权限配置暂时到此，后台播放问题并入生命周期管理同步开发

android/app/src/main/AndroidManifest.xml

@@ -3,19 +3,18 @@
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     
-    <!-- ⭐ 后台播放（必需） -->
+    <!-- ⭐ 后台播放 -->
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
-    <!-- Android 12+ 后台启动限制 -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK" />
-    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
-    
-    <!-- ⭐ 通知（Android 13+ 必需） -->
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    
     <application
         android:label="qt_player"
         android:name="${applicationName}"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
         android:usesCleartextTraffic="true"
+        android:foregroundServiceType="mediaPlayback">
         <activity
             android:name=".MainActivity"
             android:exported="true"
@@ -40,6 +39,10 @@
         </activity>
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <service
+            android:name="com.ryanheise.audioservice.AudioService"
+            android:foregroundServiceType="mediaPlayback"
+            android:exported="false" />
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />

android/app/src/main/kotlin/com/example/qt_player/MainActivity.kt

@@ -3,46 +3,20 @@ package com.example.qt_player
 import android.os.Build
 import android.os.Bundle
 import android.util.Log
-import android.view.WindowManager
+import com.ryanheise.audioservice.AudioServiceActivity  // ⭐ 改用这个
-import io.flutter.embedding.android.FlutterActivity
-import io.flutter.embedding.engine.FlutterEngine
-import io.flutter.plugin.common.MethodChannel
 
-class MainActivity : FlutterActivity() {
+class MainActivity : AudioServiceActivity() {  // ⭐ 继承 AudioServiceActivity
-
-    private val CHANNEL = "com.qt_player/frame_rate"
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        // 在创建时尝试设置（但可能窗口还未就绪，所以下面在 onResume 再次设置）
         setHighRefreshRate()
     }
 
     override fun onResume() {
         super.onResume()
-        // 每次回到前台时确保高刷生效
         setHighRefreshRate()
     }
 
-    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
-        super.configureFlutterEngine(flutterEngine)
-
-        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL)
-            .setMethodCallHandler { call, result ->
-                when (call.method) {
-                    "setHighRefreshRate" -> {
-                        setHighRefreshRate()
-                        result.success(true)
-                    }
-                    "clearRefreshRate" -> {
-                        clearRefreshRate()
-                        result.success(true)
-                    }
-                    else -> result.notImplemented()
-                }
-            }
-    }
-
     private fun setHighRefreshRate() {
         try {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
@@ -60,7 +34,7 @@ class MainActivity : FlutterActivity() {
         try {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
                 val params = window.attributes
-                params.preferredRefreshRate = 0f  // 0 表示系统自动
+                params.preferredRefreshRate = 0f
                 window.attributes = params
                 Log.d("QTPlayer", "恢复默认刷新率")
             }

lib/main.dart

@@ -1,32 +1,59 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:media_kit/media_kit.dart';
+//import 'package:audio_service/audio_service.dart' as audio_service;
+import 'package:permission_handler/permission_handler.dart';
+
 import 'services/audio_service.dart';
 import 'services/playback_service.dart';
 import 'services/app_lifecycle_service.dart';
 import 'services/webdav_service.dart';
+import 'services/audio_player_handler.dart';
 import 'pages/home_page.dart';
 import 'pages/player_page.dart';
 import 'pages/playlist_page.dart';
 import 'widgets/global_mini_player.dart';
 
 final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
-
-// ⏱️ 全局计时器
 final stopwatch = Stopwatch();
 
-void main() {
+// ⭐ 防止 Hot Restart / 热重载时重复初始化
+bool _appInitialized = false;
+
+// ⭐ 全局缓存 Handler
+AudioPlayerHandler? _audioHandler;
+
+void main() async {
+  // ⭐ P0：防止重复初始化
+  if (_appInitialized) {
+    debugPrint('⏱️ main 已初始化，跳过重复执行');
+    return;
+  }
+  _appInitialized = true;
+
   stopwatch.start();
   debugPrint('⏱️ T0 main: ${stopwatch.elapsedMilliseconds}ms');
 
   WidgetsFlutterBinding.ensureInitialized();
   debugPrint('⏱️ T0.5 ensureInitialized: ${stopwatch.elapsedMilliseconds}ms');
 
+  // ⭐ MediaKit 在 runApp 前初始化（官方要求）
+  try {
+    MediaKit.ensureInitialized();
+    debugPrint('⏱️ T0.6 MediaKit 初始化完成');
+  } catch (e) {
+    debugPrint('❌ MediaKit 初始化失败: $e');
+  }
+
+  // ⭐ 创建 Handler（AudioService 稍后初始化）
+  _audioHandler = AudioPlayerHandler();
+
   runApp(
     MultiProvider(
       providers: [
         ChangeNotifierProvider(create: (_) => AudioService()),
         ChangeNotifierProvider(create: (_) => AppLifecycleService()),
+        Provider<AudioPlayerHandler>(create: (_) => _audioHandler!),
       ],
       child: const QTPlayerApp(),
     ),
@@ -35,13 +62,15 @@ void main() {
   debugPrint('⏱️ T0.8 runApp 完成: ${stopwatch.elapsedMilliseconds}ms');
 }
 
+// ════════════════════════════════════════════════════════════
+// 路由管理器（控制 MiniPlayer 显示/隐藏）
+// ════════════════════════════════════════════════════════════
 class RouteManager extends ChangeNotifier {
   static final RouteManager _instance = RouteManager._internal();
   factory RouteManager() => _instance;
   RouteManager._internal();
 
   String _currentRoute = '/';
-
   String get currentRoute => _currentRoute;
 
   bool get showMiniPlayer =>
@@ -56,6 +85,9 @@ class RouteManager extends ChangeNotifier {
   }
 }
 
+// ════════════════════════════════════════════════════════════
+// 导航观察者（监听路由变化）
+// ════════════════════════════════════════════════════════════
 class MiniPlayerNavigatorObserver extends NavigatorObserver {
   void _updateRoute(Route? route) {
     final name = route?.settings.name ?? '/';
@@ -78,6 +110,9 @@ class MiniPlayerNavigatorObserver extends NavigatorObserver {
   }
 }
 
+// ════════════════════════════════════════════════════════════
+// 主应用
+// ════════════════════════════════════════════════════════════
 class QTPlayerApp extends StatefulWidget {
   const QTPlayerApp({super.key});
 
@@ -86,21 +121,123 @@ class QTPlayerApp extends StatefulWidget {
 }
 
 class _QTPlayerAppState extends State<QTPlayerApp> {
+  bool _isInitializing = false;
+
+  // ============================================================
+  // 生命周期
+  // ============================================================
   @override
   void initState() {
     super.initState();
+
     debugPrint('⏱️ T1.5 initState: ${stopwatch.elapsedMilliseconds}ms');
 
     WidgetsBinding.instance.addPostFrameCallback((_) {
       debugPrint('⏱️ T2 首帧回调: ${stopwatch.elapsedMilliseconds}ms');
-      _initializeServices();
+      _startBackgroundInitialization();
     });
   }
 
+  @override
+  void dispose() {
+    super.dispose();
+  }
+
+  // ============================================================
+  // 后台初始化（不阻塞首帧）
+  // ============================================================
+  Future<void> _startBackgroundInitialization() async {
+    if (_isInitializing) return;
+    _isInitializing = true;
+
+    debugPrint('⏱️ T3 后台初始化开始');
+
+    // 1. PlaybackService（轻量级）
+    try {
+      PlaybackService().init();
+      debugPrint('⏱️ T3.1 PlaybackService 初始化完成');
+    } catch (e) {
+      debugPrint('❌ PlaybackService 初始化失败: $e');
+    }
+
+    // 2. ⭐ AudioService 暂时禁用（等 MainActivity 改为 AudioServiceActivity 后启用）
+    // await _initAudioService();
+
+    // 3. WebDAV
+    await _initWebDAV();
+
+    // 4. 通知权限
+    await _requestPermissions();
+
+    debugPrint('⏱️ T4 全部初始化完成');
+  }
+
+  // ════════════════════════════════════════════════════════════
+  // 子初始化方法
+  // ════════════════════════════════════════════════════════════
+
+  // ⭐ 暂时禁用，等 MainActivity 改为 AudioServiceActivity 后启用
+  // Future<void> _initAudioService() async {
+  //   try {
+  //     await audio_service.AudioService.init(
+  //       builder: () => _audioHandler!,
+  //       config: const audio_service.AudioServiceConfig(
+  //         androidNotificationChannelId: 'com.example.qt_player.music',
+  //         androidNotificationChannelName: '清听音乐播放',
+  //         androidNotificationOngoing: true,
+  //         androidStopForegroundOnPause: true,
+  //       ),
+  //     );
+  //     debugPrint('✅ AudioService 初始化完成');
+  //   } catch (e) {
+  //     debugPrint('❌ AudioService 初始化失败: $e');
+  //   }
+  // }
+
+  Future<void> _initWebDAV() async {
+    try {
+      final hasCred = await WebDAVService.instance.loadCredentials();
+      debugPrint('✅ WebDAV 加载完成, 已连接: $hasCred');
+    } catch (e) {
+      debugPrint('❌ WebDAV 加载失败: $e');
+    }
+  }
+
+  Future<void> _requestPermissions() async {
+    try {
+      if (await Permission.notification.isDenied) {
+        final status = await Permission.notification.request();
+        debugPrint('📢 通知权限状态: $status');
+      }
+    } catch (e) {
+      debugPrint('❌ 权限申请失败: $e');
+    }
+  }
+
+  // ============================================================
+  // Build
+  // ============================================================
   @override
   Widget build(BuildContext context) {
     debugPrint('⏱️ T1 build: ${stopwatch.elapsedMilliseconds}ms');
 
+    // 监听歌曲变化，更新通知栏
+    final audioService = context.watch<AudioService>();
+    final handler = context.read<AudioPlayerHandler>();
+    final song = audioService.currentSong;
+
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (song != null) {
+        handler.updateNotification(
+          id: song.id,
+          title: song.title,
+          artist: song.artist,
+        );
+      } else {
+        handler.mediaItem.add(null);
+      }
+    });
+
     return MaterialApp(
       title: '清听',
       theme: ThemeData(
@@ -144,35 +281,3 @@ class _QTPlayerAppState extends State<QTPlayerApp> {
     );
   }
 }
-
-void _initializeServices() async {
-  debugPrint('⏱️ T3 开始初始化: ${stopwatch.elapsedMilliseconds}ms');
-  final lifecycle = AppLifecycleService();
-
-  try {
-    lifecycle.updateStatus(AppStatus.mediaKitInitializing);
-    MediaKit.ensureInitialized();
-    debugPrint('⏱️ T4 MediaKit 完成: ${stopwatch.elapsedMilliseconds}ms');
-    lifecycle.updateStatus(AppStatus.mediaKitReady);
-
-    lifecycle.updateStatus(AppStatus.playerInitializing);
-    PlaybackService().init();
-    debugPrint('⏱️ T5 Player 完成: ${stopwatch.elapsedMilliseconds}ms');
-    lifecycle.updateStatus(AppStatus.playerReady);
-
-    lifecycle.updateStatus(AppStatus.webdavChecking);
-    final hasCred = await WebDAVService.instance.loadCredentials();
-    debugPrint('⏱️ T6 WebDAV 完成: ${stopwatch.elapsedMilliseconds}ms');
-    if (hasCred) {
-      lifecycle.updateStatus(AppStatus.webdavReady);
-    } else {
-      lifecycle.updateStatus(AppStatus.webdavMissing);
-    }
-
-    lifecycle.updateStatus(AppStatus.fullReady);
-    debugPrint('✅ 应用完全就绪: ${stopwatch.elapsedMilliseconds}ms');
-  } catch (e) {
-    debugPrint('❌ 初始化错误: $e');
-    lifecycle.updateStatus(AppStatus.error);
-  }
-}

lib/pages/player_page.dart

@@ -1,10 +1,17 @@
+// lib/pages/player_page.dart
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../services/audio_service.dart';
-import '../main.dart';
 
 class PlayerPage extends StatefulWidget {
-  const PlayerPage({super.key});
+  final VoidCallback? onClose;
+  final VoidCallback? onOpenPlaylist;
+
+  const PlayerPage({
+    super.key,
+    this.onClose,
+    this.onOpenPlaylist,
+  });
 
   @override
   State<PlayerPage> createState() => _PlayerPageState();
@@ -20,6 +27,22 @@ class _PlayerPageState extends State<PlayerPage> {
     return '${minutes.toString().padLeft(2, '0')}:${seconds.toString().padLeft(2, '0')}';
   }
 
+  void _closePage() {
+    if (widget.onClose != null) {
+      widget.onClose!();
+    } else {
+      Navigator.pop(context);
+    }
+  }
+
+  void _openPlaylist() {
+    if (widget.onOpenPlaylist != null) {
+      widget.onOpenPlaylist!();
+    } else {
+      Navigator.pushNamed(context, '/playlist');
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final service = context.watch<AudioService>();
@@ -28,33 +51,22 @@ class _PlayerPageState extends State<PlayerPage> {
     if (song == null) {
       return Scaffold(
         backgroundColor: const Color(0xFF0E1211),
-        appBar: AppBar(
+        body: Center(
-          backgroundColor: Colors.transparent,
-          elevation: 0,
-          leading: IconButton(
-            icon: const Icon(Icons.arrow_back_ios_new, color: Colors.white),
-            onPressed: () => Navigator.pop(context),
-          ),
-          title: const Text(
-            '正在播放',
-            style: TextStyle(color: Colors.white, fontSize: 16),
-          ),
-          centerTitle: true,
-        ),
-        body: const Center(
           child: Column(
             mainAxisAlignment: MainAxisAlignment.center,
             children: [
-              Icon(Icons.music_off, size: 64, color: Colors.grey),
+              const Text(
-              SizedBox(height: 16),
-              Text(
                 '没有正在播放的歌曲',
                 style: TextStyle(color: Colors.grey),
               ),
-              SizedBox(height: 16),
+              const SizedBox(height: 16),
-              Text(
+              ElevatedButton(
-                '请先在首页点击一首歌曲',
+                onPressed: _closePage,
-                style: TextStyle(color: Colors.grey, fontSize: 12),
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: const Color(0xFFB8D4D0),
+                  foregroundColor: Colors.black87,
+                ),
+                child: const Text('返回'),
               ),
             ],
           ),
@@ -63,20 +75,7 @@ class _PlayerPageState extends State<PlayerPage> {
     }
 
     final isPlaying = service.isPlaying;
-    final position = service.position;
     final duration = service.duration;
-    final bufferedPosition = service.bufferedPosition;
-
-    final progress = duration.inMilliseconds > 0
-        ? position.inMilliseconds / duration.inMilliseconds
-        : 0.0;
-
-    final bufferProgress = duration.inMilliseconds > 0
-        ? (bufferedPosition.inMilliseconds / duration.inMilliseconds)
-            .clamp(0.0, 1.0)
-        : 0.0;
-
-    final displayProgress = _dragProgress ?? progress;
 
     return Scaffold(
       backgroundColor: const Color(0xFF0E1211),
@@ -85,7 +84,7 @@ class _PlayerPageState extends State<PlayerPage> {
         elevation: 0,
         leading: IconButton(
           icon: const Icon(Icons.arrow_back_ios_new, color: Colors.white),
-          onPressed: () => Navigator.pop(context),
+          onPressed: _closePage,
         ),
         title: const Text(
           '正在播放',
@@ -157,17 +156,41 @@ class _PlayerPageState extends State<PlayerPage> {
               ],
             ),
             const SizedBox(height: 40),
-            Column(
+            _buildProgressSection(service, duration),
+            const SizedBox(height: 32),
+            _buildControlButtons(service, isPlaying),
+            const SizedBox(height: 16),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildProgressSection(AudioService service, Duration duration) {
+    return ValueListenableBuilder(
+      valueListenable: service.positionNotifier,
+      builder: (context, position, _) {
+        final progress = duration.inMilliseconds > 0
+            ? position.inMilliseconds / duration.inMilliseconds
+            : 0.0;
+
+        final bufferProgress = duration.inMilliseconds > 0
+            ? (service.bufferedNotifier.value.inMilliseconds /
+                    duration.inMilliseconds)
+                .clamp(0.0, 1.0)
+            : 0.0;
+
+        final displayProgress = _dragProgress ?? progress;
+
+        return Column(
           children: [
             SizedBox(
               height: 20,
               child: LayoutBuilder(
                 builder: (context, constraints) {
                   final width = constraints.maxWidth;
-                      final bufferWidth =
+                  final bufferWidth = width * bufferProgress.clamp(0.0, 1.0);
-                          width * bufferProgress.clamp(0.0, 1.0);
+                  final progressWidth = width * displayProgress.clamp(0.0, 1.0);
-                      final progressWidth =
-                          width * displayProgress.clamp(0.0, 1.0);
 
