Android：音乐播放器在一段时间后自动启动

Question

在我的应用中，我正在使用媒体播放器来播放音乐文件。它有效，但最终会在一段时间后开始播放，音乐开始播放。我不知道问题出在哪里。下面，我发布了我的代码：

媒体播放器服务

public class ChalisaService extends Service implements OnCompletionListener
{
static MediaPlayer mediaPlayer;
static int playerFlag = 0;
TelephonyManager tm;
ActivityManager actManager;
/**
 * 0 for stop/pause
 * 1 for play*/
@Override
public IBinder onBind(Intent intent) 
{
    return null;
}//onBind

@Override
public void onCreate() 
{
    super.onCreate();

    mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.chalisa);
    mediaPlayer.setVolume(100, 100);
    mediaPlayer.setOnCompletionListener(this);
    tm = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
    tm.listen(mPhoneListener, PhoneStateListener.LISTEN_CALL_STATE);
}//onCreate

@Override
public int onStartCommand(Intent intent, int flags, int startId) 
{
    if(mediaPlayer.isPlaying())
    {
        mediaPlayer.pause();
        /*HanuAlarm.txtPlay.setText("Play");
        HanuAlarm.btn_Play.setBackgroundResource(R.drawable.btnplay);*/
        playerFlag = 0;
    }//if
    else
    {
        mediaPlayer.start();
        /*HanuAlarm.txtPlay.setText("Pause");
        HanuAlarm.btn_Play.setBackgroundResource(R.drawable.btnpause);*/
        playerFlag = 1;
    }//else

    startForeground(0, null);
    return playerFlag;
}//onStartCommand

@Override
public void onDestroy() 
{
    super.onDestroy();
    /*//mediaPlayer.stop();
    //mediaPlayer.release();
    playerFlag = 0;
    Log.v("Chalisa service", "on destroy called");*/
}//onDestroy

private PhoneStateListener mPhoneListener = new PhoneStateListener() {
    public void onCallStateChanged(int state, String incomingNumber) {
        switch (state) {
        case TelephonyManager.CALL_STATE_RINGING:
            if(mediaPlayer.isPlaying())
            {
                mediaPlayer.pause();
                playerFlag = 0;
            }//if
            break;

        case TelephonyManager.CALL_STATE_OFFHOOK:
            if(mediaPlayer.isPlaying())
            {
                mediaPlayer.pause();
                playerFlag = 0;
            }//if
            break;

            /**
             * Nitish 
             * 26 Sep 2012, Wed 
             * 11:50 AM*/
        case TelephonyManager.CALL_STATE_IDLE:
            if(!mediaPlayer.isPlaying())
            {
                mediaPlayer.start();
                playerFlag = 1;
            }//if
        default:
            Log.d("Chalisa Service", "Unknown phone state=" + state);
        }
    } 
};

public void onCompletion(MediaPlayer mp) 
{
    mp.stop();
    mp.release();
    playerFlag = 0;
    stopSelf();
    updateUI();
    Log.v("Chalisa Service media player", "on completion listener called");
}

private void updateUI() 
{
    Intent in = new Intent("com.dzo.HanumanChalisaWithAudioAndAlarm.UPDATE_UI");
    in.putExtra("Player_FLAG_VALUE", playerFlag);
    getApplicationContext().sendBroadcast(in);
}
}//ChalisaService