mirror of
https://gh-proxy.org/https://github.com/tiajinsha/JKVideo
synced 2026-07-07 23:18:38 +08:00
547 lines
15 KiB
TypeScript
547 lines
15 KiB
TypeScript
import React, {
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useEffect,
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useState,
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useRef,
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useMemo,
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useCallback,
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} from "react";
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import {
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View,
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StyleSheet,
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Text,
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TouchableOpacity,
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ActivityIndicator,
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Animated,
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Image,
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RefreshControl,
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ViewToken,
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FlatList,
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ScrollView,
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Linking,
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} from "react-native";
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import {
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SafeAreaView,
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useSafeAreaInsets,
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} from "react-native-safe-area-context";
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import { useRouter } from "expo-router";
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import { Ionicons } from "@expo/vector-icons";
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import { VideoCard } from "../components/VideoCard";
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import { LiveCard } from "../components/LiveCard";
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import { LoginModal } from "../components/LoginModal";
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import { useVideoList } from "../hooks/useVideoList";
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import { useLiveList } from "../hooks/useLiveList";
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import { useAuthStore } from "../store/authStore";
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import { toListRows, type ListRow, type BigRow, type LiveRow } from "../utils/videoRows";
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import { BigVideoCard } from "../components/BigVideoCard";
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import type { LiveRoom } from "../services/types";
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const HEADER_H = 44;
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const TAB_H = 38;
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const NAV_H = HEADER_H + TAB_H;
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const VIEWABILITY_CONFIG = { itemVisiblePercentThreshold: 50 };
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type TabKey = "hot" | "live";
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const TABS: { key: TabKey; label: string }[] = [
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{ key: "hot", label: "热门" },
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{ key: "live", label: "直播" },
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];
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const LIVE_AREAS = [
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{ id: 0, name: "推荐" },
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{ id: 2, name: "网游" },
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{ id: 3, name: "手游" },
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{ id: 6, name: "单机游戏" },
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{ id: 1, name: "娱乐" },
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{ id: 9, name: "虚拟主播" },
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{ id: 10, name: "生活" },
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{ id: 11, name: "知识" },
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{ id: 13, name: "赛事" },
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];
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export default function HomeScreen() {
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const router = useRouter();
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const { pages, liveRooms, loading, refreshing, load, refresh } = useVideoList();
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const {
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rooms,
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loading: liveLoading,
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refreshing: liveRefreshing,
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load: liveLoad,
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refresh: liveRefresh,
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} = useLiveList();
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const { isLoggedIn, face, logout } = useAuthStore();
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const [showLogin, setShowLogin] = useState(false);
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const insets = useSafeAreaInsets();
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const [activeTab, setActiveTab] = useState<TabKey>("hot");
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const [liveAreaId, setLiveAreaId] = useState(0);
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const [visibleBigKey, setVisibleBigKey] = useState<string | null>(null);
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const rows = useMemo(() => toListRows(pages, liveRooms), [pages, liveRooms]);
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const hotListRef = useRef<FlatList>(null);
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const liveListRef = useRef<FlatList>(null);
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const onViewableItemsChangedRef = useRef(
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({ viewableItems }: { viewableItems: ViewToken[] }) => {
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const bigRow = viewableItems.find(
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(v) => v.item && (v.item as ListRow).type === "big",
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);
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setVisibleBigKey(bigRow ? (bigRow.item as BigRow).item.bvid : null);
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},
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).current;
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const scrollY = useRef(new Animated.Value(0)).current;
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const headerTranslate = scrollY.interpolate({
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inputRange: [0, HEADER_H],
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outputRange: [0, -HEADER_H],
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extrapolate: "clamp",
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});
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const headerOpacity = scrollY.interpolate({
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inputRange: [0, HEADER_H * 0.2],
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outputRange: [1, 0],
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extrapolate: "clamp",
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});
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// 直播列表也共用同一个 scrollY
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const liveScrollY = useRef(new Animated.Value(0)).current;
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const liveHeaderTranslate = liveScrollY.interpolate({
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inputRange: [0, HEADER_H],
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outputRange: [0, -HEADER_H],
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extrapolate: "clamp",
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});
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const liveHeaderOpacity = liveScrollY.interpolate({
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inputRange: [0, HEADER_H * 0.2],
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outputRange: [1, 0],
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extrapolate: "clamp",
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});
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useEffect(() => {
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load();
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}, []);
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const onScroll = useMemo(
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() =>
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Animated.event([{ nativeEvent: { contentOffset: { y: scrollY } } }], {
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useNativeDriver: true,
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}),
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[],
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);
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const onLiveScroll = useMemo(
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() =>
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Animated.event(
