我正在学习Android服务。在我的主活动中有一个按钮,当点击它时,使用MediaPlayer开始播放音频文件,并显示通知。我想在点击通知时停止音乐服务并删除通知。我已经苦思冥想了几个小时,但是无法找出我的错误。这是我的服务类:
public class MusicService extends Service {
public MusicService() {
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
MediaPlayer player = MediaPlayer.create(this, Settings.System.DEFAULT_RINGTONE_URI);
player.setLooping(true);
player.start();
Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
notificationIntent, 0);
Notification notification = new NotificationCompat.Builder(this)
.setContentTitle("Hello")
.setTicker("Hello 2")
.setContentText("Hello 3")
.setSmallIcon(R.drawable.ic_launcher_foreground)
.setContentIntent(pendingIntent)
.setOngoing(true)
.build();
startForeground(NOTIFICATION_ID.FOREGROUND_SERVICE, notification);
return START_STICKY;
}
public interface NOTIFICATION_ID {
public static int FOREGROUND_SERVICE = 101;
}
}