feat: add QR code login and enhance chat experience

- Add QR code login flow with scanner and confirmation screens
- Implement swipe-to-reply in chat with SwipeableMessageBubble
- Replace FlatList with FlashList for chat performance optimization
- Add Schedule stack navigator with CourseDetail screen support
- Configure deep linking for QR code login (carrotbbs://qrcode/login/:sessionId)
- Update branding from 胡萝卜 to 萝卜社区
- Display dynamic app version in settings

src/components/business/QRCodeScanner.tsx

@@ -0,0 +1,251 @@
+import React, { useState, useEffect } from 'react';
+import {
+  View,
+  Text,
+  StyleSheet,
+  TouchableOpacity,
+  Alert,
+  Modal,
+  Dimensions,
+} from 'react-native';
+import { CameraView, useCameraPermissions } from 'expo-camera';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { useNavigation } from '@react-navigation/native';
+import { NativeStackNavigationProp } from '@react-navigation/native-stack';
+import { RootStackParamList } from '../../navigation/types';
+import { colors, spacing, fontSizes, borderRadius } from '../../theme';
+
+const { width, height } = Dimensions.get('window');
+
+type NavigationProp = NativeStackNavigationProp<RootStackParamList>;
+
+interface QRCodeScannerProps {
+  visible: boolean;
+  onClose: () => void;
+}
+
+export const QRCodeScanner: React.FC<QRCodeScannerProps> = ({ visible, onClose }) => {
+  const navigation = useNavigation<NavigationProp>();
+  const [permission, requestPermission] = useCameraPermissions();
+  const [scanned, setScanned] = useState(false);
+
+  useEffect(() => {
+    if (visible) {
+      // 重置扫描状态，确保每次打开都能重新扫描
+      setScanned(false);
+      if (!permission?.granted) {
+        requestPermission();
+      }
+    }
+  }, [visible]);
+
+  const handleBarCodeScanned = ({ type, data }: { type: string; data: string }) => {
+    if (scanned) return;
+    setScanned(true);
+
+    // 先关闭扫描界面，类似微信的做法
+    onClose();
+
+    // 解析二维码内容
+    // 格式: carrotbbs://qrcode/login?session_id=xxx
+    if (data.startsWith('carrotbbs://qrcode/login')) {
+      const sessionId = extractSessionId(data);
+      if (sessionId) {
+        // 跳转到确认页面
+        navigation.navigate('QRCodeConfirm', { sessionId });
+      } else {
+        Alert.alert('无效的二维码', '无法识别该二维码');
+      }
+    } else {
+      Alert.alert('无效的二维码', '请扫描网页端的登录二维码');
+    }
+  };
+
+  const extractSessionId = (url: string): string | null => {
+    try {
+      const sessionIdMatch = url.match(/session_id=([^&]+)/);
+      return sessionIdMatch ? sessionIdMatch[1] : null;
+    } catch {
+      return null;
+    }
+  };
+
+  if (!permission?.granted) {
+    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.permissionContainer}>
+            <MaterialCommunityIcons name="camera-off" size={64} color="#999" />
+            <Text style={styles.permissionText}>需要相机权限才能扫码</Text>
+            <TouchableOpacity style={styles.permissionButton} onPress={requestPermission}>
+              <Text style={styles.permissionButtonText}>授予权限</Text>
+            </TouchableOpacity>
+          </View>
+        </View>
+      </Modal>
+    );
+  }
+
+  return (
+    <Modal visible={visible} animationType="slide" onRequestClose={onClose}>
+      <View style={styles.container}>
+        <CameraView
+          style={styles.camera}
+          facing="back"
+          onBarcodeScanned={scanned ? undefined : handleBarCodeScanned}
+          barcodeScannerSettings={{
+            barcodeTypes: ['qr'],
+          }}
+        >
+          <View style={styles.overlay}>
+            <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.scanArea}>
+              <View style={styles.scanFrame}>
+                <View style={[styles.corner, styles.topLeft]} />
+                <View style={[styles.corner, styles.topRight]} />
+                <View style={[styles.corner, styles.bottomLeft]} />
+                <View style={[styles.corner, styles.bottomRight]} />
+              </View>
+              <Text style={styles.scanText}>将二维码放入框内即可扫描</Text>
+            </View>
+
+            <View style={styles.footer}>
+              <TouchableOpacity style={styles.flashButton} onPress={() => {}}>
+                <MaterialCommunityIcons name="flashlight" size={24} color="#fff" />
+              </TouchableOpacity>
+            </View>
+          </View>
+        </CameraView>
+      </View>
+    </Modal>
+  );
+};
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: '#000',
+  },
+  camera: {
+    flex: 1,
+  },
+  overlay: {
+    flex: 1,
+    backgroundColor: 'rgba(0,0,0,0.5)',
+  },
+  header: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+    paddingHorizontal: spacing.md,
+    paddingTop: spacing.xl,
+    paddingBottom: spacing.md,
+  },
+  closeButton: {
+    padding: spacing.sm,
+  },
+  headerTitle: {
+    fontSize: fontSizes.lg,
+    fontWeight: '600',
+    color: '#fff',
+  },
+  placeholder: {
+    width: 40,
+  },
+  scanArea: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  scanFrame: {
+    width: width * 0.7,
+    height: width * 0.7,
+    position: 'relative',
+  },
+  corner: {
+    position: 'absolute',
+    width: 20,
+    height: 20,
+    borderColor: colors.primary.main,
+    borderWidth: 3,
+  },
+  topLeft: {
+    top: 0,
+    left: 0,
+    borderRightWidth: 0,
+    borderBottomWidth: 0,
+  },
+  topRight: {
+    top: 0,
+    right: 0,
+    borderLeftWidth: 0,
+    borderBottomWidth: 0,
+  },
+  bottomLeft: {
+    bottom: 0,
+    left: 0,
+    borderRightWidth: 0,
+    borderTopWidth: 0,
+  },
+  bottomRight: {
+    bottom: 0,
+    right: 0,
+    borderLeftWidth: 0,
+    borderTopWidth: 0,
+  },
+  scanText: {
+    marginTop: spacing.lg,
+    fontSize: fontSizes.md,
+    color: '#fff',
+    textAlign: 'center',
+  },
+  footer: {
+    padding: spacing.xl,
+    alignItems: 'center',
+  },
+  flashButton: {
+    padding: spacing.md,
+    backgroundColor: 'rgba(255,255,255,0.2)',
+    borderRadius: borderRadius.full,
+  },
+  permissionContainer: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+    padding: spacing.xl,
+  },
+  permissionText: {
+    marginTop: spacing.lg,
+    fontSize: fontSizes.md,
+    color: '#666',
+    textAlign: 'center',
+  },
+  permissionButton: {
+    marginTop: spacing.xl,
+    paddingVertical: spacing.md,
+    paddingHorizontal: spacing.xl,
+    backgroundColor: colors.primary.main,
+    borderRadius: borderRadius.md,
+  },
+  permissionButtonText: {
+    color: '#fff',
+    fontSize: fontSizes.md,
+    fontWeight: '600',
+  },
+});
+
+export default QRCodeScanner;

src/navigation/MainNavigator.tsx

@@ -22,7 +22,7 @@ import { useAuthStore } from '../stores';
 
 // Deep linking 配置
 const linking: LinkingOptions<RootStackParamList> = {
-  prefixes: [],
+  prefixes: ['carrotbbs://'],
   config: {
     screens: {
       Auth: {
@@ -63,6 +63,7 @@ const linking: LinkingOptions<RootStackParamList> = {
       CreatePost: 'posts/create',
       Chat: 'chat/:conversationId',
       FollowList: 'users/:userId/:type',
+      QRCodeConfirm: 'qrcode/login/:sessionId',
     },
   },
 };

src/navigation/RootNavigator.tsx

@@ -23,6 +23,7 @@ import { PostDetailScreen } from '../screens/home';
 import { UserScreen } from '../screens/profile';
 import FollowListScreen from '../screens/profile/FollowListScreen';
 import { CreatePostScreen } from '../screens/create';
+import { QRCodeConfirmScreen } from '../screens/auth/QRCodeConfirmScreen';
 import {
   ChatScreen,
   CreateGroupScreen,
@@ -210,6 +211,15 @@ const getAuthenticatedScreens = () => [
       animation: 'slide_from_right',
     }}
   />,
+  <RootStack.Screen
+    key="QRCodeConfirm"
+    name="QRCodeConfirm"
+    component={QRCodeConfirmScreen}
+    options={{
+      headerShown: false,
+      presentation: 'modal',
+    }}
+  />,
 ];
 
 export function RootNavigator({ isAuthenticated, isInitializing }: RootNavigatorProps) {

src/navigation/SimpleMobileTabNavigator.tsx

@@ -1,6 +1,6 @@
 /**
  * 简单的移动端 Tab Navigator
- * 
+ *
  * 不使用 React Navigation 的 Tab Navigator，而是使用一个简单的自定义实现
  * 这样可以完全避免 React Navigation 状态恢复的问题
  */
@@ -15,6 +15,7 @@ import {
 } from 'react-native';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { createNativeStackNavigator } from '@react-navigation/native-stack';
 
 import { colors, shadows } from '../theme';
 import { useTotalUnreadCount } from '../stores';
@@ -33,6 +34,15 @@ import { ProfileScreen, SettingsScreen, EditProfileScreen, NotificationSettingsS
 // ==================== 类型定义 ====================
 type TabName = 'HomeTab' | 'MessageTab' | 'ScheduleTab' | 'ProfileTab';
 
+// Schedule Stack 类型定义
+export type ScheduleStackParamList = {
+  Schedule: undefined;
+  CourseDetail: { course: any; relatedCourses?: any[] };
+};
+
+// ==================== Stack Navigators ====================
+const ScheduleStack = createNativeStackNavigator<ScheduleStackParamList>();
+
 // ==================== 常量 ====================
 const TAB_BAR_HEIGHT = 64;
 const TAB_BAR_MARGIN = 14;
@@ -41,19 +51,32 @@ const TAB_BAR_FLOATING_MARGIN = 12;
 // ==================== 组件 ====================
 
 /**
- * 简化的 Stack Navigator 包装
+ * Schedule Stack Navigator 组件
  */
-function SimpleStackNavigator({ 
+function ScheduleStackNavigatorComponent() {
-  children, 
-  screenName 
-}: { 
-  children: React.ReactNode; 
-  screenName: string;
-}) {
   return (
-    <View style={styles.stackContainer}>
+    <ScheduleStack.Navigator
-      {children}
+      screenOptions={{
-    </View>
+        headerShown: false,
+      }}
+    >
+      <ScheduleStack.Screen
+        name="Schedule"
+        component={ScheduleScreen}
+        options={{
+          title: '课表',
+        }}
+      />
+      <ScheduleStack.Screen
+        name="CourseDetail"
+        component={CourseDetailScreen}
+        options={{
+          headerShown: false,
+          presentation: 'transparentModal',
+          animation: 'fade',
+        }}
+      />
+    </ScheduleStack.Navigator>
   );
 }
 
@@ -83,7 +106,7 @@ export function SimpleMobileTabNavigator() {
       case 'MessageTab':
         return <MessageListScreen />;
       case 'ScheduleTab':
-        return <ScheduleScreen />;
+        return <ScheduleStackNavigatorComponent />;
       case 'ProfileTab':
         return <ProfileScreen />;
       default:

src/navigation/types.ts

@@ -106,6 +106,7 @@ export type RootStackParamList = {
     userName?: string;
     userAvatar?: string | null;
   };
+  QRCodeConfirm: { sessionId: string };
 };
 
 // ==================== 全局类型声明 ====================

src/presentation/hooks/responsive/MIGRATION.md

@@ -1,223 +0,0 @@
-# useResponsive 拆分迁移指南
-
-## 概述
-
-原有的 `useResponsive.ts` (485行) 已被拆分为多个专注的 hooks，以提高代码的可维护性和性能。
-
-## 新目录结构
-
-```
-src/presentation/hooks/responsive/
-├── types.ts                 # 共享类型定义
-├── useBreakpoint.ts         # 断点检测
-├── useScreenSize.ts         # 屏幕尺寸
-├── useOrientation.ts        # 方向检测
-├── usePlatform.ts           # 平台检测
-├── useResponsiveValue.ts    # 响应式值映射
-├── useResponsiveSpacing.ts  # 响应式间距
-├── useColumnCount.ts        # 列数计算
-├── useMediaQuery.ts         # 媒体查询
-├── useBreakpointCheck.ts    # 断点范围检查 (兼容层)
-├── useResponsive.ts         # 兼容层 (保持向后兼容)
-└── index.ts                 # 统一导出
-```
-
-## 新 Hook API 说明
-
-### useBreakpoint - 断点检测
-
-```typescript
-import { useBreakpoint, useFineBreakpoint } from '../presentation/hooks/responsive';
-
-// 基础断点: 'mobile' | 'tablet' | 'desktop' | 'wide'
-const breakpoint = useBreakpoint();
-
-// 细粒度断点: 'xs' | 'sm' | 'md' | 'lg' | 'xl' | '2xl' | '3xl' | '4xl'
-const fineBreakpoint = useFineBreakpoint();
-```
-
-### useScreenSize - 屏幕尺寸
-
-```typescript
-import { useScreenSize, useWindowDimensions } from '../presentation/hooks/responsive';
-
-// 完整屏幕尺寸信息
-const { 
-  width, height, 
-  breakpoint, fineBreakpoint,
-  isMobile, isTablet, isDesktop, isWide 
-} = useScreenSize();
-
-// 仅获取窗口尺寸
-const { width, height, scale, fontScale } = useWindowDimensions();
-```
-
-### useOrientation - 方向检测
-
-```typescript
-import { useOrientation } from '../presentation/hooks/responsive';
-
-const { orientation, isPortrait, isLandscape } = useOrientation();
-```
-
-### usePlatform - 平台检测
-
-```typescript
-import { usePlatform } from '../presentation/hooks/responsive';
-
-const { OS, isWeb, isIOS, isAndroid, isNative } = usePlatform();
-```
-
-### useResponsiveValue - 响应式值
-
-```typescript
-import { useResponsiveValue } from '../presentation/hooks/responsive';
-
-// 根据断点返回不同值
-const padding = useResponsiveValue({ xs: 8, md: 16, lg: 24 });
-
-// 响应式样式
-const style = useResponsiveStyle({
-  padding: { xs: 8, md: 16, lg: 24 },
-  fontSize: { xs: 14, lg: 16 }
-});
-```
-
-### useResponsiveSpacing - 响应式间距
-
-```typescript
-import { useResponsiveSpacing } from '../presentation/hooks/responsive';
-
-const gap = useResponsiveSpacing({ xs: 8, md: 16, lg: 24 });
-```
-
-### useColumnCount - 列数计算
-
-```typescript
-import { useColumnCount } from '../presentation/hooks/responsive';
-
-const columns = useColumnCount({ xs: 1, sm: 2, md: 3, lg: 4 });
-```
-
-### useBreakpointGTE / useBreakpointLT - 断点范围检查
-
-```typescript
-import { useBreakpointGTE, useBreakpointLT, useBreakpointBetween } from '../presentation/hooks/responsive';
-
-const isMediumUp = useBreakpointGTE('md');
-const isMobileOnly = useBreakpointLT('lg');
-const isTabletRange = useBreakpointBetween('md', 'lg');
-```
-
-### useMediaQuery - 媒体查询
-
-```typescript
-import { useMediaQuery } from '../presentation/hooks/responsive';
-
-const isMinWidth768 = useMediaQuery({ minWidth: 768 });
-const isPortrait = useMediaQuery({ orientation: 'portrait' });
-```
-
-## 迁移示例
-
-### 示例 1: 使用 useResponsive (旧)
-
-```typescript
-import { useResponsive, useResponsiveValue, useResponsiveSpacing } from '../hooks';
-
-function Component() {
-  const { width, isMobile, isTablet, isDesktop, isWide } = useResponsive();
-  const padding = useResponsiveSpacing({ xs: 8, md: 16 });
-  
-  return <View style={{ padding }} />;
-}
-```
-
-### 示例 2: 使用新专注 hooks (推荐)
-
-```typescript
-import { 
-  useScreenSize, 
-  useResponsiveSpacing 
-} from '../presentation/hooks/responsive';
-
-function Component() {
-  const { width, isMobile, isTablet, isDesktop, isWide } = useScreenSize();
-  const padding = useResponsiveSpacing({ xs: 8, md: 16 });
-  
-  return <View style={{ padding }} />;
-}
-```
-
-### 示例 3: 仅使用部分功能 (性能优化)
-
-```typescript
-import { useBreakpoint, usePlatform } from '../presentation/hooks/responsive';
-
-function Component() {
-  // 只订阅断点变化，不订阅尺寸变化
-  const breakpoint = useBreakpoint();
-  const { isIOS } = usePlatform(); // 平台不会变化，只计算一次
-  
-  return <View />;
-}
-```
-
-## 性能优势
-
-1. **按需订阅**: 只使用需要的功能，避免不必要的重渲染
-2. **细粒度更新**: 每个 hook 独立管理状态
-3. **平台常量**: usePlatform 返回常量，不会触发重渲染
-
-## 向后兼容
-
-原有的 `useResponsive` 仍然可用，但标记为 `@deprecated`：
-
-```typescript
-import { useResponsive } from '../hooks'; // 仍然可用
-
-function Component() {
-  const { width, height, isMobile, platform } = useResponsive(); // 仍然可用
-  return <View />;
-}
-```
-
-## 工具函数
-
-```typescript
-import { 
-  getBreakpoint, 
-  getFineBreakpoint,
-  isBreakpointGTE,
-  isBreakpointLT 
-} from '../presentation/hooks/responsive';
-
-// 非 hooks 版本，用于工具函数
-const breakpoint = getBreakpoint(800);
-const fineBreakpoint = getFineBreakpoint(800);
-const isGTE = isBreakpointGTE('md', 'sm');
-```
-
-## 类型导出
-
-```typescript
-import type { 
-  BreakpointKey,
-  FineBreakpointKey,
-  ResponsiveValue,
-  Orientation,
-  PlatformInfo,
-  ScreenSize,
-  MediaQueryOptions,
-  ResponsiveInfo, // 兼容层
-} from '../presentation/hooks/responsive';
-```
-
-## 常量
-
-```typescript
-import { BREAKPOINTS, FINE_BREAKPOINTS } from '../presentation/hooks/responsive';
-
-// BREAKPOINTS = { mobile: 0, tablet: 768, desktop: 1024, wide: 1440 }
-// FINE_BREAKPOINTS = { xs: 0, sm: 375, md: 414, lg: 768, xl: 1024, '2xl': 1280, '3xl': 1440, '4xl': 1920 }
-```

src/screens/auth/LoginScreen.tsx

@@ -188,7 +188,7 @@ export const LoginScreen: React.FC = () => {
       </View>
       
       {/* 品牌名称 - 优化大屏排版 */}
-      <Text style={[styles.appName, isSplitLayout && styles.splitAppName]}>胡萝卜</Text>
+      <Text style={[styles.appName, isSplitLayout && styles.splitAppName]}>萝卜社区</Text>
       <Text style={[styles.subtitle, isSplitLayout && styles.splitSubtitle]}>发现有趣的内容，结识志同道合的朋友</Text>
       
       {/* 装饰元素 - 大屏模式改为水平排列 + 大幅放大 */}
@@ -431,7 +431,7 @@ export const LoginScreen: React.FC = () => {
                   color="#FFF" 
                 />
               </View>
-              <Text style={[styles.appName, { fontSize: appNameSize }]}>胡萝卜</Text>
+              <Text style={[styles.appName, { fontSize: appNameSize }]}>萝卜社区</Text>
               <Text style={styles.subtitle}>发现有趣的内容，结识志同道合的朋友</Text>
             </Animated.View>
 

src/screens/auth/QRCodeConfirmScreen.tsx

@@ -0,0 +1,288 @@
+import React, { useState, useEffect } from 'react';
+import {
+  View,
+  Text,
+  StyleSheet,
+  TouchableOpacity,
+  Image,
+  ActivityIndicator,
+  Alert,
+} from 'react-native';
+import { SafeAreaView } from 'react-native-safe-area-context';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { useRoute, useNavigation, RouteProp } from '@react-navigation/native';
+import { NativeStackNavigationProp } from '@react-navigation/native-stack';
+import { RootStackParamList } from '../../navigation/types';
+import { qrcodeApi } from '../../services/authService';
+import { colors, spacing, fontSizes, borderRadius } from '../../theme';
+
+type QRCodeConfirmRouteProp = RouteProp<RootStackParamList, 'QRCodeConfirm'>;
+type NavigationProp = NativeStackNavigationProp<RootStackParamList>;
+
+export const QRCodeConfirmScreen: React.FC = () => {
+  const route = useRoute<QRCodeConfirmRouteProp>();
+  const navigation = useNavigation<NavigationProp>();
+  const { sessionId } = route.params;
+
+  const [loading, setLoading] = useState(false);
+  const [userInfo, setUserInfo] = useState<{ id: string; nickname: string; avatar: string } | null>(null);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    // 扫码
+    handleScan();
+  }, []);
+
+  const handleScan = async () => {
+    try {
+      setLoading(true);
+      const response = await qrcodeApi.scan(sessionId);
+      setUserInfo(response.user);
+    } catch (err: any) {
+      const errorMsg = err.response?.data?.message || '扫码失败';
+      setError(errorMsg);
+      Alert.alert('扫码失败', errorMsg, [
+        { text: '确定', onPress: () => navigation.goBack() }
+      ]);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleConfirm = async () => {
+    try {
+      setLoading(true);
+      await qrcodeApi.confirm(sessionId);
+      Alert.alert('登录成功', '网页端已登录', [
+        { text: '确定', onPress: () => navigation.goBack() }
+      ]);
+    } catch (err: any) {
+      const errorMsg = err.response?.data?.message || '确认登录失败';
+      Alert.alert('登录失败', errorMsg);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleCancel = async () => {
+    try {
+      await qrcodeApi.cancel(sessionId);
+    } catch (err) {
+      // 忽略取消错误
+    }
+    navigation.goBack();
+  };
+
+  if (loading && !userInfo) {
+    return (
+      <SafeAreaView style={styles.container}>
+        <View style={styles.loadingContainer}>
+          <ActivityIndicator size="large" color={colors.primary.main} />
+          <Text style={styles.loadingText}>正在扫码...</Text>
+        </View>
+      </SafeAreaView>
+    );
+  }
+
+  if (error) {
+    return (
+      <SafeAreaView style={styles.container}>
+        <View style={styles.errorContainer}>
+          <MaterialCommunityIcons name="alert-circle" size={64} color={colors.error.main} />
+          <Text style={styles.errorText}>{error}</Text>
+          <TouchableOpacity style={styles.backButton} onPress={() => navigation.goBack()}>
+            <Text style={styles.backButtonText}>返回</Text>
+          </TouchableOpacity>
+        </View>
+      </SafeAreaView>
+    );
+  }
+
+  return (
+    <SafeAreaView style={styles.container}>
+      <View style={styles.header}>
+        <TouchableOpacity onPress={handleCancel} style={styles.closeButton}>
+          <MaterialCommunityIcons name="close" size={24} color="#666" />
+        </TouchableOpacity>
+        <Text style={styles.headerTitle}>确认登录</Text>
+        <View style={styles.placeholder} />
+      </View>
+
+      <View style={styles.content}>
+        <View style={styles.infoCard}>
+          <Text style={styles.infoText}>您正在登录网页端</Text>
+          
+          {userInfo && (
+            <View style={styles.userInfo}>
+              {userInfo.avatar ? (
+                <Image source={{ uri: userInfo.avatar }} style={styles.avatar} />
+              ) : (
+                <View style={styles.avatarPlaceholder}>
+                  <MaterialCommunityIcons name="account" size={40} color="#999" />
+                </View>
+              )}
+              <Text style={styles.nickname}>{userInfo.nickname}</Text>
+            </View>
+          )}
+        </View>
+
+        <View style={styles.buttonContainer}>
+          <TouchableOpacity
+            style={[styles.button, styles.confirmButton]}
+            onPress={handleConfirm}
+            disabled={loading}
+          >
+            {loading ? (
+              <ActivityIndicator color="#fff" />
+            ) : (
+              <Text style={styles.confirmButtonText}>确认登录</Text>
+            )}
+          </TouchableOpacity>
+
+          <TouchableOpacity
+            style={[styles.button, styles.cancelButton]}
+            onPress={handleCancel}
+            disabled={loading}
+          >
+            <Text style={styles.cancelButtonText}>取消</Text>
+          </TouchableOpacity>
+        </View>
+      </View>
+    </SafeAreaView>
+  );
+};
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: '#f5f5f5',
+  },
+  header: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+    paddingHorizontal: spacing.md,
+    paddingVertical: spacing.sm,
+    backgroundColor: '#fff',
+    borderBottomWidth: 1,
+    borderBottomColor: '#eee',
+  },
+  closeButton: {
+    padding: spacing.sm,
+  },
+  headerTitle: {
+    fontSize: fontSizes.lg,
+    fontWeight: '600',
+    color: '#333',
+  },
+  placeholder: {
+    width: 40,
+  },
+  content: {
+    flex: 1,
+    padding: spacing.lg,
+    justifyContent: 'center',
+  },
+  infoCard: {
+    backgroundColor: '#fff',
+    borderRadius: borderRadius.lg,
+    padding: spacing.xl,
+    alignItems: 'center',
+    marginBottom: spacing.xl,
+    shadowColor: '#000',
+    shadowOffset: { width: 0, height: 2 },
+    shadowOpacity: 0.1,
+    shadowRadius: 4,
+    elevation: 3,
+  },
+  infoText: {
+    fontSize: fontSizes.md,
+    color: '#666',
+    marginBottom: spacing.lg,
+  },
+  userInfo: {
+    alignItems: 'center',
+  },
+  avatar: {
+    width: 80,
+    height: 80,
+    borderRadius: 40,
+    marginBottom: spacing.md,
+  },
+  avatarPlaceholder: {
+    width: 80,
+    height: 80,
+    borderRadius: 40,
+    backgroundColor: '#f0f0f0',
+    justifyContent: 'center',
+    alignItems: 'center',
+    marginBottom: spacing.md,
+  },
+  nickname: {
+    fontSize: fontSizes.lg,
+    fontWeight: '600',
+    color: '#333',
+  },
+  buttonContainer: {
+    gap: spacing.md,
+  },
+  button: {
+    paddingVertical: spacing.md,
+    paddingHorizontal: spacing.xl,
+    borderRadius: borderRadius.md,
+    alignItems: 'center',
+  },
+  confirmButton: {
+    backgroundColor: colors.primary.main,
+  },
+  confirmButtonText: {
+    color: '#fff',
+    fontSize: fontSizes.md,
+    fontWeight: '600',
+  },
+  cancelButton: {
+    backgroundColor: '#fff',
+    borderWidth: 1,
+    borderColor: '#ddd',
+  },
+  cancelButtonText: {
+    color: '#666',
+    fontSize: fontSizes.md,
+  },
+  loadingContainer: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  loadingText: {
+    marginTop: spacing.md,
+    fontSize: fontSizes.md,
+    color: '#666',
+  },
+  errorContainer: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+    padding: spacing.xl,
+  },
+  errorText: {
+    marginTop: spacing.md,
+    fontSize: fontSizes.md,
+    color: '#666',
+    textAlign: 'center',
+  },
+  backButton: {
+    marginTop: spacing.xl,
+    paddingVertical: spacing.md,
+    paddingHorizontal: spacing.xl,
+    backgroundColor: colors.primary.main,
+    borderRadius: borderRadius.md,
+  },
+  backButtonText: {
+    color: '#fff',
+    fontSize: fontSizes.md,
+    fontWeight: '600',
+  },
+});
+
+export default QRCodeConfirmScreen;

