +18,11 @@ import { useAppColors, spacing } from '../../../../theme';
 
 const { height: SCREEN_HEIGHT } = Dimensions.get('window');
 
-// 表情尺寸配置
+  // 表情尺寸配置 - 固定宽度 40px，使用 flex 布局
 const EMOJI_SIZES = {
-  mobile: { size: 28, itemHeight: 52 },
-  tablet: { size: 32, itemHeight: 60 },
-  desktop: { size: 36, itemHeight: 68 },
+  mobile: { size: 24, itemWidth: 40, itemHeight: 40 },
+  tablet: { size: 26, itemWidth: 40, itemHeight: 40 },
+  desktop: { size: 28, itemWidth: 40, itemHeight: 40 },
 };
 
 // Tab 类型
@@ -62,29 +62,30 @@ export const EmojiPanel: React.FC<EmojiPanelProps> = ({
     return EMOJI_SIZES.mobile;
   }, [isWideScreen, isTablet]);
 
-  // 表情网格列数
-  const emojiColumns = useMemo(() => {
-    if (isWideScreen) return 10;
-    if (isTablet) return 9;
-    return 8;
-  }, [isWideScreen, isTablet]);
+
   
-  // 合并样式
+  // 合并样式 - 使用 flex 布局，每个表情固定 40px 宽度
   const styles = useMemo(() => {
     return StyleSheet.create({
       ...baseStyles,
+      emojiContainer: {
+        flexDirection: 'row',
+        flexWrap: 'wrap',
+        padding: spacing.sm,
+      },
       emojiItem: {
-        ...baseStyles.emojiItem,
-        width: `${100 / emojiColumns}%`,
-        height: emojiSize.itemHeight,
+        width: 40,
+        height: 40,
+        margin: 10,
+        alignItems: 'center',
+        justifyContent: 'center',
       },
       emojiText: {
-        ...baseStyles.emojiText,
         fontSize: emojiSize.size,
-        lineHeight: emojiSize.size + 6,
+        lineHeight: emojiSize.size + 4,
       },
     });
-  }, [emojiSize, emojiColumns, baseStyles]);
+  }, [emojiSize, baseStyles]);
 
   // 加载自定义表情
   const loadStickers = useCallback(async () => {
@@ -106,37 +107,26 @@ export const EmojiPanel: React.FC<EmojiPanelProps> = ({
     }
   }, [activeTab, loadStickers]);
 
-  const renderEmojiItem: ListRenderItem<string> = useCallback(({ item }) => (
-    <TouchableOpacity
-      style={styles.emojiItem}
-      onPress={() => onInsertEmoji(item)}
-      activeOpacity={0.7}
-    >
-      <Text style={styles.emojiText}>{item}</Text>
-    </TouchableOpacity>
-  ), [styles.emojiItem, styles.emojiText, onInsertEmoji]);
 
-  // 渲染 Emoji 面板（使用 FlatList 虚拟化，降低首次打开卡顿）
+
+  // 渲染 Emoji 面板（使用 flex 布局，每个表情固定 40px 宽度）
   const renderEmojiPanel = () => (
-    <FlatList
-      data={EMOJIS}
-      key={emojiColumns}
-      numColumns={emojiColumns}
-      keyExtractor={(item, index) => `${item}-${index}`}
-      renderItem={renderEmojiItem}
-      contentContainerStyle={styles.emojiGrid}
-      showsVerticalScrollIndicator={false}
+    <ScrollView
+      contentContainerStyle={styles.emojiContainer}
+      showsVerticalScrollIndicator={true}
       keyboardShouldPersistTaps="handled"
-      initialNumToRender={emojiColumns * 4}
-      maxToRenderPerBatch={emojiColumns * 4}
-      windowSize={7}
-      removeClippedSubviews={true}
-      getItemLayout={(_, index) => ({
-        length: emojiSize.itemHeight,
-        offset: emojiSize.itemHeight * Math.floor(index / emojiColumns),
-        index,
-      })}
-    />
+    >
+      {EMOJIS.map((emoji, index) => (
+        <TouchableOpacity
+          key={`${emoji}-${index}`}
+          style={styles.emojiItem}
+          onPress={() => onInsertEmoji(emoji)}
+          activeOpacity={0.7}
+        >
+          <Text style={styles.emojiText}>{emoji}</Text>
+        </TouchableOpacity>
+      ))}
+    </ScrollView>
   );
 
   // 添加表情（从相册选择）

src/screens/message/components/ChatScreen/GroupInfoPanel.web.tsx

@@ -0,0 +1,602 @@
+/**
+ * GroupInfoPanel.web.tsx
+ * Web端群信息侧边栏组件
+ * 大屏幕模式下从右侧滑入显示
+ * 实现手机端群信息界面的核心功能
+ */
+
+import React, { useEffect, useState, useCallback, useMemo } from 'react';
+import {
+  View,
+  StyleSheet,
+  TouchableOpacity,
+  ScrollView,
+  Dimensions,
+  Animated,
+  Alert,
+} from 'react-native';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { Avatar, Text } from '../../../../components/common';
+import { useAppColors, spacing, fontSizes, shadows, type AppColors } from '../../../../theme';
+import { GroupMemberResponse, GroupResponse, GroupAnnouncementResponse } from '../../../../types/dto';
+import { useBreakpointGTE } from '../../../../hooks/useResponsive';
+import { groupManager } from '../../../../stores/groupManager';
+import { groupService } from '../../../../services/groupService';
+
+const { width: screenWidth } = Dimensions.get('window');
+const PANEL_WIDTH = 360;
+
+interface GroupInfoPanelProps {
+  visible: boolean;
+  groupId?: string;
+  groupInfo: GroupResponse | null;
+  conversationId?: string;
+  isPinned?: boolean;
+  currentUserId?: string;
+  onClose: () => void;
+  onTogglePin?: (pinned: boolean) => void;
+  onLeaveGroup?: () => void;
+  onInviteMembers?: () => void;
+  onViewAllMembers?: () => void;
+}
+
+export const GroupInfoPanel: React.FC<GroupInfoPanelProps> = ({
+  visible,
+  groupId,
+  groupInfo,
+  conversationId,
+  isPinned,
+  currentUserId,
+  onClose,
+  onTogglePin,
+  onLeaveGroup,
+  onInviteMembers,
+  onViewAllMembers,
+}) => {
+  const colors = useAppColors();
+  const styles = useMemo(() => createGroupInfoPanelStyles(colors), [colors]);
+  const isWideScreen = useBreakpointGTE('lg');
+  // Web 端不使用 useNativeDriver
+  const slideAnim = React.useRef(new Animated.Value(PANEL_WIDTH)).current;
+  const fadeAnim = React.useRef(new Animated.Value(0)).current;
+  const [members, setMembers] = useState<GroupMemberResponse[]>([]);
+  const [announcements, setAnnouncements] = useState<GroupAnnouncementResponse[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [showAllMembers, setShowAllMembers] = useState(false);
+  const [allMembers, setAllMembers] = useState<GroupMemberResponse[]>([]);
+  const [loadingMoreMembers, setLoadingMoreMembers] = useState(false);
+
+  // 加载群成员（初始只加载10个）
+  const loadMembers = useCallback(async () => {
+    if (!groupId) return;
+    try {
+      setLoading(true);
+      const response = await groupManager.getMembers(groupId, 1, 10);
+      setMembers(response.list || []);
+    } catch (error) {
+      console.error('[GroupInfoPanel] 加载成员失败:', error);
+    } finally {
+      setLoading(false);
+    }
+  }, [groupId]);
+
+  // 加载全部群成员
+  const loadAllMembers = useCallback(async () => {
+    if (!groupId) return;
+    try {
+      setLoadingMoreMembers(true);
+      const response = await groupManager.getMembers(groupId, 1, 100);
+      setAllMembers(response.list || []);
+      setShowAllMembers(true);
+    } catch (error) {
+      console.error('[GroupInfoPanel] 加载全部成员失败:', error);
+    } finally {
+      setLoadingMoreMembers(false);
+    }
+  }, [groupId]);
+
+  // 加载群公告
+  const loadAnnouncements = useCallback(async () => {
+    if (!groupId) return;
+    try {
+      const response = await groupService.getAnnouncements(groupId, 1, 10);
+      setAnnouncements(response.list || []);
+    } catch (error) {
+      console.error('[GroupInfoPanel] 加载公告失败:', error);
+    }
+  }, [groupId]);
+
+  // 每次打开面板时重置状态
+  useEffect(() => {
+    if (visible) {
+      setShowAllMembers(false);
+      setAllMembers([]);
+    }
+  }, [visible]);
+
+  useEffect(() => {
+    if (visible && groupId) {
+      loadMembers();
+      loadAnnouncements();
+    }
+  }, [visible, groupId, loadMembers, loadAnnouncements]);
+
+  useEffect(() => {
+    if (visible) {
+      Animated.parallel([
+        Animated.timing(slideAnim, {
+          toValue: 0,
+          duration: 300,
+          // Web 端不使用 useNativeDriver
+          useNativeDriver: false,
+        }),
+        Animated.timing(fadeAnim, {
+          toValue: 1,
+          duration: 300,
+          // Web 端不使用 useNativeDriver
+          useNativeDriver: false,
+        }),
+      ]).start();
+    } else {
+      Animated.parallel([
+        Animated.timing(slideAnim, {
+          toValue: PANEL_WIDTH,
+          duration: 300,
+          // Web 端不使用 useNativeDriver
+          useNativeDriver: false,
+        }),
+        Animated.timing(fadeAnim, {
+          toValue: 0,
+          duration: 300,
+          // Web 端不使用 useNativeDriver
+          useNativeDriver: false,
+        }),
+      ]).start();
+    }
+  }, [visible, slideAnim, fadeAnim]);
+
+  if (!isWideScreen) {
+    return null;
+  }
+
+  // 获取加群方式文本
+  const getJoinTypeText = (joinType?: number): string => {
+    switch (joinType) {
+      case 0:
+        return '允许任何人加入';
+      case 1:
+        return '需要管理员审批';
+      case 2:
+        return '不允许任何人加入';
+      default:
+        return '未知';
+    }
+  };
+
+  return (
+    <>
+      {/* 遮罩层 */}
+      {visible && (
+        <Animated.View style={[styles.overlay, { opacity: fadeAnim }]}>
+          <TouchableOpacity
+            style={styles.overlayTouchable}
+            onPress={onClose}
+            activeOpacity={1}
+          />
+        </Animated.View>
+      )}
+      
+      {/* 侧边栏面板 */}
+      <Animated.View
+        style={[
+          styles.panel,
+          {
+            transform: [{ translateX: slideAnim }],
+          },
+        ]}
+      >
+        {/* 头部 */}
+        <View style={styles.header}>
+          <Text style={styles.headerTitle}>群信息</Text>
+          <TouchableOpacity onPress={onClose} style={styles.closeButton}>
+            <MaterialCommunityIcons name="close" size={24} color="#333" />
+          </TouchableOpacity>
+        </View>
+
+        <ScrollView style={styles.content} showsVerticalScrollIndicator={false}>
+          {/* 群头像和名称 */}
+          <View style={styles.groupInfoSection}>
+            <Avatar
+              source={groupInfo?.avatar}
+              size={80}
+              name={groupInfo?.name || '群聊'}
+            />
+            <Text style={styles.groupName}>{groupInfo?.name || '群聊'}</Text>
+            <Text style={styles.memberCount}>
+              {groupInfo?.member_count || members.length || 0} 位成员
+            </Text>
+            {groupInfo?.join_type !== undefined && (
+              <Text style={styles.joinType}>
+                {getJoinTypeText(groupInfo.join_type)}
+              </Text>
+            )}
+            {/* 邀请新成员按钮 */}
+            {onInviteMembers && (
+              <TouchableOpacity
+                style={styles.inviteButton}
+                onPress={onInviteMembers}
+                activeOpacity={0.7}
+              >
+                <MaterialCommunityIcons name="account-plus" size={18} color={colors.primary.main} />
+                <Text style={styles.inviteButtonText}>邀请新成员</Text>
+              </TouchableOpacity>
+            )}
+          </View>
+
+          {/* 分割线 */}
+          <View style={styles.divider} />
+
+          {/* 群公告 */}
+          {announcements.length > 0 && (
+            <View style={styles.section}>
+              <View style={styles.sectionHeader}>
+                <MaterialCommunityIcons name="bullhorn" size={18} color={colors.warning.main} />
+                <Text style={styles.sectionTitle}>群公告</Text>
+              </View>
+              <View style={styles.noticeBox}>
+                <Text style={styles.noticeText}>{announcements[0].content}</Text>
+                <Text style={styles.noticeTime}>
+                  {new Date(announcements[0].created_at).toLocaleDateString()}
+                </Text>
+              </View>
+            </View>
+          )}
+
+          {/* 群简介 */}
+          {!!groupInfo?.description && (
+            <View style={styles.section}>
+              <Text style={styles.sectionTitle}>群简介</Text>
+              <View style={styles.descriptionBox}>
+                <Text style={styles.description}>{groupInfo.description}</Text>
+              </View>
+            </View>
+          )}
+
+          {/* 群成员列表 */}
+          <View style={styles.section}>
+            <View style={styles.memberListHeader}>
+              <Text style={styles.sectionTitle}>成员列表 ({groupInfo?.member_count || members.length})</Text>
+              {onViewAllMembers && !showAllMembers && members.length >= 10 && (
+                <TouchableOpacity onPress={loadAllMembers} style={styles.viewAllButton} disabled={loadingMoreMembers}>
+                  <Text style={styles.viewAllText}>
+                    {loadingMoreMembers ? '加载中...' : '查看全部'}
+                  </Text>
+                  <MaterialCommunityIcons name="chevron-right" size={16} color={colors.primary.main} />
+                </TouchableOpacity>
+              )}
+              {onViewAllMembers && showAllMembers && (
+                <TouchableOpacity onPress={() => setShowAllMembers(false)} style={styles.viewAllButton}>
+                  <Text style={styles.viewAllText}>收起</Text>
+                  <MaterialCommunityIcons name="chevron-up" size={16} color={colors.primary.main} />
+                </TouchableOpacity>
+              )}
+            </View>
+            <View style={styles.memberList}>
+              {(showAllMembers ? allMembers : members).map((member) => (
+                <View key={member.id || member.user_id} style={styles.memberItem}>
+                  <Avatar
+                    source={member.user?.avatar}
+                    size={44}
+                    name={member.nickname || member.user?.nickname || '用户'}
+                  />
+                  <View style={styles.memberInfo}>
+                    <Text style={styles.memberName} numberOfLines={1}>
+                      {member.nickname || member.user?.nickname || '用户'}
+                    </Text>
+                    {member.role === 'owner' && (
+                      <Text style={styles.ownerBadge}>群主</Text>
+                    )}
+                    {member.role === 'admin' && (
+                      <Text style={styles.adminBadge}>管理员</Text>
+                    )}
+                  </View>
+                </View>
+              ))}
+            </View>
+          </View>
+
+          {/* 群信息 */}
+          <View style={styles.section}>
+            <Text style={styles.sectionTitle}>群信息</Text>
+            <View style={styles.infoRow}>
+              <Text style={styles.infoLabel}>群号</Text>
+              <Text style={styles.infoValue}>{groupInfo?.id || '-'}</Text>
+            </View>
+            <View style={styles.infoRow}>
+              <Text style={styles.infoLabel}>创建时间</Text>
+              <Text style={styles.infoValue}>
+                {groupInfo?.created_at
+                  ? new Date(groupInfo.created_at).toLocaleDateString('zh-CN')
+                  : '-'}
+              </Text>
+            </View>
+            <View style={styles.infoRow}>
+              <Text style={styles.infoLabel}>全员禁言</Text>
+              <Text style={styles.infoValue}>
+                {groupInfo?.mute_all ? '已开启' : '已关闭'}
+              </Text>
+            </View>
+          </View>
+
+          {/* 操作按钮 */}
+          <View style={styles.actionSection}>
+            {conversationId && onTogglePin && (
+              <TouchableOpacity
+                style={styles.actionButton}
+                onPress={() => onTogglePin(!isPinned)}
+                activeOpacity={0.7}
+              >
+                <MaterialCommunityIcons
+                  name={isPinned ? "pin-off" : "pin"}
+                  size={22}
+                  color={colors.primary.main}
+                />
+                <Text style={styles.actionButtonText}>
+                  {isPinned ? '取消置顶' : '置顶群聊'}
+                </Text>
+              </TouchableOpacity>
+            )}
+            
+            {onLeaveGroup && (
+              <TouchableOpacity
+                style={[styles.actionButton, styles.leaveButton]}
+                onPress={onLeaveGroup}
+                activeOpacity={0.7}
+              >
+                <MaterialCommunityIcons
+                  name="logout"
+                  size={22}
+                  color={colors.error.main}
+                />
+                <Text style={[styles.actionButtonText, styles.leaveButtonText]}>
+                  退出群聊
+                </Text>
+              </TouchableOpacity>
+            )}
+          </View>
+        </ScrollView>
+      </Animated.View>
+    </>
+  );
+};
+
+function createGroupInfoPanelStyles(colors: AppColors) {
+  return StyleSheet.create({
+  overlay: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: 'rgba(0, 0, 0, 0.3)',
+    zIndex: 100,
+  },
+  overlayTouchable: {
+    flex: 1,
+  },
+  panel: {
+    position: 'absolute',
+    right: 0,
+    top: 0,
+    bottom: 0,
+    width: PANEL_WIDTH,
+    backgroundColor: colors.background.paper,
+    zIndex: 101,
+    ...shadows.lg,
+  },
+  header: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+    paddingHorizontal: spacing.md,
+    paddingVertical: spacing.md,
+    borderBottomWidth: 1,
+    borderBottomColor: colors.divider,
+  },
+  headerTitle: {
+    fontSize: fontSizes.xl,
+    fontWeight: '600',
+    color: colors.text.primary,
+  },
+  closeButton: {
+    padding: spacing.xs,
+  },
+  content: {
+    flex: 1,
+  },
+  groupInfoSection: {
+    alignItems: 'center',
+    paddingVertical: spacing.xl,
+  },
+  groupName: {
+    fontSize: fontSizes.xl,
+    fontWeight: '600',
+    color: colors.text.primary,
+    marginTop: spacing.md,
+  },
+  memberCount: {
+    fontSize: fontSizes.md,
+    color: colors.text.secondary,
+    marginTop: spacing.xs,
+  },
+  joinType: {
+    fontSize: fontSizes.sm,
+    color: colors.primary.main,
+    marginTop: spacing.xs,
+  },
+  inviteButton: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'center',
+    paddingVertical: spacing.sm,
+    paddingHorizontal: spacing.md,
+    backgroundColor: colors.primary.light + '15',
+    borderRadius: 20,
+    marginTop: spacing.md,
+    borderWidth: 1,
+    borderColor: colors.primary.light,
+  },
+  inviteButtonText: {
+    fontSize: fontSizes.sm,
+    color: colors.primary.main,
+    marginLeft: spacing.xs,
+    fontWeight: '500',
+  },
+  divider: {
+    height: 1,
+    backgroundColor: colors.divider,
+    marginHorizontal: spacing.md,
+  },
+  section: {
+    padding: spacing.md,
+  },
+  sectionHeader: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    marginBottom: spacing.sm,
+  },
+  sectionTitle: {
+    fontSize: fontSizes.md,
+    fontWeight: '600',
+    color: colors.text.primary,
+    marginLeft: spacing.xs,
+  },
+  noticeBox: {
+    backgroundColor: colors.chat.tipBg,
+    padding: spacing.md,
+    borderRadius: 8,
+    borderLeftWidth: 3,
+    borderLeftColor: colors.warning.main,
+  },
+  noticeText: {
+    fontSize: fontSizes.sm,
+    color: colors.text.secondary,
+    lineHeight: 20,
+  },
+  noticeTime: {
+    fontSize: fontSizes.xs,
+    color: colors.text.hint,
+    marginTop: spacing.xs,
+    textAlign: 'right',
+  },
+  descriptionBox: {
+    backgroundColor: colors.chat.surfaceMuted,
+    padding: spacing.md,
+    borderRadius: 8,
+  },
+  description: {
+    fontSize: fontSizes.sm,
+    color: colors.text.secondary,
+    lineHeight: 20,
+  },
+  memberList: {
+    gap: spacing.sm,
+  },
+  memberListHeader: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    alignItems: 'center',
+    marginBottom: spacing.sm,
+  },
+  viewAllButton: {
+    flexDirection: 'row',
+    alignItems: 'center',
+  },
+  viewAllText: {
+    fontSize: fontSizes.sm,
+    color: colors.primary.main,
+  },
+  memberItem: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    paddingVertical: spacing.xs,
+  },
+  memberInfo: {
+    flex: 1,
+    marginLeft: spacing.sm,
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+  },
+  memberName: {
+    fontSize: fontSizes.md,
+    color: colors.text.primary,
+    flex: 1,
+  },
+  ownerBadge: {
+    fontSize: fontSizes.xs,
+    color: colors.warning.main,
+    marginLeft: spacing.xs,
+    backgroundColor: colors.warning.light + '30',
+    paddingHorizontal: 6,
+    paddingVertical: 2,
+    borderRadius: 4,
+  },
+  adminBadge: {
+    fontSize: fontSizes.xs,
+    color: colors.primary.main,
+    marginLeft: spacing.xs,
+    backgroundColor: colors.primary.light + '30',
+    paddingHorizontal: 6,
+    paddingVertical: 2,
+    borderRadius: 4,
+  },
+  moreMembers: {
+    fontSize: fontSizes.sm,
+    color: colors.text.secondary,
+    textAlign: 'center',
+    paddingVertical: spacing.sm,
+  },
+  infoRow: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    paddingVertical: spacing.sm,
+    borderBottomWidth: 1,
+    borderBottomColor: colors.chat.borderHairline,
+  },
+  infoLabel: {
+    fontSize: fontSizes.sm,
+    color: colors.text.secondary,
+  },
+  infoValue: {
+    fontSize: fontSizes.sm,
+    color: colors.text.primary,
+  },
+  actionSection: {
+    padding: spacing.md,
+    paddingBottom: spacing.xl,
+  },
+  actionButton: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'center',
+    paddingVertical: spacing.md,
+    backgroundColor: colors.primary.light + '15',
+    borderRadius: 12,
+    marginBottom: spacing.sm,
+    borderWidth: 1,
+    borderColor: colors.primary.light,
+  },
+  actionButtonText: {
+    fontSize: fontSizes.md,
+    fontWeight: '600',
+    color: colors.primary.main,
+    marginLeft: spacing.sm,
+  },
+  leaveButton: {
+    backgroundColor: colors.error.light + '15',
+    borderColor: colors.error.light,
+  },
+  leaveButtonText: {
+    color: colors.error.main,
+  },
+  });
+}
+
+export default GroupInfoPanel;

src/screens/message/components/ChatScreen/MessageBubble.tsx

@@ -404,7 +404,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
             >
               <Avatar
                 source={senderInfo.avatar}
-                size={36}
+                size={40}
                 name={senderInfo.nickname}
               />
             </TouchableOpacity>
@@ -418,7 +418,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
             >
               <Avatar
                 source={otherUser?.avatar || null}
-                size={36}
+                size={40}
                 name={otherUser?.nickname || ''}
               />
             </TouchableOpacity>
@@ -452,7 +452,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
             <View style={styles.avatarWrapper}>
               <Avatar
                 source={currentUser?.avatar || null}
-                size={36}
+                size={40}
                 name={currentUser?.nickname || ''}
               />
             </View>

src/screens/message/components/ChatScreen/SegmentRenderer.tsx

@@ -847,11 +847,11 @@ function createSegmentStyles(colors: AppColors) {
     marginTop: 2,
   },
 
-  // 文本 - Telegram风格：统一深色字体
+  // 文本 - 适配暗色模式
   textContent: {
-    fontSize: 16,
-    lineHeight: 23,
-    letterSpacing: 0.2,
+    fontSize: 17.5,
+    lineHeight: 25,
+    letterSpacing: 0.1,
     fontWeight: '400',
   },
   textMe: {
@@ -861,27 +861,22 @@ function createSegmentStyles(colors: AppColors) {
     color: colors.chat.textPrimary,
   },
 
-  // @提及 - Telegram风格：蓝色高亮
+  // @提及 - 微信/QQ 风格：更精致的高亮
   atText: {
     fontSize: 16,
-    lineHeight: 23,
-    fontWeight: '600',
-    paddingHorizontal: 2,
+    lineHeight: 22,
+    fontWeight: '500',
   },
   atTextMe: {
-    color: '#4A88C7',
-    backgroundColor: 'rgba(74, 136, 199, 0.12)',
-    borderRadius: 4,
+    color: '#1A5F9E',  // 深蓝色，在绿色背景上更清晰
   },
   atTextOther: {
     color: colors.chat.link,
-    backgroundColor: 'rgba(74, 136, 199, 0.12)',
-    borderRadius: 4,
   },
   atHighlight: {
-    backgroundColor: 'rgba(74, 136, 199, 0.2)',
+    backgroundColor: 'rgba(74, 136, 199, 0.15)',
     borderRadius: 4,
-    paddingHorizontal: 4,
+    paddingHorizontal: 3,
   },
 
   // 图片 - QQ风格：保持原始宽高比

src/screens/message/components/ChatScreen/constants.ts

@@ -143,6 +143,8 @@ export const EMOJIS = [
 
 // 更多功能项
 export const MORE_ACTIONS: MoreAction[] = [
+  { id: 'voice_call', icon: 'phone', name: '语音通话', color: '#4CAF50' },
+  { id: 'video_call', icon: 'video', name: '视频通话', color: '#2196F3' },
   { id: 'image', icon: 'image', name: '图片', color: '#FF6B6B' },
   { id: 'camera', icon: 'camera', name: '拍摄', color: '#4ECDC4' },
   { id: 'file', icon: 'file-document', name: '文件', color: '#45B7D1' },

src/screens/message/components/ChatScreen/styles.ts

@@ -114,11 +114,22 @@ export function createChatScreenStyles(colors: AppColors) {
     alignItems: 'center',
     justifyContent: 'center',
     borderRadius: 19,
-    backgroundColor: colors.chat.surfaceRaised,
-    borderWidth: 1,
-    borderColor: colors.chat.borderLight,
+    backgroundColor: 'transparent',
   },
-  
+  headerActions: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    gap: spacing.xs,
+  },
+  callButton: {
+    width: 38,
+    height: 38,
+    alignItems: 'center',
+    justifyContent: 'center',
+    borderRadius: 19,
+    backgroundColor: `${colors.primary.main}12`,
+  },
+
   // 消息列表
   messageListContainer: {
     flex: 1,
@@ -201,7 +212,7 @@ export function createChatScreenStyles(colors: AppColors) {
     alignItems: 'flex-start',
   },
   
