现在播放页的实时效果有了

lib/pages/player_page.dart

@@ -43,6 +43,41 @@ class _PlayerPageState extends State<PlayerPage> {
     }
   }
 
+  @override
+  void initState() {
+    super.initState();
+    // ⭐ 页面加载时主动拉取状态（多次重试）
+    _syncStateWithRetry();
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    // ⭐ 依赖变化时（如从后台返回）重新同步
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) {
+        context.read<AudioService>().syncPlayerStateNow();
+      }
+    });
+  }
+
+  void _syncStateWithRetry() {
+    final service = context.read<AudioService>();
+
+    // 立即同步
+    service.syncPlayerStateNow();
+
+    // 延迟重试
+    const delays = [200, 500, 800, 1200];
+    for (final delay in delays) {
+      Future.delayed(Duration(milliseconds: delay), () {
+        if (mounted) {
+          service.syncPlayerStateNow();
+        }
+      });
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final service = context.watch<AudioService>();
@@ -75,7 +110,6 @@ class _PlayerPageState extends State<PlayerPage> {
     }
 
     final isPlaying = service.isPlaying;
-    final duration = service.duration;
 
     return Scaffold(
       backgroundColor: const Color(0xFF0E1211),
@@ -156,7 +190,7 @@ class _PlayerPageState extends State<PlayerPage> {
               ],
             ),
             const SizedBox(height: 40),
-            _buildProgressSection(service, duration),
+            _buildProgressSection(service),
             const SizedBox(height: 32),
             _buildControlButtons(service, isPlaying),
             const SizedBox(height: 16),
@@ -166,12 +200,24 @@ class _PlayerPageState extends State<PlayerPage> {
     );
   }
 
-  Widget _buildProgressSection(AudioService service, Duration duration) {
+  Widget _buildProgressSection(AudioService service) {
-    debugPrint('🎯 [PlayerPage] duration=$duration');
     return ValueListenableBuilder(
       valueListenable: service.positionNotifier,
       builder: (context, position, _) {
-        debugPrint('🎯 [PlayerPage] position=$position, duration=$duration');
+        return ValueListenableBuilder(
+          valueListenable: service.durationNotifier,
+          builder: (context, duration, _) {
+            // ⭐ 如果 duration 为 0，显示加载指示器
+            if (duration.inMilliseconds == 0) {
+              return const Padding(
+                padding: EdgeInsets.symmetric(vertical: 8),
+                child: LinearProgressIndicator(
+                  color: Color(0xFFB8D4D0),
+                  backgroundColor: Color(0xFF2A3332),
+                ),
+              );
+            }
+
             final progress = duration.inMilliseconds > 0
                 ? position.inMilliseconds / duration.inMilliseconds
                 : 0.0;
@@ -191,8 +237,10 @@ class _PlayerPageState extends State<PlayerPage> {
                   child: LayoutBuilder(
                     builder: (context, constraints) {
                       final width = constraints.maxWidth;
-                  final bufferWidth = width * bufferProgress.clamp(0.0, 1.0);
+                      final bufferWidth =
-                  final progressWidth = width * displayProgress.clamp(0.0, 1.0);
+                          width * bufferProgress.clamp(0.0, 1.0);
+                      final progressWidth =
+                          width * displayProgress.clamp(0.0, 1.0);
 
                       return Stack(
                         alignment: Alignment.centerLeft,
@@ -245,7 +293,8 @@ class _PlayerPageState extends State<PlayerPage> {
                                 onChangeEnd: (value) {
                                   final newPosition = Duration(
                                     milliseconds:
-                                    (value * duration.inMilliseconds).round(),
+                                        (value * duration.inMilliseconds)
+                                            .round(),
                                   );
                                   service.seekTo(newPosition);
                                   setState(() {
@@ -283,6 +332,8 @@ class _PlayerPageState extends State<PlayerPage> {
             );
           },
         );
+      },
+    );
   }
 