src/screens/auth/RegisterScreen.tsx

@@ -268,8 +268,8 @@ export const RegisterScreen: React.FC = () => {
       </View>
       
       {/* 品牌名称 - 优化大屏排版 */}
-      <Text style={[styles.title, isSplitLayout && styles.splitTitle]}>创建账号</Text>
+      <Text style={[styles.title, isSplitLayout && styles.splitTitle]}>加入萝卜社区</Text>
-      <Text style={[styles.subtitle, isSplitLayout && styles.splitSubtitle]}>加入胡萝卜，开始你的旅程</Text>
+      <Text style={[styles.subtitle, isSplitLayout && styles.splitSubtitle]}>加入萝卜社区，发现有趣的内容</Text>
       
       {/* 装饰元素 - 大屏模式改为水平排列 + 大幅放大 */}
       <View style={[styles.leftPanelDecorBottom, isSplitLayout && styles.splitLeftPanelDecorBottom]}>
@@ -720,8 +720,8 @@ export const RegisterScreen: React.FC = () => {
                   color="#FFF"
                 />
               </View>
-              <Text style={[styles.title, { fontSize: titleSize }]}>创建账号</Text>
+              <Text style={[styles.title, { fontSize: titleSize }]}>加入萝卜社区</Text>
-              <Text style={styles.subtitle}>加入胡萝卜，开始你的旅程</Text>
+              <Text style={styles.subtitle}>加入萝卜社区，发现有趣的内容</Text>
             </Animated.View>
 
             {/* 表单 */}

src/screens/message/ChatScreen.tsx

@@ -19,15 +19,15 @@
  * - ChatInput.tsx: 输入框组件
  */
 
-import React, { useState, useEffect, useMemo, useCallback } from 'react';
+import React, { useState, useEffect, useMemo, useCallback, useRef } from 'react';
 import {
   View,
-  FlatList,
   TouchableWithoutFeedback,
   ActivityIndicator,
   KeyboardAvoidingView,
   Platform,
 } from 'react-native';
+import { FlashList } from "@shopify/flash-list";
 import { useNavigation } from '@react-navigation/native';
 import { StatusBar } from 'expo-status-bar';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
@@ -224,6 +224,7 @@ export const ChatScreen: React.FC = () => {
       formatTime={formatTime}
       shouldShowTime={shouldShowTime}
       onImagePress={handleImagePress}
+      onReply={handleReplyMessage}
     />
   );
 
@@ -268,25 +269,23 @@ export const ChatScreen: React.FC = () => {
               <ActivityIndicator size="large" color={colors.primary.main} />
             </View>
           ) : (
-            <FlatList
+            <FlashList
               ref={flatListRef}
               data={messages}
               renderItem={renderMessage}
-              keyExtractor={item => String(item.id)}
+              keyExtractor={(item: any) => String(item.id)}
-              contentContainerStyle={listContentStyle}
+              contentContainerStyle={listContentStyle as any}
               showsVerticalScrollIndicator={false}
               keyboardShouldPersistTaps="handled"
               refreshing={loadingMore}
               onRefresh={hasMoreHistory ? loadMoreHistory : undefined}
-              progressViewOffset={0}
+              // @ts-ignore FlashList 类型定义问题：estimatedItemSize 是必需属性但类型定义缺失
-              onContentSizeChange={handleMessageListContentSizeChange}
+              estimatedItemSize={80}
+              maintainVisibleContentPosition={{
+                minIndexForVisible: 0,
+                autoscrollToTopThreshold: undefined,
+              } as any}
               onScroll={handleMessageListScroll}
-              scrollEventThrottle={16}
-              // 优化渲染性能
-              initialNumToRender={15}
-              maxToRenderPerBatch={10}
-              windowSize={10}
-              removeClippedSubviews={true}
             />
           )}
         </View>

src/screens/message/MessageListScreen.tsx

@@ -42,6 +42,8 @@ import { getUserCache } from '../../services/database';
 import { EmbeddedChat } from './components/EmbeddedChat';
 // 导入 NotificationsScreen 用于在内部显示
 import { NotificationsScreen } from './NotificationsScreen';
+// 导入扫码组件
+import { QRCodeScanner } from '../../components/business/QRCodeScanner';
 
 type NavigationProp = NativeStackNavigationProp<RootStackParamList>;
 type MessageNavProp = NativeStackNavigationProp<MessageStackParamList>;
@@ -182,6 +184,7 @@ export const MessageListScreen: React.FC = () => {
   const [isSearching, setIsSearching] = useState(false);
   const [activeSearchTab, setActiveSearchTab] = useState<'chat' | 'user'>('chat');
   const [actionMenuVisible, setActionMenuVisible] = useState(false);
+  const [scannerVisible, setScannerVisible] = useState(false);
 
   // 系统通知显示状态 - 用于在移动端显示通知页面
   const [showNotifications, setShowNotifications] = useState(false);
@@ -356,7 +359,7 @@ export const MessageListScreen: React.FC = () => {
     setActionMenuVisible(true);
   };
 
-  const runMenuAction = (action: 'join' | 'create' | 'readAll') => {
+  const runMenuAction = (action: 'join' | 'create' | 'readAll' | 'scanQRCode') => {
     setActionMenuVisible(false);
     if (action === 'join') {
       handleJoinGroup();
@@ -366,6 +369,10 @@ export const MessageListScreen: React.FC = () => {
       handleCreateGroup();
       return;
     }
+    if (action === 'scanQRCode') {
+      setScannerVisible(true);
+      return;
+    }
     handleMarkAllRead();
   };
 
@@ -911,6 +918,10 @@ export const MessageListScreen: React.FC = () => {
     <Modal visible={actionMenuVisible} transparent animationType="fade" onRequestClose={() => setActionMenuVisible(false)}>
       <Pressable style={styles.actionMenuBackdrop} onPress={() => setActionMenuVisible(false)}>
         <View style={styles.actionMenu}>
+          <TouchableOpacity style={styles.actionMenuItem} onPress={() => runMenuAction('scanQRCode')}>
+            <MaterialCommunityIcons name="qrcode-scan" size={21} color="#444" />
+            <Text style={styles.actionMenuText}>扫码登录</Text>
+          </TouchableOpacity>
           <TouchableOpacity style={styles.actionMenuItem} onPress={() => runMenuAction('join')}>
             <MaterialCommunityIcons name="account-plus-outline" size={21} color="#444" />
             <Text style={styles.actionMenuText}>加入群聊</Text>
@@ -980,6 +991,7 @@ export const MessageListScreen: React.FC = () => {
         renderConversationList()
       )}
       {renderActionMenu()}
+      <QRCodeScanner visible={scannerVisible} onClose={() => setScannerVisible(false)} />
     </SafeAreaView>
   );
 };

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

@@ -4,7 +4,7 @@
  * 支持响应式布局（宽屏下优化显示）
  */
 
-import React, { useRef, useMemo } from 'react';
+import React, { useRef, useMemo, useCallback } from 'react';
 import { 
   View, 
   TouchableOpacity, 
@@ -22,6 +22,14 @@ import { useResponsive, useBreakpointGTE } from '../../../../hooks/useResponsive
 import { MessageBubbleProps, SenderInfo, MenuPosition, GroupMessage } from './types';
 import { MessageSegmentsRenderer } from './SegmentRenderer';
 import { MessageSegment, ImageSegmentData, extractTextFromSegments } from '../../../../types/dto';
+import { SwipeableMessageBubble } from './SwipeableMessageBubble';
+import { 
+  getBubbleBorderRadius, 
+  getMessageGroupPosition, 
+  shouldShowSenderInfo,
+  bubbleColors,
+  bubbleStyles,
+} from './bubbleStyles';
 
 // 获取屏幕宽度
 const { width: SCREEN_WIDTH } = Dimensions.get('window');
@@ -50,6 +58,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
   formatTime,
   shouldShowTime,
   onImagePress,
+  onReply,
 }) => {
   const bubbleRef = useRef<View>(null);
   const pressPositionRef = useRef({ x: 0, y: 0 });
@@ -343,6 +352,13 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
     );
   };
 
+  // 处理滑动回复
+  const handleSwipeReply = useCallback(() => {
+    if (onReply) {
+      onReply(message);
+    }
+  }, [onReply, message]);
+
   // 系统通知消息渲染
   if (isSystemNotice) {
     return (
@@ -361,7 +377,8 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
     );
   }
 
-  return (
+  // 消息内容渲染
+  const messageContent = (
     <TouchableOpacity
       onPressIn={handlePressIn}
       onLongPress={handleLongPress}
@@ -444,6 +461,17 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
       </View>
     </TouchableOpacity>
   );
+
+  // 使用 SwipeableMessageBubble 包裹消息内容
+  return (
+    <SwipeableMessageBubble
+      isMe={isMe}
+      onReply={handleSwipeReply}
+      enabled={!!onReply}
+    >
+      {messageContent}
+    </SwipeableMessageBubble>
+  );
 };
 
 // Segment 消息的特殊样式 - 自适应宽度
@@ -460,4 +488,16 @@ const segmentStyles = StyleSheet.create({
   },
 });
 
-export default MessageBubble;
+// 使用 React.memo 优化渲染性能
+export default React.memo(MessageBubble, (prevProps, nextProps) => {
+  // 自定义比较逻辑：只比较关键属性
+  return (
+    prevProps.message.id === nextProps.message.id &&
+    prevProps.message.status === nextProps.message.status &&
+    prevProps.selectedMessageId === nextProps.selectedMessageId &&
+    prevProps.currentUserId === nextProps.currentUserId &&
+    prevProps.isGroupChat === nextProps.isGroupChat &&
+    prevProps.otherUserLastReadSeq === nextProps.otherUserLastReadSeq &&
+    prevProps.index === nextProps.index
+  );
+});

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

@@ -290,6 +290,7 @@ const ImageSegment: React.FC<{
         contentFit="cover"
         cachePolicy="disk"
         priority="normal"
+        transition={200}
         onError={() => {
           setLoadError(true);
         }}

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

@@ -0,0 +1,157 @@
+/**
+ * 可滑动的消息气泡容器
+ * 实现滑动回复手势功能 - 严格单向滑动，无抖动
+ */
+
+import React, { useRef, useCallback } from 'react';
+import { View, StyleSheet, Animated } from 'react-native';
+import { MaterialCommunityIcons } from '@expo/vector-icons';
+import { PanGestureHandler, State } from 'react-native-gesture-handler';
+import * as Haptics from 'expo-haptics';
+import { colors } from '../../../../theme';
+
+// 滑动阈值
+const SWIPE_THRESHOLD = 30;
+const MAX_SWIPE_DISTANCE = 50;
+
+interface SwipeableMessageBubbleProps {
+  children: React.ReactNode;
+  isMe: boolean;
+  onReply: () => void;
+  enabled?: boolean;
+}
+
+export const SwipeableMessageBubble: React.FC<SwipeableMessageBubbleProps> = ({
+  children,
+  isMe,
+  onReply,
+  enabled = true,
+}) => {
+  const translateX = useRef(new Animated.Value(0)).current;
+  const hasTriggeredRef = useRef(false);
+
+  // 处理手势事件 - 使用原生驱动，不干预值
+  const onGestureEvent = Animated.event(
+    [{ nativeEvent: { translationX: translateX } }],
+    { useNativeDriver: true }
+  );
+
+  // 处理手势状态变化
+  const onHandlerStateChange = useCallback((event: any) => {
+    const { nativeEvent } = event;
+    
+    if (nativeEvent.state === State.END) {
+      const translationX = nativeEvent.translationX;
+      
+      // 只允许特定方向的滑动
+      const shouldTrigger = isMe 
+        ? translationX < -SWIPE_THRESHOLD  // 自己消息只能向左滑
+        : translationX > SWIPE_THRESHOLD;  // 对方消息只能向右滑
+      
+      if (shouldTrigger && !hasTriggeredRef.current) {
+        hasTriggeredRef.current = true;
+        
+        // 触觉反馈
+        Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Light);
+        
+        // 立即触发回复
+        onReply();
+        
+        // 重置标记
+        setTimeout(() => {
+          hasTriggeredRef.current = false;
+        }, 300);
+      }
+      
+      // 立即回到原位
+      translateX.setValue(0);
+    }
+  }, [isMe, onReply]);
+
+  // 计算回复图标的透明度 - 只在允许的方向显示
+  const iconOpacity = translateX.interpolate({
+    inputRange: isMe 
+      ? [-MAX_SWIPE_DISTANCE, -SWIPE_THRESHOLD, 0, 10] 
+      : [-10, 0, SWIPE_THRESHOLD, MAX_SWIPE_DISTANCE],
+    outputRange: isMe ? [1, 0.8, 0, 0] : [0, 0, 0.8, 1],
+    extrapolate: 'clamp',
+  });
+
+  // 计算消息的位移 - 限制在允许的方向
+  const clampedTranslateX = translateX.interpolate({
+    inputRange: isMe 
+      ? [-MAX_SWIPE_DISTANCE - 10, -MAX_SWIPE_DISTANCE, 0, 10] 
+      : [-10, 0, MAX_SWIPE_DISTANCE, MAX_SWIPE_DISTANCE + 10],
+    outputRange: isMe 
+      ? [-MAX_SWIPE_DISTANCE, -MAX_SWIPE_DISTANCE, 0, 0] 
+      : [0, 0, MAX_SWIPE_DISTANCE, MAX_SWIPE_DISTANCE],
+    extrapolate: 'clamp',
+  });
+
+  // 如果禁用手势，直接返回子元素
+  if (!enabled) {
+    return <>{children}</>;
+  }
+
+  return (
+    <View style={styles.container}>
+      {/* 回复图标 - 在消息后面 */}
+      <Animated.View
+        style={[
+          styles.replyIconContainer,
+          isMe ? styles.replyIconLeft : styles.replyIconRight,
+          {
+            opacity: iconOpacity,
+          },
+        ]}
+      >
+        <MaterialCommunityIcons
+          name="reply"
+          size={20}
+          color={colors.primary.main}
+        />
+      </Animated.View>
+      
+      {/* 可滑动的消息内容 */}
+      <PanGestureHandler
+        onGestureEvent={onGestureEvent}
+        onHandlerStateChange={onHandlerStateChange}
+        activeOffsetX={isMe ? [-10, 9999] : [-9999, 10]}
+        failOffsetY={[-20, 20]}
+      >
+        <Animated.View
+          style={{
+            transform: [{ translateX: clampedTranslateX }],
+          }}
+        >
+          {children}
+        </Animated.View>
+      </PanGestureHandler>
+    </View>
+  );
+};
+
+const styles = StyleSheet.create({
+  container: {
+    position: 'relative',
+  },
+  replyIconContainer: {
+    position: 'absolute',
+    top: '50%',
+    marginTop: -15,
+    width: 30,
+    height: 30,
+    borderRadius: 15,
+    backgroundColor: 'rgba(255, 107, 53, 0.1)',
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  replyIconLeft: {
+    left: 8,
+  },
+  replyIconRight: {
+    right: 8,
+  },
+});
+
+export default SwipeableMessageBubble;

