可以使用flutter_media_notification插件来实现在移动屏幕锁定时控制Flutter应用程序中assets_audio_player插件播放音乐的功能。以下是实现此功能的示例代码:
首先,将flutter_media_notification插件添加到flutter项目的pubspec.yaml文件中。
dependencies: flutter_media_notification: ^1.0.11
然后,导入flutter_media_notification插件和assets_audio_player插件:
import 'package:flutter_media_notification/flutter_media_notification.dart'; import 'package:assets_audio_player/assets_audio_player.dart';
在播放音乐之前,我们需要在应用程序的初始化代码中配置flutter_media_notification:
void main() async { await FlutterMediaNotification.initialize(); runApp(MyApp()); }
播放音乐的代码块应类似于以下代码:
var assetsAudioPlayer = AssetsAudioPlayer(); await assetsAudioPlayer.open(Audio('assets/audio.mp3')); await assetsAudioPlayer.play();
接下来,配置状态管理以获取应用程序当前的音乐播放状态。
class _MyAppState extends State
@override void initState() { super.initState(); assetsAudioPlayer .playlistAudioFinished .listen((Playing playing) { setState(() => _isPlaying = false); FlutterMediaNotification.showNotification( title: '', author: '', isPlaying: _isPlaying, ); }); assetsAudioPlayer.current.listen((Playing playing) { setState(() => _isPlaying = true); FlutterMediaNotification.showNotification( title: '', author: '', isPlaying: _isPlaying, ); }); }
//... }
最后,在应用程序的build方法中编写UI代码,包括播放国歌的按钮和在移动屏幕锁定时显示的媒体通知。
return MaterialApp( home: Scaffold( appBar: AppBar( title: const Text('Music App'), ), body: Center( child: IconButton( icon: Icon(_isPlaying ? Icons.pause_circle_outline : Icons.play_circle_outline), onPressed: () async { if (_isPlaying) { await assetsAudioPlayer.pause(); } else { await assetsAudioPlayer.play(); } setState(() => _isPlaying = !_isPlaying); }, ), ), ), );
然后就可以尝试在移动屏幕锁定时按下音乐播放控制按钮,以控制在Flutter应用程序中使用assets