-  // 头像
+  // 头像 - 更大一点
   avatarWrapper: {
     marginHorizontal: 2,
     shadowColor: colors.chat.shadow,
@@ -226,43 +237,43 @@ export function createChatScreenStyles(colors: AppColors) {
     alignItems: 'flex-start',
   },
   senderName: {
-    fontSize: 13,
-    color: colors.chat.link,
+    fontSize: 14,
+    color: colors.chat.textSecondary, // 使用主题次要文字颜色
     marginBottom: 4,
     marginLeft: 4,
     fontWeight: '600',
   },
   
-  // 消息气泡 - 外层极轻阴影（纯文字气泡更接近扁平 IM）
+  // 消息气泡 - 微信风格：更小的圆角 + 更紧凑的内边距
   messageBubbleOuter: {
-    borderRadius: 16,
-    minWidth: 60,
+    borderRadius: 12,
+    minWidth: 44,
     shadowColor: colors.chat.shadow,
-    shadowOffset: { width: 0, height: 0.5 },
-    shadowOpacity: 0.04,
-    shadowRadius: 1,
+    shadowOffset: { width: 0, height: 1 },
+    shadowOpacity: 0.06,
+    shadowRadius: 2,
     elevation: 1,
   },
   myBubbleOuter: {
-    borderBottomRightRadius: 4,
+    borderBottomRightRadius: 4,  // 微信的小尾巴更尖
   },
   theirBubbleOuter: {
     borderTopLeftRadius: 4,
   },
-  // 内层：背景 + 裁剪，防止回复条/@ 高亮在圆角外露出颜色
+  // 内层：更紧凑的微信风格内边距
   messageBubbleInner: {
-    borderRadius: 16,
+    borderRadius: 12,
     overflow: 'hidden',
-    paddingHorizontal: spacing.md,
-    paddingVertical: spacing.sm + 4,
-    minWidth: 60,
+    paddingHorizontal: 10,  // 微信：更窄的左右边距
+    paddingVertical: 7,     // 微信：更紧的上下边距
+    minWidth: 44,
   },
   myBubbleInner: {
-    backgroundColor: colors.chat.replyTint,
+    backgroundColor: colors.chat.bubbleOutgoing,
     borderBottomRightRadius: 4,
   },
   theirBubbleInner: {
-    backgroundColor: colors.chat.card,
+    backgroundColor: colors.chat.bubbleIncoming,
     borderTopLeftRadius: 4,
   },
   recalledBubble: {
@@ -272,17 +283,17 @@ export function createChatScreenStyles(colors: AppColors) {
     borderStyle: 'dashed',
   },
   myBubbleText: {
-    color: colors.chat.textPrimary, // 主文案
-    fontSize: 16,
-    lineHeight: 23,
-    letterSpacing: 0.2,
+    color: colors.chat.textPrimary,  // 使用主题文字颜色
+    fontSize: 18,
+    lineHeight: 25,
+    letterSpacing: 0.1,
     fontWeight: '400',
   },
   theirBubbleText: {
-    color: colors.chat.textPrimary, // 主文案
-    fontSize: 16,
-    lineHeight: 23,
-    letterSpacing: 0.2,
+    color: colors.chat.textPrimary,  // 使用主题文字颜色
+    fontSize: 18,
+    lineHeight: 25,
+    letterSpacing: 0.1,
     fontWeight: '400',
   },
   // 选中状态
@@ -312,21 +323,21 @@ export function createChatScreenStyles(colors: AppColors) {
     fontStyle: 'italic',
   },
   
-  // 图片消息 - QQ风格：更大的图片，更明显的圆角
+  // 图片消息 - QQ/微信风格：更大的圆角，更柔和的阴影
   imageBubble: {
     borderRadius: 18,
     overflow: 'hidden',
     shadowColor: colors.chat.shadow,
     shadowOffset: { width: 0, height: 3 },
-    shadowOpacity: 0.15,
+    shadowOpacity: 0.12,
     shadowRadius: 6,
-    elevation: 5,
+    elevation: 4,
   },
   myImageBubble: {
-    borderBottomRightRadius: 6, // 右下角尖，箭头在右下
+    borderBottomRightRadius: 8,
   },
   theirImageBubble: {
-    borderTopLeftRadius: 6, // 左上角尖，箭头在左上
+    borderTopLeftRadius: 8,
   },
   messageImage: {
     width: 220,

src/screens/message/components/ChatScreen/useChatScreen.ts

@@ -26,7 +26,7 @@ import { messageService } from '../../../../services/messageService';
 import { uploadService } from '../../../../services/uploadService';
 import { ApiError } from '../../../../services/api';
 // 【新架构】使用 MessageManager
-import { useChat, useGroupTyping, useGroupMuted, messageManager } from '../../../../stores';
+import { useChat, useGroupTyping, useGroupMuted, messageManager, callStore } from '../../../../stores';
 import { groupService } from '../../../../services/groupService';
 import { userManager } from '../../../../stores/userManager';
 import { groupManager } from '../../../../stores/groupManager';
@@ -1060,6 +1060,24 @@ export const useChatScreen = () => {
   // 处理更多功能
   const handleMoreAction = useCallback((actionId: string) => {
     switch (actionId) {
+      case 'voice_call':
+        if (!isGroupChat && otherUser?.id && conversationId) {
+          callStore.getState().startCall(conversationId, otherUser.id, {
+            nickname: otherUser.nickname,
+            avatar: otherUser.avatar,
+          }, 'voice');
+        }
+        setActivePanel('none');
+        break;
+      case 'video_call':
+        if (!isGroupChat && otherUser?.id && conversationId) {
+          callStore.getState().startCall(conversationId, otherUser.id, {
+            nickname: otherUser.nickname,
+            avatar: otherUser.avatar,
+          }, 'video');
+        }
+        setActivePanel('none');
+        break;
       case 'image':
         handlePickImage();
         break;
@@ -1077,7 +1095,7 @@ export const useChatScreen = () => {
       default:
         setActivePanel('none');
     }
-  }, [handlePickImage, handleTakePhoto]);
+  }, [handlePickImage, handleTakePhoto, isGroupChat, otherUser, conversationId]);
 
   // 插入表情
   const handleInsertEmoji = useCallback((emoji: string) => {

src/screens/message/components/EmbeddedChat.tsx

@@ -23,6 +23,8 @@ import { spacing, fontSizes, shadows, useAppColors, type AppColors } from '../..
 import { ConversationResponse, MessageResponse, MessageSegment, GroupMemberResponse, ImageSegmentData } from '../../../types/dto';
 import { Avatar, Text, ImageGallery, AppBackButton } from '../../../components/common';
 import { useAuthStore, messageManager, MessageEvent, MessageSubscriber } from '../../../stores';
+import { formatDistanceToNow } from 'date-fns';
+import { zhCN } from 'date-fns/locale';
 import { extractTextFromSegments } from '../../../types/dto';
 import { useBreakpointGTE } from '../../../hooks/useResponsive';
 import { useMarkAsRead } from '../../../stores/messageManagerHooks';
@@ -30,15 +32,20 @@ import { messageService } from '../../../services';
 import * as hrefs from '../../../navigation/hrefs';
 import { GroupInfoPanel } from './ChatScreen/GroupInfoPanel';
 import { LongPressMenu, MenuPosition, GroupMessage } from './ChatScreen';
+import { EmojiPanel } from './ChatScreen/EmojiPanel';
+import { MorePanel } from './ChatScreen/MorePanel';
 
 const { width: screenWidth } = Dimensions.get('window');
 const PANEL_WIDTH = 360;
 
+// 时间分隔间隔（毫秒）- 5分钟
+const TIME_SEPARATOR_INTERVAL = 5 * 60 * 1000;
+
 function createEmbeddedChatStyles(colors: AppColors) {
   return StyleSheet.create({
     container: {
       flex: 1,
-      backgroundColor: colors.chat.screen,
+      backgroundColor: colors.background.default,
     },
     header: {
       flexDirection: 'row',
@@ -78,7 +85,7 @@ function createEmbeddedChatStyles(colors: AppColors) {
     },
     messageList: {
       flex: 1,
-      backgroundColor: colors.chat.screen,
+      backgroundColor: colors.background.default,
     },
     centerContainer: {
       flex: 1,
@@ -102,7 +109,7 @@ function createEmbeddedChatStyles(colors: AppColors) {
     },
     messageRow: {
       flexDirection: 'row',
-      alignItems: 'flex-end',
+      alignItems: 'flex-start',
       marginBottom: spacing.md,
       maxWidth: screenWidth * 0.7,
     },
@@ -112,6 +119,15 @@ function createEmbeddedChatStyles(colors: AppColors) {
     messageRowRight: {
       alignSelf: 'flex-end',
       justifyContent: 'flex-end',
+      alignItems: 'flex-end',
+    },
+    avatarWrapper: {
+      marginHorizontal: 2,
+    },
+    messageContent: {
+      maxWidth: screenWidth * 0.5,
+      marginHorizontal: spacing.xs,
+      alignItems: 'flex-start',
     },
     messageBubble: {
       maxWidth: screenWidth * 0.5,
@@ -122,11 +138,11 @@ function createEmbeddedChatStyles(colors: AppColors) {
     },
     messageBubbleMe: {
       backgroundColor: colors.chat.replyTint,
-      borderBottomRightRadius: 4,
+      borderTopRightRadius: 4,
     },
     messageBubbleOther: {
       backgroundColor: colors.chat.bubbleIncoming,
-      borderBottomLeftRadius: 4,
+      borderTopLeftRadius: 4,
       shadowColor: colors.chat.shadow,
       shadowOffset: { width: 0, height: 0.5 },
       shadowOpacity: 0.04,
@@ -134,9 +150,11 @@ function createEmbeddedChatStyles(colors: AppColors) {
       elevation: 1,
     },
     senderName: {
-      fontSize: 12,
+      fontSize: 14,
       color: colors.text.secondary,
-      marginBottom: 2,
+      marginBottom: 4,
+      marginLeft: 4,
+      fontWeight: '600',
     },
     messageText: {
       fontSize: 15,
@@ -149,7 +167,7 @@ function createEmbeddedChatStyles(colors: AppColors) {
       color: colors.chat.textPrimary,
     },
     inputArea: {
-      backgroundColor: colors.chat.screen,
+      backgroundColor: colors.background.paper,
       borderTopWidth: StyleSheet.hairlineWidth,
       borderTopColor: colors.divider,
       paddingHorizontal: spacing.md,
@@ -227,6 +245,43 @@ function createEmbeddedChatStyles(colors: AppColors) {
       fontSize: 12,
       marginTop: 4,
     },
+    // 时间分隔样式
+    timeContainer: {
+      alignItems: 'center',
+      marginVertical: spacing.md,
+    },
+    timeText: {
+      color: 'rgba(142, 142, 147, 0.95)',
+      fontSize: 11,
+      backgroundColor: 'rgba(142, 142, 147, 0.1)',
+      paddingHorizontal: spacing.sm + 4,
+      paddingVertical: 5,
+      borderRadius: 12,
+      fontWeight: '500',
+      overflow: 'hidden',
+      letterSpacing: 0.2,
+    },
+    // 系统通知样式（如"某某加入了群聊"）
+    systemNoticeContainer: {
+      alignItems: 'center',
+      marginVertical: spacing.sm,
+      paddingHorizontal: spacing.md,
+    },
+    systemNoticeText: {
+      fontSize: 12,
+      color: colors.chat.textSecondary,
+      backgroundColor: 'rgba(142, 142, 147, 0.12)',
+      paddingHorizontal: spacing.md,
+      paddingVertical: spacing.xs,
+      borderRadius: 12,
+      overflow: 'hidden',
+    },
+    // 面板容器样式
+    panelContainer: {
+      backgroundColor: colors.background.paper,
+      borderTopWidth: StyleSheet.hairlineWidth,
+      borderTopColor: colors.divider,
+    },
   });
 }
 
@@ -268,6 +323,81 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
   // 回复状态
   const [replyingToMessage, setReplyingToMessage] = useState<GroupMessage | null>(null);
   
+  // 面板显示状态
+  const [showEmojiPanel, setShowEmojiPanel] = useState(false);
+  const [showMorePanel, setShowMorePanel] = useState(false);
+
+  // 切换表情面板
+  const toggleEmojiPanel = useCallback(() => {
+    setShowEmojiPanel(prev => !prev);
+    setShowMorePanel(false);
+    if (!showEmojiPanel) {
+      inputRef.current?.blur();
+    }
+  }, [showEmojiPanel]);
+
+  // 切换更多功能面板
+  const toggleMorePanel = useCallback(() => {
+    setShowMorePanel(prev => !prev);
+    setShowEmojiPanel(false);
+    if (!showMorePanel) {
+      inputRef.current?.blur();
+    }
+  }, [showMorePanel]);
+
+  // 关闭所有面板
+  const closePanels = useCallback(() => {
+    setShowEmojiPanel(false);
+    setShowMorePanel(false);
+  }, []);
+
+  // 插入表情
+  const handleInsertEmoji = useCallback((emoji: string) => {
+    setInputText(prev => prev + emoji);
+  }, []);
+
+  // 发送自定义表情
+  const handleSendSticker = useCallback(async (stickerUrl: string) => {
+    if (!conversation.id) return;
+    
+    try {
+      setSending(true);
+      const segments: MessageSegment[] = [{
+        type: 'image',
+        data: { url: stickerUrl, thumbnail_url: stickerUrl }
+      }];
+      await messageManager.sendMessage(String(conversation.id), segments);
+      closePanels();
+    } catch (error) {
+      console.error('[EmbeddedChat] 发送表情失败:', error);
+    } finally {
+      setSending(false);
+    }
+  }, [conversation.id, closePanels]);
+
+  // 处理更多功能
+  const handleMoreAction = useCallback((actionId: string) => {
+    switch (actionId) {
+      case 'image':
+        // TODO: 实现选择图片功能
+        console.log('选择图片');
+        break;
+      case 'camera':
+        // TODO: 实现相机功能
+        console.log('相机');
+        break;
+      case 'file':
+        // TODO: 实现文件功能
+        console.log('文件');
+        break;
+      case 'location':
+        // TODO: 实现位置功能
+        console.log('位置');
+        break;
+    }
+    closePanels();
+  }, [closePanels]);
+  
   // 群信息面板动画
   const slideAnim = useRef(new Animated.Value(PANEL_WIDTH)).current;
   const fadeAnim = useRef(new Animated.Value(0)).current;
@@ -276,6 +406,42 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
   // 群成员列表
   const [groupMembers, setGroupMembers] = useState<GroupMemberResponse[]>([]);
   
+  // 格式化时间
+  const formatTime = useCallback((dateString: string): string => {
+    try {
+      const date = new Date(dateString);
+      const now = new Date();
+      const diffInHours = (now.getTime() - date.getTime()) / (1000 * 60 * 60);
+
+      if (diffInHours < 24 && date.getDate() === now.getDate()) {
+        // 当天消息显示 "上午/下午 HH:mm" 格式
+        const hours = date.getHours();
+        const period = hours < 12 ? '上午' : '下午';
+        const displayHours = hours % 12 || 12;
+        const minutes = date.getMinutes().toString().padStart(2, '0');
+        return `${period} ${displayHours}:${minutes}`;
+      }
+
+      return formatDistanceToNow(date, {
+        addSuffix: true,
+        locale: zhCN,
+      });
+    } catch {
+      return '';
+    }
+  }, []);
+
+  // 检查是否需要显示时间分隔
+  const shouldShowTime = useCallback((index: number): boolean => {
+    if (index === 0) return true;
+    const currentMsg = messages[index];
+    const prevMsg = messages[index - 1];
+    if (!currentMsg || !prevMsg) return false;
+    const currentTime = new Date(currentMsg.created_at).getTime();
+    const prevTime = new Date(prevMsg.created_at).getTime();
+    return (currentTime - prevTime) > TIME_SEPARATOR_INTERVAL;
+  }, [messages]);
+  
   // 打开/关闭群信息面板
   const toggleGroupInfoPanel = useCallback(() => {
     if (showGroupInfoPanel) {
@@ -325,8 +491,21 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
       setLoading(true);
       await messageManager.fetchMessages(String(conversation.id));
       setMessages(messageManager.getMessages(String(conversation.id)));
-    } catch (error) {
-      console.error('[EmbeddedChat] 加载消息失败:', error);
+    } catch (error: any) {
+      // 检查是否是权限错误或会话不存在错误
+      const errorMessage = error?.message || String(error);
+      if (
+        errorMessage.includes('not found') ||
+        errorMessage.includes('no permission') ||
+        error?.code === 'NOT_FOUND' ||
+        error?.code === 'FORBIDDEN'
+      ) {
+        console.warn('[EmbeddedChat] 会话不存在或无权限访问:', conversation.id);
+        // 设置空消息列表，让 UI 显示"暂无消息"而不是崩溃
+        setMessages([]);
+      } else {
+        console.error('[EmbeddedChat] 加载消息失败:', error);
+      }
     } finally {
       setLoading(false);
     }
@@ -558,9 +737,36 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
   };
   
   // 渲染消息
-  const renderMessage = ({ item }: { item: MessageResponse }) => {
+  const renderMessage = ({ item, index }: { item: MessageResponse; index: number }) => {
     const isMe = String(item.sender_id) === String(currentUser?.id);
-    
+    const showTime = shouldShowTime(index);
+
+    // 系统通知消息特殊处理
+    // 1. is_system_notice 字段（WebSocket 推送时设置）
+    // 2. category === 'notification'（从数据库加载时使用）
+    // 3. sender_id === '10000'（系统发送者兜底）
+    const isSystemNotice = (item as any).is_system_notice || item.category === 'notification' || item.sender_id === '10000';
+
+    // 系统通知消息渲染（如"某某加入了群聊"）
+    if (isSystemNotice) {
+      return (
+        <View>
+          {showTime && (
+            <View style={styles.timeContainer}>
+              <Text style={styles.timeText}>
+                {formatTime(item.created_at)}
+              </Text>
+            </View>
+          )}
+          <View style={styles.systemNoticeContainer}>
+            <Text style={styles.systemNoticeText}>
+              {(item as any).notice_content || extractTextFromSegments(item.segments)}
+            </Text>
+          </View>
+        </View>
+      );
+    }
+
     // 处理指针事件（鼠标右键）- 使用 onPointerDown 检测鼠标右键
     const handlePointerDown = (e: any) => {
       // e.nativeEvent.button: 0=左键, 1=中键, 2=右键
@@ -572,33 +778,55 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
         handleMessageRightPress(item, e);
       }
     };
-    
+
     return (
-      <View
-        style={[styles.messageRow, isMe ? styles.messageRowRight : styles.messageRowLeft]}
-        // @ts-ignore - React Native for Web 支持 pointer events
-        onPointerDown={handlePointerDown}
-      >
-        {!isMe && (
-          <Avatar
-            source={item.sender?.avatar}
-            size={36}
-            name={item.sender?.nickname || item.sender?.username}
-          />
+      <View>
+        {/* 时间分隔 */}
+        {showTime && (
+          <View style={styles.timeContainer}>
+            <Text style={styles.timeText}>
+              {formatTime(item.created_at)}
+            </Text>
+          </View>
         )}
-        <View style={[styles.messageBubble, isMe ? styles.messageBubbleMe : styles.messageBubbleOther]}>
-          {isGroupChat && !isMe && (
-            <Text style={styles.senderName}>{item.sender?.nickname || item.sender?.username}</Text>
+        <View
+          style={[styles.messageRow, isMe ? styles.messageRowRight : styles.messageRowLeft]}
+          // @ts-ignore - React Native for Web 支持 pointer events
+          onPointerDown={handlePointerDown}
+        >
+          {/* 对方头像（左侧） */}
+          {!isMe && (
+            <View style={styles.avatarWrapper}>
+              <Avatar
+                source={item.sender?.avatar}
+                size={36}
+                name={item.sender?.nickname || item.sender?.username}
+              />
+            </View>
+          )}
+
+          {/* 消息内容区域 */}
+          <View style={styles.messageContent}>
+            {/* 群聊模式：显示发送者昵称（在气泡上方，与头像顶部对齐） */}
+            {isGroupChat && !isMe && (
+              <Text style={styles.senderName}>{item.sender?.nickname || item.sender?.username}</Text>
+            )}
+            <View style={[styles.messageBubble, isMe ? styles.messageBubbleMe : styles.messageBubbleOther]}>
+              {renderMessageContent(item)}
+            </View>
+          </View>
+
+          {/* 自己的头像（右侧） */}
+          {isMe && (
+            <View style={styles.avatarWrapper}>
+              <Avatar
+                source={currentUser?.avatar}
+                size={36}
+                name={currentUser?.nickname || currentUser?.username}
+              />
+            </View>
           )}
-          {renderMessageContent(item)}
         </View>
-        {isMe && (
-          <Avatar
-            source={currentUser?.avatar}
-            size={36}
-            name={currentUser?.nickname || currentUser?.username}
-          />
-        )}
       </View>
     );
   };
@@ -669,8 +897,12 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
       >
         <View style={styles.inputArea}>
           <View style={styles.inputRow}>
-            <TouchableOpacity style={styles.iconButton}>
-              <MaterialCommunityIcons name="plus-circle-outline" size={28} color={colors.text.secondary} />
+            <TouchableOpacity style={styles.iconButton} onPress={toggleMorePanel}>
+              <MaterialCommunityIcons 
+                name={showMorePanel ? "close-circle-outline" : "plus-circle-outline"} 
+                size={28} 
+                color={showMorePanel ? colors.primary.main : colors.text.secondary} 
+              />
             </TouchableOpacity>
             
             <View style={styles.inputContainer}>
@@ -691,8 +923,12 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
               />
             </View>
             
-            <TouchableOpacity style={styles.iconButton}>
-              <MaterialCommunityIcons name="emoticon-outline" size={28} color={colors.text.secondary} />
+            <TouchableOpacity style={styles.iconButton} onPress={toggleEmojiPanel}>
+              <MaterialCommunityIcons 
+                name={showEmojiPanel ? "emoticon-happy" : "emoticon-outline"} 
+                size={28} 
+                color={showEmojiPanel ? colors.primary.main : colors.text.secondary} 
+              />
             </TouchableOpacity>
             
             <TouchableOpacity 
@@ -708,6 +944,26 @@ export const EmbeddedChat: React.FC<EmbeddedChatProps> = ({ conversation, onBack
             </TouchableOpacity>
           </View>
         </View>
+        
+        {/* 表情面板 */}
+        {showEmojiPanel && (
+          <View style={{ height: 350, backgroundColor: colors.background.paper }}>
+            <EmojiPanel
+              onInsertEmoji={handleInsertEmoji}
+              onInsertSticker={handleSendSticker}
+              onClose={closePanels}
+            />
+          </View>
+        )}
+        
+        {/* 更多功能面板 */}
+        {showMorePanel && (
+          <View style={{ height: 350, backgroundColor: colors.background.paper }}>
+            <MorePanel
+              onAction={handleMoreAction}
+            />
+          </View>
+        )}
       </KeyboardAvoidingView>
       
       {/* 群信息侧边栏面板 - 仅大屏幕显示 */}

src/screens/profile/AccountSecurityScreen.tsx

@@ -10,8 +10,11 @@ import {
 import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
 import { spacing, fontSizes, borderRadius, useAppColors, type AppColors } from '../../theme';
-import { Text, ResponsiveContainer } from '../../components/common';
-import { useResponsive } from '../../hooks';
+import { Text } from '../../components/common';
+import { useResponsive, useResponsiveSpacing } from '../../hooks';
+
+// 内容最大宽度
+const CONTENT_MAX_WIDTH = 720;
 import { authService, resolveAuthApiError } from '../../services/authService';
 import { showPrompt } from '../../services/promptService';
 import { useAuthStore } from '../../stores';
@@ -340,15 +343,13 @@ export const AccountSecurityScreen: React.FC = () => {
     </>
   );
 
+  const responsivePadding = useResponsiveSpacing({ xs: 8, sm: 12, md: 16, lg: 24, xl: 32 });
+
   return (
     <SafeAreaView style={styles.container} edges={['bottom']}>
-      {isWideScreen ? (
-        <ResponsiveContainer maxWidth={800}>
-          <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}>{content}</ScrollView>
-        </ResponsiveContainer>
-      ) : (
-        <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}>{content}</ScrollView>
-      )}
+      <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding }]}>
+        {content}
+      </ScrollView>
     </SafeAreaView>
   );
 };
@@ -380,6 +381,9 @@ function createAccountSecurityStyles(colors: AppColors) {
       marginHorizontal: spacing.lg,
       borderRadius: borderRadius.lg,
       padding: spacing.md,
+      maxWidth: CONTENT_MAX_WIDTH,
+      alignSelf: 'center',
+      width: '100%',
     },
     statusRow: {
       flexDirection: 'row',

src/screens/profile/EditProfileScreen.tsx

@@ -31,9 +31,12 @@ import {
   type AppColors,
 } from '../../theme';
 import { useAuthStore } from '../../stores';
-import { Avatar, Button, Text, ResponsiveContainer } from '../../components/common';
+import { Avatar, Button, Text } from '../../components/common';
 import { authService, uploadService } from '../../services';
-import { useResponsive } from '../../hooks';
+import { useResponsive, useResponsiveSpacing } from '../../hooks';
+
+// 内容最大宽度
+const CONTENT_MAX_WIDTH = 720;
 
 function createEditProfileStyles(colors: AppColors) {
   return StyleSheet.create({
@@ -210,6 +213,9 @@ function createEditProfileStyles(colors: AppColors) {
     shadowOpacity: 0.05,
     shadowRadius: 8,
     elevation: 2,
+    maxWidth: CONTENT_MAX_WIDTH,
+    alignSelf: 'center',
+    width: '100%',
   },
   sectionTitle: {
     marginBottom: spacing.lg,
@@ -357,6 +363,7 @@ export const EditProfileScreen: React.FC = () => {
   const navigation = useNavigation();
   const { currentUser, updateUser } = useAuthStore();
   const { isWideScreen, isMobile, width } = useResponsive();
+  const responsivePadding = useResponsiveSpacing({ xs: 8, sm: 12, md: 16, lg: 24, xl: 32 });
   const insets = useSafeAreaInsets();
 
   const [nickname, setNickname] = useState(currentUser?.nickname || '');
@@ -793,23 +800,12 @@ export const EditProfileScreen: React.FC = () => {
         behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
         style={styles.keyboardView}
       >
-        {isWideScreen ? (
-          <ResponsiveContainer maxWidth={800}>
-            <ScrollView
-              contentContainerStyle={styles.scrollContent}
-              showsVerticalScrollIndicator={false}
-            >
-              {renderFormContent()}
-            </ScrollView>
-          </ResponsiveContainer>
-        ) : (
-          <ScrollView
-            contentContainerStyle={styles.scrollContent}
-            showsVerticalScrollIndicator={false}
-          >
-            {renderFormContent()}
-          </ScrollView>
-        )}
+        <ScrollView
+          contentContainerStyle={[styles.scrollContent, { paddingHorizontal: responsivePadding }]}
+          showsVerticalScrollIndicator={false}
+        >
+          {renderFormContent()}
+        </ScrollView>
       </KeyboardAvoidingView>
     </SafeAreaView>
   );

src/screens/profile/NotificationSettingsScreen.tsx

@@ -14,14 +14,17 @@ import {
 import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
 import { spacing, borderRadius, useAppColors, type AppColors } from '../../theme';
-import { Text, ResponsiveContainer } from '../../components/common';
+import { Text } from '../../components/common';
 import {
   loadNotificationPreferences,
   setPushNotificationsPreference,
   setSoundPreference,
   setVibrationPreference,
 } from '../../services/notificationPreferences';
-import { useResponsive } from '../../hooks';
+import { useResponsive, useResponsiveSpacing } from '../../hooks';
+
+// 内容最大宽度
+const CONTENT_MAX_WIDTH = 720;
 
 interface NotificationSettingItem {
   key: string;
@@ -168,19 +171,13 @@ export const NotificationSettingsScreen: React.FC = () => {
     </>
   );
 
