Question

我编写了一个像APP一样的常用MediaPlayer。现在我有一对带有内置遥控器的耳机，用于控制音量，暂停和播放歌曲。我的想法是用这个来控制我的MediaPlayer服务。但我无法在网上找到有关我的问题的任何内容。有人可以给我一个提示吗？

Answer 1

我不知道为什么我会对我的问题进行投票，但我会为面临同样问题的其他人回答。

tasks.whenTaskAdded {task ->
    if(task.name.contains("unwantedTask")) {
        task.enabled = false
    }
}

在主Activity.onCreate（）

中调用此方法

public class MediaService extends Service implements
    MediaPlayer.OnPreparedListener, MediaPlayer.OnErrorListener,
    MediaPlayer.OnCompletionListener {


private IntentFilter intentFilterMediaButton = new IntentFilter(Intent.ACTION_MEDIA_BUTTON);
private MediaButtonIntentReceiver mMediaButtonReceiver = new MediaButtonIntentReceiver();

@Override
public void onPrepared(MediaPlayer mediaPlayer) {
    registerReceiver(this.mMediaButtonReceiver, this.intentFilterMediaButton);
    player.start();
}
public static class MediaButtonIntentReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String intentAction = intent.getAction();
        if (!Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
            return;
        }
        KeyEvent event =   (KeyEvent)intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
        if (event == null) {
            return;
        }
        int action = event.getAction();
        if (action == KeyEvent.ACTION_DOWN) {
            switch (action){
                case 0: // Button down
                    // do something
                    Toast.makeText(context, "BUTTON PRESSED!", Toast.LENGTH_SHORT).show();
                    break;
            }
        }
        abortBroadcast();
    }
}

并把它放入Manifest

    AudioManager manager = (AudioManager) getSystemService(AUDIO_SERVICE);
    if (manager != null) {
        manager.registerMediaButtonEventReceiver(new ComponentName(getPackageName(), MediaService.MediaButtonIntentReceiver.class.getName()));
    }

控制MediaPlayer服务的音频线

1 个答案: