目前调通了120全局，准备开始介入播放层，在修bug

lib/services/player_service.dart

@@ -0,0 +1,21 @@
+import 'package:media_kit/media_kit.dart';
+
+class PlayerService {
+  static final PlayerService _instance = PlayerService._internal();
+  factory PlayerService() => _instance;
+  PlayerService._internal();
+
+  final Player _player = Player();
+
+  void play(String url) {
+    _player.open(Media(url));
+  }
+
+  void pause() => _player.pause();
+  void resume() => _player.play();
+  void stop() => _player.stop();
+
+  void dispose() => _player.dispose();
+
+  // 状态监听...
+}