+  const responsivePadding = useResponsiveSpacing({ xs: 8, sm: 12, md: 16, lg: 24, xl: 32 });
+
   return (
     <SafeAreaView style={styles.container} edges={['bottom']}>
-      {isWideScreen ? (
-        <ResponsiveContainer maxWidth={800}>
-          <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}>
-            {renderContent()}
-          </ScrollView>
-        </ResponsiveContainer>
-      ) : (
-        <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}>
-          {renderContent()}
-        </ScrollView>
-      )}
+      <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding }]}>
+        {renderContent()}
+      </ScrollView>
     </SafeAreaView>
   );
 };
@@ -212,6 +209,9 @@ function createNotificationSettingsStyles(colors: AppColors) {
       marginHorizontal: spacing.lg,
       borderRadius: borderRadius.lg,
       overflow: 'hidden',
+      maxWidth: CONTENT_MAX_WIDTH,
+      alignSelf: 'center',
+      width: '100%',
     },
     settingItem: {
       flexDirection: 'row',

src/screens/profile/SettingsScreen.tsx

@@ -23,13 +23,17 @@ import {
   borderRadius,
   useThemePreference,
   useSetThemePreference,
+  useThemeStore,
   type AppColors,
 } from '../../theme';
 import { useAuthStore } from '../../stores';
-import { Text, ResponsiveContainer } from '../../components/common';
-import { useResponsive } from '../../hooks';
+import { Text } from '../../components/common';
+import { useResponsive, useResponsiveSpacing } from '../../hooks';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
 
+// 设置卡片最大宽度
+const SETTINGS_CARD_MAX_WIDTH = 720;
+
 import * as hrefs from '../../navigation/hrefs';
 
 interface SettingsItem {
@@ -83,6 +87,9 @@ function createSettingsStyles(colors: AppColors) {
     },
     groupContainer: {
       marginBottom: spacing.lg,
+      maxWidth: SETTINGS_CARD_MAX_WIDTH,
+      alignSelf: 'center',
+      width: '100%',
     },
     groupHeader: {
       flexDirection: 'row',
@@ -153,6 +160,9 @@ function createSettingsStyles(colors: AppColors) {
       paddingVertical: spacing.md,
       borderRadius: borderRadius.lg,
       gap: spacing.sm,
+      maxWidth: SETTINGS_CARD_MAX_WIDTH,
+      alignSelf: 'center',
+      width: '100%',
     },
     logoutText: {
       fontWeight: '500',
@@ -171,9 +181,9 @@ function createSettingsStyles(colors: AppColors) {
 export const SettingsScreen: React.FC = () => {
   const router = useRouter();
   const { logout } = useAuthStore();
-  const { isWideScreen } = useResponsive();
   const insets = useSafeAreaInsets();
   const { isMobile } = useResponsive();
+  const responsivePadding = useResponsiveSpacing({ xs: 8, sm: 12, md: 16, lg: 24, xl: 32 });
   const colors = useAppColors();
   const styles = useMemo(() => createSettingsStyles(colors), [colors]);
   const themePreference = useThemePreference();
@@ -204,29 +214,41 @@ export const SettingsScreen: React.FC = () => {
 
   const handleItemPress = (key: string) => {
     switch (key) {
-      case 'theme':
-        Alert.alert('主题模式', '选择应用界面明暗', [
-          { text: '取消', style: 'cancel' },
-          {
-            text: '跟随系统',
-            onPress: () => {
-              void setThemePreference('system');
+      case 'theme': {
+        // 获取调试信息
+        const { Appearance } = require('react-native');
+        const systemScheme = Appearance?.getColorScheme?.() || 'undefined';
+        const resolvedScheme = useThemeStore.getState().resolvedScheme;
+        const storedPref = useThemeStore.getState().preference;
+        const storedSystem = useThemeStore.getState().systemScheme;
+        
+        Alert.alert(
+          '主题模式',
+          `选择应用界面明暗\n\n[调试信息]\n系统主题: ${systemScheme}\n存储偏好: ${storedPref}\n存储系统: ${storedSystem}\n实际应用: ${resolvedScheme}`,
+          [
+            { text: '取消', style: 'cancel' },
+            {
+              text: '跟随系统',
+              onPress: () => {
+                void setThemePreference('system');
+              },
             },
-          },
-          {
-            text: '浅色',
-            onPress: () => {
-              void setThemePreference('light');
+            {
+              text: '浅色',
+              onPress: () => {
+                void setThemePreference('light');
+              },
             },
-          },
-          {
-            text: '深色',
-            onPress: () => {
-              void setThemePreference('dark');
+            {
+              text: '深色',
+              onPress: () => {
+                void setThemePreference('dark');
+              },
             },
-          },
-        ]);
+          ]
+        );
         break;
+      }
       case 'edit_profile':
         router.push(hrefs.hrefProfileEdit());
         break;
@@ -342,17 +364,9 @@ export const SettingsScreen: React.FC = () => {
 
   return (
     <SafeAreaView style={styles.container} edges={['bottom']}>
-      {isWideScreen ? (
-        <ResponsiveContainer maxWidth={800}>
-          <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}>
-            {renderContent()}
-          </ScrollView>
-        </ResponsiveContainer>
-      ) : (
-        <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset }]}>
-          {renderContent()}
-        </ScrollView>
-      )}
+      <ScrollView contentContainerStyle={[styles.scrollContent, { paddingBottom: scrollBottomInset, paddingHorizontal: responsivePadding }]}>
+        {renderContent()}
+      </ScrollView>
     </SafeAreaView>
   );
 };

src/services/api.ts

@@ -20,7 +20,7 @@ const getBaseUrl = () => {
 };
 
 const BASE_URL = getBaseUrl();
-const SSE_URL = `${BASE_URL.replace(/\/+$/, '')}/realtime/sse`;
+const WS_URL = `${BASE_URL.replace(/^https?:\/\//, 'wss://').replace(/\/api\/v1$/, '/api/v1')}/realtime/ws`;
 
 // Token 存储键
 const TOKEN_KEY = 'auth_token';
@@ -441,4 +441,4 @@ class ApiClient {
 // 导出 API 客户端实例
 export const api = new ApiClient(BASE_URL);
 
-export { SSE_URL, TOKEN_KEY, REFRESH_TOKEN_KEY };
+export { WS_URL, TOKEN_KEY, REFRESH_TOKEN_KEY };

src/services/apkUpdateService.ts

@@ -0,0 +1,290 @@
+/**
+ * APK 更新检查服务
+ * 用于检查最新版本并提示用户下载更新
+ */
+
+import { Platform, Linking, Alert } from 'react-native';
+import Constants from 'expo-constants';
+import AsyncStorage from '@react-native-async-storage/async-storage';
+import { showConfirm } from './dialogService';
+
+// 条件导入原生模块（仅在 Android 上可用）
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const FileSystem = Platform.OS === 'android' ? require('expo-file-system/legacy') : null;
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const IntentLauncher = Platform.OS === 'android' ? require('expo-intent-launcher') : null;
+
+// 更新服务器地址
+const UPDATES_SERVER_URL = Constants.expoConfig?.extra?.updatesUrl
+  ? Constants.expoConfig.extra.updatesUrl.replace('/api/manifest', '')
+  : 'https://updates.littlelan.cn';
+
+// 检查间隔（毫秒）：24小时
+const CHECK_INTERVAL = 24 * 60 * 60 * 1000;
+
+// 最后检查时间存储键
+const LAST_CHECK_KEY = 'apk_update_last_check';
+
+// APK 版本信息
+export interface APKVersionInfo {
+  runtimeVersion: string;
+  versionName: string;
+  size: number;
+  downloadUrl: string;
+  createdAt: string;
+}
+
+// 版本比较结果
+export interface VersionCheckResult {
+  hasUpdate: boolean;
+  currentVersion: string;
+  latestVersion: string;
+  downloadUrl: string;
+  size: number;
+}
+
+/**
+ * 比较版本号
+ * 返回: 1 表示 v1 > v2, -1 表示 v1 < v2, 0 表示相等
+ */
+function compareVersions(v1: string, v2: string): number {
+  const parts1 = v1.split('.').map(Number);
+  const parts2 = v2.split('.').map(Number);
+  
+  for (let i = 0; i < Math.max(parts1.length, parts2.length); i++) {
+    const p1 = parts1[i] || 0;
+    const p2 = parts2[i] || 0;
+    if (p1 > p2) return 1;
+    if (p1 < p2) return -1;
+  }
+  return 0;
+}
+
+/**
+ * 获取最新 APK 版本信息
+ */
+async function fetchLatestAPKVersion(): Promise<APKVersionInfo | null> {
+  try {
+    const response = await fetch(`${UPDATES_SERVER_URL}/api/apk/latest`, {
+      method: 'GET',
+      headers: {
+        'Accept': 'application/json',
+      },
+    });
+
+    if (!response.ok) {
+      console.warn('Failed to fetch latest APK version:', response.status);
+      return null;
+    }
+
+    const data: APKVersionInfo = await response.json();
+    return data;
+  } catch (error) {
+    console.error('Error fetching latest APK version:', error);
+    return null;
+  }
+}
+
+/**
+ * 获取当前应用版本
+ */
+function getCurrentVersion(): string {
+  return Constants.expoConfig?.version || '1.0.0';
+}
+
+/**
+ * 格式化文件大小
+ */
+function formatFileSize(bytes: number): string {
+  if (bytes < 1024) return `${bytes} B`;
+  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
+  if (bytes < 1024 * 1024 * 1024) return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
+  return `${(bytes / (1024 * 1024 * 1024)).toFixed(1)} GB`;
+}
+
+/**
+ * 检查是否应该执行检查（避免频繁检查）
+ */
+async function shouldCheck(): Promise<boolean> {
+  try {
+    const lastCheck = await AsyncStorage.getItem(LAST_CHECK_KEY);
+    if (!lastCheck) return true;
+    
+    const lastCheckTime = parseInt(lastCheck, 10);
+    return Date.now() - lastCheckTime > CHECK_INTERVAL;
+  } catch {
+    return true;
+  }
+}
+
+/**
+ * 记录检查时间
+ */
+async function recordCheckTime(): Promise<void> {
+  try {
+    await AsyncStorage.setItem(LAST_CHECK_KEY, Date.now().toString());
+  } catch (error) {
+    console.error('Failed to record check time:', error);
+  }
+}
+
+/**
+ * 下载并安装 APK
+ */
+async function downloadAndInstallAPK(downloadUrl: string, version: string): Promise<void> {
+  if (Platform.OS !== 'android') {
+    Alert.alert('提示', '此功能仅支持 Android 设备');
+    return;
+  }
+
+  if (!FileSystem) {
+    Alert.alert('提示', '当前环境不支持 APK 更新，请在浏览器中下载');
+    Linking.openURL(downloadUrl);
+    return;
+  }
+
+  try {
+    const downloadPath = `${FileSystem.documentDirectory}carrot-bbs-${version}.apk`;
+    
+    // 显示下载进度
+    showConfirm({
+      title: '正在下载',
+      message: `正在下载新版本 ${version}，请稍候...`,
+      confirmText: '后台下载',
+      cancelText: '取消',
+      onConfirm: () => {
+        // 用户选择后台下载，继续
+      },
+      onCancel: () => {
+        // 用户取消
+      },
+    });
+
+    // 下载 APK
+    const downloadResult = await FileSystem.downloadAsync(downloadUrl, downloadPath);
+    
+    if (!downloadResult.uri) {
+      Alert.alert('下载失败', '无法下载安装包，请稍后重试');
+      return;
+    }
+
+    // 安装 APK
+    await installAPK(downloadResult.uri);
+  } catch (error) {
+    console.error('Download/Install error:', error);
+    Alert.alert('更新失败', '下载或安装过程中出错，请稍后重试');
+  }
+}
+
+/**
+ * 安装 APK
+ */
+async function installAPK(apkUri: string): Promise<void> {
+  try {
+    if (!FileSystem || !IntentLauncher) {
+      throw new Error('Native modules not available');
+    }
+    
+    // 获取文件的 content URI
+    const contentUri = await FileSystem.getContentUriAsync(apkUri);
+    
+    // 使用 Intent 安装 APK
+    await IntentLauncher.startActivityAsync('android.intent.action.INSTALL_PACKAGE', {
+      data: contentUri,
+      flags: 1, // FLAG_GRANT_READ_URI_PERMISSION
+    });
+  } catch (error) {
+    console.error('Install APK error:', error);
+    // 尝试使用浏览器下载
+    Linking.openURL(apkUri.replace('file://', ''));
+  }
+}
+
+/**
+ * 显示更新提示对话框
+ */
+function showUpdateDialog(result: VersionCheckResult): void {
+  const sizeText = formatFileSize(result.size);
+  
+  showConfirm({
+    title: '发现新版本',
+    message: `当前版本: ${result.currentVersion}\n最新版本: ${result.latestVersion}\n安装包大小: ${sizeText}\n\n是否立即下载更新？`,
+    confirmText: '立即更新',
+    cancelText: '稍后提醒',
+    onConfirm: () => {
+      downloadAndInstallAPK(result.downloadUrl, result.latestVersion);
+    },
+  });
+}
+
+/**
+ * 检查 APK 更新（主入口）
+ * @param force 是否强制检查（忽略时间间隔）
+ */
+export async function checkForAPKUpdate(force: boolean = false): Promise<VersionCheckResult | null> {
+  // 仅在 Android 平台检查
+  if (Platform.OS !== 'android') {
+    return null;
+  }
+
+  // 检查是否应该执行检查
+  if (!force) {
+    const should = await shouldCheck();
+    if (!should) {
+      console.log('APK update check skipped (too frequent)');
+      return null;
+    }
+  }
+
+  // 记录检查时间
+  await recordCheckTime();
+
+  // 获取最新版本信息
+  const latestAPK = await fetchLatestAPKVersion();
+  if (!latestAPK) {
+    console.log('No APK version info available');
+    return null;
+  }
+
+  const currentVersion = getCurrentVersion();
+  const latestVersion = latestAPK.versionName || latestAPK.runtimeVersion;
+
+  // 比较版本
+  const comparison = compareVersions(currentVersion, latestVersion);
+  
+  const result: VersionCheckResult = {
+    hasUpdate: comparison < 0,
+    currentVersion,
+    latestVersion,
+    downloadUrl: latestAPK.downloadUrl,
+    size: latestAPK.size,
+  };
+
+  // 如果有更新，显示对话框
+  if (result.hasUpdate) {
+    showUpdateDialog(result);
+  }
+
+  return result;
+}
+
+/**
+ * 手动检查更新（用户主动触发）
+ */
+export async function manualCheckForUpdate(): Promise<void> {
+  const result = await checkForAPKUpdate(true);
+  
+  if (!result) {
+    Alert.alert('检查失败', '无法获取版本信息，请检查网络连接');
+    return;
+  }
+  
+  if (!result.hasUpdate) {
+    Alert.alert('已是最新', `当前版本 ${result.currentVersion} 已是最新版本`);
+  }
+}
+
+export const apkUpdateService = {
+  checkForAPKUpdate,
+  manualCheckForUpdate,
+};

src/services/backgroundService.ts

@@ -11,7 +11,7 @@
 import { AppState, AppStateStatus, Platform } from 'react-native';
 import * as BackgroundFetch from 'expo-background-fetch';
 import * as TaskManager from 'expo-task-manager';
-import { sseService } from './sseService';
+import { wsService } from './wsService';
 import {
   triggerVibration,
   vibrateOnMessage,
@@ -36,8 +36,8 @@ let appStateSubscription: any = null;
 TaskManager.defineTask(BACKGROUND_FETCH_TASK, async () => {
   try {
     // 检查 SSE 连接状态
-    if (!sseService.isConnected()) {
-      await sseService.connect();
+    if (!wsService.isConnected()) {
+      await wsService.connect();
     }
     
     // 返回收到新数据
@@ -51,8 +51,8 @@ TaskManager.defineTask(BACKGROUND_FETCH_TASK, async () => {
 // SSE 保活任务
 TaskManager.defineTask(REALTIME_KEEPALIVE_TASK, async () => {
   try {
-    if (!sseService.isConnected()) {
-      await sseService.connect();
+    if (!wsService.isConnected()) {
+      await wsService.connect();
     }
     return BackgroundFetch.BackgroundFetchResult.NewData;
   } catch (error) {
@@ -120,8 +120,8 @@ function setupAppStateListener(): void {
     void nextAppState;
     if (nextAppState === 'active') {
       // App 回到前台，确保连接
-      if (!sseService.isConnected()) {
-        sseService.connect();
+      if (!wsService.isConnected()) {
+        wsService.connect();
       }
     }
   });

src/services/groupService.ts

@@ -78,7 +78,13 @@ function normalizeAnnouncementCursor(
 // 群组服务类（纯 API 层）
 // SQLite/内存缓存编排由 groupManager 统一处理
 class GroupService {
-  async fetchGroupsFromApi(page = 1, pageSize = 20): Promise<GroupListResponse> {
+  // ==================== 群组管理 ====================
+
+  /**
+   * 获取群组列表
+   * GET /api/v1/groups
+   */
+  async getGroups(page = 1, pageSize = 20): Promise<GroupListResponse> {
     const response = await api.get<GroupListResponse>('/groups', {
       page,
       page_size: pageSize,
@@ -86,16 +92,20 @@ class GroupService {
     return normalizeGroupListResponse(response.data);
   }
 
-  async fetchGroupFromApi(id: string): Promise<GroupResponse> {
+  /**
+   * 获取群组详情
+   * GET /api/v1/groups/:id
+   */
+  async getGroup(id: string): Promise<GroupResponse> {
     const response = await api.get<GroupResponse>(`/groups/${encodeURIComponent(id)}`);
     return normalizeGroup(response.data);
   }
 
-  async fetchMembersFromApi(
-    groupId: string,
-    page = 1,
-    pageSize = 50
-  ): Promise<GroupMemberListResponse> {
+  /**
+   * 获取群组成员列表
+   * GET /api/v1/groups/:id/members
+   */
+  async getMembers(groupId: string, page = 1, pageSize = 50): Promise<GroupMemberListResponse> {
     const response = await api.get<GroupMemberListResponse>(
       `/groups/${encodeURIComponent(groupId)}/members`,
       {
@@ -106,8 +116,6 @@ class GroupService {
     return normalizeMemberListResponse(response.data);
   }
 
-  // ==================== 群组管理 ====================
-
   /**
    * 创建群组
    * POST /api/v1/groups
@@ -117,22 +125,6 @@ class GroupService {
     return normalizeGroup(response.data);
   }
 
-  /**
-   * 获取群组列表
-   * GET /api/v1/groups
-   */
-  async getGroups(page = 1, pageSize = 20): Promise<GroupListResponse> {
-    return this.fetchGroupsFromApi(page, pageSize);
-  }
-
-  /**
-   * 获取群组详情
-   * GET /api/v1/groups/:id
-   */
-  async getGroup(id: string): Promise<GroupResponse> {
-    return this.fetchGroupFromApi(id);
-  }
-
   /**
    * 获取当前用户在群组中的成员信息
    * GET /api/v1/groups/:id/me
@@ -211,14 +203,6 @@ class GroupService {
     await api.post(`/groups/${encodeURIComponent(groupId)}/leave`);
   }
 
-  /**
-   * 获取群组成员列表
-   * GET /api/v1/groups/:id/members
-   */
-  async getMembers(groupId: string, page = 1, pageSize = 50): Promise<GroupMemberListResponse> {
-    return this.fetchMembersFromApi(groupId, page, pageSize);
-  }
-
   /**
    * 移除群成员（踢人）
    * POST /api/v1/groups/:id/members/kick

src/services/index.ts

@@ -4,7 +4,7 @@
  */
 
 // API 客户端
-export { api, SSE_URL, TOKEN_KEY, REFRESH_TOKEN_KEY } from './api';
+export { api, WS_URL, TOKEN_KEY, REFRESH_TOKEN_KEY } from './api';
 export type { ApiResponse, PaginatedData, ApiError } from './api';
 
 // 认证服务
@@ -47,8 +47,8 @@ export { voteService } from './voteService';
 export { channelService } from './channelService';
 export type { ChannelItem } from './channelService';
 
-// SSE 实时服务
-export { sseService } from './sseService';
+// WebSocket 实时服务
+export { wsService } from './wsService';
 export type {
   WSMessage,
   WSMessageType,
@@ -65,7 +65,7 @@ export type {
   WSGroupMentionMessage,
   WSGroupReadMessage,
   WSGroupRecallMessage
-} from './sseService';
+} from './wsService';
 
 // 系统通知服务
 export { systemNotificationService, getNotificationTitle } from './systemNotificationService';
@@ -110,3 +110,7 @@ export {
 // 统一提示/弹窗服务
 export { showPrompt } from './promptService';
 export { showConfirm } from './dialogService';
+
+// APK 更新检查服务
+export { apkUpdateService, checkForAPKUpdate, manualCheckForUpdate } from './apkUpdateService';
+export type { APKVersionInfo, VersionCheckResult } from './apkUpdateService';

src/services/messageService.ts

@@ -5,6 +5,7 @@
  */
 
 import { api } from './api';
+import { wsService } from './wsService';
 import {
   ConversationListResponse,
   ConversationResponse,
@@ -27,6 +28,7 @@ import {
   saveConversationCache,
   saveConversationsWithRelatedCache,
   updateConversationCacheUnreadCount,
+  saveUsersCache,
 } from './database';
 
 /** 远端会话列表分页（offset / cursor）统一结果：拉取成功后均已执行本地缓存同步 */
@@ -330,8 +332,22 @@ class MessageService {
         page: data.page || 1,
         page_size: data.page_size || 20,
       };
-    } catch (error) {
-      console.error('获取消息列表失败:', error);
+    } catch (error: any) {
+      // 检查是否是权限错误或会话不存在错误 - 这是正常情况，不需要打印错误日志
+      const errorMessage = error?.message || String(error);
+      if (
+        errorMessage.includes('not found') ||
+        errorMessage.includes('no permission') ||
+        error?.code === 'NOT_FOUND' ||
+        error?.code === 'FORBIDDEN'
+      ) {
+        // 会话不存在或无权限访问，返回空消息列表
+        // 这可能是因为会话已被删除、用户被踢出群聊等情况
+        console.warn('[MessageService] 会话不存在或无权限访问:', conversationId);
+      } else {
+        // 其他错误才打印错误日志
+        console.error('[MessageService] 获取消息列表失败:', error);
+      }
       return {
         messages: [],
         total: 0,
@@ -343,6 +359,7 @@ class MessageService {
 
   /**
    * 发送消息（新格式）
+   * 优先使用WebSocket发送，失败时降级到HTTP
    * POST /api/v1/conversations/:id/messages
    * Body: { detail_type, segments }
    */
@@ -356,12 +373,25 @@ class MessageService {
       throw new Error('消息内容不能为空');
     }
     
-    return this.sendMessageByAction(
-      detailType,
-      conversationId,
-      data.segments,
-      data.reply_to_id
-    );
+    // 优先使用WebSocket发送
+    try {
+      const result = await wsService.sendMessage(
+        conversationId,
+        detailType,
+        data.segments,
+        data.reply_to_id
+      );
+      return result;
+    } catch (error) {
+      console.log('WebSocket发送失败，降级到HTTP:', error);
+      // 降级到HTTP发送
+      return this.sendMessageByAction(
+        detailType,
+        conversationId,
+        data.segments,
+        data.reply_to_id
+      );
+    }
   }
 
   /**
@@ -493,13 +523,19 @@ class MessageService {
 
   /**
    * 撤回/删除消息
+   * 优先使用WebSocket，失败时降级到HTTP
    * POST /api/v1/messages/delete_msg
    * Body: { "message_id": "xxx" }
    */
   async recallMessage(messageId: string): Promise<void> {
-    await api.post('/messages/delete_msg', {
-      message_id: messageId,
-    });
+    try {
+      await wsService.recallMessage(messageId);
+    } catch (error) {
+      console.log('WebSocket撤回失败，降级到HTTP:', error);
+      await api.post('/messages/delete_msg', {
+        message_id: messageId,
+      });
+    }
   }
 
   /**
@@ -514,11 +550,16 @@ class MessageService {
 
   /**
    * 标记已读
+   * 优先使用WebSocket，失败时降级到HTTP
    * POST /api/v1/conversations/:id/read
    * @param conversationId 会话ID
    * @param seq 已读到的消息序号
    */
   async markAsRead(conversationId: string, seq: number): Promise<void> {
+    // 使用WebSocket发送已读标记（不等待响应）
+    wsService.markRead(conversationId, seq).catch(() => {});
+    
+    // 同时通过HTTP确保可靠性
     await api.post(`/conversations/${encodeURIComponent(conversationId)}/read`, {
       last_read_seq: Number(seq),
     });
@@ -530,9 +571,14 @@ class MessageService {
 
