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

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>();
-    final song = audioService.currentSong;
+    // ⭐ 用 Selector 只监听 currentSong（低频变化）
+    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();
                           }
                         },
                       ),