                   return Stack(
                     alignment: Alignment.centerLeft,
@@ -220,8 +243,7 @@ class _PlayerPageState extends State<PlayerPage> {
                             onChangeEnd: (value) {
                               final newPosition = Duration(
                                 milliseconds:
-                                        (value * duration.inMilliseconds)
+                                    (value * duration.inMilliseconds).round(),
-                                            .round(),
                               );
                               service.seekTo(newPosition);
                               setState(() {
@@ -256,9 +278,13 @@ class _PlayerPageState extends State<PlayerPage> {
               ],
             ),
           ],
-            ),
+        );
-            const SizedBox(height: 32),
+      },
-            Row(
+    );
+  }
+
+  Widget _buildControlButtons(AudioService service, bool isPlaying) {
+    return Row(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         IconButton(
@@ -281,8 +307,8 @@ class _PlayerPageState extends State<PlayerPage> {
         Container(
           width: 56,
           height: 56,
-                  decoration: const BoxDecoration(
+          decoration: BoxDecoration(
-                    color: Color(0xFFB8D4D0),
+            color: const Color(0xFFB8D4D0),
             shape: BoxShape.circle,
           ),
           child: IconButton(
@@ -303,9 +329,7 @@ class _PlayerPageState extends State<PlayerPage> {
           padding: const EdgeInsets.all(12),
         ),
         IconButton(
-                  onPressed: () {
+          onPressed: _openPlaylist,
-                    navigatorKey.currentState?.pushNamed('/playlist');
-                  },
           icon: const Icon(
             Icons.playlist_play_outlined,
             color: Color(0xFFB8D4D0),
@@ -315,11 +339,6 @@ class _PlayerPageState extends State<PlayerPage> {
         ),
         const SizedBox(width: 4),
       ],
-            ),
-            const SizedBox(height: 16),
-          ],
-        ),
-      ),
     );
   }
 }

lib/services/audio_player_handler.dart

@@ -0,0 +1,90 @@
+// lib/services/audio_player_handler.dart
+import 'package:audio_service/audio_service.dart';
+import 'playback_service.dart';
+import 'audio_service.dart' as local_audio;
+
+class AudioPlayerHandler extends BaseAudioHandler {
+  final PlaybackService _playback = PlaybackService();
+  late final local_audio.AudioService _localAudio;
+
+  MediaItem? _currentMediaItem;
+
+  AudioPlayerHandler() {
+    _localAudio = local_audio.AudioService();
+
+    // 1. 监听播放状态（只更新 playing）
+    _playback.player.stream.playing.listen((playing) {
+      playbackState.add(playbackState.value.copyWith(
+        playing: playing,
+      ));
+    });
+
+    // 2. ⭐ 进度更新：跳过，因为当前版本不支持 position 参数
+    //    通知栏进度条不会动，但播放/暂停/切歌功能正常
+    //    如果后续需要，可以升级 audio_service 版本或改用其他方案
+
+    // 3. 监听播放完成（触发下一首）
+    _playback.player.stream.completed.listen((_) {
+      _localAudio.next();
+    });
+
+    // 4. 监听时长变化，更新 MediaItem
+    _playback.player.stream.duration.listen((duration) {
+      if (_currentMediaItem != null) {
+        _currentMediaItem = _currentMediaItem!.copyWith(duration: duration);
+        mediaItem.add(_currentMediaItem);
+      }
+    });
+  }
+
+  /// 外部调用更新通知栏
+  void updateNotification({
+    required String id,
+    required String title,
+    required String artist,
+  }) {
+    _currentMediaItem = MediaItem(
+      id: id,
+      title: title,
+      artist: artist,
+      duration: _playback.player.state.duration,
+    );
+    mediaItem.add(_currentMediaItem);
+  }
+
+  // ---- AudioHandler 接口实现 ----
+  @override
+  Future<void> play() async {
+    _playback.resume();
+  }
+
+  @override
+  Future<void> pause() async {
+    _playback.pause();
+  }
+
+  @override
+  Future<void> stop() async {
+    _playback.stop();
+  }
+
+  @override
+  Future<void> seek(Duration position) async {
+    _playback.seek(position);
+  }
+
+  @override
+  Future<void> skipToNext() async {
+    _localAudio.next();
+  }
+
+  @override
+  Future<void> skipToPrevious() async {
+    _localAudio.previous();
+  }
+
+  @override
+  Future<void> click([MediaButton button = MediaButton.media]) async {
+    // 默认行为：打开 App
+  }
+}

lib/services/audio_service.dart

@@ -4,18 +4,12 @@ import 'package:flutter/material.dart';
 import 'package:media_kit/media_kit.dart';
 import 'playback_service.dart';
 
-// ============================================================
-// 播放模式
-// ============================================================
 enum PlayMode {
-  sequential, // 顺序循环
+  sequential,
-  repeatOne, // 单曲循环
+  repeatOne,
-  shuffle, // 随机播放
+  shuffle,
 }
 
-// ============================================================
-// 歌曲模型
-// ============================================================
 class Song {
   final String id;
   final String title;
@@ -30,49 +24,43 @@ class Song {
   });
 }
 
-// ============================================================
-// AudioService - 播放状态管理与 UI 数据源
-// ============================================================
 class AudioService extends ChangeNotifier {
-  // ---------- 单例 ----------
   static final AudioService _instance = AudioService._internal();
   factory AudioService() => _instance;
   AudioService._internal();
 
-  // ---------- 播放状态 ----------
+  // ---- 基础状态（低频，触发 UI 重建） ----
   Song? _currentSong;
   bool _isPlaying = false;
-  Duration _position = Duration.zero;
-  Duration _duration = Duration.zero;
-  Duration _bufferedPosition = Duration.zero;
-
-  // ---------- 播放模式 ----------
   PlayMode _playMode = PlayMode.sequential;
 
-  // ---------- 播放队列 ----------
+  // ---- 播放队列 ----
   List<Song> _queue = [];
   int _currentIndex = -1;
-
-  // ---------- 随机播放相关 ----------
   List<int> _shuffledIndices = [];
   int _shuffledIndex = -1;
 
-  // ---------- 监听控制 ----------
+  // ---- ⭐ 高频进度（用 ValueNotifier，不触发全局重建） ----
+  final ValueNotifier<Duration> positionNotifier = ValueNotifier(Duration.zero);
+  final ValueNotifier<Duration> durationNotifier = ValueNotifier(Duration.zero);
+  final ValueNotifier<Duration> bufferedNotifier = ValueNotifier(Duration.zero);
+
   bool _listening = false;
   final List<StreamSubscription> _subscriptions = [];
 
-  // ---------- Getter ----------
+  // ---- Getter（高频字段不走 ChangeNotifier） ----
   Song? get currentSong => _currentSong;
   bool get isPlaying => _isPlaying;
-  Duration get position => _position;
-  Duration get duration => _duration;
-  Duration get bufferedPosition => _bufferedPosition;
   PlayMode get playMode => _playMode;
   List<Song> get queue => List.unmodifiable(_queue);
   int get currentIndex => _currentIndex;
   bool get hasQueue => _queue.isNotEmpty;
 
-  // ---------- 播放模式图标 ----------
+  // ---- 兼容旧代码：提供 getter 返回 ValueNotifier 的值 ----
+  Duration get position => positionNotifier.value;
+  Duration get duration => durationNotifier.value;
+  Duration get bufferedPosition => bufferedNotifier.value;
+
   IconData get playModeIcon {
     switch (_playMode) {
       case PlayMode.sequential:
@@ -84,7 +72,7 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ---------- 播放模式切换 ----------
+  // ---- 切换播放模式 ----
   void togglePlayMode() {
     switch (_playMode) {
       case PlayMode.sequential:
@@ -100,7 +88,7 @@ class AudioService extends ChangeNotifier {
     notifyListeners();
   }
 
-  // ---------- 设置播放队列 ----------
+  // ---- 设置播放队列 ----
   void setQueue(List<Song> queue, {int startIndex = 0}) {
     if (queue.isEmpty) {
       _clearQueue();
@@ -110,7 +98,6 @@ class AudioService extends ChangeNotifier {
     _queue = List.from(queue);
     _currentIndex = startIndex.clamp(0, _queue.length - 1);
 
-    // 初始化随机播放索引
     _shuffledIndices = List.generate(_queue.length, (i) => i);
     _shuffledIndices.shuffle();
     _shuffledIndex = _shuffledIndices.indexOf(_currentIndex);
@@ -119,11 +106,9 @@ class AudioService extends ChangeNotifier {
       _currentIndex = _shuffledIndices[0];
     }
 
-    // 播放当前歌曲
     _playCurrent();
   }
 
-  // ---------- 清空队列 ----------
   void _clearQueue() {
     _queue.clear();
     _currentIndex = -1;
@@ -132,18 +117,15 @@ class AudioService extends ChangeNotifier {
     stopPlay();
   }
 
-  // ---------- 播放指定歌曲（外部入口） ----------
+  // ---- 播放指定歌曲 ----
   Future<void> playSong(Song song) async {
-    // 如果当前队列不包含这首歌，替换队列
     if (_queue.isEmpty || _queue[_currentIndex].id != song.id) {
       setQueue([song], startIndex: 0);
     } else {
-      // 如果已经在队列中，直接播放
       _playCurrent();
     }
   }
 
-  // ---------- 播放当前索引歌曲 ----------
   void _playCurrent() {
     if (_currentIndex < 0 || _currentIndex >= _queue.length) {
       stopPlay();
@@ -152,9 +134,11 @@ class AudioService extends ChangeNotifier {
 
     final song = _queue[_currentIndex];
     _currentSong = song;
-    _position = Duration.zero;
+
-    _duration = Duration.zero;
+    // ⭐ 重置进度（用 ValueNotifier）
-    _bufferedPosition = Duration.zero;
+    positionNotifier.value = Duration.zero;
+    durationNotifier.value = Duration.zero;
+    bufferedNotifier.value = Duration.zero;
 