   /**
    * 上报输入状态
+   * 优先使用WebSocket，失败时降级到HTTP
    * POST /api/v1/conversations/:id/typing
    */
   async sendTyping(conversationId: string): Promise<void> {
+    // 使用WebSocket发送输入状态
+    wsService.sendTyping(conversationId, true);
+    
+    // 同时通过HTTP确保可靠性
     await api.post(`/conversations/${encodeURIComponent(conversationId)}/typing`);
   }
 

src/services/sseService.ts

@@ -1,517 +0,0 @@
-import { AppState, AppStateStatus } from 'react-native';
-import EventSource from 'react-native-sse';
-
-import { api, SSE_URL } from './api';
-import { MessageCategory, SystemMessageType, SystemMessageExtraData, MessageSegment } from '../types/dto';
-import { systemNotificationService } from './systemNotificationService';
-
-export type WSMessageType =
-  | 'chat'
-  | 'message'
-  | 'read'
-  | 'typing'
-  | 'recall'
-  | 'notification'
-  | 'announcement'
-  | 'group_message'
-  | 'group_typing'
-  | 'group_notice'
-  | 'group_mention'
-  | 'group_read'
-  | 'group_recall'
-  | 'notice'
-  | 'request'
-  | 'meta'
-  | 'private'
-  | 'group'
-  | 'follow'
-  | 'like'
-  | 'comment'
-  | 'heartbeat';
-
-export interface WSChatMessage {
-  type: 'chat';
-  conversation_id: string;
-  id: string;
-  sender_id: string;
-  seq: number;
-  segments?: MessageSegment[];
-  created_at: string;
-}
-
-export interface WSReadMessage {
-  type: 'read';
-  conversation_id: string;
-  user_id: string;
-  seq: number;
-}
-
-export interface WSTypingMessage {
-  type: 'typing';
-  conversation_id: string;
-  user_id: string;
-  is_typing: boolean;
-}
-
-export interface WSRecallMessage {
-  type: 'recall';
-  conversation_id: string;
-  message_id: string;
-}
-
-export interface WSNotificationMessage {
-  type: 'notification';
-  id: string;
-  sender_id?: string;
-  receiver_id?: string;
-  content: string;
-  category?: MessageCategory;
-  system_type?: SystemMessageType;
-  extra_data?: SystemMessageExtraData;
-  created_at: string;
-}
-
-export interface WSAnnouncementMessage {
-  type: 'announcement';
-  id: string;
-  sender_id?: string;
-  receiver_id?: string;
-  content: string;
-  category?: MessageCategory;
-  system_type?: SystemMessageType;
-  extra_data?: SystemMessageExtraData;
-  created_at: string;
-}
-
-export interface WSGroupMentionMessage {
-  type: 'group_mention';
-  group_id: string;
-  conversation_id: string;
-  message_id: string;
-  from_user_id: string;
-  content: string;
-  mention_all: boolean;
-  created_at: string;
-}
-
-export interface WSGroupChatMessage {
-  type: 'group_message';
-  conversation_id: string;
-  group_id: string;
-  id: string;
-  sender_id: string;
-  seq: number;
-  segments?: MessageSegment[];
-  created_at: string;
-}
-
-export interface WSGroupTypingMessage {
-  type: 'group_typing';
-  group_id: string;
-  user_id: string;
-  is_typing: boolean;
-}
-
-export type GroupNoticeType = 'member_join' | 'member_leave' | 'member_removed' | 'role_changed' | 'muted' | 'unmuted';
-
-export interface WSGroupNoticeMessage {
-  type: 'group_notice';
-  notice_type: GroupNoticeType;
-  group_id: string;
-  data: {
-    user_id?: string;
-    operator_id?: string;
-    role?: string;
-    [key: string]: any;
-  };
-  timestamp: number;
-  message_id?: string;
-  seq?: number;
-}
-
-export interface WSGroupReadMessage {
-  type: 'group_read';
-  group_id: string;
-  conversation_id: string;
-  user_id: string;
-  seq: number;
-}
-
-export interface WSGroupRecallMessage {
-  type: 'group_recall';
-  group_id: string;
-  conversation_id: string;
-  message_id: string;
-}
-
-export type WSMessage =
-  | WSChatMessage
-  | WSReadMessage
-  | WSTypingMessage
-  | WSRecallMessage
-  | WSNotificationMessage
-  | WSAnnouncementMessage
-  | WSGroupChatMessage
-  | WSGroupTypingMessage
-  | WSGroupNoticeMessage
-  | WSGroupMentionMessage
-  | WSGroupReadMessage
-  | WSGroupRecallMessage;
-
-type MessageHandler<T extends WSMessage = WSMessage> = (message: T) => void;
-type ConnectionHandler = () => void;
-
-interface SSEEnvelope {
-  event_id?: number;
-  event?: string;
-  ts?: number;
-  payload?: any;
-}
-
-class SSEService {
-  private source: EventSource | null = null;
-  private isConnecting = false;
-  private connected = false;
-  private reconnectAttempts = 0;
-  private maxReconnectAttempts = 20;
-  private reconnectDelay = 3000;
-  private reconnectTimer: NodeJS.Timeout | null = null;
-  private connectionWatchdogTimer: NodeJS.Timeout | null = null;
-  private readonly CONNECTION_IDLE_TIMEOUT_MS = 70000;
-  private messageHandlers: Map<WSMessageType, MessageHandler[]> = new Map();
-  private connectionHandlers: ConnectionHandler[] = [];
-  private disconnectionHandlers: ConnectionHandler[] = [];
-  private appStateSubscription: any = null;
-  private lastAppState: AppStateStatus = 'active';
-  private lastEventId = '';
-  private lastActivityAt = 0;
-  private shouldRun = false;
-
-  private toSSEUrl(): string {
-    return `${SSE_URL}?last_event_id=${encodeURIComponent(this.lastEventId)}`;
-  }
-
-  async connect(): Promise<boolean> {
-    this.shouldRun = true;
-    if (this.isConnecting || this.isConnected()) return true;
-    this.isConnecting = true;
-    try {
-      const token = await api.getToken();
-      if (!token) {
-        this.isConnecting = false;
-        return false;
-      }
-      const url = this.toSSEUrl();
-      this.source = new EventSource(url, {
-        headers: {
-          Authorization: `Bearer ${token}`,
-        },
-        // Use one reconnect strategy only (manual), avoid library auto-reconnect fighting with us.
-        pollingInterval: 0,
-        // Be explicit to prevent platform-level short idle timeout behavior.
-        timeout: this.CONNECTION_IDLE_TIMEOUT_MS,
-      });
-
-      this.source.addEventListener('open', () => {
-        this.isConnecting = false;
-        this.connected = true;
-        this.reconnectAttempts = 0;
-        this.markActivity();
-        this.startConnectionWatchdog();
-        this.connectionHandlers.forEach(h => h());
-      });
-
-      this.source.addEventListener('error', () => {
-        this.handleDisconnected();
-      });
-
-      this.source.addEventListener('done' as any, () => {
-        this.handleDisconnected();
-      });
-
-      this.source.addEventListener('close' as any, () => {
-        this.handleDisconnected();
-      });
-
-      const events = ['chat_message', 'message_read', 'typing', 'system_notification', 'group_notice', 'message_recall', 'heartbeat'];
-      events.forEach(eventName => {
-        this.source?.addEventListener(eventName as any, (evt: any) => this.handleIncoming(eventName, evt));
-      });
-
-      return true;
-    } catch {
-      this.isConnecting = false;
-      this.scheduleReconnect();
-      return false;
-    }
-  }
-
-  private handleIncoming(eventName: string, evt: any): void {
-    this.markActivity();
-    const rawData = typeof evt?.data === 'string' ? evt.data : '{}';
-    const lastEventId = evt?.lastEventId;
-    if (lastEventId) {
-      this.lastEventId = String(lastEventId);
-    }
-    let payload: any = {};
-    try {
-      payload = JSON.parse(rawData);
-    } catch {
-      payload = {};
-    }
-    this.dispatchEvent(eventName, payload);
-  }
-
-  private dispatchEvent(eventName: string, payload: any): void {
-    if (eventName === 'chat_message') {
-      const detailType = payload?.detail_type || 'private';
-      const m = payload?.message || payload;
-      if (detailType === 'group') {
-        const gm: WSGroupChatMessage = {
-          type: 'group_message',
-          conversation_id: m.conversation_id,
-          group_id: String(m.group_id ?? ''),
-          id: m.id,
-          sender_id: m.sender_id,
-          seq: Number(m.seq || 0),
-          segments: m.segments || [],
-          created_at: m.created_at || new Date().toISOString(),
-        };
-        this.emit('group_message', gm);
-      } else {
-        const cm: WSChatMessage = {
-          type: 'chat',
-          conversation_id: m.conversation_id,
-          id: m.id,
-          sender_id: m.sender_id,
-          seq: Number(m.seq || 0),
-          segments: m.segments || [],
-          created_at: m.created_at || new Date().toISOString(),
-        };
-        this.emit('chat', cm);
-      }
-      return;
-    }
-
-    if (eventName === 'message_read') {
-      const detailType = payload?.detail_type || 'private';
-      if (detailType === 'group') {
-        const m: WSGroupReadMessage = {
-          type: 'group_read',
-          group_id: String(payload.group_id ?? ''),
-          conversation_id: payload.conversation_id,
-          user_id: payload.user_id,
-          seq: Number(payload.seq || 0),
-        };
-        this.emit('group_read', m);
-      } else {
-        const m: WSReadMessage = {
-          type: 'read',
-          conversation_id: payload.conversation_id,
-          user_id: payload.user_id,
-          seq: Number(payload.seq || 0),
-        };
-        this.emit('read', m);
-      }
-      return;
-    }
-
-    if (eventName === 'typing') {
-      const detailType = payload?.detail_type || 'private';
-      if (detailType === 'group') {
-        const m: WSGroupTypingMessage = {
-          type: 'group_typing',
-          group_id: String(payload.group_id ?? ''),
-          user_id: payload.user_id,
-          is_typing: payload.is_typing !== false,
-        };
-        this.emit('group_typing', m);
-      } else {
-        const m: WSTypingMessage = {
-          type: 'typing',
-          conversation_id: payload.conversation_id,
-          user_id: payload.user_id,
-          is_typing: payload.is_typing !== false,
-        };
-        this.emit('typing', m);
-      }
-      return;
-    }
-
-    if (eventName === 'message_recall') {
-      const detailType = payload?.detail_type || 'private';
-      if (detailType === 'group') {
-        const m: WSGroupRecallMessage = {
-          type: 'group_recall',
-          group_id: String(payload.group_id ?? ''),
-          conversation_id: payload.conversation_id,
-          message_id: payload.message_id,
-        };
-        this.emit('group_recall', m);
-      } else {
-        const m: WSRecallMessage = {
-          type: 'recall',
-          conversation_id: payload.conversation_id,
-          message_id: payload.message_id,
-        };
-        this.emit('recall', m);
-      }
-      return;
-    }
-
-    if (eventName === 'group_notice') {
-      const m: WSGroupNoticeMessage = {
-        type: 'group_notice',
-        notice_type: payload.notice_type,
-        group_id: String(payload.group_id ?? ''),
-        data: payload.data || {},
-        timestamp: payload.timestamp || Date.now(),
-        message_id: payload.message_id,
-        seq: payload.seq,
-      };
-      this.emit('group_notice', m);
-      return;
-    }
-
-    if (eventName === 'system_notification') {
-      const m: WSNotificationMessage = {
-        type: 'notification',
-        id: String(payload.id ?? ''),
-        content: payload.content || '',
-        created_at: payload.created_at || new Date().toISOString(),
-      };
-      this.emit('notification', m);
-      systemNotificationService.handleWSMessage(m as any).catch(() => {});
-    }
-  }
-
-  private emit<T extends WSMessageType>(type: T, message: Extract<WSMessage, { type: T }>) {
-    const handlers = this.messageHandlers.get(type) || [];
-    handlers.forEach(h => h(message as WSMessage));
-  }
-
-  disconnect(): void {
-    this.shouldRun = false;
-    this.connected = false;
-    this.isConnecting = false;
-    if (this.source) {
-      this.source.close();
-      this.source = null;
-    }
-    this.stopConnectionWatchdog();
-    this.stopReconnect();
-  }
-
-  private scheduleReconnect(): void {
-    if (this.reconnectAttempts >= this.maxReconnectAttempts) return;
-    this.stopReconnect();
-    this.reconnectTimer = setTimeout(() => {
-      this.reconnectAttempts += 1;
-      this.connect();
-    }, this.reconnectDelay);
-  }
-
-  private stopReconnect() {
-    if (this.reconnectTimer) {
-      clearTimeout(this.reconnectTimer);
-      this.reconnectTimer = null;
-    }
-  }
-
-  isConnected(): boolean {
-    return this.connected;
-  }
-
-  on<T extends WSMessageType>(type: T, handler: MessageHandler<Extract<WSMessage, { type: T }>>): () => void {
-    const list = this.messageHandlers.get(type) || [];
-    list.push(handler as MessageHandler);
-    this.messageHandlers.set(type, list);
-    return () => {
-      const current = this.messageHandlers.get(type) || [];
-      const idx = current.indexOf(handler as MessageHandler);
-      if (idx >= 0) current.splice(idx, 1);
-    };
-  }
-
-  onConnect(handler: ConnectionHandler): () => void {
-    this.connectionHandlers.push(handler);
-    return () => {
-      const i = this.connectionHandlers.indexOf(handler);
-      if (i >= 0) this.connectionHandlers.splice(i, 1);
-    };
-  }
-
-  onDisconnect(handler: ConnectionHandler): () => void {
-    this.disconnectionHandlers.push(handler);
-    return () => {
-      const i = this.disconnectionHandlers.indexOf(handler);
-      if (i >= 0) this.disconnectionHandlers.splice(i, 1);
-    };
-  }
-
-  private setupAppStateListener(): void {
-    if (this.appStateSubscription) return;
-    this.lastAppState = AppState.currentState;
-    this.appStateSubscription = AppState.addEventListener('change', (nextState: AppStateStatus) => {
-      if (this.lastAppState.match(/inactive|background/) && nextState === 'active' && !this.isConnected()) {
-        this.reconnectAttempts = 0;
-        this.connect();
-      }
-      this.lastAppState = nextState;
-    });
-  }
-
-  async start(): Promise<boolean> {
-    this.setupAppStateListener();
-    return this.connect();
-  }
-
-  stop(): void {
-    if (this.appStateSubscription) {
-      this.appStateSubscription.remove();
-      this.appStateSubscription = null;
-    }
-    this.disconnect();
-  }
-
-  private markActivity(): void {
-    this.lastActivityAt = Date.now();
-  }
-
-  private startConnectionWatchdog(): void {
-    this.stopConnectionWatchdog();
-    this.connectionWatchdogTimer = setInterval(() => {
-      // During active app usage, if no SSE activity for too long, reconnect proactively.
-      if (!this.connected || this.lastActivityAt <= 0) return;
-      if (Date.now() - this.lastActivityAt > this.CONNECTION_IDLE_TIMEOUT_MS) {
-        this.handleDisconnected();
-      }
-    }, 10000);
-  }
-
-  private stopConnectionWatchdog(): void {
-    if (this.connectionWatchdogTimer) {
-      clearInterval(this.connectionWatchdogTimer);
-      this.connectionWatchdogTimer = null;
-    }
-  }
-
-  private handleDisconnected(): void {
-    const wasActive = this.connected || this.source != null || this.isConnecting;
-    this.isConnecting = false;
-    this.connected = false;
-    if (this.source) {
-      this.source.close();
-      this.source = null;
-    }
-    this.stopConnectionWatchdog();
-    if (wasActive) {
-      this.disconnectionHandlers.forEach(h => h());
-    }
-    if (this.shouldRun) {
-      this.scheduleReconnect();
-    }
-  }
-}
-
-export const sseService = new SSEService();

src/services/systemNotificationService.ts

@@ -6,7 +6,7 @@
 
 import * as Notifications from 'expo-notifications';
 import { Platform, AppState, AppStateStatus } from 'react-native';
-import type { WSChatMessage, WSNotificationMessage, WSAnnouncementMessage } from './sseService';
+import type { WSChatMessage, WSNotificationMessage, WSAnnouncementMessage } from './wsService';
 import { extractTextFromSegments } from '../types/dto';
 import { getNotificationPreferencesSync } from './notificationPreferences';
 import { vibrateOnMessage } from './messageVibrationService';