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[{ nativeEvent: { contentOffset: { y: liveScrollY } } }],
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{ useNativeDriver: true },
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),
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[],
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);
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const handleTabPress = useCallback(
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(key: TabKey) => {
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if (key === activeTab) {
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// 点击已激活的 tab：滚动到顶部并刷新
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if (key === "hot") {
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hotListRef.current?.scrollToOffset({ offset: 0, animated: true });
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refresh();
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} else {
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liveListRef.current?.scrollToOffset({ offset: 0, animated: true });
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liveRefresh(liveAreaId);
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}
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return;
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}
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// 切换 tab
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setActiveTab(key);
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if (key === "live" && rooms.length === 0) {
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liveLoad(true, liveAreaId);
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}
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// 重置 header 动画
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if (key === "hot") {
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scrollY.setValue(0);
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} else {
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liveScrollY.setValue(0);
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}
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},
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[activeTab, rooms.length, liveAreaId],
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);
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const handleLiveAreaPress = useCallback(
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(areaId: number) => {
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if (areaId === liveAreaId) return;
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setLiveAreaId(areaId);
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liveListRef.current?.scrollToOffset({ offset: 0, animated: false });
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liveLoad(true, areaId);
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},
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[liveAreaId, liveLoad],
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);
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const renderItem = useCallback(
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({ item: row }: { item: ListRow }) => {
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if (row.type === "big") {
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return (
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<BigVideoCard
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item={row.item}
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isVisible={visibleBigKey === row.item.bvid}
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onPress={() => router.push(`/video/${row.item.bvid}` as any)}
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/>
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);
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}
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if (row.type === "live") {
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return (
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<View style={styles.row}>
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<View style={styles.leftCol}>
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<LiveCard
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item={row.left}
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onPress={() => Linking.openURL(`https://live.bilibili.com/${row.left.roomid}`)}
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/>
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</View>
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{row.right && (
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<View style={styles.rightCol}>
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<LiveCard
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item={row.right}
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onPress={() => Linking.openURL(`https://live.bilibili.com/${row.right!.roomid}`)}
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/>
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</View>
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)}
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</View>
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);
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}
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const right = row.right;
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return (
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<View style={styles.row}>
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<View style={styles.leftCol}>
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<VideoCard
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item={row.left}
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onPress={() => router.push(`/video/${row.left.bvid}` as any)}
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/>
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</View>
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{right && (
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<View style={styles.rightCol}>
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<VideoCard
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item={right}
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onPress={() => router.push(`/video/${right.bvid}` as any)}
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/>
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</View>
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)}
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</View>
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);
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},
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[visibleBigKey],
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);
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const renderLiveItem = useCallback(
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({ item }: { item: { left: LiveRoom; right?: LiveRoom } }) => (
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<View style={styles.row}>
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<View style={styles.leftCol}>
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<LiveCard item={item.left} />
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</View>
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{item.right && (
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<View style={styles.rightCol}>
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<LiveCard item={item.right} />
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</View>
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)}
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</View>
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),
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[],
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);
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// 将直播列表分成两列的行
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const liveRows = useMemo(() => {
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const result: { left: LiveRoom; right?: LiveRoom }[] = [];
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for (let i = 0; i < rooms.length; i += 2) {
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result.push({ left: rooms[i], right: rooms[i + 1] });
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}
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return result;
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}, [rooms]);
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const currentHeaderTranslate =
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activeTab === "hot" ? headerTranslate : liveHeaderTranslate;
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const currentHeaderOpacity =
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activeTab === "hot" ? headerOpacity : liveHeaderOpacity;
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return (
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<SafeAreaView style={styles.safe} edges={["left", "right"]}>
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{/* 热门列表 */}
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{activeTab === "hot" && (
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<Animated.FlatList
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ref={hotListRef as any}
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style={styles.listContainer}
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data={rows}
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keyExtractor={(row: any) =>
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row.type === "big"
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? `big-${row.item.bvid}`
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: row.type === "live"
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? `live-${row.left.roomid}-${row.right?.roomid ?? "empty"}`
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: `pair-${row.left.bvid}-${row.right?.bvid ?? "empty"}`
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}
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contentContainerStyle={{
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paddingTop: insets.top + NAV_H + 6,
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paddingBottom: insets.bottom + 16,
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}}
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renderItem={renderItem}
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refreshControl={
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<RefreshControl
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refreshing={refreshing}
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onRefresh={refresh}
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progressViewOffset={insets.top + NAV_H}
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/>
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}
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onEndReached={() => load()}
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onEndReachedThreshold={0.5}
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extraData={visibleBigKey}
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viewabilityConfig={VIEWABILITY_CONFIG}
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onViewableItemsChanged={onViewableItemsChangedRef}
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ListFooterComponent={
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<View style={styles.footer}>
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{loading && <ActivityIndicator color="#00AEEC" />}
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</View>
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}
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onScroll={onScroll}
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scrollEventThrottle={16}
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/>
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)}
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{/* 直播列表 */}
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{activeTab === "live" && (
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<Animated.FlatList
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ref={liveListRef as any}
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style={styles.listContainer}
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data={liveRows}
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keyExtractor={(item: any, index: number) =>
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`live-${index}-${item.left.roomid}-${item.right?.roomid ?? "empty"}`
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}
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contentContainerStyle={{
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paddingTop: insets.top + NAV_H + 6,
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paddingBottom: insets.bottom + 16,
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}}
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renderItem={renderLiveItem}
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ListHeaderComponent={
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<ScrollView
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horizontal
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showsHorizontalScrollIndicator={false}
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style={styles.areaTabRow}
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contentContainerStyle={styles.areaTabContent}
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>
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{LIVE_AREAS.map((area) => (
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<TouchableOpacity
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key={area.id}
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style={[
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styles.areaTab,
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liveAreaId === area.id && styles.areaTabActive,
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]}
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onPress={() => handleLiveAreaPress(area.id)}
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activeOpacity={0.7}
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>
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<Text
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style={[
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styles.areaTabText,
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liveAreaId === area.id && styles.areaTabTextActive,
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]}
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>
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{area.name}
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</Text>
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</TouchableOpacity>
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))}
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</ScrollView>
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}
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refreshControl={
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<RefreshControl
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refreshing={liveRefreshing}
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onRefresh={() => liveRefresh(liveAreaId)}
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progressViewOffset={insets.top + NAV_H}
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/>
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}
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onEndReached={() => liveLoad()}
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onEndReachedThreshold={1.5}
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ListFooterComponent={
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liveLoading ? (
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<View style={styles.footer}>
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<ActivityIndicator color="#00AEEC" />
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<Text style={styles.footerText}>加载中...</Text>
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</View>
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) : null
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}
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onScroll={onLiveScroll}
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scrollEventThrottle={16}
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/>
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)}
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{/* 绝对定位导航栏 */}
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<Animated.View
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style={[
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styles.navBar,
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{
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paddingTop: insets.top,
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transform: [{ translateY: currentHeaderTranslate }],
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},
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]}
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>
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<Animated.View
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style={[
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styles.header,
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{
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opacity: currentHeaderOpacity,
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},
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]}
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>
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<View style={styles.headerRight}>
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<TouchableOpacity
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style={styles.headerBtn}
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onPress={() => (isLoggedIn ? logout() : setShowLogin(true))}
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>
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{isLoggedIn && face ? (
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<Image source={{ uri: face }} style={styles.userAvatar} />
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) : (
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<Ionicons
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name={isLoggedIn ? "person" : "person-outline"}
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size={22}
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color="#00AEEC"
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/>
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)}
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</TouchableOpacity>
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{/* <TouchableOpacity style={styles.headerBtn}>
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<Ionicons name="search" size={22} color="#212121" />
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</TouchableOpacity> */}
