android - 停止音乐和服务

Question

我正在尝试使用 Android 中的服务播放音乐。我正在努力的是停止服务和音乐。这是我的服务:

MediaPlayer mediaPlayer;

public SoundService() {
    super("SoundService");
}

@Override
public IBinder onBind(Intent intent) {
    // TODO: Return the communication channel to the service.
    throw new UnsupportedOperationException("Not yet implemented");
}

@Override
protected void onHandleIntent(Intent intent) {

}

@Override
public void onCreate() {
    super.onCreate();
    mediaPlayer = MediaPlayer.create(getApplicationContext(),R.raw.zenenegy);
}


@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    mediaPlayer.start();
    mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mp) {
            mp.release();
        }
    });
    return START_STICKY;
}

public void stopp(){
    Log.d("SERVICE","STOP");
    stopSelf();
}

@Override
public void onDestroy() {
    super.onDestroy();
}

当我调用“stopp”方法时，我得到了日志，所以服务应该已经停止，但音乐还在继续。我不知道如何停止音乐，因为当我尝试使用 mediPlayer.stop();方法 我总是收到错误消息，所以如果我可以随时停止服务就太好了。这是 Activity 的代码:

public Button zene;
public boolean hang = true;
SoundService soundService;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_fomenu);

    if(hang){
        startService();
    }
}

@Override
protected void onResume() {
    zene = (Button)findViewById(R.id.zene);

    zene.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
                if(hang){
                    soundService.stopp();
                    //soundService.onDestroy();
                }
            hang = !hang;
        }
    });
    super.onResume();
}

public void startService(){
    startService(new Intent(getBaseContext(), SoundService.class));
}

public void stopService(){
    stopService(new Intent(getBaseContext(),SoundService.class));
}

我试过使用 stopService();方法也一样，但是没用。如果有人知道如何停止服务中的音乐，请回复。

Answer 1

声音服务.java

public void stop(){
  Log.d("SERVICE","STOP");
  mp.stop();
  //release the media player if you want to
  stopSelf();
}

一些停止方法是使用 Bound Services或者在您的 onStartCommand 中识别 Intent 操作，然后调用 stop()

看起来像这样

InYourActivity.java

public void stopService(){
    Intent stopIntent = new Intent(getBaseContext(),SoundService.class);
    intent.setAction(SoundService.ACTION_STOP);
    stopService(stopIntent);
}

声音服务.java

public static final String ACTION_STOP = "stop_music_service";

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    if(intent.getAction()!=null && intent.getAction().equals(ACTION_STOP)){
       stop();
    }
    mediaPlayer.start();
    mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mp) {
            mp.release();
        }
    });
    return START_STICKY;
}