src/services/webrtc/WebRTCManager.ts

@@ -0,0 +1,669 @@
+import {
+  RTCPeerConnection,
+  RTCSessionDescription,
+  RTCIceCandidate,
+  mediaDevices,
+  MediaStream,
+} from 'react-native-webrtc';
+
+export interface ICEServer {
+  urls: string[];
+  username?: string;
+  credential?: string;
+}
+
+export type ConnectionState = 'new' | 'connecting' | 'connected' | 'disconnected' | 'failed' | 'closed';
+
+export type CallType = 'voice' | 'video';
+
+export type WebRTCManagerEvent =
+  | { type: 'icecandidate'; candidate: RTCIceCandidate | null }
+  | { type: 'connectionstatechange'; state: ConnectionState }
+  | { type: 'remotestream'; stream: MediaStream }
+  | { type: 'negotiationneeded'; offer: RTCSessionDescriptionInit }
+  | { type: 'error'; error: Error };
+
+type EventHandler = (event: WebRTCManagerEvent) => void;
+
+class WebRTCManager {
+  private peerConnection: RTCPeerConnection | null = null;
+  private localStream: MediaStream | null = null;
+  private remoteStream: MediaStream | null = null;
+  private pendingCandidates: RTCIceCandidateInit[] = [];
+  private iceServers: ICEServer[] = [];
+  private eventHandlers: Set<EventHandler> = new Set();
+  private disposed = false;
+  private isInitiator = false;
+  
+  // ICE restart 相关状态
+  private reconnectAttempts = 0;
+  private readonly MAX_RECONNECT_ATTEMPTS = 3;
+  private reconnectTimer: NodeJS.Timeout | null = null;
+  private disconnectTimer: NodeJS.Timeout | null = null;
+
+  async initialize(iceServers: ICEServer[] = []): Promise<void> {
+    if (this.peerConnection) {
+      this.dispose();
+    }
+    this.disposed = false;
+    this.iceServers = iceServers.length > 0
+      ? iceServers
+      : [{ urls: ['stun:stun.l.google.com:19302'] }];
+  }
+
+  private buildPeerConnectionConfig(): RTCConfiguration {
+    return {
+      iceServers: this.iceServers.map((server) => ({
+        urls: server.urls,
+        ...(server.username ? { username: server.username } : {}),
+        ...(server.credential ? { credential: server.credential } : {}),
+      })),
+      iceCandidatePoolSize: 10,
+    };
+  }
+
+  private createPeerConnection(): RTCPeerConnection {
+    const config = this.buildPeerConnectionConfig();
+    const pc = new RTCPeerConnection(config);
+
+    // @ts-ignore
+    pc.onicecandidate = (event) => {
+      if (event.candidate) {
+        this.emit({ type: 'icecandidate', candidate: event.candidate });
+      } else {
+        this.emit({ type: 'icecandidate', candidate: null });
+      }
+    };
+
+    // @ts-ignore
+    pc.oniceconnectionstatechange = () => {
+      const state = pc.iceConnectionState as ConnectionState;
+      this.emit({ type: 'connectionstatechange', state });
+      this.handleIceConnectionStateChange(state);
+    };
+
+    // @ts-ignore
+    pc.onconnectionstatechange = () => {
+      const state = pc.connectionState as ConnectionState;
+      this.emit({ type: 'connectionstatechange', state });
+      this.handleConnectionStateChange(state);
+    };
+
+    // @ts-ignore
+    pc.ontrack = (event) => {
+      console.log('[WebRTC] ontrack event, kind:', event.track?.kind, 'streams:', event.streams?.length ?? 0);
+      if (!event.track) {
+        console.log('[WebRTC] ontrack: no track in event');
+        return;
+      }
+      // Official react-native-webrtc approach: use event.streams[0] if available
+      if (event.streams && event.streams[0]) {
+        this.remoteStream = event.streams[0];
+      } else {
+        // Fallback: manually construct stream
+        if (!this.remoteStream) {
+          this.remoteStream = new MediaStream();
+        }
+        // Check if track already exists to avoid duplicates
+        const existingTracks = this.remoteStream.getTracks();
+        const trackExists = existingTracks.some(t => t.id === event.track.id);
+        if (!trackExists) {
+          this.remoteStream.addTrack(event.track);
+        }
+      }
+      this.emit({ type: 'remotestream', stream: this.remoteStream! });
+    };
+
+    // @ts-ignore
+    pc.onsignalingstatechange = () => {
+      console.log('[WebRTC] Signaling state changed:', pc.signalingState);
+    };
+
+    // @ts-ignore
+    pc.onnegotiationneeded = async () => {
+      console.log('[WebRTC] Negotiation needed, signalingState:', pc.signalingState);
+      if (!this.peerConnection || this.peerConnection !== pc) {
+        console.log('[WebRTC] PeerConnection changed or disposed, skipping');
+        return;
+      }
+      if (pc.signalingState !== 'stable') {
+        console.log('[WebRTC] Skipping negotiation, not in stable state:', pc.signalingState);
+        return;
+      }
+      try {
+        const offer = await this.createOffer();
+        if (this.peerConnection && !this.disposed) {
+          this.emit({ type: 'negotiationneeded', offer });
+        }
+      } catch (err) {
+        console.error('[WebRTC] Negotiation needed failed:', err);
+      }
+    };
+
+    return pc;
+  }
+
+  async createLocalStream(voiceOnly = true): Promise<MediaStream> {
+    const constraints = voiceOnly
+      ? { audio: true, video: false }
+      : { audio: true, video: { facingMode: 'user', frameRate: 30 } };
+
+    try {
+      // @ts-ignore
+      this.localStream = await mediaDevices.getUserMedia(constraints);
+      return this.localStream;
+    } catch (error) {
+      console.error('[WebRTC] Failed to get local media stream:', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Start a call using official addTrack approach
+   * Follows react-native-webrtc CallGuide.md
+   */
+  async startCall(isInitiator: boolean, callType: CallType = 'voice'): Promise<RTCSessionDescriptionInit | null> {
+    if (this.disposed) throw new Error('WebRTCManager has been disposed');
+    if (!this.localStream) throw new Error('Local stream not initialized');
+
+    this.isInitiator = isInitiator;
+    this.peerConnection = this.createPeerConnection();
+
+    // Official approach: add all tracks using addTrack
+    // addTrack automatically creates senders with proper directions
+    this.localStream.getTracks().forEach((track) => {
+      console.log('[WebRTC] Adding track:', track.kind, track.enabled);
+      this.peerConnection!.addTrack(track, this.localStream!);
+    });
+
+    if (isInitiator) {
+      // For initiator, create offer directly
+      const offer = await this.createOffer();
+      return offer;
+    }
+    return null;
+  }
+
+  async createOffer(): Promise<RTCSessionDescriptionInit> {
+    if (!this.peerConnection) throw new Error('PeerConnection not initialized');
+
+    console.log('[WebRTC] Creating offer...');
+
+    const offerOptions = {
+      offerToReceiveAudio: true,
+      offerToReceiveVideo: true,
+    };
+
+    const offer = await this.peerConnection.createOffer(offerOptions);
+
+    if (!this.peerConnection || this.disposed) {
+      throw new Error('PeerConnection was disposed during offer creation');
+    }
+
+    await this.peerConnection.setLocalDescription(offer);
+    return offer;
+  }
+
+  async createAnswer(): Promise<RTCSessionDescriptionInit> {
+    if (!this.peerConnection) throw new Error('PeerConnection not initialized');
+
+    console.log('[WebRTC] Creating answer...');
+
+    const answerOptions = {
+      offerToReceiveAudio: true,
+      offerToReceiveVideo: true,
+    };
+
+    // @ts-ignore
+    const answer = await this.peerConnection.createAnswer(answerOptions);
+
+    if (!this.peerConnection || this.disposed) {
+      throw new Error('PeerConnection was disposed during answer creation');
+    }
+
+    await this.peerConnection.setLocalDescription(answer);
+
+    // Process pending candidates
+    await this.processPendingCandidates();
+
+    return answer;
+  }
+
+  async createAnswerFromOffer(offer: RTCSessionDescriptionInit): Promise<RTCSessionDescriptionInit> {
+    await this.setRemoteDescription(offer);
+    return this.createAnswer();
+  }
+
+  /**
+   * Rollback to stable state (for glare handling)
+   * Used when both peers try to negotiate simultaneously
+   */
+  async rollback(): Promise<void> {
+    if (!this.peerConnection) {
+      throw new Error('PeerConnection not initialized');
+    }
+
+    const pc = this.peerConnection;
+    const signalingState = pc.signalingState;
+
+    console.log('[WebRTC] Attempting rollback, current state:', signalingState);
+
+    // Only rollback if we're not in stable state
+    if (signalingState === 'stable') {
+      console.log('[WebRTC] Already in stable state, no rollback needed');
+      return;
+    }
+
+    try {
+      // For react-native-webrtc, we may need to recreate the peer connection
+      // as rollback is not fully supported
+      if (signalingState === 'have-local-offer') {
+        // Rollback local offer by setting local description to null/undefined
+        // @ts-ignore - react-native-webrtc specific
+        if (pc.setLocalDescription) {
+          // @ts-ignore
+          await pc.setLocalDescription({ type: 'rollback' });
+        }
+      } else if (signalingState === 'have-remote-offer') {
+        // Rollback remote offer
+        // @ts-ignore
+        if (pc.setRemoteDescription) {
+          // @ts-ignore
+          await pc.setRemoteDescription({ type: 'rollback' });
+        }
+      }
+
+      console.log('[WebRTC] Rollback successful');
+    } catch (err) {
+      console.error('[WebRTC] Rollback failed:', err);
+      throw err;
+    }
+  }
+
+  async setRemoteDescription(description: RTCSessionDescriptionInit): Promise<void> {
+    if (!this.peerConnection) {
+      console.error('[WebRTC] setRemoteDescription: PeerConnection is null');
+      throw new Error('PeerConnection not initialized');
+    }
+
+    if (!description.sdp) {
+      throw new Error('setRemoteDescription: sdp is required');
+    }
+
+    console.log('[WebRTC] Setting remote description, type:', description.type);
+
+    const desc = new RTCSessionDescription({
+      type: description.type,
+      sdp: description.sdp,
+    });
+    await this.peerConnection.setRemoteDescription(desc);
+
+    console.log('[WebRTC] Remote description set successfully');
+
+    // Process pending candidates after remote description is set
+    await this.processPendingCandidates();
+  }
+
+  async addIceCandidate(candidate: RTCIceCandidateInit): Promise<void> {
+    if (!this.peerConnection) {
+      this.pendingCandidates.push(candidate);
+      return;
+    }
+
+    if (!this.peerConnection.remoteDescription) {
+      this.pendingCandidates.push(candidate);
+      return;
+    }
+
+    try {
+      const iceCandidate = new RTCIceCandidate(candidate);
+      await this.peerConnection.addIceCandidate(iceCandidate);
+    } catch (error) {
+      console.error('[WebRTC] Failed to add ICE candidate:', error);
+      this.pendingCandidates.push(candidate);
+    }
+  }
+
+  private async processPendingCandidates(): Promise<void> {
+    if (this.pendingCandidates.length === 0) return;
+    if (!this.peerConnection) return;
+
+    const candidates = [...this.pendingCandidates];
+    this.pendingCandidates = [];
+
+    for (const candidate of candidates) {
+      if (!this.peerConnection) return;
+
+      try {
+        const iceCandidate = new RTCIceCandidate(candidate);
+        await this.peerConnection.addIceCandidate(iceCandidate);
+      } catch (error) {
+        console.error('[WebRTC] Failed to add pending ICE candidate:', error);
+      }
+    }
+  }
+
+  setMuted(muted: boolean): void {
+    if (!this.localStream) return;
+    const audioTracks = this.localStream.getAudioTracks();
+    audioTracks.forEach((track) => {
+      track.enabled = !muted;
+    });
+  }
+
+  isMuted(): boolean {
+    if (!this.localStream) return false;
+    const audioTracks = this.localStream.getAudioTracks();
+    return audioTracks.some((track) => !track.enabled);
+  }
+
+  /**
+   * Enable video - official replaceTrack approach
+   */
+  async enableVideo(): Promise<MediaStream> {
+    if (!this.peerConnection) throw new Error('PeerConnection not initialized');
+
+    console.log('[WebRTC] Enabling video...');
+
+    try {
+      // Get video stream
+      const videoStream = await mediaDevices.getUserMedia({
+        video: { facingMode: 'user', frameRate: 30 },
+        audio: false,
+      });
+
+      const videoTrack = videoStream.getVideoTracks()[0];
+
+      // Find the sender for video and replace the track
+      const senders = this.peerConnection.getSenders();
+      const videoSender = senders.find(s => s.track?.kind === 'video');
+
+      if (videoSender) {
+        await videoSender.replaceTrack(videoTrack);
+        console.log('[WebRTC] Video track replaced on existing sender');
+      } else {
+        // No existing video sender, add track
+        this.peerConnection.addTrack(videoTrack, this.localStream!);
+        console.log('[WebRTC] Video track added via addTrack');
+      }
+
+      // Update local stream
+      const newStream = new MediaStream();
+
+      if (this.localStream) {
+        this.localStream.getAudioTracks().forEach((track) => {
+          newStream.addTrack(track);
+        });
+        // Stop old video tracks
+        this.localStream.getVideoTracks().forEach((track) => {
+          track.stop();
+        });
+      }
+
+      newStream.addTrack(videoTrack);
+      this.localStream = newStream;
+
+      console.log('[WebRTC] Video enabled successfully');
+
+      return newStream;
+    } catch (error) {
+      console.error('[WebRTC] Failed to enable video:', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Disable video - official replaceTrack approach
+   */
+  async disableVideo(): Promise<MediaStream | null> {
+    if (!this.peerConnection) {
+      console.log('[WebRTC] disableVideo: No peer connection');
+      return null;
+    }
+    if (!this.localStream) {
+      console.log('[WebRTC] disableVideo: No local stream');
+      return null;
+    }
+
+    console.log('[WebRTC] Disabling video...');
+
+    // Find the sender for video and replace with null
+    const senders = this.peerConnection.getSenders();
+    const videoSender = senders.find(s => s.track?.kind === 'video');
+
+    if (videoSender) {
+      await videoSender.replaceTrack(null);
+      console.log('[WebRTC] Video track removed from sender');
+    }
+
+    // Stop video tracks
+    const videoTracks = this.localStream.getVideoTracks();
+    videoTracks.forEach((track) => {
+      track.stop();
+    });
+
+    // Create new stream with only audio
+    const newStream = new MediaStream();
+    this.localStream.getAudioTracks().forEach((track) => {
+      newStream.addTrack(track);
+    });
+
+    this.localStream = newStream;
+    console.log('[WebRTC] Video disabled successfully');
+
+    return newStream;
+  }
+
+  isVideoEnabled(): boolean {
+    if (!this.localStream) return false;
+    const videoTracks = this.localStream.getVideoTracks();
+    return videoTracks.length > 0 && videoTracks.some((track) => track.enabled);
+  }
+
+  getRemoteStream(): MediaStream | null {
+    return this.remoteStream;
+  }
+
+  getLocalStream(): MediaStream | null {
+    return this.localStream;
+  }
+
+  getPeerConnection(): RTCPeerConnection | null {
+    return this.peerConnection;
+  }
+
+  getSignalingState(): RTCSignalingState | null {
+    return this.peerConnection?.signalingState || null;
+  }
+
+  getIsInitiator(): boolean {
+    return this.isInitiator;
+  }
+
+  onEvent(handler: EventHandler): () => void {
+    this.eventHandlers.add(handler);
+    return () => {
+      this.eventHandlers.delete(handler);
+    };
+  }
+
+  private emit(event: WebRTCManagerEvent): void {
+    this.eventHandlers.forEach((handler) => {
+      try {
+        handler(event);
+      } catch (error) {
+        console.error('[WebRTC] Event handler error:', error);
+      }
+    });
+  }
+
+  // ========== ICE Restart 支持 ==========
+
+  /**
+   * 处理 ICE 连接状态变化
+   * 根据 W3C 规范: disconnected 状态可能间歇性触发并自发解决
+   * failed 状态表示需要 ICE restart
+   */
+  private handleIceConnectionStateChange(state: ConnectionState): void {
+    console.log('[WebRTC] ICE connection state:', state);
+
+    switch (state) {
+      case 'connected':        // 连接成功，重置重连状态
+        this.resetReconnectState();
+        break;
+
+      case 'disconnected':
+        // 临时断开，等待一段时间看是否自动恢复
+        this.scheduleDisconnectCheck();
+        break;
+
+      case 'failed':
+        // ICE 失败，尝试 ICE restart
+        this.attemptIceRestart();
+        break;
+
+      case 'closed':
+        this.clearReconnectTimers();
+        break;
+    }
+  }
+
+  /**
+   * 处理 PeerConnection 连接状态变化
+   */
+  private handleConnectionStateChange(state: ConnectionState): void {
+    console.log('[WebRTC] PeerConnection state:', state);
+
+    switch (state) {
+      case 'connected':
+        this.resetReconnectState();
+        break;
+
+      case 'disconnected':
+        // 等待短暂时间看是否自动恢复
+        this.scheduleDisconnectCheck();
+        break;
+
+      case 'failed':
+        // 连接完全失败
+        this.emit({ type: 'error', error: new Error('Connection failed') });
+        break;
+    }
+  }
+
+  /**
+   * 安排断开检查
+   * 给 disconnected 状态一个恢复窗口（5秒）
+   */
+  private scheduleDisconnectCheck(): void {
+    if (this.disconnectTimer) {
+      clearTimeout(this.disconnectTimer);
+    }
+
+    this.disconnectTimer = setTimeout(() => {
+      const pc = this.peerConnection;
+      if (!pc || this.disposed) return;
+
+      // 如果 5 秒后仍然是 disconnected，尝试 ICE restart
+      if (pc.iceConnectionState === 'disconnected' || pc.iceConnectionState === 'failed') {
+        console.log('[WebRTC] Connection still disconnected after 5s, attempting ICE restart');
+        this.attemptIceRestart();
+      }
+    }, 5000);
+  }
+
+  /**
+   * 尝试 ICE restart
+   * 参考: https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Session_lifetime#ice_restart
+   */
+  private async attemptIceRestart(): Promise<void> {
+    if (this.reconnectAttempts >= this.MAX_RECONNECT_ATTEMPTS) {
+      console.error('[WebRTC] Max reconnection attempts reached');
+      this.emit({ type: 'error', error: new Error('Max reconnection attempts reached') });
+      return;
+    }
+
+    const pc = this.peerConnection;
+    if (!pc || this.disposed) {
+      console.log('[WebRTC] Cannot restart ICE: PeerConnection not available');
+      return;
+    }
+
+    // 检查信令状态
+    if (pc.signalingState !== 'stable') {
+      console.log('[WebRTC] Cannot restart ICE: signaling state not stable:', pc.signalingState);
+      return;
+    }
+
+    this.reconnectAttempts++;
+    console.log(`[WebRTC] Attempting ICE restart (${this.reconnectAttempts}/${this.MAX_RECONNECT_ATTEMPTS})`);
+
+    try {
+      // 尝试使用 restartIce() API (现代浏览器支持)
+      // @ts-ignore
+      if (pc.restartIce) {
+        // @ts-ignore
+        pc.restartIce();
+        console.log('[WebRTC] restartIce() called');
+      }
+
+      // 创建新的 offer，触发 ICE restart
+      const offer = await pc.createOffer({ iceRestart: true });
+      await pc.setLocalDescription(offer);
+
+      console.log('[WebRTC] ICE restart offer created');
+
+      // 发送新的 offer 给对方
+      this.emit({ type: 'negotiationneeded', offer });
+    } catch (error) {
+      console.error('[WebRTC] ICE restart failed:', error);
+      this.emit({ type: 'error', error: error as Error });
+    }
+  }
+
+  /**
+   * 重置重连状态
+   */
+  private resetReconnectState(): void {
+    this.reconnectAttempts = 0;
+    this.clearReconnectTimers();
+  }
+
+  /**
+   * 清除重连定时器
+   */
+  private clearReconnectTimers(): void {
+    if (this.disconnectTimer) {
+      clearTimeout(this.disconnectTimer);
+      this.disconnectTimer = null;
+    }
+    if (this.reconnectTimer) {
+      clearTimeout(this.reconnectTimer);
+      this.reconnectTimer = null;
+    }
+  }
+
+  dispose(): void {
+    this.disposed = true;
+    this.eventHandlers.clear();
+    this.pendingCandidates = [];
+    this.clearReconnectTimers();
+
+    if (this.localStream) {
+      this.localStream.getTracks().forEach((track) => track.stop());
+      this.localStream = null;
+    }
+
+    if (this.remoteStream) {
+      this.remoteStream.getTracks().forEach((track) => track.stop());
+      this.remoteStream = null;
+    }
+
+    if (this.peerConnection) {
+      this.peerConnection.close();
+      this.peerConnection = null;
+    }
+  }
+}
+
+export const webrtcManager = new WebRTCManager();

src/services/webrtc/WebRTCManager.web.ts

@@ -0,0 +1,89 @@
+// WebRTCManager for Web platform (stub implementation)
+import type {
+  ICEServer,
+  ConnectionState,
+  WebRTCManagerEvent,
+} from './WebRTCManager';
+
+type EventHandler = (event: WebRTCManagerEvent) => void;
+
+class WebRTCManagerWeb {
+  private eventHandlers: Set<EventHandler> = new Set();
+  private disposed = false;
+
+  async initialize(iceServers: ICEServer[] = []): Promise<void> {
+    console.log('[WebRTC] WebRTC not supported on web platform');
+  }
+
+  async createLocalStream(voiceOnly = true): Promise<MediaStream | null> {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  async startCall(isInitiator: boolean): Promise<RTCSessionDescriptionInit | null> {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  async createOffer(): Promise<RTCSessionDescriptionInit | null> {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  async createAnswer(): Promise<RTCSessionDescriptionInit | null> {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  async createAnswerFromOffer(offer: RTCSessionDescriptionInit): Promise<RTCSessionDescriptionInit | null> {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  async setRemoteDescription(description: RTCSessionDescriptionInit): Promise<void> {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+  }
+
+  async addIceCandidate(candidate: RTCIceCandidateInit): Promise<void> {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+  }
+
+  setMuted(muted: boolean): void {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+  }
+
+  isMuted(): boolean {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return false;
+  }
+
+  getRemoteStream(): MediaStream | null {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  getLocalStream(): MediaStream | null {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  getPeerConnection(): RTCPeerConnection | null {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return null;
+  }
+
+  onEvent(handler: EventHandler): () => void {
+    console.warn('[WebRTC] WebRTC not supported on web platform');
+    return () => {
+      this.eventHandlers.delete(handler);
+    };
+  }
+
+  dispose(): void {
+    this.disposed = true;
+    this.eventHandlers.clear();
+    console.log('[WebRTC] WebRTC disposed on web platform');
+  }
+}
+
+export const webrtcManager = new WebRTCManagerWeb();

src/services/webrtc/index.ts

@@ -0,0 +1,2 @@
+export { webrtcManager } from './WebRTCManager';
+export type { ICEServer, ConnectionState, WebRTCManagerEvent } from './WebRTCManager';

src/stores/authStore.ts

@@ -14,7 +14,8 @@ import AsyncStorage from '@react-native-async-storage/async-storage';
 import { create } from 'zustand';
 import { User } from '../types';
 import { authService, resolveAuthApiError, LoginRequest, RegisterRequest } from '../services';
-import { sseService } from '../services/sseService';
+import { wsService } from '../services/wsService';
+import { callStore } from './callStore';
 import {
   initDatabase,
   closeDatabase,
@@ -95,7 +96,8 @@ function resolveLoginError(error: any): string {
 // ── 启动 SSE 实时服务 ──
 async function startRealtime(): Promise<void> {
   try {
-    await sseService.start();
+    await wsService.start();
+    callStore.getState().initCall();
   } catch (error) {
     console.error('[AuthStore] 启动 SSE 服务失败:', error);
   }
@@ -212,7 +214,7 @@ export const useAuthStore = create<AuthState>((set) => ({
       // 1. 通知服务端（Token 清理在 authService 内部完成）
       await authService.logout();
       // 2. 停止 SSE
-      sseService.stop();
+      wsService.stop();
       // 3. 清除 DB 中的用户缓存（DB 此时一定已初始化）
       await clearCurrentUserCache().catch(() => {});
       // 4. 关闭数据库连接

src/stores/baseManager.ts

@@ -0,0 +1,127 @@
+/**
+ * BaseManager - 通用 Manager 基类
+ *
+ * 提取自 postManager/groupManager/userManager 的重复逻辑：
+ * - 请求去重 (dedupe)
+ * - 缓存条目管理 (CacheEntry)
+ * - 过期检查 (isExpired)
+ */
+
+import { CacheBus, CacheEvent } from './cacheBus';
+
+/** 缓存条目结构 */
+export interface CacheEntry<T> {
+  data: T;
+  timestamp: number;
+  ttl: number;
+}
+
+/** 创建缓存条目 */
+export function createCacheEntry<T>(data: T, ttl: number): CacheEntry<T> {
+  return { data, timestamp: Date.now(), ttl };
+}
+
+/** 检查缓存是否过期 */
+export function isCacheExpired(entry: CacheEntry<any>): boolean {
+  return Date.now() - entry.timestamp > entry.ttl;
+}
+
+/**
+ * 通用 Manager 基类
+ *
+ * 子类只需关注业务逻辑，无需重复实现缓存和去重机制
+ */
+export abstract class BaseManager<
+  TSnapshot,
+  TEvent extends CacheEvent = CacheEvent
+> extends CacheBus<TSnapshot, TEvent> {
+  /** 待处理请求 Map，用于去重 */
+  protected pendingRequests = new Map<string, Promise<any>>();
+
+  /**
+   * 请求去重：相同 key 的并发请求会被合并为一个
+   * @param key 唯一标识
+   * @param fetcher 实际请求函数
+   */
+  protected async dedupe<T>(key: string, fetcher: () => Promise<T>): Promise<T> {
+    const pending = this.pendingRequests.get(key) as Promise<T> | undefined;
+    if (pending) return pending;
+
+    const request = fetcher().finally(() => {
+      this.pendingRequests.delete(key);
+    });
+    this.pendingRequests.set(key, request);
+    return request;
+  }
+
+  /** 清除所有待处理请求 */
+  protected clearPendingRequests(): void {
+    this.pendingRequests.clear();
+  }
+}
+
+/**
+ * 带缓存的 Manager 基类
+ *
+ * 进一步封装内存缓存逻辑
+ */
+export abstract class CachedManager<
+  TSnapshot,
+  TEvent extends CacheEvent = CacheEvent
+> extends BaseManager<TSnapshot, TEvent> {
+  /** 内存缓存 Map */
+  protected memoryCache = new Map<string, CacheEntry<any>>();
+
+  /**
+   * 获取缓存
+   * @param key 缓存 key
+   * @returns 缓存数据，过期或不存在返回 null
+   */
+  protected getFromCache<T>(key: string): T | null {
+    const entry = this.memoryCache.get(key) as CacheEntry<T> | undefined;
+    if (!entry) return null;
+    if (isCacheExpired(entry)) {
+      this.memoryCache.delete(key);
+      return null;
+    }
+    return entry.data;
+  }
+
+  /**
+   * 设置缓存
+   * @param key 缓存 key
+   * @param data 数据
+   * @param ttl 过期时间（毫秒）
+   */
+  protected setCache<T>(key: string, data: T, ttl: number): void {
+    this.memoryCache.set(key, createCacheEntry(data, ttl));
+  }
+
+  /**
+   * 检查缓存是否存在且未过期
+   */
+  protected hasValidCache(key: string): boolean {
+    const entry = this.memoryCache.get(key);
+    if (!entry) return false;
+    return !isCacheExpired(entry);
+  }
+
+  /**
+   * 检查缓存是否存在但已过期
+   */
+  protected hasExpiredCache(key: string): boolean {
+    const entry = this.memoryCache.get(key);
+    if (!entry) return false;
+    return isCacheExpired(entry);
+  }
+
+  /** 清除所有缓存 */
+  protected clearCache(): void {
+    this.memoryCache.clear();
+  }
+
+  /** 清除指定 key 的缓存 */
+  protected deleteCache(key: string): void {
+    this.memoryCache.delete(key);
+  }
+}