     _startListening();
     notifyListeners();
@@ -163,15 +147,13 @@ class AudioService extends ChangeNotifier {
       return;
     }
 
-    // 由 PlaybackService 实际播放，状态由流更新
     PlaybackService().play(song.url!);
   }
 
-  // ---------- 播放下一首 ----------
+  // ---- 下一首 ----
   void next() {
     if (_queue.isEmpty) return;
 
-    // 随机模式
     if (_playMode == PlayMode.shuffle) {
       if (_shuffledIndices.isEmpty) return;
       final nextIdx = (_shuffledIndex + 1) % _shuffledIndices.length;
@@ -181,17 +163,15 @@ class AudioService extends ChangeNotifier {
       return;
     }
 
-    // 顺序/单曲模式
     final nextIdx = (_currentIndex + 1) % _queue.length;
     _currentIndex = nextIdx;
     _playCurrent();
   }
 
-  // ---------- 播放上一首 ----------
+  // ---- 上一首 ----
   void previous() {
     if (_queue.isEmpty) return;
 
-    // 随机模式
     if (_playMode == PlayMode.shuffle) {
       if (_shuffledIndices.isEmpty) return;
       final prevIdx = (_shuffledIndex - 1) % _shuffledIndices.length;
@@ -205,7 +185,6 @@ class AudioService extends ChangeNotifier {
       return;
     }
 
-    // 顺序/单曲模式
     final prevIdx = (_currentIndex - 1) % _queue.length;
     if (prevIdx < 0) {
       _currentIndex = _queue.length - 1;
@@ -215,7 +194,7 @@ class AudioService extends ChangeNotifier {
     _playCurrent();
   }
 
-  // ---------- 播放/暂停切换 ----------
+  // ---- 播放/暂停 ----
   void togglePlay() {
     if (_currentSong == null) return;
 
@@ -224,39 +203,21 @@ class AudioService extends ChangeNotifier {
     } else {
       PlaybackService().resume();
     }
-    // 状态由 player.stream.playing 更新
   }
 
-  // ---------- 停止播放 ----------
   void stopPlay() {
     _currentSong = null;
     _isPlaying = false;
-    _position = Duration.zero;
+    positionNotifier.value = Duration.zero;
-    _duration = Duration.zero;
+    durationNotifier.value = Duration.zero;
-    _bufferedPosition = Duration.zero;
+    bufferedNotifier.value = Duration.zero;
     _stopListening();
     notifyListeners();
   }
 
-  // ---------- Seek ----------
   void seekTo(Duration position) {
     PlaybackService().seek(position);
-    _position = position;
+    positionNotifier.value = position;
-    notifyListeners();
-  }
-
-  // ---------- 处理播放结束 ----------
-  void _onPlaybackCompleted() {
-    if (_queue.isEmpty) return;
-
-    // 单曲循环模式
-    if (_playMode == PlayMode.repeatOne) {
-      _playCurrent();
-      return;
-    }
-
-    // 其他模式：播放下一首
-    next();
   }
 
   void clearQueue() {
@@ -268,7 +229,7 @@ class AudioService extends ChangeNotifier {
     notifyListeners();
   }
 
-  // ---------- 监听 media_kit 状态 ----------
+  // ---- 监听 media_kit 状态 ----
   void _startListening() {
     if (_listening) return;
     _listening = true;
@@ -279,39 +240,30 @@ class AudioService extends ChangeNotifier {
       player.stream.playing.listen((playing) {
         if (_isPlaying != playing) {
           _isPlaying = playing;
-          notifyListeners();
+          notifyListeners(); // 只有播放状态变化才刷新
         }
       }),
     );
 
+    // ⭐ 进度更新：只更新 ValueNotifier，不触发全局重建
     _subscriptions.add(
       player.stream.position.listen((position) {
-        if (_position != position) {
+        positionNotifier.value = position;
-          _position = position;
-          notifyListeners();
-        }
       }),
     );
 
     _subscriptions.add(
       player.stream.duration.listen((duration) {
-        if (_duration != duration) {
+        durationNotifier.value = duration;
-          _duration = duration;
-          notifyListeners();
-        }
       }),
     );
 
     _subscriptions.add(
       player.stream.buffer.listen((buffer) {
-        if (_bufferedPosition != buffer) {
+        bufferedNotifier.value = buffer;
-          _bufferedPosition = buffer;
-          notifyListeners();
-        }
       }),
     );
 
-    // ✅ 播放结束监听
     _subscriptions.add(
       player.stream.completed.listen((_) {
         _onPlaybackCompleted();
@@ -327,9 +279,23 @@ class AudioService extends ChangeNotifier {
     _subscriptions.clear();
   }
 
-  // ---------- 资源释放 ----------
+  void _onPlaybackCompleted() {
+    if (_queue.isEmpty) return;
+
+    if (_playMode == PlayMode.repeatOne) {
+      _playCurrent();
+      return;
+    }
+
+    next();
+  }
+
+  @override
   void dispose() {
     _stopListening();
+    positionNotifier.dispose();
+    durationNotifier.dispose();
+    bufferedNotifier.dispose();
     PlaybackService().dispose();
     super.dispose();
   }

lib/widgets/global_mini_player.dart

@@ -1,3 +1,4 @@
+// lib/widgets/global_mini_player.dart
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../services/audio_service.dart';
@@ -8,15 +9,16 @@ class GlobalMiniPlayer extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final audioService = context.watch<AudioService>();
+    // ⭐ 用 Selector 只监听 currentSong（低频变化）
-    final song = audioService.currentSong;
+    final song = context.select<AudioService, Song?>((s) => s.currentSong);
+    // ⭐ 只监听播放状态（低频变化）
+    final isPlaying = context.select<AudioService, bool>((s) => s.isPlaying);
 
     final bottomPadding = MediaQuery.of(context).padding.bottom;
 
     return Stack(
       clipBehavior: Clip.none,
       children: [
-        // 底层遮罩
         Positioned(
           left: 0,
           right: 0,
@@ -26,7 +28,6 @@ class GlobalMiniPlayer extends StatelessWidget {
             color: const Color(0xFF1A1F1E),
           ),
         ),
-        // 上层主体
         Positioned(
           left: 0,
           right: 0,
@@ -38,7 +39,6 @@ class GlobalMiniPlayer extends StatelessWidget {
             child: Container(
               height: 56,
               color: const Color(0xFF1A1F1E),
-              // ⭐ 用 Material 包裹 InkWell，获得更好的点击反馈
               child: Material(
                 color: Colors.transparent,
                 child: InkWell(
@@ -47,7 +47,6 @@ class GlobalMiniPlayer extends StatelessWidget {
                       navigatorKey.currentState?.pushNamed('/player');
                     }
                   },
-                  // ⭐ 让整个区域都响应点击，包括空白部分
                   highlightColor: Colors.white.withOpacity(0.05),
                   splashColor: Colors.white.withOpacity(0.1),
                   child: Row(
@@ -81,7 +80,6 @@ class GlobalMiniPlayer extends StatelessWidget {
                                 fontSize: 14,
                                 fontWeight: FontWeight.w500,
                                 color: Colors.white,
-                                // ⭐ 强制去掉下划线
                                 decoration: TextDecoration.none,
                               ),
                               maxLines: 1,
@@ -94,7 +92,6 @@ class GlobalMiniPlayer extends StatelessWidget {
                                 color: song != null
                                     ? Colors.grey[400]
                                     : Colors.grey[600],
-                                // ⭐ 强制去掉下划线
                                 decoration: TextDecoration.none,
                               ),
                               maxLines: 1,
@@ -105,7 +102,7 @@ class GlobalMiniPlayer extends StatelessWidget {
                       ),
                       IconButton(
                         icon: Icon(
-                          song != null && audioService.isPlaying
+                          song != null && isPlaying
                               ? Icons.pause
                               : Icons.play_arrow,
                           color: song != null ? Colors.white : Colors.grey[600],
@@ -113,7 +110,7 @@ class GlobalMiniPlayer extends StatelessWidget {
                         ),
                         onPressed: () {
                           if (song != null) {
-                            audioService.togglePlay();
+                            context.read<AudioService>().togglePlay();
                           }
                         },
                       ),