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

@@ -0,0 +1,270 @@
+/**
+ * 消息气泡样式工具
+ * 参考 Element X 设计，实现动态圆角和现代化气泡样式
+ */
+
+import { StyleSheet, ViewStyle, TextStyle } from 'react-native';
+import { colors, spacing } from '../../../../theme';
+
+// 气泡圆角大小（参考 Element X: 12pt）
+export const BUBBLE_RADIUS = 16;
+
+// 气泡颜色方案（参考 Element X 的语义化颜色）
+export const bubbleColors = {
+  // 自己发送的消息
+  outgoing: {
+    background: '#E8E8E8', // Element X 风格：灰色系
+    text: '#1A1A1A',
+  },
+  // 收到的消息
+  incoming: {
+    background: '#FFFFFF',
+    text: '#1A1A1A',
+  },
+  // 被回复的消息高亮
+  replyHighlight: {
+    background: 'rgba(255, 107, 53, 0.08)',
+    borderLeft: '#FF6B35',
+  },
+};
+
+// 消息在组中的位置类型
+export type MessageGroupPosition = 'single' | 'first' | 'middle' | 'last';
+
+/**
+ * 根据消息在组中的位置获取圆角样式
+ * 参考 Element X 的动态圆角逻辑
+ */
+export const getBubbleBorderRadius = (
+  isMe: boolean,
+  position: MessageGroupPosition
+): ViewStyle => {
+  const radius = BUBBLE_RADIUS;
+  
+  if (isMe) {
+    // 自己发送的消息
+    switch (position) {
+      case 'single':
+        return {
+          borderTopLeftRadius: radius,
+          borderTopRightRadius: radius,
+          borderBottomLeftRadius: radius,
+          borderBottomRightRadius: 4, // 尖角在右下
+        };
+      case 'first':
+        return {
+          borderTopLeftRadius: radius,
+          borderTopRightRadius: radius,
+          borderBottomLeftRadius: radius,
+          borderBottomRightRadius: 4,
+        };
+      case 'middle':
+        return {
+          borderTopLeftRadius: radius,
+          borderTopRightRadius: 4,
+          borderBottomLeftRadius: radius,
+          borderBottomRightRadius: 4,
+        };
+      case 'last':
+        return {
+          borderTopLeftRadius: radius,
+          borderTopRightRadius: 4,
+          borderBottomLeftRadius: radius,
+          borderBottomRightRadius: radius,
+        };
+    }
+  } else {
+    // 收到的消息
+    switch (position) {
+      case 'single':
+        return {
+          borderTopLeftRadius: 4, // 尖角在左上
+          borderTopRightRadius: radius,
+          borderBottomLeftRadius: radius,
+          borderBottomRightRadius: radius,
+        };
+      case 'first':
+        return {
+          borderTopLeftRadius: 4,
+          borderTopRightRadius: radius,
+          borderBottomLeftRadius: 4,
+          borderBottomRightRadius: radius,
+        };
+      case 'middle':
+        return {
+          borderTopLeftRadius: 4,
+          borderTopRightRadius: radius,
+          borderBottomLeftRadius: 4,
+          borderBottomRightRadius: radius,
+        };
+      case 'last':
+        return {
+          borderTopLeftRadius: radius,
+          borderTopRightRadius: radius,
+          borderBottomLeftRadius: radius,
+          borderBottomRightRadius: radius,
+        };
+    }
+  }
+};
+
+/**
+ * 判断消息在组中的位置
+ */
+export const getMessageGroupPosition = (
+  index: number,
+  messages: Array<{ sender_id: string }>,
+  currentUserId: string
+): MessageGroupPosition => {
+  const currentMessage = messages[index];
+  if (!currentMessage) return 'single';
+  
+  const prevMessage = index > 0 ? messages[index - 1] : null;
+  const nextMessage = index < messages.length - 1 ? messages[index + 1] : null;
+  
+  const isSameSenderAsPrev = prevMessage && prevMessage.sender_id === currentMessage.sender_id;
+  const isSameSenderAsNext = nextMessage && nextMessage.sender_id === currentMessage.sender_id;
+  
+  if (!isSameSenderAsPrev && !isSameSenderAsNext) {
+    return 'single';
+  } else if (!isSameSenderAsPrev && isSameSenderAsNext) {
+    return 'first';
+  } else if (isSameSenderAsPrev && isSameSenderAsNext) {
+    return 'middle';
+  } else {
+    return 'last';
+  }
+};
+
+/**
+ * 判断是否显示发送者信息（只在组的第一条消息显示）
+ */
+export const shouldShowSenderInfo = (
+  index: number,
+  messages: Array<{ sender_id: string }>,
+): boolean => {
+  if (index === 0) return true;
+  
+  const currentMessage = messages[index];
+  const prevMessage = messages[index - 1];
+  
+  return prevMessage.sender_id !== currentMessage.sender_id;
+};
+
+/**
+ * 获取气泡基础样式
+ */
+export const getBubbleBaseStyle = (isMe: boolean): ViewStyle => ({
+  paddingHorizontal: spacing.md,
+  paddingVertical: spacing.sm + 4,
+  minWidth: 60,
+  maxWidth: '75%',
+  backgroundColor: isMe ? bubbleColors.outgoing.background : bubbleColors.incoming.background,
+  // Element X 风格的微妙阴影
+  shadowColor: '#000',
+  shadowOffset: { width: 0, height: 1 },
+  shadowOpacity: 0.06,
+  shadowRadius: 2,
+  elevation: 2,
+});
+
+/**
+ * 获取文本样式
+ */
+export const getBubbleTextStyle = (isMe: boolean): TextStyle => ({
+  color: isMe ? bubbleColors.outgoing.text : bubbleColors.incoming.text,
+  fontSize: 16,
+  lineHeight: 23,
+  letterSpacing: 0.2,
+  fontWeight: '400',
+});
+
+/**
+ * 消息气泡样式集合
+ */
+export const bubbleStyles = StyleSheet.create({
+  // 基础气泡
+  bubble: {
+    paddingHorizontal: spacing.md,
+    paddingVertical: spacing.sm + 4,
+    minWidth: 60,
+  },
+  
+  // 自己发送的消息
+  outgoing: {
+    backgroundColor: bubbleColors.outgoing.background,
+  },
+  
+  // 收到的消息
+  incoming: {
+    backgroundColor: bubbleColors.incoming.background,
+  },
+  
+  // 文本样式
+  text: {
+    fontSize: 16,
+    lineHeight: 23,
+    letterSpacing: 0.2,
+    fontWeight: '400',
+  },
+  
+  // 阴影样式（Element X 风格）
+  shadow: {
+    shadowColor: '#000',
+    shadowOffset: { width: 0, height: 1 },
+    shadowOpacity: 0.06,
+    shadowRadius: 2,
+    elevation: 2,
+  },
+  
+  // 长按反馈阴影
+  longPressShadow: {
+    shadowColor: '#000',
+    shadowOffset: { width: 0, height: 3 },
+    shadowOpacity: 0.12,
+    shadowRadius: 8,
+    elevation: 6,
+  },
+  
+  // 被回复消息的高亮边框
+  replyHighlight: {
+    borderLeftWidth: 3,
+    borderLeftColor: colors.primary.main,
+    backgroundColor: bubbleColors.replyHighlight.background,
+  },
+  
+  // 已撤回消息
+  recalled: {
+    backgroundColor: '#F5F7FA',
+    borderWidth: 1,
+    borderColor: '#E8E8E8',
+    borderStyle: 'dashed',
+    borderRadius: 12,
+  },
+  
+  // 系统通知
+  systemNotice: {
+    alignItems: 'center',
+    marginVertical: spacing.sm,
+  },
+  systemNoticeText: {
+    fontSize: 12,
+    color: '#8E8E93',
+    backgroundColor: 'rgba(142, 142, 147, 0.12)',
+    paddingHorizontal: spacing.md,
+    paddingVertical: spacing.xs,
+    borderRadius: 12,
+    overflow: 'hidden',
+  },
+});
+
+export default {
+  BUBBLE_RADIUS,
+  bubbleColors,
+  getBubbleBorderRadius,
+  getMessageGroupPosition,
+  shouldShowSenderInfo,
+  getBubbleBaseStyle,
+  getBubbleTextStyle,
+  bubbleStyles,
+};

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

@@ -20,6 +20,7 @@ export { ChatHeader } from './ChatHeader';
 export { MessageBubble } from './MessageBubble';
 export { ChatInput } from './ChatInput';
 export { GroupInfoPanel } from './GroupInfoPanel';
+export { SwipeableMessageBubble } from './SwipeableMessageBubble';
 
 // Segment 渲染组件
 export {

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

@@ -86,6 +86,8 @@ export interface MessageBubbleProps {
   shouldShowTime: (index: number) => boolean;
   // 图片点击回调
   onImagePress?: (images: { id: string; url: string; thumbnail_url?: string; width?: number; height?: number }[], index: number) => void;
+  // 滑动回复回调
+  onReply?: (message: GroupMessage) => void;
 }
 
 // 输入框 Props
@@ -180,6 +182,14 @@ export interface ReplyPreviewProps {
   onCancel: () => void;
 }
 
+// 可滑动消息气泡 Props
+export interface SwipeableMessageBubbleProps {
+  children: React.ReactNode;
+  isMe: boolean;
+  onReply: () => void;
+  enabled?: boolean;
+}
+
 // ChatScreen 状态接口
 export interface ChatScreenState {
   // 基础状态

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

@@ -390,6 +390,16 @@ export const useChatScreen = () => {
       return;
     }
 
+    // 禁用自动滚动到底部，防止加载历史消息后滚动位置跳转
+    shouldAutoScrollOnEnterRef.current = false;
+    // 清除所有待执行的自动滚动定时器
+    autoScrollTimersRef.current.forEach(clearTimeout);
+    autoScrollTimersRef.current = [];
+
+    // 保存加载前的滚动位置和内容高度
+    const scrollYBefore = scrollPositionRef.current.scrollY;
+    const contentHeightBefore = scrollPositionRef.current.contentHeight;
+
     setLoadingMore(true);
 
     try {
@@ -400,6 +410,23 @@ export const useChatScreen = () => {
         const minSeq = Math.min(...messages.map(m => m.seq));
         setFirstSeq(minSeq);
       }
+
+      // 加载完成后，恢复滚动位置
+      // 使用 setTimeout 确保 FlashList 已经更新
+      setTimeout(() => {
+        if (flatListRef.current) {
+          // 计算新的滚动位置，保持相对位置不变
+          const newContentHeight = scrollPositionRef.current.contentHeight;
+          const heightDiff = newContentHeight - contentHeightBefore;
+          const newScrollY = scrollYBefore + heightDiff;
+          
+          // 滚动到计算后的位置
+          flatListRef.current.scrollToOffset({
+            offset: newScrollY,
+            animated: false,
+          });
+        }
+      }, 100);
     } catch (error) {
       console.error('加载历史消息失败:', error);
     } finally {
@@ -409,13 +436,19 @@ export const useChatScreen = () => {
 
   // 列表内容尺寸变化后触发首次自动滚动
   const handleMessageListContentSizeChange = useCallback((contentWidth: number, contentHeight: number) => {
+    // 如果是加载更多历史消息，不要自动滚动
+    if (loadingMore) {
+      return;
+    }
+    
     if (!shouldAutoScrollOnEnterRef.current) return;
-    if (loading || loadingMore) return;
+    if (loading) return;
     if (messages.length === 0) return;
 
     const prevContentHeight = scrollPositionRef.current.contentHeight;
     scrollPositionRef.current.contentHeight = contentHeight;
 
+    // 如果内容高度增加（加载了更多消息），不要自动滚动到底部
     if (prevContentHeight > 0 && contentHeight > prevContentHeight) {
       return;
     }

src/screens/profile/SettingsScreen.tsx

@@ -15,6 +15,7 @@ import {
 import { SafeAreaView } from 'react-native-safe-area-context';
 import { useNavigation } from '@react-navigation/native';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
+import Constants from 'expo-constants';
 import { colors, spacing, fontSizes, borderRadius } from '../../theme';
 import { useAuthStore } from '../../stores';
 import { Text, ResponsiveContainer } from '../../components/common';
@@ -30,6 +31,9 @@ interface SettingsItem {
   subtitle?: string;
 }
 
+// 获取应用版本号
+const APP_VERSION = Constants.expoConfig?.version || '1.0.0';
+
 // 设置分组配置
 const SETTINGS_GROUPS = [
   {
@@ -53,7 +57,7 @@ const SETTINGS_GROUPS = [
     title: '关于与帮助',
     icon: 'information-outline',
     items: [
-      { key: 'about', title: '关于我们', icon: 'information-outline', showArrow: true, subtitle: '版本 1.0.2' },
+      { key: 'about', title: '关于我们', icon: 'information-outline', showArrow: true, subtitle: `版本 ${APP_VERSION}` },
       { key: 'help', title: '帮助与反馈', icon: 'help-circle-outline', showArrow: true },
     ],
   },
@@ -183,7 +187,7 @@ export const SettingsScreen: React.FC = () => {
       {/* 底部版权信息 */}
       <View style={styles.footer}>
         <Text variant="caption" color={colors.text.hint}>
-          萝卜社区 v1.0.2
+          萝卜社区 v{APP_VERSION}
         </Text>
         <Text variant="caption" color={colors.text.hint} style={styles.copyright}>
           © 2024 Carrot BBS. All rights reserved.

src/services/authService.ts

@@ -432,5 +432,63 @@ class AuthService {
   }
 }
 
+// ── 二维码登录相关接口 ──
+
+export interface QRCodeSession {
+  session_id: string;
+  qrcode_url: string;
+  expires_in: number;
+  expires_at: number;
+}
+
+export interface ScanResponse {
+  user: {
+    id: string;
+    nickname: string;
+    avatar: string;
+  };
+}
+
+// 二维码登录 API（扩展 AuthService）
+export const qrcodeApi = {
+  /**
+   * 获取二维码
+   */
+  getQRCode: async (): Promise<QRCodeSession> => {
+    const response = await api.get<QRCodeSession>('/auth/qrcode');
+    return response.data;
+  },
+
+  /**
+   * 扫描二维码
+   */
+  scan: async (sessionId: string): Promise<ScanResponse> => {
+    const response = await api.post<ScanResponse>('/auth/qrcode/scan', {
+      session_id: sessionId,
+    });
+    return response.data;
+  },
+
+  /**
+   * 确认登录
+   */
+  confirm: async (sessionId: string): Promise<{ success: boolean }> => {
+    const response = await api.post<{ success: boolean }>('/auth/qrcode/confirm', {
+      session_id: sessionId,
+    });
+    return response.data;
+  },
+
+  /**
+   * 取消登录
+   */
+  cancel: async (sessionId: string): Promise<{ success: boolean }> => {
+    const response = await api.post<{ success: boolean }>('/auth/qrcode/cancel', {
+      session_id: sessionId,
+    });
+    return response.data;
+  },
+};
+
 // 导出认证服务实例
 export const authService = new AuthService();

src/utils/__tests__/optimisticUpdate.test.ts

@@ -1,287 +0,0 @@
-/**
- * 乐观更新工具函数测试
- */
-
-import { optimisticUpdate, simpleOptimisticUpdate, createOptimisticUpdaterFactory } from '../optimisticUpdate';
-
-// 模拟数据
-interface TestState {
-  posts: Array<{ id: string; likes: number; isLiked: boolean }>;
-  users: Array<{ id: string; isFollowing: boolean }>;
-}
-
-const initialState: TestState = {
-  posts: [
-    { id: '1', likes: 10, isLiked: false },
-    { id: '2', likes: 5, isLiked: true },
-  ],
-  users: [
-    { id: 'user1', isFollowing: false },
-    { id: 'user2', isFollowing: true },
-  ],
-};
-
-describe('optimisticUpdate', () => {
-  let currentState: TestState;
-
-  beforeEach(() => {
-    currentState = JSON.parse(JSON.stringify(initialState));
-  });
-
-  describe('成功场景', () => {
-    it('应该执行乐观更新并在API成功后保持更新', async () => {
-      const mockApiCall = jest.fn().mockResolvedValue({ success: true, likes: 11 });
-
-      const result = await optimisticUpdate<TestState, { success: boolean; likes: number }>({
-        getState: () => currentState,
-        optimisticUpdate: (state) => ({
-          ...state,
-          posts: state.posts.map((p) =>
-            p.id === '1' ? { ...p, likes: p.likes + 1, isLiked: true } : p
-          ),
-        }),
-        apiCall: mockApiCall,
-        onSuccess: (result, current) => ({
-          ...current,
-          posts: current.posts.map((p) =>
-            p.id === '1' ? { ...p, likes: result.likes } : p
-          ),
-        }),
-      });
-
-      // 验证API被调用
-      expect(mockApiCall).toHaveBeenCalledTimes(1);
-      // 验证返回结果
-      expect(result).toEqual({ success: true, likes: 11 });
-    });
-
-    it('应该在乐观更新后立即改变状态', async () => {
-      const mockApiCall = jest.fn().mockImplementation(() => {
-        // 在API调用期间验证状态已被乐观更新
-        expect(currentState.posts[0].isLiked).toBe(true);
-        expect(currentState.posts[0].likes).toBe(11);
-        return Promise.resolve({ success: true });
-      });
-
-      await optimisticUpdate<TestState, any>({
-        getState: () => currentState,
-        optimisticUpdate: (state) => {
-          const newState = {
-            ...state,
-            posts: state.posts.map((p) =>
-              p.id === '1' ? { ...p, likes: p.likes + 1, isLiked: true } : p
-            ),
-          };
-          currentState = newState; // 模拟状态更新
-          return newState;
-        },
-        apiCall: mockApiCall,
-      });
-    });
-  });
-
-  describe('失败回滚场景', () => {
-    it('应该在API失败时回滚到原始状态', async () => {
-      const mockApiCall = jest.fn().mockRejectedValue(new Error('Network error'));
-      const onError = jest.fn((error, original) => original);
-
-      const result = await optimisticUpdate<TestState, any>({
-        getState: () => currentState,
-        optimisticUpdate: (state) => ({
-          ...state,
-          posts: state.posts.map((p) =>
-            p.id === '1' ? { ...p, likes: p.likes + 1, isLiked: true } : p
-          ),
-        }),
-        apiCall: mockApiCall,
-        onError,
-        errorMessage: '点赞失败',
-      });
-
-      // 验证API被调用
-      expect(mockApiCall).toHaveBeenCalledTimes(1);
-      // 验证onError被调用
-      expect(onError).toHaveBeenCalledTimes(1);
-      expect(onError).toHaveBeenCalledWith(
-        expect.any(Error),
-        initialState
-      );
-      // 验证返回undefined（因为失败了）
-      expect(result).toBeUndefined();
-    });
-
-    it('应该在静默模式下不抛出错误', async () => {
-      const mockApiCall = jest.fn().mockRejectedValue(new Error('Network error'));
-
-      // 不应该抛出错误
-      await expect(
-        optimisticUpdate<TestState, any>({
-          getState: () => currentState,
-          optimisticUpdate: (state) => state,
-          apiCall: mockApiCall,
-          silent: true,
-        })
-      ).resolves.toBeUndefined();
-    });
-
-    it('应该在非静默模式下抛出错误', async () => {
-      const mockApiCall = jest.fn().mockRejectedValue(new Error('Network error'));
-
-      // 应该抛出错误
-      await expect(
-        optimisticUpdate<TestState, any>({
-          getState: () => currentState,
-          optimisticUpdate: (state) => state,
-          apiCall: mockApiCall,
-          silent: false,
-        })
-      ).rejects.toThrow('Network error');
-    });
-  });
-
-  describe('错误处理', () => {
-    it('应该记录错误日志', async () => {
-      const consoleSpy = jest.spyOn(console, 'error').mockImplementation();
-      const mockApiCall = jest.fn().mockRejectedValue(new Error('API Error'));
-
-      await optimisticUpdate<TestState, any>({
-        getState: () => currentState,
-        optimisticUpdate: (state) => state,
-        apiCall: mockApiCall,
-        errorMessage: '自定义错误消息',
-        silent: true,
-      });
-
-      expect(consoleSpy).toHaveBeenCalledWith('自定义错误消息:', expect.any(Error));
-
-      consoleSpy.mockRestore();
-    });
-  });
-});
-
-describe('simpleOptimisticUpdate', () => {
-  let currentState: TestState;
-  let setStateMock: jest.Mock;
-
-  beforeEach(() => {
-    currentState = JSON.parse(JSON.stringify(initialState));
-    setStateMock = jest.fn((newState) => {
-      currentState = newState;
-    });
-  });
-
-  it('应该成功执行乐观更新', async () => {
-    const mockApiCall = jest.fn().mockResolvedValue(undefined);
-
-    await simpleOptimisticUpdate<TestState>({
-      getState: () => currentState,
-      setState: setStateMock,
-      optimisticUpdate: (state) => ({
-        ...state,
-        posts: state.posts.map((p) =>
-          p.id === '1' ? { ...p, likes: p.likes + 1 } : p
-        ),
-      }),
-      rollbackState: (original) => original,
-      apiCall: mockApiCall,
-    });
-
-    expect(mockApiCall).toHaveBeenCalledTimes(1);
-    expect(setStateMock).toHaveBeenCalledTimes(1);
-  });
-
-  it('应该在失败时回滚状态', async () => {
-    const mockApiCall = jest.fn().mockRejectedValue(new Error('Error'));
-    const rollbackMock = jest.fn((original) => original);
-
-    await simpleOptimisticUpdate<TestState>({
-      getState: () => currentState,
-      setState: setStateMock,
-      optimisticUpdate: (state) => ({
-        ...state,
-        posts: state.posts.map((p) =>
-          p.id === '1' ? { ...p, likes: p.likes + 1 } : p
-        ),
-      }),
-      rollbackState: rollbackMock,
-      apiCall: mockApiCall,
-      silent: true,
-    });
-
-    // 验证乐观更新和回滚都被调用
-    expect(setStateMock).toHaveBeenCalledTimes(2);
-    expect(rollbackMock).toHaveBeenCalledWith(initialState);
-  });
-});
-
-describe('createOptimisticUpdaterFactory', () => {
-  interface StoreState {
-    posts: Array<{ id: string; likes: number }>;
-    count: number;
-  }
-
-  let storeState: StoreState;
-  let setMock: jest.Mock;
-  let getMock: jest.Mock;
-
-  beforeEach(() => {
-    storeState = {
-      posts: [{ id: '1', likes: 10 }],
-      count: 0,
-    };
-    setMock = jest.fn((fn) => {
-      storeState = fn(storeState);
-    });
-    getMock = jest.fn(() => storeState);
-  });
-
-  it('应该创建乐观更新器并正常工作', async () => {
-    const optimisticUpdater = createOptimisticUpdaterFactory<StoreState>(setMock, getMock);
-    const mockApiCall = jest.fn().mockResolvedValue(undefined);
-
-    await optimisticUpdater({
-      key: 'posts',
-      optimisticUpdate: (posts) =>
-        posts.map((p) => (p.id === '1' ? { ...p, likes: p.likes + 1 } : p)),
-      rollbackState: (original) => original,
-      apiCall: mockApiCall,
-    });
-
-    expect(mockApiCall).toHaveBeenCalledTimes(1);
-    expect(setMock).toHaveBeenCalledTimes(1);
-    expect(storeState.posts[0].likes).toBe(11);
-  });
-
-  it('应该在API失败时回滚状态', async () => {
-    const optimisticUpdater = createOptimisticUpdaterFactory<StoreState>(setMock, getMock);
-    const mockApiCall = jest.fn().mockRejectedValue(new Error('Error'));
-
-    await optimisticUpdater({
-      key: 'posts',
-      optimisticUpdate: (posts) =>
-        posts.map((p) => (p.id === '1' ? { ...p, likes: p.likes + 1 } : p)),
-      rollbackState: (original) => original,
-      apiCall: mockApiCall,
-      silent: true,
-    });
-
-    // 乐观更新 + 回滚 = 2次set调用
-    expect(setMock).toHaveBeenCalledTimes(2);
-    // 最终状态应该和初始状态一样
-    expect(storeState.posts[0].likes).toBe(10);
-  });
-
-  it('应该处理不同的state key', async () => {
-    const optimisticUpdater = createOptimisticUpdaterFactory<StoreState>(setMock, getMock);
-    const mockApiCall = jest.fn().mockResolvedValue(undefined);
-
-    await optimisticUpdater({
-      key: 'count',
-      optimisticUpdate: (count) => count + 1,
-      rollbackState: (original) => original,
-      apiCall: mockApiCall,
-    });
-
-    expect(storeState.count).toBe(1);
-  });
-});