   Widget _buildControlButtons(AudioService service, bool isPlaying) {

lib/services/audio_service.dart

@@ -130,9 +130,6 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ============================================================
-  // 核心播放逻辑
-  // ============================================================
   void _playCurrent() {
     if (_currentIndex < 0 || _currentIndex >= _queue.length) {
       stopPlay();
@@ -142,9 +139,6 @@ class AudioService extends ChangeNotifier {
     final song = _queue[_currentIndex];
     _currentSong = song;
 
-    // ⭐ 不重置任何 Notifier，完全依赖 stream 推送
-    // position / duration / buffered 由播放器自然更新
-
     _startListening();
     notifyListeners();
 
@@ -154,15 +148,12 @@ class AudioService extends ChangeNotifier {
 
     PlaybackService().play(song.url!);
 
-    // ⭐ 兜底：主动同步一次播放器状态（解决首次加载时 stream 未推送的问题）
+    // ⭐ 延迟同步兜底
     _syncPlayerStateDelayed();
 
     _loadMetadataForCurrentSong();
   }
 
-  // ============================================================
-  // Metadata 加载
-  // ============================================================
   Future<void> _loadMetadataForCurrentSong() async {
     if (_currentIndex < 0 || _currentIndex >= _queue.length) return;
     final song = _queue[_currentIndex];
@@ -192,9 +183,6 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ============================================================
-  // 播放控制
-  // ============================================================
   void next() {
     if (_queue.isEmpty) return;
 
@@ -271,38 +259,39 @@ class AudioService extends ChangeNotifier {
     notifyListeners();
   }
 
-  // ============================================================
+  // ⭐ 公开方法：供 PlayerPage 主动同步
-  // 播放器状态同步（兜底机制）
+  void syncPlayerStateNow() {
-  // ============================================================
-  void _syncPlayerStateDelayed() {
-    _syncPlayerStateNow();
-    Future.delayed(const Duration(milliseconds: 200), () {
-      _syncPlayerStateNow();
-    });
-    Future.delayed(const Duration(milliseconds: 500), () {
-      _syncPlayerStateNow();
-    });
-  }
-
-  void _syncPlayerStateNow() {
     final player = PlaybackService().player;
+    final pos = player.state.position;
     final dur = player.state.duration;
     final buf = player.state.buffer;
 
-    if (dur.inMilliseconds > 0 && durationNotifier.value.inMilliseconds == 0) {
+    debugPrint(
+        '🎯 [AudioService] syncPlayerStateNow: pos=$pos, dur=$dur, buf=$buf');
+
+    // ⭐ 无条件更新（不要只判断 == 0）
+    if (pos.inMilliseconds >= 0) {
+      positionNotifier.value = pos;
+    }
+    if (dur.inMilliseconds > 0) {
       durationNotifier.value = dur;
-      debugPrint('🎯 [AudioService] sync duration: $dur');
     }
-
+    if (buf.inMilliseconds >= 0) {
-    if (buf.inMilliseconds > 0 && bufferedNotifier.value.inMilliseconds == 0) {
       bufferedNotifier.value = buf;
-      debugPrint('🎯 [AudioService] sync buffer: $buf');
     }
   }
 
-  // ============================================================
+  void _syncPlayerStateDelayed() {
-  // media_kit 状态监听
+    syncPlayerStateNow();
-  // ============================================================
+    Future.delayed(const Duration(milliseconds: 200), () {
+      syncPlayerStateNow();
+    });
+    Future.delayed(const Duration(milliseconds: 500), () {
+      syncPlayerStateNow();
+    });
+  }
+
+  // ---- 监听 ----
   void _startListening() {
     if (_listening) return;
     _listening = true;
@@ -327,7 +316,6 @@ class AudioService extends ChangeNotifier {
     _subscriptions.add(
       player.stream.duration.listen((duration) {
         debugPrint('🎯 [AudioService] durationStream: $duration');
-        // 只接受 > 0 的值，避免 0 覆盖正确值
         if (duration.inMilliseconds > 0) {
           durationNotifier.value = duration;
         }
@@ -355,9 +343,6 @@ class AudioService extends ChangeNotifier {
     _subscriptions.clear();
   }
 
-  // ============================================================
-  // 播放完成处理
-  // ============================================================
   void _onPlaybackCompleted() {
     if (_handlingCompletion) {
       debugPrint('⚠️ [service] completed ignored: already handling');