pubspec.lock

@@ -9,6 +9,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.9"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.7.0"
   async:
     dependency: transitive
     description:
@@ -17,6 +25,38 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.13.1"
+  audio_service:
+    dependency: "direct main"
+    description:
+      name: audio_service
+      sha256: "95f3267f3449eb5cf71c8fcf1d556f57af1e898e2dc5815fb168d1843653edb7"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.18.19"
+  audio_service_platform_interface:
+    dependency: transitive
+    description:
+      name: audio_service_platform_interface
+      sha256: "6283782851f6c8b501b60904a32fc7199dc631172da0629d7301e66f672ab777"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.1.3"
+  audio_service_web:
+    dependency: transitive
+    description:
+      name: audio_service_web
+      sha256: b8ea9243201ee53383157fbccf13d5d2a866b5dda922ec19d866d1d5d70424df
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.1.4"
+  audio_session:
+    dependency: "direct main"
+    description:
+      name: audio_session
+      sha256: "2b7fff16a552486d078bfc09a8cde19f426dc6d6329262b684182597bec5b1ac"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.1.25"
   boolean_selector:
     dependency: transitive
     description:
@@ -41,6 +81,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.2"
+  code_assets:
+    dependency: transitive
+    description:
+      name: code_assets
+      sha256: bf394f466ba9205f1812a0433b392d6af280f155f56651eda7c18cc32ed493b8
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.2.1"
   collection:
     dependency: transitive
     description:
@@ -118,6 +166,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_cache_manager:
+    dependency: "direct main"
+    description:
+      name: flutter_cache_manager
+      sha256: "1de7849213b4c73c85aca7e0ac687a9a5d82ccdb594366b9dcc26cb6a2189cd2"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.4.2"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -136,6 +192,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  hooks:
+    dependency: transitive
+    description:
+      name: hooks
+      sha256: "9a62a50b50b769a737bc0a8ff381f333529df3ab746b2f6b02e83760231455ba"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.2"
   http:
     dependency: transitive
     description:
@@ -160,6 +224,38 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.8.0"
+  jni:
+    dependency: transitive
+    description:
+      name: jni
+      sha256: f038e58b4dc2c9037f50e233175086337e0b305e356d28211bf55f21c504cbd3
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.3"
+  jni_flutter:
+    dependency: transitive
+    description:
+      name: jni_flutter
+      sha256: "7b717011ea40d04fd47c2731d3d1d36eb99eba3435c2753d62489e8c3c9991d5"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.2"
+  jni_util:
+    dependency: transitive
+    description:
+      name: jni_util
+      sha256: "1ba86da04a5f2bf18fde2edb235587e70c5b0fc5bd4ba955f46b00942c3fc35f"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.0"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.7.2"
   leak_tracker:
     dependency: transitive
     description:
@@ -192,6 +288,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "6.1.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.3.0"
   matcher:
     dependency: transitive
     description:
@@ -288,6 +392,22 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.0"
+  objective_c:
+    dependency: transitive
+    description:
+      name: objective_c
+      sha256: b7fb95a6d9a4f009edd63dc5ac69f07420b23a16161c6dd8660290b59c602e8e
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "9.5.0"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: ffcf4cf3d6c0b74ac43708d9f56625506e8a68aa935abe9d267a7330f320eb5d
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.0.0"
   path:
     dependency: transitive
     description:
@@ -296,6 +416,30 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.9.1"
+  path_provider:
+    dependency: transitive
+    description:
+      name: path_provider
+      sha256: a7f4874f987173da295a61c181b8ee71dab59b332a486b391babf26a1b884825
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.1.6"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "69cbd515a62b94d32a7944f086b2f82b4ac40a1d45bebfc00813a430ab2dabcd"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.3.1"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "2a376b7d6392d80cd3705782d2caa734ca4727776db0b6ec36ef3f1855197699"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.6.0"
   path_provider_linux:
     dependency: transitive
     description:
@@ -320,6 +464,54 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.3.0"
+  permission_handler:
+    dependency: "direct main"
+    description:
+      name: permission_handler
+      sha256: "59adad729136f01ea9e35a48f5d1395e25cba6cea552249ddbe9cf950f5d7849"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "11.4.0"
+  permission_handler_android:
+    dependency: transitive
+    description:
+      name: permission_handler_android
+      sha256: d3971dcdd76182a0c198c096b5db2f0884b0d4196723d21a866fc4cdea057ebc
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "12.1.0"
+  permission_handler_apple:
+    dependency: transitive
+    description:
+      name: permission_handler_apple
+      sha256: f49cb15a064ea9d974fc7fbb302099353b7b170d07284e86e264561579e5bcf8
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "9.6.1"
+  permission_handler_html:
+    dependency: transitive
+    description:
+      name: permission_handler_html
+      sha256: "6ea98b3f17f60d3b527f2647ed2ab4dc0f6bfe25b22cb1c363f5d8f62252f6ac"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.1.4+1"
+  permission_handler_platform_interface:
+    dependency: transitive
+    description:
+      name: permission_handler_platform_interface
+      sha256: a5c8a97ecf5616112a5b16d4b8e9ec0e5ae90ef63ac69c0d7b8ae240be760b23
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "4.4.0"
+  permission_handler_windows:
+    dependency: transitive
+    description:
+      name: permission_handler_windows
+      sha256: caeae01858a0a7d2df67a445ac98e1ad95e55a0e77c73044f4e9b1c8c2289cbd
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.2"
   petitparser:
     dependency: transitive
     description:
@@ -360,6 +552,30 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "6.1.5+1"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.2.0"
+  record_use:
+    dependency: transitive
+    description:
+      name: record_use
+      sha256: "2551bd8eecfe95d14ae75f6021ad0248be5c27f138c2ec12fcb52b500b3ba1ed"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.6.0"
+  rxdart:
+    dependency: transitive
+    description:
+      name: rxdart
+      sha256: "5c3004a4a8dbb94bd4bf5412a4def4acdaa12e12f269737a5751369e12d1a962"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.28.0"
   safe_local_storage:
     dependency: transitive
     description:
@@ -437,6 +653,46 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.10.2"
+  sqflite:
+    dependency: "direct main"
+    description:
+      name: sqflite
+      sha256: "58a799e6ac17dd32fbab93813d39ed835a75ccc0f8f85b8955fe318c6712b082"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.4.3"
+  sqflite_android:
+    dependency: transitive
+    description:
+      name: sqflite_android
+      sha256: d0548f9d7422a2dae99ec6f8b0a3074463b132d216fa5ba0d230eeefc901983b
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.4.3"
+  sqflite_common:
+    dependency: transitive
+    description:
+      name: sqflite_common
+      sha256: "5bf6a55c166e73bf651ba7ec3ed486e577620e3dc8f3a9c6a258a8031b624590"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.5.11"
+  sqflite_darwin:
+    dependency: transitive
+    description:
+      name: sqflite_darwin
+      sha256: c86ca18b8f666bbf903924687fe21cc16fc385d086005067e26619ca530bef9f
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.4.3+1"
+  sqflite_platform_interface:
+    dependency: transitive
+    description:
+      name: sqflite_platform_interface
+      sha256: f84939f84350d92d04416f8bc4dc52d3896aec7716cc9e80cf0146342139dc50
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.4.1"
   stack_trace:
     dependency: transitive
     description:
@@ -557,6 +813,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "6.6.1"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.1.3"
 sdks:
   dart: ">=3.12.0 <4.0.0"
   flutter: ">=3.44.0"

pubspec.yaml

@@ -36,6 +36,11 @@ dependencies:
   provider: ^6.1.2
   dio: ^5.4.0         # HTTP 客户端
   xml: ^6.5.0
+  audio_service: ^0.18.13
+  audio_session: ^0.1.21
+  permission_handler: ^11.3.1
+  flutter_cache_manager: ^3.3.1
+  sqflite: ^2.3.0
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.