src/stores/callStore.ts

@@ -0,0 +1,824 @@
+import { create } from 'zustand';
+import { MediaStream } from 'react-native-webrtc';
+import {
+  wsService,
+  WSCallIncomingMessage,
+  WSCallSDPMessage,
+  WSCallICEMessage,
+  WSErrorMessage,
+} from '../services/wsService';
+import { webrtcManager, ICEServer } from '../services/webrtc';
+import { useAuthStore } from './authStore';
+import { useUserStore } from './userStore';
+import { userManager } from './userManager';
+
+export type CallStatus = 
+  | 'idle'           // 空闲状态
+  | 'calling'        // 正在呼出（已发送邀请，等待对方响应）
+  | 'ringing'        // 来电响铃中
+  | 'connecting'     // 正在建立连接（WebRTC 协商中）
+  | 'connected'      // 已接通
+  | 'reconnecting'   // 网络断开，正在重连
+  | 'ended'          // 已结束
+  | 'failed';        // 连接失败
+
+export type CallType = 'voice' | 'video';
+
+export interface CallSession {
+  id: string;
+  conversationId: string;
+  peerId: string;
+  peerName?: string;
+  peerAvatar?: string | null;
+  status: CallStatus;
+  callType: CallType;
+  startedAt?: number;
+  duration: number;
+  isMuted: boolean;
+  isSpeakerOn: boolean;
+  isVideoEnabled: boolean;
+  isPeerVideoEnabled: boolean;
+  isInitiator: boolean;
+}
+
+export interface IncomingCallInfo {
+  callId: string;
+  conversationId: string;
+  callerId: string;
+  callerName?: string;
+  callerAvatar?: string | null;
+  callType: string;
+  iceServers: ICEServer[];
+  receivedAt: number;
+  lifetime?: number;
+}
+
+interface CallState {
+  currentCall: CallSession | null;
+  incomingCall: IncomingCallInfo | null;
+  callDuration: number;
+  peerStream: MediaStream | null;
+  localStream: MediaStream | null;
+  isMinimized: boolean;
+
+  initCall: () => () => void;
+  startCall: (
+    conversationId: string,
+    calleeId: string,
+    calleeInfo?: { nickname?: string; username?: string; avatar?: string | null },
+    callType?: CallType
+  ) => Promise<void>;
+  acceptCall: () => Promise<void>;
+  rejectCall: () => void;
+  endCall: (reason?: string) => Promise<void>;
+  toggleMute: () => void;
+  toggleSpeaker: () => void;
+  toggleMinimize: () => void;
+  toggleVideo: () => Promise<void>;
+  setVideoEnabled: (enabled: boolean) => Promise<void>;
+}
+
+// Module-level variables for timers
+let durationTimer: ReturnType<typeof setInterval> | null = null;
+let callTimeoutTimer: ReturnType<typeof setTimeout> | null = null;
+let initCallUnsub: (() => void) | null = null;
+let unsubInvited: (() => void) | null = null;
+let pendingOffer: { callId: string; sdp: string } | null = null;
+let rtcUnsubscribe: (() => void) | null = null;  // WebRTC event subscription
+
+// Constants
+const CALL_LIFETIME_MS = 55000;
+const CALL_TIMEOUT_MS = 115000;
+const IGNORE_CALL_ID_TTL = 30000;
+
+// Track processed call IDs to prevent duplicates
+const processedCallIds = new Map<string, number>();
+
+function cleanupProcessedCallIds() {
+  const now = Date.now();
+  for (const [callId, timestamp] of processedCallIds) {
+    if (now - timestamp > IGNORE_CALL_ID_TTL) {
+      processedCallIds.delete(callId);
+    }
+  }
+}
+
+/**
+ * Unified WebRTC event handler
+ * This is called from both initiator and receiver paths
+ */
+function setupWebRTCEvents(callId: string, myUserId: string): void {
+  // Clean up any existing subscription
+  if (rtcUnsubscribe) {
+    rtcUnsubscribe();
+    rtcUnsubscribe = null;
+  }
+
+  rtcUnsubscribe = webrtcManager.onEvent((event) => {
+    switch (event.type) {
+      case 'icecandidate':
+        if (event.candidate) {
+          wsService.sendCallICE(callId, JSON.stringify(event.candidate.toJSON()));
+        }
+        break;
+
+      case 'remotestream':
+        handleRemoteStream(event.stream);
+        break;
+
+      case 'negotiationneeded':
+        handleNegotiationNeeded(callId, event.offer);
+        break;
+
+      case 'connectionstatechange':
+        handleConnectionStateChange(event.state);
+        break;
+
+      case 'error':
+        console.error('[CallStore] WebRTC error:', event.error);
+        break;
+    }
+  });
+}
+
+/**
+ * Handle remote stream with video track detection
+ */
+function handleRemoteStream(stream: MediaStream): void {
+  callStore.setState({ peerStream: stream });
+
+  // Detect video tracks in remote stream
+  const videoTracks = stream.getVideoTracks();
+  const hasPeerVideo = videoTracks.length > 0 && videoTracks.some((t) => t.enabled);
+
+  console.log('[CallStore] Remote stream received, hasVideo:', hasPeerVideo, 'videoTracks:', videoTracks.length);
+
+  callStore.setState((s) => ({
+    currentCall: s.currentCall
+      ? { ...s.currentCall, isPeerVideoEnabled: hasPeerVideo }
+      : null,
+  }));
+}
+
+/**
+ * Handle negotiation needed event - send offer to peer
+ */
+function handleNegotiationNeeded(callId: string, offer: RTCSessionDescriptionInit): void {
+  console.log('[CallStore] Negotiation needed, sending offer');
+  wsService.sendCallSDP(callId, 'offer', offer.sdp || '');
+}
+
+  /**
+   * Handle connection state change with enhanced state machine
+   */
+  function handleConnectionStateChange(state: string): void {
+    console.log('[CallStore] Connection state changed:', state);
+
+    const { currentCall } = callStore.getState();
+    if (!currentCall) return;
+
+    switch (state) {
+      case 'connected':
+        // 连接成功，开始计时
+        const now = Date.now();
+        callStore.setState((s) => ({
+          currentCall: s.currentCall
+            ? { ...s.currentCall, status: 'connected', startedAt: now }
+            : null,
+        }));
+
+        if (durationTimer) clearInterval(durationTimer);
+        durationTimer = setInterval(() => {
+          callStore.setState((s) => ({ callDuration: s.callDuration + 1 }));
+        }, 1000);
+        break;
+
+      case 'disconnected':
+        // 临时断开，进入重连状态
+        if (currentCall.status === 'connected') {
+          callStore.setState((s) => ({
+            currentCall: s.currentCall
+              ? { ...s.currentCall, status: 'reconnecting' }
+              : null,
+          }));
+        }
+        break;
+
+      case 'failed':
+        // 连接失败
+        if (currentCall.status === 'connected' || currentCall.status === 'reconnecting') {
+          callStore.getState().endCall('connection_failed');
+        } else if (currentCall.status === 'connecting') {
+          // 初始连接失败
+          callStore.getState().endCall('connection_failed');
+        }
+        break;
+
+      case 'closed':
+        // 连接关闭
+        if (currentCall.status !== 'ended' && currentCall.status !== 'failed') {
+          callStore.getState().endCall('connection_closed');
+        }
+        break;
+    }
+  }
+
+/**
+ * Handle incoming SDP offer with Glare handling
+ */
+async function handleIncomingOffer(msg: WSCallSDPMessage, myUserId: string): Promise<void> {
+  let pc = webrtcManager.getPeerConnection();
+  if (!pc) {
+    // Cache offer for later processing
+    pendingOffer = { callId: msg.call_id, sdp: msg.payload.sdp };
+    console.log('[CallStore] Caching pending offer, PeerConnection not ready yet');
+    return;
+  }
+
+  let signalingState = pc.signalingState;
+  console.log('[CallStore] Received offer, signalingState:', signalingState);
+
+  // Glare handling: if we're not in stable state, we have a conflict
+  if (signalingState !== 'stable') {
+    const remoteUserId = msg.from_id;
+
+    // Compare user IDs to determine who wins
+    // Higher user ID wins the negotiation
+    if (myUserId > remoteUserId) {
+      console.log('[CallStore] Glare: I win (my ID > remote ID), ignoring incoming offer');
+      return;
+    }
+
+    console.log('[CallStore] Glare: Remote wins (remote ID > my ID), rolling back');
+
+    // Rollback to stable state
+    try {
+      await webrtcManager.rollback();
+    } catch (err) {
+      console.error('[CallStore] Rollback failed:', err);
+      // If rollback fails because we're already stable, that's fine - just proceed
+      if (pc.signalingState !== 'stable') {
+        return;
+      }
+    }
+
+    // Re-check state after rollback
+    signalingState = pc.signalingState;
+    if (signalingState !== 'stable') {
+      console.warn('[CallStore] Not stable after rollback, state:', signalingState);
+      return;
+    }
+  }
+
+  pendingOffer = null;
+
+  // Set remote description and create answer
+  try {
+    await webrtcManager.setRemoteDescription({
+      type: msg.payload.sdp_type as 'offer' | 'answer',
+      sdp: msg.payload.sdp,
+    });
+
+    const answer = await webrtcManager.createAnswer();
+    wsService.sendCallSDP(msg.call_id, 'answer', answer.sdp || '');
+  } catch (err) {
+    console.error('[CallStore] Failed to handle incoming offer:', err);
+  }
+}
+
+/**
+ * Handle incoming SDP answer
+ */
+async function handleIncomingAnswer(msg: WSCallSDPMessage): Promise<void> {
+  const pc = webrtcManager.getPeerConnection();
+  if (!pc) return;
+
+  const signalingState = pc.signalingState;
+  console.log('[CallStore] Received answer, signalingState:', signalingState);
+
+  if (signalingState !== 'have-local-offer') {
+    console.warn('[CallStore] Ignoring answer, signaling state is', signalingState);
+    return;
+  }
+
+  try {
+    await webrtcManager.setRemoteDescription({
+      type: msg.payload.sdp_type as 'offer' | 'answer',
+      sdp: msg.payload.sdp,
+    });
+  } catch (err) {
+    console.error('[CallStore] Failed to set remote description from answer:', err);
+  }
+}
+
+/**
+ * Clean up all resources
+ */
+function cleanupResources(): void {
+  if (callTimeoutTimer) {
+    clearTimeout(callTimeoutTimer);
+    callTimeoutTimer = null;
+  }
+  if (durationTimer) {
+    clearInterval(durationTimer);
+    durationTimer = null;
+  }
+  if (rtcUnsubscribe) {
+    rtcUnsubscribe();
+    rtcUnsubscribe = null;
+  }
+  pendingOffer = null;
+}
+
+export const callStore = create<CallState>((set, get) => ({
+  currentCall: null,
+  incomingCall: null,
+  callDuration: 0,
+  peerStream: null,
+  localStream: null,
+  isMinimized: false,
+
+  initCall: () => {
+    // Prevent duplicate handler registration
+    if (initCallUnsub) {
+      initCallUnsub();
+      initCallUnsub = null;
+    }
+
+    const unsubs: Array<() => void> = [];
+
+    unsubs.push(
+      wsService.on('call_incoming', async (msg) => {
+        cleanupProcessedCallIds();
+
+        if (processedCallIds.has(msg.call_id)) {
+          console.log('[CallStore] Ignoring already processed call:', msg.call_id);
+          return;
+        }
+
+        const { currentCall, incomingCall } = get();
+        if (incomingCall) {
+          wsService.sendCallBusy(msg.call_id);
+          processedCallIds.set(msg.call_id, Date.now());
+          return;
+        }
+        if (currentCall && currentCall.status !== 'idle') {
+          wsService.sendCallBusy(msg.call_id);
+          processedCallIds.set(msg.call_id, Date.now());
+          return;
+        }
+
+        // Check lifetime expiry
+        const callAge = Date.now() - msg.created_at;
+        const lifetime = msg.lifetime || 60000;
+        if (callAge > lifetime - 5000) {
+          console.log('[CallStore] Ignoring stale incoming call, age:', callAge);
+          wsService.sendCallReject(msg.call_id);
+          processedCallIds.set(msg.call_id, Date.now());
+          return;
+        }
+
+        // Fetch caller info
+        let caller: { nickname?: string; username?: string; avatar?: string | null } | null =
+          useUserStore.getState().userCache[msg.caller_id];
+        if (!caller) {
+          try {
+            const fetchedCaller = await userManager.getUserById(msg.caller_id);
+            if (fetchedCaller) {
+              caller = {
+                nickname: fetchedCaller.nickname,
+                username: fetchedCaller.username,
+                avatar: fetchedCaller.avatar,
+              };
+            }
+          } catch (err) {
+            console.log('[CallStore] Failed to fetch caller info:', err);
+          }
+        }
+        const callerName = caller?.nickname || caller?.username || msg.caller_id;
+
+        set({
+          incomingCall: {
+            callId: msg.call_id,
+            conversationId: msg.conversation_id,
+            callerId: msg.caller_id,
+            callerName,
+            callerAvatar: caller?.avatar,
+            callType: msg.call_type,
+            iceServers: msg.ice_servers || [],
+            receivedAt: Date.now(),
+            lifetime: msg.lifetime,
+          },
+        });
+
+        processedCallIds.set(msg.call_id, Date.now());
+
+        // Set timeout based on lifetime
+        if (callTimeoutTimer) clearTimeout(callTimeoutTimer);
+        const remainingTime = Math.max(lifetime - callAge - 1000, 5000);
+        callTimeoutTimer = setTimeout(() => {
+          const { incomingCall: ic } = get();
+          if (ic?.callId === msg.call_id) {
+            console.log('[CallStore] Incoming call timeout');
+            wsService.sendCallReject(msg.call_id);
+            processedCallIds.set(msg.call_id, Date.now());
+            set({ incomingCall: null });
+          }
+        }, remainingTime);
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_accepted', async (msg) => {
+        const { currentCall } = get();
+        if (!currentCall || currentCall.id !== msg.call_id) return;
+
+        if (!currentCall.isInitiator) {
+          console.log('[CallStore] Ignoring call_accepted, we are not the initiator');
+          return;
+        }
+
+        if (callTimeoutTimer) {
+          clearTimeout(callTimeoutTimer);
+          callTimeoutTimer = null;
+        }
+
+        const myUserId = useAuthStore.getState().currentUser?.id || '';
+
+        try {
+          const isVideoCall = currentCall.callType === 'video';
+          await webrtcManager.initialize(msg.ice_servers || []);
+          const newStream = await webrtcManager.createLocalStream(!isVideoCall);
+
+          set({ localStream: newStream });
+
+          // Setup unified WebRTC event handler
+          setupWebRTCEvents(currentCall.id, myUserId);
+
+          // Start call with transceiver-based approach
+          const offer = await webrtcManager.startCall(true, currentCall.callType);
+          if (offer) {
+            wsService.sendCallSDP(currentCall.id, 'offer', offer.sdp || '');
+          }
+        } catch (err) {
+          console.error('[CallStore] call_accepted error:', err);
+          get().endCall('connection_failed');
+        }
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_rejected', (msg) => {
+        const { currentCall } = get();
+        if (currentCall?.id !== msg.call_id) return;
+        console.log('[CallStore] Call rejected');
+        get().endCall('rejected');
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_busy', (msg) => {
+        const { currentCall } = get();
+        if (currentCall?.id !== msg.call_id) return;
+        console.log('[CallStore] Call busy');
+        get().endCall('busy');
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_ended', (msg) => {
+        const { currentCall, incomingCall } = get();
+
+        processedCallIds.set(msg.call_id, Date.now());
+
+        if (currentCall?.id === msg.call_id) {
+          console.log('[CallStore] Call ended, duration:', msg.duration);
+          get().endCall('ended');
+          return;
+        }
+
+        if (incomingCall?.callId === msg.call_id) {
+          console.log('[CallStore] Incoming call cancelled by caller');
+          if (callTimeoutTimer) {
+            clearTimeout(callTimeoutTimer);
+            callTimeoutTimer = null;
+          }
+          set({ incomingCall: null });
+        }
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_answered_elsewhere', (msg) => {
+        const { incomingCall } = get();
+        if (incomingCall?.callId === msg.call_id) {
+          console.log('[CallStore] Call answered on another device');
+          processedCallIds.set(msg.call_id, Date.now());
+          if (callTimeoutTimer) {
+            clearTimeout(callTimeoutTimer);
+            callTimeoutTimer = null;
+          }
+          set({ incomingCall: null });
+        }
+      })
+    );
+
+    unsubs.push(
+      wsService.on('error', (msg: WSErrorMessage) => {
+        const { currentCall, incomingCall } = get();
+        console.log('[CallStore] Server error:', msg.code, msg.message);
+
+        if (msg.code === 'callee_offline') {
+          if (currentCall && currentCall.status === 'ringing') {
+            console.log('[CallStore] Callee is offline');
+            get().endCall('callee_offline');
+          }
+        }
+
+        if (msg.code === 'call_already_answered') {
+          if (incomingCall) {
+            console.log('[CallStore] Call already answered on another device');
+            processedCallIds.set(incomingCall.callId, Date.now());
+            if (callTimeoutTimer) {
+              clearTimeout(callTimeoutTimer);
+              callTimeoutTimer = null;
+            }
+            set({ incomingCall: null });
+          }
+        }
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_sdp', async (msg: WSCallSDPMessage) => {
+        const { currentCall } = get();
+        if (!currentCall || currentCall.id !== msg.call_id) return;
+
+        const myUserId = useAuthStore.getState().currentUser?.id || '';
+        if (msg.from_id === myUserId) return;
+
+        if (msg.payload.sdp_type === 'offer') {
+          await handleIncomingOffer(msg, myUserId);
+        } else if (msg.payload.sdp_type === 'answer') {
+          await handleIncomingAnswer(msg);
+        }
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_ice', (msg: WSCallICEMessage) => {
+        const { currentCall } = get();
+        if (!currentCall || currentCall.id !== msg.call_id) return;
+
+        const myUserId = useAuthStore.getState().currentUser?.id || '';
+        if (msg.from_id === myUserId) return;
+
+        try {
+          const candidate = typeof msg.payload.candidate === 'string'
+            ? JSON.parse(msg.payload.candidate)
+            : msg.payload.candidate;
+          webrtcManager.addIceCandidate(candidate);
+        } catch (err) {
+          console.error('[CallStore] call_ice error:', err);
+        }
+      })
+    );
+
+    unsubs.push(
+      wsService.on('call_peer_muted', (msg) => {
+        console.log('[CallStore] Peer muted:', msg.user_id, msg.muted);
+      })
+    );
+
+    const cleanup = () => {
+      cleanupResources();
+      if (unsubInvited) {
+        unsubInvited();
+        unsubInvited = null;
+      }
+      unsubs.forEach((unsub) => unsub());
+      initCallUnsub = null;
+    };
+    initCallUnsub = cleanup;
+    return cleanup;
+  },
+
+  startCall: async (
+    conversationId: string,
+    calleeId: string,
+    calleeInfo?: { nickname?: string; username?: string; avatar?: string | null },
+    callType: CallType = 'voice'
+  ) => {
+    const { currentCall } = get();
+    if (currentCall && currentCall.status !== 'idle') {
+      console.warn('[CallStore] Already in a call');
+      return;
+    }
+
+    const myUserId = useAuthStore.getState().currentUser?.id;
+    if (!myUserId) {
+      console.error('[CallStore] Not logged in');
+      return;
+    }
+
+    const cachedCallee = useUserStore.getState().userCache[calleeId];
+    const callee = calleeInfo || cachedCallee;
+    const calleeName = callee?.nickname || callee?.username || calleeId;
+
+    set({
+      currentCall: {
+        id: '',
+        conversationId,
+        peerId: calleeId,
+        peerName: calleeName,
+        peerAvatar: callee?.avatar,
+        callType,
+        status: 'calling',  // 改为 'calling' 表示正在呼出
+        duration: 0,
+        isMuted: false,
+        isSpeakerOn: false,
+        isVideoEnabled: callType === 'video',
+        isPeerVideoEnabled: false,
+        isInitiator: true,
+      },
+    });
+
+    wsService.sendCallInvite(conversationId, calleeId, callType);
+
+    if (unsubInvited) {
+      unsubInvited();
+    }
+    unsubInvited = wsService.on('call_invited', (msg) => {
+      set((s) => ({
+        currentCall: s.currentCall
+          ? { ...s.currentCall, id: msg.call_id }
+          : null,
+      }));
+    });
+
+    if (callTimeoutTimer) clearTimeout(callTimeoutTimer);
+    callTimeoutTimer = setTimeout(() => {
+      const { currentCall: cc } = get();
+      // 只有在 'calling' 状态（呼出中）才超时
+      if (cc && cc.status === 'calling') {
+        console.warn('[CallStore] Call timeout');
+        get().endCall('timeout');
+      }
+    }, CALL_TIMEOUT_MS);
+  },
+
+  acceptCall: async () => {
+    const { incomingCall } = get();
+    if (!incomingCall) return;
+
+    console.log('[CallStore] acceptCall, incomingCall.callType:', incomingCall.callType);
+
+    if (callTimeoutTimer) {
+      clearTimeout(callTimeoutTimer);
+      callTimeoutTimer = null;
+    }
+
+    const isVideoCall = incomingCall.callType === 'video';
+    console.log('[CallStore] acceptCall, isVideoCall:', isVideoCall);
+    const myUserId = useAuthStore.getState().currentUser?.id || '';
+
+    set({
+      currentCall: {
+        id: incomingCall.callId,
+        conversationId: incomingCall.conversationId,
+        peerId: incomingCall.callerId,
+        peerName: incomingCall.callerName,
+        peerAvatar: incomingCall.callerAvatar,
+        callType: incomingCall.callType as CallType,
+        status: 'connecting',
+        duration: 0,
+        isMuted: false,
+        isSpeakerOn: false,
+        isVideoEnabled: isVideoCall,
+        isPeerVideoEnabled: isVideoCall,
+        isInitiator: false,
+      },
+      incomingCall: null,
+    });
+
+    wsService.sendCallAnswer(incomingCall.callId);
+
+    try {
+      await webrtcManager.initialize(incomingCall.iceServers);
+      const newStream = await webrtcManager.createLocalStream(!isVideoCall);
+
+      set({ localStream: newStream });
+
+      // Setup unified WebRTC event handler
+      setupWebRTCEvents(incomingCall.callId, myUserId);
+
+      // Start call (non-initiator, will wait for offer)
+      await webrtcManager.startCall(false, incomingCall.callType as CallType);
+
+      // Note: For non-initiator, we don't create an offer here.
+      // We wait for the initiator's offer via handleIncomingOffer.
+    } catch (err) {
+      console.error('[CallStore] Failed to accept call:', err);
+      get().endCall('connection_failed');
+    }
+  },
+
+  rejectCall: () => {
+    const { incomingCall } = get();
+    if (!incomingCall) return;
+
+    if (callTimeoutTimer) {
+      clearTimeout(callTimeoutTimer);
+      callTimeoutTimer = null;
+    }
+
+    wsService.sendCallReject(incomingCall.callId);
+    set({ incomingCall: null });
+  },
+
+  endCall: async (reason = 'ended') => {
+    const { currentCall } = get();
+    if (!currentCall) return;
+
+    cleanupResources();
+
+    if (unsubInvited) {
+      unsubInvited();
+      unsubInvited = null;
+    }
+
+    const callId = currentCall.id;
+
+    set({
+      currentCall: null,
+      callDuration: 0,
+      peerStream: null,
+      localStream: null,
+    });
+
+    webrtcManager.dispose();
+
+    if (callId && reason !== 'ended') {
+      wsService.sendCallEnd(callId, reason);
+    }
+  },
+
+  toggleMute: () => {
+    const { currentCall } = get();
+    if (!currentCall) return;
+
+    const newMuted = !currentCall.isMuted;
+    webrtcManager.setMuted(newMuted);
+    if (currentCall.id) {
+      wsService.sendCallMute(currentCall.id, newMuted);
+    }
+    set((s) => ({
+      currentCall: s.currentCall ? { ...s.currentCall, isMuted: newMuted } : null,
+    }));
+  },
+
+  toggleSpeaker: () => {
+    const { currentCall } = get();
+    if (!currentCall) return;
+    set((s) => ({
+      currentCall: s.currentCall
+        ? { ...s.currentCall, isSpeakerOn: !s.currentCall.isSpeakerOn }
+        : null,
+    }));
+  },
+
+  toggleMinimize: () => {
+    set((s) => ({ isMinimized: !s.isMinimized }));
+  },
+
+  toggleVideo: async () => {
+    const { currentCall } = get();
+    if (!currentCall) return;
+
+    const newVideoEnabled = !currentCall.isVideoEnabled;
+    await get().setVideoEnabled(newVideoEnabled);
+  },
+
+  setVideoEnabled: async (enabled: boolean) => {
+    const { currentCall } = get();
+    if (!currentCall) return;
+
+    try {
+      if (enabled) {
+        const newStream = await webrtcManager.enableVideo();
+        set({ localStream: newStream });
+      } else {
+        const newStream = await webrtcManager.disableVideo();
+        set({ localStream: newStream });
+      }
+
+      set((s) => ({
+        currentCall: s.currentCall
+          ? { ...s.currentCall, isVideoEnabled: enabled, callType: enabled ? 'video' : 'voice' }
+          : null,
+      }));
+    } catch (err) {
+      console.error('[CallStore] Failed to toggle video:', err);
+    }
+  },
+}));

src/stores/groupListSources.ts

@@ -0,0 +1,301 @@
+/**
+ * 群组列表数据源抽象：游标、偏移分页实现同一契约，GroupManager 只依赖接口。
+ */
+
+import {
+  GroupResponse,
+  GroupMemberResponse,
+  GroupListResponse,
+  GroupMemberListResponse,
+  CursorPaginationRequest,
+} from '../types/dto';
+import { groupService } from '../services/groupService';
+import { getAllGroupsCache, getGroupMembersCache } from '../services/database';
+
+export const GROUP_LIST_PAGE_SIZE = 20;
+export const GROUP_MEMBER_LIST_PAGE_SIZE = 50;
+
+// ==================== 群组列表数据源 ====================
+
+/** 单次拉取结果（一页或一批） */
+export interface GroupListPage {
+  items: GroupResponse[];
+  /** 在当前源上是否还能再 loadNext 一页 */
+  hasMore: boolean;
+}
+
+/**
+ * 分页式群组列表源：restart 后开始新序列；首次 loadNext 为第一页，之后为后续页。
+ */
+export interface IGroupListPagedSource {
+  restart(): void;
+  loadNext(): Promise<GroupListPage>;
+  /** 至少成功 loadNext 过一次且仍有下一页时为 true */
+  readonly hasMore: boolean;
+}
+
+/**
+ * 远端群组列表（游标分页）
+ */
+export class NetworkCursorGroupListPagedSource implements IGroupListPagedSource {
+  private nextCursor: string | null = null;
+  private hasMoreAfterLastLoad = false;
+  private loadedOnce = false;
+  private readonly pageSize: number;
+
+  constructor(pageSize: number = GROUP_LIST_PAGE_SIZE) {
+    this.pageSize = pageSize;
+  }
+
+  restart(): void {
+    this.nextCursor = null;
+    this.hasMoreAfterLastLoad = false;
+    this.loadedOnce = false;
+  }
+
+  get hasMore(): boolean {
+    return this.loadedOnce && this.hasMoreAfterLastLoad;
+  }
+
+  async loadNext(): Promise<GroupListPage> {
+    const params: CursorPaginationRequest = {
+      cursor: this.nextCursor ?? '',
+      page_size: this.pageSize,
+    };
+
+    const result = await groupService.getGroupsCursor(params);
+
+    this.hasMoreAfterLastLoad = result.has_more ?? false;
+    this.nextCursor = result.next_cursor ?? null;
+    this.loadedOnce = true;
+
+    return { items: result.list ?? [], hasMore: this.hasMoreAfterLastLoad };
+  }
+}
+
+/**
+ * 远端群组列表（偏移分页）
+ */
+export class NetworkOffsetGroupListPagedSource implements IGroupListPagedSource {
+  private nextPage = 1;
+  private hasMoreAfterLastLoad = false;
+  private loadedOnce = false;
+  private readonly pageSize: number;
+
+  constructor(pageSize: number = GROUP_LIST_PAGE_SIZE) {
+    this.pageSize = pageSize;
+  }
+
+  restart(): void {
+    this.nextPage = 1;
+    this.hasMoreAfterLastLoad = false;
+    this.loadedOnce = false;
+  }
+
+  get hasMore(): boolean {
+    return this.loadedOnce && this.hasMoreAfterLastLoad;
+  }
+
+  async loadNext(): Promise<GroupListPage> {
+    const result = await groupService.getGroups(this.nextPage, this.pageSize);
+
+    const items = result.list ?? [];
+    const totalPages = result.total_pages ?? 1;
+
+    this.hasMoreAfterLastLoad = this.nextPage < totalPages;
+    this.nextPage++;
+    this.loadedOnce = true;
+
+    return { items, hasMore: this.hasMoreAfterLastLoad };
+  }
+}
+
+/**
+ * SQLite 群组列表缓存（单批，无后续页）
+ */
+export class SqliteGroupListPagedSource implements IGroupListPagedSource {
+  private consumed = false;
+
+  restart(): void {
+    this.consumed = false;
+  }
+
+  get hasMore(): boolean {
+    return false;
+  }
+
+  async loadNext(): Promise<GroupListPage> {
+    if (this.consumed) {
+      return { items: [], hasMore: false };
+    }
+    this.consumed = true;
+    try {
+      const items = await getAllGroupsCache();
+      return { items, hasMore: false };
+    } catch (e) {
+      console.warn('[SqliteGroupListPagedSource] 读取群组列表缓存失败:', e);
+      return { items: [], hasMore: false };
+    }
+  }
+}
+
+// ==================== 群组成员列表数据源 ====================
+
+/** 成员列表单次拉取结果 */
+export interface GroupMemberListPage {
+  items: GroupMemberResponse[];
+  hasMore: boolean;
+}
+
+/**
+ * 分页式群组成员列表源
+ */
+export interface IGroupMemberListPagedSource {
+  restart(): void;
+  loadNext(): Promise<GroupMemberListPage>;
+  readonly hasMore: boolean;
+}
+
+/**
+ * 远端群组成员列表（游标分页）
+ */
+export class NetworkCursorGroupMemberListPagedSource implements IGroupMemberListPagedSource {
+  private nextCursor: string | null = null;
+  private hasMoreAfterLastLoad = false;
+  private loadedOnce = false;
+  private readonly pageSize: number;
+  private readonly groupId: string;
+
+  constructor(groupId: string, pageSize: number = GROUP_MEMBER_LIST_PAGE_SIZE) {
+    this.groupId = groupId;
+    this.pageSize = pageSize;
+  }
+
+  restart(): void {
+    this.nextCursor = null;
+    this.hasMoreAfterLastLoad = false;
+    this.loadedOnce = false;
+  }
+
+  get hasMore(): boolean {
+    return this.loadedOnce && this.hasMoreAfterLastLoad;
+  }
+
+  async loadNext(): Promise<GroupMemberListPage> {
+    const params: CursorPaginationRequest = {
+      cursor: this.nextCursor ?? '',
+      page_size: this.pageSize,
+    };
+
+    const result = await groupService.getGroupMembersCursor(this.groupId, params);
+
+    this.hasMoreAfterLastLoad = result.has_more ?? false;
+    this.nextCursor = result.next_cursor ?? null;
+    this.loadedOnce = true;
+
+    return { items: result.list ?? [], hasMore: this.hasMoreAfterLastLoad };
+  }
+}
+
+/**
+ * 远端群组成员列表（偏移分页）
+ */
+export class NetworkOffsetGroupMemberListPagedSource implements IGroupMemberListPagedSource {
+  private nextPage = 1;
+  private hasMoreAfterLastLoad = false;
+  private loadedOnce = false;
+  private readonly pageSize: number;
+  private readonly groupId: string;
+
+  constructor(groupId: string, pageSize: number = GROUP_MEMBER_LIST_PAGE_SIZE) {
+    this.groupId = groupId;
+    this.pageSize = pageSize;
+  }
+
+  restart(): void {
+    this.nextPage = 1;
+    this.hasMoreAfterLastLoad = false;
+    this.loadedOnce = false;
+  }
+
+  get hasMore(): boolean {
+    return this.loadedOnce && this.hasMoreAfterLastLoad;
+  }
+
+  async loadNext(): Promise<GroupMemberListPage> {
+    const result = await groupService.getMembers(
+      this.groupId,
+      this.nextPage,
+      this.pageSize
+    );
+
+    const items = result.list ?? [];
+    const totalPages = result.total_pages ?? 1;
+
+    this.hasMoreAfterLastLoad = this.nextPage < totalPages;
+    this.nextPage++;
+    this.loadedOnce = true;
+
+    return { items, hasMore: this.hasMoreAfterLastLoad };
+  }
+}
+
+/**
+ * SQLite 群组成员列表缓存（单批，无后续页）
+ */
+export class SqliteGroupMemberListPagedSource implements IGroupMemberListPagedSource {
+  private consumed = false;
+  private readonly groupId: string;
+
+  constructor(groupId: string) {
+    this.groupId = groupId;
+  }
+
+  restart(): void {
+    this.consumed = false;
+  }
+
+  get hasMore(): boolean {
+    return false;
+  }
+
+  async loadNext(): Promise<GroupMemberListPage> {
+    if (this.consumed) {
+      return { items: [], hasMore: false };
+    }
+    this.consumed = true;
+    try {
+      const items = await getGroupMembersCache(this.groupId);
+      return { items, hasMore: false };
+    } catch (e) {
+      console.warn('[SqliteGroupMemberListPagedSource] 读取成员列表缓存失败:', e);
+      return { items: [], hasMore: false };
+    }
+  }
+}
+
+// ==================== 工厂函数 ====================
+
+/** 远端群组列表分页策略 */
+export type RemoteGroupListSourceKind = 'cursor' | 'offset';
+
+export function createRemoteGroupListSource(
+  kind: RemoteGroupListSourceKind = 'cursor',
+  pageSize: number = GROUP_LIST_PAGE_SIZE
+): IGroupListPagedSource {
+  if (kind === 'offset') {
+    return new NetworkOffsetGroupListPagedSource(pageSize);
+  }
+  return new NetworkCursorGroupListPagedSource(pageSize);
+}
+
+export function createRemoteGroupMemberListSource(
+  groupId: string,
+  kind: RemoteGroupListSourceKind = 'cursor',
+  pageSize: number = GROUP_MEMBER_LIST_PAGE_SIZE
+): IGroupMemberListPagedSource {
+  if (kind === 'offset') {
+    return new NetworkOffsetGroupMemberListPagedSource(groupId, pageSize);
+  }
+  return new NetworkCursorGroupMemberListPagedSource(groupId, pageSize);
+}

src/stores/groupManager.ts

@@ -1,3 +1,11 @@
+/**
+ * GroupManager - 群组管理核心模块
+ *
+ * 架构特点：
+ * - 使用 CachedManager 基类，消除重复的缓存/去重逻辑
+ * - 支持 Sources 模式进行分页加载
+ */
+
 import {
   GroupListResponse,
   GroupMemberListResponse,
@@ -14,7 +22,19 @@ import {
   saveGroupsCache,
   saveUsersCache,
 } from '../services/database';
-import { CacheBus, CacheEvent } from './cacheBus';
+import { CacheEvent } from './cacheBus';
+import { CachedManager, CacheEntry, createCacheEntry, isCacheExpired } from './baseManager';
+import {
+  IGroupListPagedSource,
+  IGroupMemberListPagedSource,
+  createRemoteGroupListSource,
+  createRemoteGroupMemberListSource,
+  RemoteGroupListSourceKind,
+  GROUP_LIST_PAGE_SIZE,
+  GROUP_MEMBER_LIST_PAGE_SIZE,
+} from './groupListSources';
+
+// ==================== 类型定义 ====================
 
 interface GroupManagerSnapshot {
   groupIds: string[];
@@ -28,20 +48,18 @@ type GroupManagerEvent =
   | CacheEvent<GroupManagerSnapshot>
   | CacheEvent<{ error: unknown; context: string }>;
 
+// ==================== 常量 ====================
+
 const GROUP_TTL = 60 * 1000;
 const MEMBERS_TTL = 120 * 1000;
 
-interface CacheEntry<T> {
-  data: T;
-  timestamp: number;
-  ttl: number;
-}
+// ==================== Manager 实现 ====================
 
-class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
-  private groupsListCache: CacheEntry<GroupResponse[]> | null = null;
+class GroupManager extends CachedManager<GroupManagerSnapshot, GroupManagerEvent> {
+  /** 群组详情缓存 */
   private groupDetailCache = new Map<string, CacheEntry<GroupResponse | null>>();
+  /** 群组成员缓存 */
   private groupMembersCache = new Map<string, CacheEntry<GroupMemberResponse[]>>();
-  private pendingRequests = new Map<string, Promise<any>>();
 
   protected getSnapshot(): GroupManagerSnapshot {
     return {
@@ -50,67 +68,48 @@ class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
     };
   }
 
-  private isExpired(entry: CacheEntry<any>): boolean {
-    return Date.now() - entry.timestamp > entry.ttl;
-  }
+  // ==================== 群组列表相关 ====================
 
-  private async dedupe<T>(key: string, fetcher: () => Promise<T>): Promise<T> {
-    const pending = this.pendingRequests.get(key) as Promise<T> | undefined;
-    if (pending) return pending;
-    const request = fetcher().finally(() => {
-      this.pendingRequests.delete(key);
-    });
-    this.pendingRequests.set(key, request);
-    return request;
-  }
+  /**
+   * 获取群组列表
+   */
+  async getGroups(page = 1, pageSize = GROUP_LIST_PAGE_SIZE, forceRefresh = false): Promise<GroupListResponse> {
+    const key = `list:${page}:${pageSize}`;
 
-  async getGroups(page = 1, pageSize = 20, forceRefresh = false): Promise<GroupListResponse> {
-    if (page === 1 && !forceRefresh && this.groupsListCache && !this.isExpired(this.groupsListCache)) {
-      return {
-        list: this.groupsListCache.data,
-        total: this.groupsListCache.data.length,
-        page: 1,
-        page_size: pageSize,
-        total_pages: 1,
-      };
+    // 第一页且有有效缓存
+    if (page === 1 && !forceRefresh && this.hasValidCache(key)) {
+      const groups = this.getFromCache<GroupResponse[]>(key)!;
+      return this.buildGroupListResponse(groups, pageSize);
     }
 
-    if (page === 1 && !forceRefresh && this.groupsListCache && this.isExpired(this.groupsListCache)) {
+    // 第一页且缓存过期：后台刷新
+    if (page === 1 && !forceRefresh && this.hasExpiredCache(key)) {
       this.refreshGroupsInBackground(page, pageSize);
-      return {
-        list: this.groupsListCache.data,
-        total: this.groupsListCache.data.length,
-        page: 1,
-        page_size: pageSize,
-        total_pages: 1,
-      };
+      const groups = this.getFromCache<GroupResponse[]>(key)!;
+      return this.buildGroupListResponse(groups, pageSize);
     }
 
+    // 第一页：尝试本地缓存
     if (page === 1 && !forceRefresh) {
       const localGroups = await getAllGroupsCache();
       if (localGroups.length > 0) {
-        this.groupsListCache = { data: localGroups, timestamp: Date.now(), ttl: GROUP_TTL };
+        this.setCache(key, localGroups, GROUP_TTL);
         this.notify({
           type: 'list_updated',
           payload: { groups: localGroups },
           timestamp: Date.now(),
         });
         this.refreshGroupsInBackground(page, pageSize);
-        return {
-          list: localGroups,
-          total: localGroups.length,
-          page: 1,
-          page_size: pageSize,
-          total_pages: 1,
-        };
+        return this.buildGroupListResponse(localGroups, pageSize);
       }
     }
 
+    // 发起请求
     return this.dedupe(`groups:list:${page}:${pageSize}`, async () => {
-      const response = await groupService.fetchGroupsFromApi(page, pageSize);
+      const response = await groupService.getGroups(page, pageSize);
       const groups = response.list || [];
       if (page === 1) {
-        this.groupsListCache = { data: groups, timestamp: Date.now(), ttl: GROUP_TTL };
+        this.setCache(key, groups, GROUP_TTL);
       }
       await saveGroupsCache(groups).catch(() => {});
       this.notify({
@@ -122,12 +121,23 @@ class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
     });
   }
 
-  private refreshGroupsInBackground(page = 1, pageSize = 20): void {
-    this.dedupe(`groups:list:bg:${page}:${pageSize}`, async () => {
-      const response = await groupService.fetchGroupsFromApi(page, pageSize);
+  private buildGroupListResponse(groups: GroupResponse[], pageSize: number): GroupListResponse {
+    return {
+      list: groups,
+      total: groups.length,
+      page: 1,
+      page_size: pageSize,
+      total_pages: 1,
+    };
+  }
+
+  private refreshGroupsInBackground(page = 1, pageSize = GROUP_LIST_PAGE_SIZE): void {
+    const key = `list:${page}:${pageSize}`;
+    this.dedupe(`groups:bg:${key}`, async () => {
+      const response = await groupService.getGroups(page, pageSize);
       const groups = response.list || [];
       if (page === 1) {
-        this.groupsListCache = { data: groups, timestamp: Date.now(), ttl: GROUP_TTL };
+        this.setCache(key, groups, GROUP_TTL);
         saveGroupsCache(groups).catch(() => {});
       }
       this.notify({
@@ -145,39 +155,58 @@ class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
     });
   }
 
+  /**
+   * 创建群组列表数据源（用于 Sources 模式）
+   */
+  createGroupListSource(
+    kind: RemoteGroupListSourceKind = 'cursor',
+    pageSize: number = GROUP_LIST_PAGE_SIZE
+  ): IGroupListPagedSource {
+    return createRemoteGroupListSource(kind, pageSize);
+  }
+
+  // ==================== 群组详情相关 ====================
+
+  /**
+   * 获取群组详情
+   */
   async getGroup(groupId: string, forceRefresh = false): Promise<GroupResponse> {
-    const id = groupId;
-    const cached = this.groupDetailCache.get(id);
-    if (!forceRefresh && cached && !this.isExpired(cached) && cached.data) {
+    const cached = this.groupDetailCache.get(groupId);
+
+    // 有效缓存
+    if (!forceRefresh && cached && !isCacheExpired(cached) && cached.data) {
       return cached.data;
     }
 
-    if (!forceRefresh && cached && this.isExpired(cached) && cached.data) {
-      this.refreshGroupInBackground(id);
+    // 过期缓存：后台刷新
+    if (!forceRefresh && cached && isCacheExpired(cached) && cached.data) {
+      this.refreshGroupInBackground(groupId);
       return cached.data;
     }
 
+    // 尝试本地缓存
     if (!forceRefresh) {
-      const localGroup = await getGroupCache(id);
+      const localGroup = await getGroupCache(groupId);
       if (localGroup) {
-        this.groupDetailCache.set(id, { data: localGroup, timestamp: Date.now(), ttl: GROUP_TTL });
+        this.groupDetailCache.set(groupId, createCacheEntry(localGroup, GROUP_TTL));
         this.notify({
           type: 'detail_updated',
-          payload: { groupId: id, group: localGroup },
+          payload: { groupId, group: localGroup },
           timestamp: Date.now(),
         });
-        this.refreshGroupInBackground(id);
+        this.refreshGroupInBackground(groupId);
         return localGroup;
       }
     }
 
-    return this.dedupe(`groups:detail:${id}`, async () => {
-      const group = await groupService.fetchGroupFromApi(id);
-      this.groupDetailCache.set(id, { data: group, timestamp: Date.now(), ttl: GROUP_TTL });
+    // 发起请求
+    return this.dedupe(`groups:detail:${groupId}`, async () => {
+      const group = await groupService.getGroup(groupId);
+      this.groupDetailCache.set(groupId, createCacheEntry(group, GROUP_TTL));
       await saveGroupCache(group).catch(() => {});
       this.notify({
         type: 'detail_updated',
-        payload: { groupId: id, group },
+        payload: { groupId, group },
         timestamp: Date.now(),
       });
       return group;
@@ -186,8 +215,8 @@ class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
 
   private refreshGroupInBackground(groupId: string): void {
     this.dedupe(`groups:detail:bg:${groupId}`, async () => {
-      const group = await groupService.fetchGroupFromApi(groupId);
-      this.groupDetailCache.set(groupId, { data: group, timestamp: Date.now(), ttl: GROUP_TTL });
+      const group = await groupService.getGroup(groupId);
+      this.groupDetailCache.set(groupId, createCacheEntry(group, GROUP_TTL));
       saveGroupCache(group).catch(() => {});
       this.notify({
         type: 'detail_updated',
@@ -204,61 +233,53 @@ class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
     });
   }
 
-  async getMembers(groupId: string, page = 1, pageSize = 50, forceRefresh = false): Promise<GroupMemberListResponse> {
-    const id = groupId;
-    const key = `${id}:${page}:${pageSize}`;
+  // ==================== 群组成员相关 ====================
+
+  /**
+   * 获取群组成员列表
+   */
+  async getMembers(
+    groupId: string,
+    page = 1,
+    pageSize = GROUP_MEMBER_LIST_PAGE_SIZE,
+    forceRefresh = false
+  ): Promise<GroupMemberListResponse> {
+    const key = `members:${groupId}:${page}:${pageSize}`;
     const cached = this.groupMembersCache.get(key);
-    if (!forceRefresh && cached && !this.isExpired(cached)) {
-      return {
-        list: cached.data,
-        total: cached.data.length,
-        page,
-        page_size: pageSize,
-        total_pages: 1,
-      };
+
+    // 有效缓存
+    if (!forceRefresh && cached && !isCacheExpired(cached)) {
+      return this.buildMemberListResponse(cached.data, page, pageSize);
     }
 
-    if (!forceRefresh && cached && this.isExpired(cached)) {
-      this.refreshMembersInBackground(id, page, pageSize);
-      return {
-        list: cached.data,
-        total: cached.data.length,
-        page,
-        page_size: pageSize,
-        total_pages: 1,
-      };
+    // 过期缓存：后台刷新
+    if (!forceRefresh && cached && isCacheExpired(cached)) {
+      this.refreshMembersInBackground(groupId, page, pageSize);
+      return this.buildMemberListResponse(cached.data, page, pageSize);
     }
 
+    // 第一页：尝试本地缓存
     if (page === 1 && !forceRefresh) {
-      const localMembers = await getGroupMembersCache(id);
+      const localMembers = await getGroupMembersCache(groupId);
       if (localMembers.length > 0) {
-        this.groupMembersCache.set(key, {
-          data: localMembers,
-          timestamp: Date.now(),
-          ttl: MEMBERS_TTL,
-        });
+        this.groupMembersCache.set(key, createCacheEntry(localMembers, MEMBERS_TTL));
         this.notify({
           type: 'detail_updated',
-          payload: { groupId: id, members: localMembers },
+          payload: { groupId, members: localMembers },
           timestamp: Date.now(),
         });
-        this.refreshMembersInBackground(id, page, pageSize);
-        return {
-          list: localMembers,
-          total: localMembers.length,
-          page,
-          page_size: pageSize,
-          total_pages: 1,
-        };
+        this.refreshMembersInBackground(groupId, page, pageSize);
+        return this.buildMemberListResponse(localMembers, page, pageSize);
       }
     }
 
+    // 发起请求
     return this.dedupe(`groups:members:${key}`, async () => {
-      const response = await groupService.fetchMembersFromApi(id, page, pageSize);
+      const response = await groupService.getMembers(groupId, page, pageSize);
       const members = response.list || [];
-      this.groupMembersCache.set(key, { data: members, timestamp: Date.now(), ttl: MEMBERS_TTL });
+      this.groupMembersCache.set(key, createCacheEntry(members, MEMBERS_TTL));
       if (page === 1) {
-        await saveGroupMembersCache(id, members).catch(() => {});
+        await saveGroupMembersCache(groupId, members).catch(() => {});
       }
       await saveUsersCache(
         members
@@ -267,19 +288,37 @@ class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
       ).catch(() => {});
       this.notify({
         type: 'detail_updated',
-        payload: { groupId: id, members },
+        payload: { groupId, members },
         timestamp: Date.now(),
       });
       return response;
     });
   }
 
-  private refreshMembersInBackground(groupId: string, page = 1, pageSize = 50): void {
-    this.dedupe(`groups:members:bg:${groupId}:${page}:${pageSize}`, async () => {
-      const response = await groupService.fetchMembersFromApi(groupId, page, pageSize);
+  private buildMemberListResponse(
+    members: GroupMemberResponse[],
+    page: number,
+    pageSize: number
+  ): GroupMemberListResponse {
+    return {
+      list: members,
+      total: members.length,
+      page,
+      page_size: pageSize,
+      total_pages: 1,
+    };
+  }
+
+  private refreshMembersInBackground(
+    groupId: string,
+    page = 1,
+    pageSize = GROUP_MEMBER_LIST_PAGE_SIZE
+  ): void {
+    const key = `members:${groupId}:${page}:${pageSize}`;
+    this.dedupe(`groups:members:bg:${key}`, async () => {
+      const response = await groupService.getMembers(groupId, page, pageSize);
       const members = response.list || [];
-      const key = `${groupId}:${page}:${pageSize}`;
-      this.groupMembersCache.set(key, { data: members, timestamp: Date.now(), ttl: MEMBERS_TTL });
+      this.groupMembersCache.set(key, createCacheEntry(members, MEMBERS_TTL));
       if (page === 1) {
         saveGroupMembersCache(groupId, members).catch(() => {});
       }
@@ -303,21 +342,46 @@ class GroupManager extends CacheBus<GroupManagerSnapshot, GroupManagerEvent> {
     });
   }
 
+  /**
+   * 创建群组成员列表数据源（用于 Sources 模式）
+   */
+  createGroupMemberListSource(
+    groupId: string,
+    kind: RemoteGroupListSourceKind = 'cursor',
+    pageSize: number = GROUP_MEMBER_LIST_PAGE_SIZE
+  ): IGroupMemberListPagedSource {
+    return createRemoteGroupMemberListSource(groupId, kind, pageSize);
+  }
+
+  // ==================== 缓存管理 ====================
+
+  /**
+   * 使缓存失效
+   */
   invalidate(groupId?: string): void {
     if (!groupId) {
-      this.groupsListCache = null;
+      this.clearCache();
       this.groupDetailCache.clear();
       this.groupMembersCache.clear();
       return;
     }
     this.groupDetailCache.delete(groupId);
     [...this.groupMembersCache.keys()].forEach((key) => {
-      if (key.startsWith(`${groupId}:`)) {
+      if (key.startsWith(`members:${groupId}:`)) {
         this.groupMembersCache.delete(key);
       }
     });
   }
+
+  /**
+   * 清除所有数据
+   */
+  clear(): void {
+    this.clearCache();
+    this.groupDetailCache.clear();
+    this.groupMembersCache.clear();
+    this.clearPendingRequests();
+  }
 }
 
 export const groupManager = new GroupManager();
-

src/stores/homeTabPressStore.ts

@@ -0,0 +1,13 @@
+import { create } from 'zustand';
+
+interface HomeTabPressState {
+  /** 用于触发首页回到顶部的事件计数器 */
+  pressCount: number;
+  /** 触发首页 Tab 点击事件 */
+  triggerPress: () => void;
+}
+
+export const useHomeTabPressStore = create<HomeTabPressState>((set) => ({
+  pressCount: 0,
+  triggerPress: () => set((state) => ({ pressCount: state.pressCount + 1 })),
+}));

src/stores/index.ts

@@ -44,6 +44,11 @@ export { userManager } from './userManager';
 export {
   useHomeTabBarVisibilityStore,
 } from './homeTabBarVisibilityStore';
+export {
+  useHomeTabPressStore,
+} from './homeTabPressStore';
+export { callStore } from './callStore';
+export type { CallType, CallSession, CallStatus } from './callStore';
 export {
   useAppColors,
   useThemePreference,

src/stores/message/MessageManager.ts

@@ -4,7 +4,7 @@
  */
 
 import { messageStateManager, MessageStateManager } from './MessageStateManager';
-import { sseMessageHandler, SSEMessageHandler } from './SSEMessageHandler';
+import { wsMessageHandler, WSMessageHandler } from './WSMessageHandler';
 import { messageSyncService, MessageSyncService } from './MessageSyncService';
 import { readReceiptManager, ReadReceiptManager } from './ReadReceiptManager';
 import { messageRepository } from '../../data/repositories/MessageRepository';
@@ -20,23 +20,23 @@ export type {
 
 export class MessageManager {
   private stateManager: MessageStateManager;
-  private sseHandler: SSEMessageHandler;
+  private wsHandler: WSMessageHandler;
   private syncService: MessageSyncService;
   private readManager: ReadReceiptManager;
 
   private initialized: boolean = false;
   private authUnsubscribe: (() => void) | null = null;
-  private sseUnsubscribe: (() => void) | null = null;
+  private wsUnsubscribe: (() => void) | null = null;
   private currentUserId: string | null = null;
 
   constructor() {
     this.stateManager = messageStateManager;
-    this.sseHandler = sseMessageHandler;
+    this.wsHandler = wsMessageHandler;
     this.syncService = messageSyncService;
     this.readManager = readReceiptManager;
 
     this.readManager.setStateManager(this.stateManager);
-    this.setupSSEHandlers();
+    this.setupWSHandlers();
     this.initAuthListener();
   }
 
@@ -58,8 +58,8 @@ export class MessageManager {
     });
   }
 
-  private setupSSEHandlers(): void {
-    this.sseUnsubscribe = this.sseHandler.subscribe((event) => {
+  private setupWSHandlers(): void {
+    this.wsUnsubscribe = this.wsHandler.subscribe((event) => {
       switch (event.type) {
         case 'chat_message':
         case 'group_message':
@@ -89,7 +89,7 @@ export class MessageManager {
     try {
       console.log('[MessageManager] Initializing...');
 
-      this.sseHandler.connect();
+      this.wsHandler.connect();
 
       const conversations = await this.syncService.syncConversations();
       this.stateManager.setConversations(conversations);
@@ -224,14 +224,14 @@ export class MessageManager {
   }
 
   isConnected(): boolean {
-    return this.sseHandler.isConnected();
+    return this.wsHandler.isConnected();
   }
 
   reset(): void {
     this.initialized = false;
     this.stateManager.reset();
     this.readManager.reset();
-    this.sseHandler.disconnect();
+    this.wsHandler.disconnect();
   }
 
   destroy(): void {
@@ -239,9 +239,9 @@ export class MessageManager {
       this.authUnsubscribe();
       this.authUnsubscribe = null;
     }
-    if (this.sseUnsubscribe) {
-      this.sseUnsubscribe();
-      this.sseUnsubscribe = null;
+    if (this.wsUnsubscribe) {
+      this.wsUnsubscribe();
+      this.wsUnsubscribe = null;
     }
     this.reset();
   }

src/stores/message/WSMessageHandler.ts

@@ -1,12 +1,12 @@
 /**
- * SSE 消息处理器
- * 只负责处理 SSE 消息，不管理状态
+ * WS 消息处理器
+ * 只负责处理 WS 消息，不管理状态
  */
 
-import { sseService, WSChatMessage, WSGroupChatMessage, WSReadMessage, WSGroupReadMessage, WSRecallMessage, WSGroupRecallMessage, WSGroupTypingMessage, WSGroupNoticeMessage, GroupNoticeType, WSMessage } from '../../services/sseService';
+import { wsService, WSChatMessage, WSGroupChatMessage, WSReadMessage, WSGroupReadMessage, WSRecallMessage, WSGroupRecallMessage, WSGroupTypingMessage, WSGroupNoticeMessage, GroupNoticeType, WSMessage } from '../../services/wsService';
 import type { Message, GroupNotice } from '../../core/entities/Message';
 
-export type SSEEventType =
+export type WSEventType =
   | 'chat_message'
   | 'group_message'
   | 'read_receipt'
@@ -16,58 +16,58 @@ export type SSEEventType =
   | 'typing'
   | 'group_notice';
 
-export interface SSEEvent {
-  type: SSEEventType;
+export interface WSEvent {
+  type: WSEventType;
   payload: any;
   raw: any;
 }
 
-export type SSEEventHandler = (event: SSEEvent) => void;
+export type WSEventHandler = (event: WSEvent) => void;
 
-export class SSEMessageHandler {
+export class WSMessageHandler {
   private unsubscribeFns: Array<() => void> = [];
-  private handlers: Set<SSEEventHandler> = new Set();
+  private handlers: Set<WSEventHandler> = new Set();
 
   connect(): void {
     if (this.unsubscribeFns.length > 0) return;
 
     // 监听私聊消息
-    const unsubChat = sseService.on('chat', (message) => {
+    const unsubChat = wsService.on('chat', (message) => {
       this.emit('chat_message', this.parseChatMessage(message), message);
     });
 
     // 监听群聊消息
-    const unsubGroupMessage = sseService.on('group_message', (message) => {
+    const unsubGroupMessage = wsService.on('group_message', (message) => {
       this.emit('group_message', this.parseGroupMessage(message), message);
     });
 
     // 监听私聊已读回执
-    const unsubRead = sseService.on('read', (message) => {
+    const unsubRead = wsService.on('read', (message) => {
       this.emit('read_receipt', message, message);
     });
 
     // 监听群聊已读回执
-    const unsubGroupRead = sseService.on('group_read', (message) => {
+    const unsubGroupRead = wsService.on('group_read', (message) => {
       this.emit('group_read_receipt', message, message);
     });
 
     // 监听私聊消息撤回
-    const unsubRecall = sseService.on('recall', (message) => {
+    const unsubRecall = wsService.on('recall', (message) => {
       this.emit('message_recalled', message, message);
     });
 
     // 监听群聊消息撤回
-    const unsubGroupRecall = sseService.on('group_recall', (message) => {
+    const unsubGroupRecall = wsService.on('group_recall', (message) => {
       this.emit('group_message_recalled', message, message);
     });
 
     // 监听群聊输入状态
-    const unsubGroupTyping = sseService.on('group_typing', (message) => {
+    const unsubGroupTyping = wsService.on('group_typing', (message) => {
       this.emit('typing', message, message);
     });
 
     // 监听群通知
-    const unsubGroupNotice = sseService.on('group_notice', (message) => {
+    const unsubGroupNotice = wsService.on('group_notice', (message) => {
       this.emit('group_notice', this.parseGroupNotice(message), message);
     });
 
@@ -89,18 +89,18 @@ export class SSEMessageHandler {
     this.handlers.clear();
   }
 
-  subscribe(handler: SSEEventHandler): () => void {
+  subscribe(handler: WSEventHandler): () => void {
     this.handlers.add(handler);
     return () => this.handlers.delete(handler);
   }
 
-  private emit(type: SSEEventType, payload: any, raw: any): void {
-    const event: SSEEvent = { type, payload, raw };
+  private emit(type: WSEventType, payload: any, raw: any): void {
+    const event: WSEvent = { type, payload, raw };
     this.handlers.forEach(handler => {
       try {
         handler(event);
       } catch (error) {
-        console.error('[SSEMessageHandler] Handler error:', error);
+        console.error('[WSMessageHandler] Handler error:', error);
       }
     });
   }
@@ -141,8 +141,8 @@ export class SSEMessageHandler {
   }
 
   isConnected(): boolean {
-    return sseService.isConnected();
+    return wsService.isConnected();
   }
 }
 
-export const sseMessageHandler = new SSEMessageHandler();
+export const wsMessageHandler = new WSMessageHandler();

src/stores/message/index.ts

@@ -12,8 +12,8 @@ export type { MessageState, MessageEvent, MessageSubscriber, MessageEventType }
 // 导出同步服务
 export { messageSyncService, MessageSyncService } from './MessageSyncService';
 
-// 导出SSE处理器
-export { sseMessageHandler, SSEMessageHandler } from './SSEMessageHandler';
+// 导出WS处理器
+export { wsMessageHandler, WSMessageHandler } from './WSMessageHandler';
 
 // 导出已读管理器
 export { readReceiptManager, ReadReceiptManager } from './ReadReceiptManager';

src/stores/messageManager.ts

@@ -18,7 +18,7 @@
 import { ConversationResponse, MessageResponse, MessageSegment, UserDTO } from '../types/dto';
 import { messageService } from '../services/messageService';
 import {
-  sseService,
+  wsService,
   WSChatMessage,
   WSGroupChatMessage,
   WSReadMessage,
@@ -28,7 +28,7 @@ import {
   WSGroupTypingMessage,
   WSGroupNoticeMessage,
   GroupNoticeType,
-} from '../services/sseService';
+} from '../services/wsService';
 import {
   saveMessage,
   saveMessagesBatch,
@@ -94,7 +94,7 @@ interface MessageManagerState {
   systemUnreadCount: number;
 
   // 连接状态
-  isSSEConnected: boolean;
+  isWSConnected: boolean;
 
   // 当前活动会话ID（用户正在查看的会话）
   currentConversationId: string | null;
@@ -210,7 +210,7 @@ class MessageManager {
       messagesMap: new Map(),
       totalUnreadCount: 0,
       systemUnreadCount: 0,
-      isSSEConnected: false,
+      isWSConnected: false,
       currentConversationId: null,
       isLoadingConversations: false,
       loadingMessagesSet: new Set(),
@@ -582,7 +582,7 @@ class MessageManager {
 
 
     // 监听私聊消息
-    sseService.on('chat', (message: WSChatMessage) => {
+    wsService.on('chat', (message: WSChatMessage) => {
       if (!this.state.isInitialized || this.isBootstrapping) {
         this.bufferedChatMessages.push(message);
         return;
@@ -591,7 +591,7 @@ class MessageManager {
     });
 
     // 监听群聊消息
-    sseService.on('group_message', (message: WSGroupChatMessage) => {
+    wsService.on('group_message', (message: WSGroupChatMessage) => {
       if (!this.state.isInitialized || this.isBootstrapping) {
         this.bufferedChatMessages.push(message);
         return;
@@ -600,7 +600,7 @@ class MessageManager {
     });
 
     // 监听私聊已读回执
-    sseService.on('read', (message: WSReadMessage) => {
+    wsService.on('read', (message: WSReadMessage) => {
       if (!this.state.isInitialized || this.isBootstrapping) {
         this.bufferedReadReceipts.push(message);
         return;
@@ -609,7 +609,7 @@ class MessageManager {
     });
 
     // 监听群聊已读回执
-    sseService.on('group_read', (message: WSGroupReadMessage) => {
+    wsService.on('group_read', (message: WSGroupReadMessage) => {
       if (!this.state.isInitialized || this.isBootstrapping) {
         this.bufferedReadReceipts.push(message);
         return;
@@ -618,28 +618,28 @@ class MessageManager {
     });
 
     // 监听私聊消息撤回
-    sseService.on('recall', (message: WSRecallMessage) => {
+    wsService.on('recall', (message: WSRecallMessage) => {
       this.handleRecallMessage(message);
     });
 
     // 监听群聊消息撤回
-    sseService.on('group_recall', (message: WSGroupRecallMessage) => {
+    wsService.on('group_recall', (message: WSGroupRecallMessage) => {
       this.handleGroupRecallMessage(message);
     });
 
     // 监听群聊输入状态
-    sseService.on('group_typing', (message: WSGroupTypingMessage) => {
+    wsService.on('group_typing', (message: WSGroupTypingMessage) => {
       this.handleGroupTyping(message);
     });
 
     // 监听群通知
-    sseService.on('group_notice', (message: WSGroupNoticeMessage) => {
+    wsService.on('group_notice', (message: WSGroupNoticeMessage) => {
       this.handleGroupNotice(message);
     });
 
     // 监听连接状态
-    sseService.onConnect(() => {
-      this.state.isSSEConnected = true;
+    wsService.onConnect(() => {
+      this.state.isWSConnected = true;
       this.notifySubscribers({
         type: 'connection_changed',
         payload: { connected: true },
@@ -668,8 +668,8 @@ class MessageManager {
       }
     });
 
-    sseService.onDisconnect(() => {
-      this.state.isSSEConnected = false;
+    wsService.onDisconnect(() => {
+      this.state.isWSConnected = false;
       this.notifySubscribers({
         type: 'connection_changed',
         payload: { connected: false },
@@ -2375,7 +2375,7 @@ class MessageManager {
    * 获取SSE连接状态
    */
   isConnected(): boolean {
-    return this.state.isSSEConnected;
+    return this.state.isWSConnected;
   }
 
   /**
@@ -2486,7 +2486,7 @@ class MessageManager {
 
     subscriber({
       type: 'connection_changed',
-      payload: { connected: this.state.isSSEConnected },
+      payload: { connected: this.state.isWSConnected },
       timestamp: Date.now(),
     });
 

src/stores/postListSources.ts

@@ -0,0 +1,137 @@
+/**
+ * 帖子列表数据源抽象：游标、偏移分页实现同一契约，PostManager 只依赖接口。
+ */
+
+import { Post } from '../types';
+import { postService } from '../services/postService';
+import type { CursorPaginationRequest } from '../types/dto';
+
+export const POST_LIST_PAGE_SIZE = 20;
+
+/** 帖子列表类型 */
+export type PostListTab = 'hot' | 'latest' | 'follow';
+
+/** 单次拉取结果（一页或一批） */
+export interface PostListPage {
+  items: Post[];
+  /** 在当前源上是否还能再 loadNext 一页 */
+  hasMore: boolean;
+}
+
+/**
+ * 分页式帖子列表源：restart 后开始新序列；首次 loadNext 为第一页，之后为后续页。
+ */
+export interface IPostListPagedSource {
+  restart(): void;
+  loadNext(): Promise<PostListPage>;
+  /** 至少成功 loadNext 过一次且仍有下一页时为 true */
+  readonly hasMore: boolean;
+}
+
+/**
+ * 远端帖子列表（游标分页）
+ */
+export class NetworkCursorPostListPagedSource implements IPostListPagedSource {
+  private nextCursor: string | null = null;
+  private hasMoreAfterLastLoad = false;
+  private loadedOnce = false;
+  private readonly pageSize: number;
+  private readonly tab?: PostListTab;
+  private readonly channelId?: string;
+
+  constructor(
+    options: { tab?: PostListTab; channelId?: string; pageSize?: number } = {}
+  ) {
+    this.tab = options.tab;
+    this.channelId = options.channelId;
+    this.pageSize = options.pageSize ?? POST_LIST_PAGE_SIZE;
+  }
+
+  restart(): void {
+    this.nextCursor = null;
+    this.hasMoreAfterLastLoad = false;
+    this.loadedOnce = false;
+  }
+
+  get hasMore(): boolean {
+    return this.loadedOnce && this.hasMoreAfterLastLoad;
+  }
+
+  async loadNext(): Promise<PostListPage> {
+    const params: CursorPaginationRequest = {
+      cursor: this.nextCursor ?? '',
+      page_size: this.pageSize,
+      post_type: this.tab,
+    };
+
+    const result = await postService.getPostsCursor(params);
+
+    this.hasMoreAfterLastLoad = result.has_more ?? false;
+    this.nextCursor = result.next_cursor ?? null;
+    this.loadedOnce = true;
+
+    return { items: result.list ?? [], hasMore: this.hasMoreAfterLastLoad };
+  }
+}
+
+/**
+ * 远端帖子列表（偏移分页）
+ */
+export class NetworkOffsetPostListPagedSource implements IPostListPagedSource {
+  private nextPage = 1;
+  private hasMoreAfterLastLoad = false;
+  private loadedOnce = false;
+  private readonly pageSize: number;
+  private readonly tab?: PostListTab;
+  private readonly channelId?: string;
+
+  constructor(
+    options: { tab?: PostListTab; channelId?: string; pageSize?: number } = {}
+  ) {
+    this.tab = options.tab;
+    this.channelId = options.channelId;
+    this.pageSize = options.pageSize ?? POST_LIST_PAGE_SIZE;
+  }
+
+  restart(): void {
+    this.nextPage = 1;
+    this.hasMoreAfterLastLoad = false;
+    this.loadedOnce = false;
+  }
+
+  get hasMore(): boolean {
+    return this.loadedOnce && this.hasMoreAfterLastLoad;
+  }
+
+  async loadNext(): Promise<PostListPage> {
+    const result = await postService.getPosts(
+      this.nextPage,
+      this.pageSize,
+      this.tab,
+      this.channelId
+    );
+
+    const items = result.list ?? [];
+    const total = result.total ?? 0;
+    const totalPages = result.total_pages ?? 1;
+
+    this.hasMoreAfterLastLoad = this.nextPage < totalPages;
+    this.nextPage++;
+    this.loadedOnce = true;
+
+    return { items, hasMore: this.hasMoreAfterLastLoad };
+  }
+}
+
+/** 远端帖子列表分页策略 */
+export type RemotePostListSourceKind = 'cursor' | 'offset';
+
+export function createRemotePostListSource(
+  kind: RemotePostListSourceKind = 'cursor',
+  options: { tab?: PostListTab; channelId?: string; pageSize?: number } = {}
+): IPostListPagedSource {
+  if (kind === 'offset') {
+    return new NetworkOffsetPostListPagedSource(options);
+  }
+  return new NetworkCursorPostListPagedSource(options);
+}

src/stores/postManager.ts

@@ -1,6 +1,24 @@
+/**
+ * PostManager - 帖子管理核心模块
+ *
+ * 架构特点：
+ * - 使用 CachedManager 基类，消除重复的缓存/去重逻辑
+ * - 支持 Sources 模式进行分页加载
+ */
+
 import { Post } from '../types';
 import { postService } from '../services/postService';
-import { CacheBus, CacheEvent } from './cacheBus';
+import { CacheEvent } from './cacheBus';
+import { CachedManager, CacheEntry, createCacheEntry, isCacheExpired } from './baseManager';
+import {
+  IPostListPagedSource,
+  PostListTab,
+  createRemotePostListSource,
+  RemotePostListSourceKind,
+  POST_LIST_PAGE_SIZE,
+} from './postListSources';
+
+// ==================== 类型定义 ====================
 
 interface PostListPayload {
   key: string;
@@ -23,66 +41,57 @@ type PostManagerEvent =
   | CacheEvent<PostManagerSnapshot>
   | CacheEvent<{ error: unknown; context: string }>;
 
+// ==================== 常量 ====================
+
 const LIST_TTL = 30 * 1000;
 const DETAIL_TTL = 60 * 1000;
 
-interface CacheEntry<T> {
-  data: T;
-  timestamp: number;
-  ttl: number;
-}
+// ==================== Manager 实现 ====================
 
-class PostManager extends CacheBus<PostManagerSnapshot, PostManagerEvent> {
-  private listCache = new Map<string, CacheEntry<Post[]>>();
+class PostManager extends CachedManager<PostManagerSnapshot, PostManagerEvent> {
+  /** 详情缓存 */
   private detailCache = new Map<string, CacheEntry<Post | null>>();
-  private pendingRequests = new Map<string, Promise<any>>();
 
   protected getSnapshot(): PostManagerSnapshot {
     return {
-      listKeys: [...this.listCache.keys()],
+      listKeys: [...this.memoryCache.keys()],
       detailKeys: [...this.detailCache.keys()],
     };
   }
 
-  private isExpired(entry: CacheEntry<any>): boolean {
-    return Date.now() - entry.timestamp > entry.ttl;
-  }
-
-  private async dedupe<T>(key: string, fetcher: () => Promise<T>): Promise<T> {
-    const pending = this.pendingRequests.get(key) as Promise<T> | undefined;
-    if (pending) return pending;
-    const request = fetcher().finally(() => {
-      this.pendingRequests.delete(key);
-    });
-    this.pendingRequests.set(key, request);
-    return request;
-  }
+  // ==================== 列表相关 ====================
 
   private listKey(type: string, page: number, pageSize: number): string {
-    return `${type}:${page}:${pageSize}`;
+    return `list:${type}:${page}:${pageSize}`;
   }
 
+  /**
+   * 获取帖子列表（传统分页模式）
+   */
   async getPosts(
-    type = 'hot',
+    type: PostListTab = 'hot',
     page = 1,
-    pageSize = 20,
+    pageSize = POST_LIST_PAGE_SIZE,
     forceRefresh = false
   ): Promise<Post[]> {
     const key = this.listKey(type, page, pageSize);
-    const cached = this.listCache.get(key);
-    if (!forceRefresh && cached && !this.isExpired(cached)) {
-      return cached.data;
+
+    // 检查有效缓存
+    if (!forceRefresh && this.hasValidCache(key)) {
+      return this.getFromCache<Post[]>(key)!;
     }
 
-    if (!forceRefresh && cached && this.isExpired(cached)) {
+    // 过期缓存：后台刷新，立即返回旧数据
+    if (!forceRefresh && this.hasExpiredCache(key)) {
       this.refreshPostsInBackground(key, type, page, pageSize);
-      return cached.data;
+      return this.getFromCache<Post[]>(key)!;
     }
 
-    return this.dedupe(`posts:list:${key}`, async () => {
+    // 无缓存：发起请求
+    return this.dedupe(`posts:${key}`, async () => {
       const response = await postService.getPosts(page, pageSize, type);
       const posts = response.list || [];
-      this.listCache.set(key, { data: posts, timestamp: Date.now(), ttl: LIST_TTL });
+      this.setCache(key, posts, LIST_TTL);
       this.notify({
         type: 'list_updated',
         payload: { key, posts },
@@ -92,11 +101,16 @@ class PostManager extends CacheBus<PostManagerSnapshot, PostManagerEvent> {
     });
   }
 
-  private refreshPostsInBackground(key: string, type: string, page: number, pageSize: number): void {
-    this.dedupe(`posts:list:bg:${key}`, async () => {
+  private refreshPostsInBackground(
+    key: string,
+    type: PostListTab,
+    page: number,
+    pageSize: number
+  ): void {
+    this.dedupe(`posts:bg:${key}`, async () => {
       const response = await postService.getPosts(page, pageSize, type);
       const posts = response.list || [];
-      this.listCache.set(key, { data: posts, timestamp: Date.now(), ttl: LIST_TTL });
+      this.setCache(key, posts, LIST_TTL);
       this.notify({
         type: 'list_updated',
         payload: { key, posts },
@@ -112,20 +126,39 @@ class PostManager extends CacheBus<PostManagerSnapshot, PostManagerEvent> {
     });
   }
 
+  /**
+   * 创建帖子列表数据源（用于 Sources 模式）
+   */
+  createPostListSource(
+    options: { tab?: PostListTab; channelId?: string; pageSize?: number } = {},
+    kind: RemotePostListSourceKind = 'cursor'
+  ): IPostListPagedSource {
+    return createRemotePostListSource(kind, options);
+  }
+
+  // ==================== 详情相关 ====================
+
+  /**
+   * 获取帖子详情
+   */
   async getPostDetail(postId: string, forceRefresh = false): Promise<Post | null> {
     const cached = this.detailCache.get(postId);
-    if (!forceRefresh && cached && !this.isExpired(cached)) {
+
+    // 有效缓存
+    if (!forceRefresh && cached && !isCacheExpired(cached)) {
       return cached.data;
     }
 
-    if (!forceRefresh && cached && this.isExpired(cached)) {
+    // 过期缓存：后台刷新
+    if (!forceRefresh && cached && isCacheExpired(cached) && cached.data) {
       this.refreshPostDetailInBackground(postId);
       return cached.data;
     }
 
+    // 无缓存：发起请求
     return this.dedupe(`posts:detail:${postId}`, async () => {
       const post = await postService.getPost(postId);
-      this.detailCache.set(postId, { data: post, timestamp: Date.now(), ttl: DETAIL_TTL });
+      this.detailCache.set(postId, createCacheEntry(post, DETAIL_TTL));
       this.notify({
         type: 'detail_updated',
         payload: { postId, post },
@@ -138,7 +171,7 @@ class PostManager extends CacheBus<PostManagerSnapshot, PostManagerEvent> {
   private refreshPostDetailInBackground(postId: string): void {
     this.dedupe(`posts:detail:bg:${postId}`, async () => {
       const post = await postService.getPost(postId);
-      this.detailCache.set(postId, { data: post, timestamp: Date.now(), ttl: DETAIL_TTL });
+      this.detailCache.set(postId, createCacheEntry(post, DETAIL_TTL));
       this.notify({
         type: 'detail_updated',
         payload: { postId, post },
@@ -154,21 +187,28 @@ class PostManager extends CacheBus<PostManagerSnapshot, PostManagerEvent> {
     });
   }
 
+  // ==================== 缓存管理 ====================
+
+  /**
+   * 使缓存失效
+   */
   invalidate(postId?: string): void {
     if (postId) {
       this.detailCache.delete(postId);
       return;
     }
-    this.listCache.clear();
+    this.clearCache();
     this.detailCache.clear();
   }
 
+  /**
+   * 清除所有数据
+   */
   clear(): void {
-    this.listCache.clear();
+    this.clearCache();
     this.detailCache.clear();
-    this.pendingRequests.clear();
+    this.clearPendingRequests();
   }
 }
 
 export const postManager = new PostManager();
-

src/stores/themeStore.ts

@@ -1,7 +1,7 @@
 import AsyncStorage from '@react-native-async-storage/async-storage';
-import { useColorScheme } from 'react-native';
+import { Appearance, AppState, AppStateStatus } from 'react-native';
 import { create } from 'zustand';
-import { useEffect } from 'react';
+import { useEffect, useRef } from 'react';
 import { lightColors, darkColors, type AppColors } from '../theme/palettes';
 import { buildPaperTheme } from '../theme/paperTheme';
 import type { MD3Theme } from 'react-native-paper';
@@ -46,13 +46,19 @@ type ThemeState = {
   hydrate: () => Promise<void>;
 };
 
-const initialSystem: ResolvedScheme = 'light';
+/** 获取系统主题 */
+function getSystemScheme(): ResolvedScheme {
+  const scheme = Appearance.getColorScheme();
+  return scheme === 'dark' ? 'dark' : 'light';
+}
+
+const initialSystemScheme = getSystemScheme();
 
 export const useThemeStore = create<ThemeState>((set, get) => ({
   preference: 'system',
-  systemScheme: initialSystem,
+  systemScheme: initialSystemScheme,
   hydrated: false,
-  ...buildState('system', initialSystem),
+  ...buildState('system', initialSystemScheme),
 
   setSystemScheme: (systemScheme) => {
     const { preference, systemScheme: cur } = get();
@@ -86,10 +92,11 @@ export const useThemeStore = create<ThemeState>((set, get) => ({
     } catch {
       /* ignore */
     }
-    const { systemScheme } = get();
+    const systemScheme = getSystemScheme();
     set({
       preference,
       hydrated: true,
+      systemScheme,
       ...buildState(preference, systemScheme),
     });
   },
@@ -97,17 +104,42 @@ export const useThemeStore = create<ThemeState>((set, get) => ({
 
 /** 在根布局中同步系统配色并恢复持久化偏好 */
 export function ThemeBootstrap() {
-  const system = useColorScheme();
   const setSystemScheme = useThemeStore((s) => s.setSystemScheme);
   const hydrate = useThemeStore((s) => s.hydrate);
+  const appState = useRef<AppStateStatus>(AppState.currentState);
 
   useEffect(() => {
     void hydrate();
   }, [hydrate]);
 
+  // 监听系统主题变化
   useEffect(() => {
-    setSystemScheme(system === 'dark' ? 'dark' : 'light');
-  }, [system, setSystemScheme]);
+    const subscription = Appearance.addChangeListener(({ colorScheme }) => {
+      const newScheme = colorScheme === 'dark' ? 'dark' : 'light';
+      setSystemScheme(newScheme);
+    });
+
+    return () => {
+      subscription.remove();
+    };
+  }, [setSystemScheme]);
+
+  // 监听应用状态变化，从后台恢复时重新检测系统主题
+  useEffect(() => {
+    const subscription = AppState.addEventListener('change', (nextAppState) => {
+      if (
+        appState.current.match(/inactive|background/) &&
+        nextAppState === 'active'
+      ) {
+        setSystemScheme(getSystemScheme());
+      }
+      appState.current = nextAppState;
+    });
+
+    return () => {
+      subscription.remove();
+    };
+  }, [setSystemScheme]);
 
   return null;
 }
@@ -131,3 +163,6 @@ export function useSetThemePreference() {
 export function usePaperThemeFromStore() {
   return useThemeStore((s) => s.paperTheme);
 }
+
+// 导出调试函数
+export { getSystemScheme };

src/theme/palettes.ts

@@ -76,8 +76,8 @@ export const lightColors = {
     link: '#4A88C7',
     success: '#34C759',
     danger: '#FF3B30',
-    bubbleOutgoing: '#E8E8E8',
-    bubbleIncoming: '#FFFFFF',
+    bubbleOutgoing: '#E8E8E8',  // 柔和的淡灰色
+    bubbleIncoming: '#FFFFFF',  // 对方发的消息 - 纯白
     replyTint: '#DFF2FF',
     replyTintActive: '#CFEAFF',
     replyBorder: '#7FB6E6',
@@ -168,8 +168,8 @@ export const darkColors = {
     link: '#5AC8FA',
     success: '#32D74B',
     danger: '#FF453A',
-    bubbleOutgoing: '#3A3A3C',
-    bubbleIncoming: '#2C2C2E',
+    bubbleOutgoing: '#3A3A3C',  // 暗色模式：深灰色
+    bubbleIncoming: '#2C2C2E',  // 暗色模式：灰色气泡
     replyTint: '#1A3A52',
     replyTintActive: '#224060',
     replyBorder: '#4A88C7',

src/theme/tokens.ts

@@ -2,6 +2,39 @@
  * 与明暗无关的设计 token
  */
 
+// 字体配置 - 使用系统字体栈，优化字重
+export const fontFamily = {
+  // iOS 系统字体
+  ios: {
+    regular: 'System',
+    medium: 'System',
+    semibold: 'System',
+    bold: 'System',
+  },
+  // Android 系统字体
+  android: {
+    regular: 'Roboto',
+    medium: 'Roboto',
+    semibold: 'Roboto',
+    bold: 'Roboto',
+  },
+  // 通用字体栈
+  system: {
+    regular: 'System',
+    medium: 'System',
+    semibold: 'System',
+    bold: 'System',
+  },
+};
+
+// 字体字重 - 使用数值更精确控制
+export const fontWeights = {
+  regular: '400' as const,
+  medium: '500' as const,
+  semibold: '600' as const,
+  bold: '700' as const,
+};
+
 export const fontSizes = {
   xs: 10,
   sm: 12,

src/types/dto.ts

@@ -684,31 +684,37 @@ export interface GroupAnnouncementListResponse {
   total_pages: number;
 }
 
-// ==================== SSE Event Types ====================
+// ==================== WS Event Types ====================
 
-// SSE 事件类型
-export type SSEEventType = 'message' | 'notice' | 'request' | 'meta';
+// WS 事件类型
+export type WSEventType = 'message' | 'notice' | 'request' | 'meta';
 
-// SSE 消息详细类型
-export type SSEDetailType = 'private' | 'group' | 'follow' | 'like' | 'comment' | 'request' | 'typing' | 'heartbeat' | 'read';
+// WS 消息详细类型
+export type WSDetailType = 'private' | 'group' | 'follow' | 'like' | 'comment' | 'request' | 'typing' | 'heartbeat' | 'read';
 
-// SSE 事件消息段（与后端 message 字段一致）
-export interface SSESegment {
+// WS 事件消息段（与后端 message 字段一致）
+export interface WSSegment {
   type: string;
   data: Record<string, any>;
 }
 
-// SSE 事件（后端推送的事件格式）
-export interface SSEEvent {
+// WS 事件（后端推送的事件格式）
+export interface WSEvent {
   id: string;                    // 事件唯一ID
   time: number;                  // 事件时间戳（毫秒）
-  type: SSEEventType;              // 事件类型: message(消息), notice(通知), request(请求), meta(元事件)
-  detail_type: SSEDetailType;     // 详细类型: private(私聊), group(群聊), follow(关注), like(点赞)等
+  type: WSEventType;              // 事件类型: message(消息), notice(通知), request(请求), meta(元事件)
+  detail_type: WSDetailType;     // 详细类型: private(私聊), group(群聊), follow(关注), like(点赞)等
   seq: string;                   // 消息序号
-  message?: SSESegment[];         // 消息内容数组
+  message?: WSSegment[];         // 消息内容数组
   conversation_id: string;        // 会话ID
 }
 
+// 旧的类型名称，保持向后兼容
+export type SSEEventType = WSEventType;
+export type SSEDetailType = WSDetailType;
+export interface SSESegment extends WSSegment {}
+export interface SSEEvent extends WSEvent {}
+
 /**
  * 从消息segments中提取纯文本内容
  * 用于消息列表显示、通知等场景

src/types/index.ts

@@ -6,6 +6,7 @@
 // 导出DTO类型作为主要类型
 export * from './dto';
 export * from './schedule';
+export * from './material';
 
 // 兼容旧类型（用于内部组件）
 import type {

src/types/material.ts

@@ -0,0 +1,103 @@
+/**
+ * 学习资料类型定义
+ */
+
+// 文件类型枚举
+export type MaterialFileType = 'pdf' | 'word' | 'ppt';
+
+// 学科分类
+export interface MaterialSubject {
+  id: string;
+  name: string;
+  icon: string; // MaterialCommunityIcons name
+  color: string; // 主题色
+  description?: string;
+  sort_order: number;
+  is_active: boolean;
+  material_count: number;
+  created_at: string;
+  updated_at: string;
+}
+
+// 文件资料
+export interface MaterialFile {
+  id: string;
+  subject_id: string;
+  title: string;
+  description?: string;
+  file_type: MaterialFileType;
+  file_size: number; // 字节数
+  file_url: string;
+  file_name: string;
+  download_count: number;
+  author_id?: string;
+  author_name?: string;
+  tags?: string[];
+  status: 'active' | 'inactive';
+  created_at: string;
+  updated_at: string;
+  subject?: MaterialSubject;
+}
+
+// 学科资料列表响应
+export interface SubjectMaterialsResponse {
+  subject: MaterialSubject;
+  materials: MaterialFile[];
+  total: number;
+  page: number;
+  page_size: number;
+}
+
+// 搜索结果响应
+export interface SearchMaterialsResponse {
+  materials: MaterialFile[];
+  total: number;
+  page: number;
+  page_size: number;
+}
+
+// 文件类型图标映射
+export const MATERIAL_FILE_TYPE_ICONS: Record<MaterialFileType, string> = {
+  pdf: 'file-pdf-box',
+  word: 'file-word-box',
+  ppt: 'file-powerpoint-box',
+};
+
+// 文件类型颜色映射
+export const MATERIAL_FILE_TYPE_COLORS: Record<MaterialFileType, string> = {
+  pdf: '#E53935',
+  word: '#1E88E5',
+  ppt: '#FF9800',
+};
+
+// 文件类型名称映射
+export const MATERIAL_FILE_TYPE_NAMES: Record<MaterialFileType, string> = {
+  pdf: 'PDF',
+  word: 'Word',
+  ppt: 'PPT',
+};
+
+// 文件大小格式化
+export function formatFileSize(bytes: number): string {
+  if (bytes === 0) return '0 B';
+  const k = 1024;
+  const sizes = ['B', 'KB', 'MB', 'GB'];
+  const i = Math.floor(Math.log(bytes) / Math.log(k));
+  return `${parseFloat((bytes / Math.pow(k, i)).toFixed(1))} ${sizes[i]}`;
+}
+
+// 学科颜色预设
+export const SUBJECT_COLORS = [
+  '#FF6B6B', // 红色
+  '#4ECDC4', // 青色
+  '#45B7D1', // 蓝色
+  '#96CEB4', // 绿色
+  '#FFEAA7', // 黄色
+  '#DDA0DD', // 紫色
+  '#F39C12', // 橙色
+  '#3498DB', // 深蓝
+  '#27AE60', // 深绿
+  '#9B59B6', // 深紫
+  '#1ABC9C', // 青绿
+  '#E74C3C', // 深红
+];