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</View>
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<Text style={styles.logo}>哔哩哔哩</Text>
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</Animated.View>
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<View style={styles.tabRow}>
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{TABS.map((tab) => (
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<TouchableOpacity
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key={tab.key}
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style={styles.tabItem}
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onPress={() => handleTabPress(tab.key)}
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activeOpacity={0.7}
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>
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<Text
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style={[
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styles.tabText,
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activeTab === tab.key && styles.tabTextActive,
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]}
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>
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{tab.label}
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</Text>
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{activeTab === tab.key && <View style={styles.tabUnderline} />}
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</TouchableOpacity>
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))}
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</View>
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</Animated.View>
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<LoginModal visible={showLogin} onClose={() => setShowLogin(false)} />
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</SafeAreaView>
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);
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}
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const styles = StyleSheet.create({
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safe: { flex: 1, backgroundColor: "#f4f4f4" },
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listContainer: { flex: 1 },
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navBar: {
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position: "absolute",
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top: 0,
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left: 0,
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right: 0,
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zIndex: 10,
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backgroundColor: "#fff",
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overflow: "hidden",
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elevation: 2,
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shadowColor: "#000",
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shadowOffset: { width: 0, height: 1 },
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shadowOpacity: 0.06,
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shadowRadius: 2,
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},
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header: {
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height: HEADER_H,
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flexDirection: "row",
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alignItems: "center",
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justifyContent: "space-between",
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paddingHorizontal: 16,
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borderBottomWidth: StyleSheet.hairlineWidth,
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borderBottomColor: "#eee",
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},
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logo: {
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fontSize: 20,
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fontWeight: "800",
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color: "#00AEEC",
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letterSpacing: -0.5,
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},
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headerRight: { flexDirection: "row", gap: 8,alignItems: "center" },
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headerBtn: {paddingLeft:0 },
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userAvatar: {
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width: 35,
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height: 35,
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borderRadius: 50,
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backgroundColor: "#eee",
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},
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tabRow: {
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height: TAB_H,
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backgroundColor: "#fff",
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paddingHorizontal: 16,
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flexDirection: "row",
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alignItems: "center",
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gap: 20,
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},
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tabItem: {
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alignItems: "center",
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justifyContent: "center",
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height: TAB_H,
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},
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tabText: {
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fontSize: 15,
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fontWeight: "500",
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color: "#999",
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},
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tabTextActive: {
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fontWeight: "700",
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color: "#00AEEC",
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},
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tabUnderline: {
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position: "absolute",
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bottom: 4,
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width: 24,
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height: 3,
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backgroundColor: "#00AEEC",
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borderRadius: 4,
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},
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row: {
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flexDirection: "row",
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paddingHorizontal: 1,
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justifyContent: "flex-start",
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},
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leftCol: { marginLeft: 4, marginRight: 2 },
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rightCol: { marginLeft: 2, marginRight: 4 },
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footer: { height: 48, alignItems: "center", justifyContent: "center", flexDirection: "row", gap: 6 },
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footerText: { fontSize: 12, color: "#999" },
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areaTabRow: {
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marginBottom: 6,
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},
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areaTabContent: {
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paddingHorizontal: 8,
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gap: 8,
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alignItems: "center",
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height: 36,
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},
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areaTab: {
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paddingHorizontal: 10,
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paddingVertical: 2,
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borderRadius: 16,
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backgroundColor: "#f0f0f0",
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},
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areaTabActive: {
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backgroundColor: "#00AEEC",
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},
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areaTabText: {
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fontSize: 13,
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color: "#333",
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fontWeight: "500",
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},
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areaTabTextActive: {
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color: "#fff",
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fontWeight: "600",
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},
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});
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