BroadcastReceiver Android

public class HelloBroadReciever extends BroadcastReceiver {

//如果接收的事件发生
@Override
public void onReceive(Context context, Intent intent) {
//则输出日志
Log.e("HelloBroadReciever", "BOOT_COMPLETED!!!!!!!!!!!!!!!!!!!!!!!!!");
Log.e("HelloBroadReciever", ""+intent.getAction());

//则播放一首音乐
MediaPlayer.create(context, R.raw.babayetu).start();
}
}