352 lines
12 KiB
Dart
352 lines
12 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:media_kit/media_kit.dart';
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import 'package:audio_service/audio_service.dart' as audio_service;
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import 'package:permission_handler/permission_handler.dart';
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import 'services/audio_service.dart';
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import 'services/playback_service.dart';
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import 'services/app_lifecycle_service.dart';
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import 'services/webdav_service.dart';
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import 'services/audio_player_handler.dart';
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import 'services/app_lifecycle_manager.dart';
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import 'pages/home_page.dart';
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import 'pages/player_page.dart';
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import 'pages/playlist_page.dart';
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import 'widgets/global_mini_player.dart';
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final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
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final stopwatch = Stopwatch();
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// ⭐ 防止 Hot Restart / 热重载时重复初始化
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bool _appInitialized = false;
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// ⭐ 全局缓存 Handler
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AudioPlayerHandler? _audioHandler;
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// ⭐ 全局缓存 LifecycleManager
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final AppLifecycleManager lifecycleManager = AppLifecycleManager();
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void main() async {
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// ⭐ P0：防止重复初始化
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if (_appInitialized) {
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debugPrint('⏱️ main 已初始化，跳过重复执行');
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return;
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}
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_appInitialized = true;
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stopwatch.start();
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debugPrint('⏱️ T0 main: ${stopwatch.elapsedMilliseconds}ms');
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WidgetsFlutterBinding.ensureInitialized();
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debugPrint('⏱️ T0.5 ensureInitialized: ${stopwatch.elapsedMilliseconds}ms');
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// ⭐ MediaKit 在 runApp 前初始化（官方要求）
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try {
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MediaKit.ensureInitialized();
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debugPrint('⏱️ T0.6 MediaKit 初始化完成');
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} catch (e) {
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debugPrint('❌ MediaKit 初始化失败: $e');
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}
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// ⭐ 创建 Handler（AudioService 稍后初始化）
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_audioHandler = AudioPlayerHandler();
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runApp(
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MultiProvider(
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providers: [
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ChangeNotifierProvider(create: (_) => AudioService()),
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ChangeNotifierProvider(create: (_) => AppLifecycleService()),
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// ⭐ 生命周期管理器
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ChangeNotifierProvider<AppLifecycleManager>(
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create: (_) => lifecycleManager,
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),
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Provider<AudioPlayerHandler>(create: (_) => _audioHandler!),
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],
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child: const QTPlayerApp(),
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),
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);
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debugPrint('⏱️ T0.8 runApp 完成: ${stopwatch.elapsedMilliseconds}ms');
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}
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// ════════════════════════════════════════════════════════════
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// 路由管理器（控制 MiniPlayer 显示/隐藏）
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// ════════════════════════════════════════════════════════════
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class RouteManager extends ChangeNotifier {
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static final RouteManager _instance = RouteManager._internal();
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factory RouteManager() => _instance;
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RouteManager._internal();
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String _currentRoute = '/';
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String get currentRoute => _currentRoute;
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bool get showMiniPlayer =>
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_currentRoute != '/player' && _currentRoute != '/playlist';
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void updateRoute(String route) {
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if (_currentRoute != route) {
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_currentRoute = route;
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debugPrint('📌 路由更新: $route');
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notifyListeners();
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}
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}
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}
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// ════════════════════════════════════════════════════════════
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// 导航观察者（监听路由变化）
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// ════════════════════════════════════════════════════════════
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class MiniPlayerNavigatorObserver extends NavigatorObserver {
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void _updateRoute(Route? route) {
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final name = route?.settings.name ?? '/';
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RouteManager().updateRoute(name);
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}
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@override
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void didPush(Route route, Route? previousRoute) {
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_updateRoute(route);
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}
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@override
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void didPop(Route route, Route? previousRoute) {
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_updateRoute(previousRoute);
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}
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@override
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void didReplace({Route? newRoute, Route? oldRoute}) {
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_updateRoute(newRoute);
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}
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}
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// ════════════════════════════════════════════════════════════
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// 主应用
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// ════════════════════════════════════════════════════════════
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class QTPlayerApp extends StatefulWidget {
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const QTPlayerApp({super.key});
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@override
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State<QTPlayerApp> createState() => _QTPlayerAppState();
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}
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class _QTPlayerAppState extends State<QTPlayerApp> {
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// ⭐ build 计数器（诊断用）
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static int _buildCount = 0;
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bool _isInitializing = false;
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// ⭐ 保存生命周期监听器引用
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void Function(AppLifecycleStatus)? _lifecycleListener;
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// ============================================================
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// 生命周期
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// ============================================================
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@override
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void initState() {
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super.initState();
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debugPrint('⏱️ T1.5 initState: ${stopwatch.elapsedMilliseconds}ms');
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WidgetsBinding.instance.addPostFrameCallback((_) {
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debugPrint('⏱️ T2 首帧回调: ${stopwatch.elapsedMilliseconds}ms');
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// ⭐ 1. 初始化生命周期管理器
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lifecycleManager.init();
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// ⭐ 2. 绑定生命周期到播放器
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_bindLifecycleToPlayback();
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// ⭐ 3. 后台初始化
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_startBackgroundInitialization();
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});
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}
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@override
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void dispose() {
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// ⭐ 移除生命周期监听器
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if (_lifecycleListener != null) {
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lifecycleManager.removeListenerFromManager(_lifecycleListener!);
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}
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super.dispose();
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}
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// ============================================================
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// 生命周期 → 播放器绑定
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// ============================================================
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void _bindLifecycleToPlayback() {
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if (_lifecycleListener != null) {
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lifecycleManager.removeListenerFromManager(_lifecycleListener!);
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}
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_lifecycleListener = (status) {
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final audioService = context.read<AudioService>();
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switch (status) {
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case AppLifecycleStatus.paused:
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case AppLifecycleStatus.inactive:
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debugPrint('🎵 App 进入后台，播放继续');
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break;
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case AppLifecycleStatus.resumed:
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debugPrint('🎵 App 回到前台');
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break;
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case AppLifecycleStatus.backgroundIdle:
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debugPrint('🎵 长后台唤醒，检查播放状态');
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break;
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default:
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break;
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}
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};
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lifecycleManager.addListenerToManager(_lifecycleListener!);
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}
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// ============================================================
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// 后台初始化（精细时间切片）
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// ============================================================
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Future<void> _startBackgroundInitialization() async {
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if (_isInitializing) return;
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_isInitializing = true;
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final tStart = DateTime.now();
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debugPrint('⏱️ T3 后台初始化开始');
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// ----- 1. PlaybackService -----
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final t1 = DateTime.now();
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try {
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PlaybackService().init();
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debugPrint('⏱️ T3.1 PlaybackService 完成: ${_elapsedMs(t1)}ms');
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} catch (e) {
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debugPrint('❌ PlaybackService 失败: $e');
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}
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// ----- 2. WebDAV（只加载凭证） -----
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final t2 = DateTime.now();
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try {
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final hasCred = await WebDAVService.instance.loadCredentials();
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debugPrint('⏱️ T3.2 WebDAV 凭证加载完成: ${_elapsedMs(t2)}ms, 有凭证: $hasCred');
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} catch (e) {
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debugPrint('❌ WebDAV 凭证加载失败: $e');
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}
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// ----- 3. ⭐ AudioService（后台播放核心） -----
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await _initAudioService();
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// ----- 4. 通知权限 -----
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final t3 = DateTime.now();
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try {
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if (await Permission.notification.isDenied) {
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await Permission.notification.request();
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debugPrint('⏱️ T3.3 通知权限完成: ${_elapsedMs(t3)}ms');
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} else {
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debugPrint('⏱️ T3.3 通知权限已授予: ${_elapsedMs(t3)}ms');
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}
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} catch (e) {
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debugPrint('❌ 权限申请失败: $e');
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}
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final tEnd = DateTime.now();
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debugPrint('⏱️ T4 全部初始化完成: ${tEnd.difference(tStart).inMilliseconds}ms');
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}
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// ════════════════════════════════════════════════════════════
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// ⭐ AudioService 初始化（后台播放核心）
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// ════════════════════════════════════════════════════════════
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Future<void> _initAudioService() async {
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try {
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await audio_service.AudioService.init(
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builder: () => _audioHandler!,
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config: const audio_service.AudioServiceConfig(
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androidNotificationChannelId: 'com.example.qt_player.music',
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androidNotificationChannelName: '清听音乐播放',
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androidNotificationOngoing: true,
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androidStopForegroundOnPause: true,
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),
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);
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debugPrint('✅ AudioService 初始化完成');
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} catch (e) {
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debugPrint('❌ AudioService 初始化失败: $e');
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}
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}
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// ════════════════════════════════════════════════════════════
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// 辅助方法
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// ════════════════════════════════════════════════════════════
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String _elapsedMs(DateTime start) {
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return '${DateTime.now().difference(start).inMilliseconds}';
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}
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// ════════════════════════════════════════════════════════════
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// Build
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// ════════════════════════════════════════════════════════════
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@override
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Widget build(BuildContext context) {
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_buildCount++;
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debugPrint(
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'🎨 [QTPlayerApp] build #$_buildCount ${stopwatch.elapsedMilliseconds}ms');
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// 监听歌曲变化，更新通知栏
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// main.dart 中 build 方法里的这部分
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final audioService = context.watch<AudioService>();
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final handler = context.read<AudioPlayerHandler>();
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final song = audioService.currentSong;
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (song != null) {
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// ⭐ song 不为空时才调用
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handler.updateNotification(
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id: song.id,
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title: song.title,
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artist: song.artist,
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);
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} else {
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// 清空通知
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handler.mediaItem.add(null);
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}
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});
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return MaterialApp(
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title: '清听',
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theme: ThemeData(
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brightness: Brightness.dark,
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primaryColor: const Color(0xFF7C9A9E),
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colorScheme: const ColorScheme.dark(
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primary: Color(0xFF7C9A9E),
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secondary: Color(0xFFB8D4D0),
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surface: Color(0xFF1A1F1E),
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onSurface: Colors.white,
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),
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useMaterial3: true,
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),
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navigatorKey: navigatorKey,
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navigatorObservers: [MiniPlayerNavigatorObserver()],
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routes: {
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'/': (context) => const HomePage(),
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'/player': (context) => const PlayerPage(),
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'/playlist': (context) => const PlaylistPage(),
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},
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builder: (context, child) {
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return Stack(
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fit: StackFit.expand,
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children: [
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if (child != null) child,
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AnimatedBuilder(
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animation: RouteManager(),
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builder: (context, _) {
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if (!RouteManager().showMiniPlayer) {
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return const SizedBox.shrink();
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}
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return const Align(
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alignment: Alignment.bottomCenter,
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child: GlobalMiniPlayer(),
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);
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},
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),
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],
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);
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},
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);
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}
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}
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