Question

我想在连接电源时播放歌曲，并在断电时停止播放歌曲，但断电后此歌仍然播放。请分享有关此的工作代码。

public class MyReceiver extends BroadcastReceiver {

  public MyReceiver() {
  }

  @Override
  public void onReceive(Context context, Intent intent) {
    // TODO: This method is called when the BroadcastReceiver is receiving

    MediaPlayer mMediaPlayer = new MediaPlayer();
    mMediaPlayer = MediaPlayer.create(context, R.raw.mysong);

    if (intent.getAction() == Intent.ACTION_POWER_CONNECTED) {
      mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
      mMediaPlayer.setLooping(true);
      mMediaPlayer.start();
    }
    else if (intent.getAction() == Intent.ACTION_POWER_DISCONNECTED) {
      Toast.makeText(context, "POWER DISCONNECTED !!!!!", Toast.LENGTH_SHORT).show();
      mMediaPlayer.stop();
    }
  }

}

Answer 1

此链接将为您提供帮助。您必须为android.intent.action.ACTION_POWER_DISCONNECTED注册Broadcast。并且接收电源断开广播会停止媒体播放器。

https://spark.apache.org/docs/2.1.0/api/R/dapply.html

以上代码为每个广播消息Mediaplayer创建了新对象，这样我就成了问题，用户在接收方法之外。

连接电源时我播放了一首歌，但断电时它并没有停止

1 个答案: