android - 打开我的 Activity 3秒后，SoundPool无法播放

Question

我尝试在用户单击按钮时播放声音，如果我在 Activity 打开的前3-5秒内单击按钮，则效果很好，但是如果我再等待3-5秒，则没有声音。关于声音，我也没有任何错误。

任何想法都将适用!

更新:这仅在我的HTC上发生。如果我在三星Galaxy S 2上尝试此功能，效果很好!!!

在我的logcat中说:“AudioHardwareQSD:AudioHardware pcm播放将处于待机状态”对此的任何解决方法？？？

@Override
protected void onCreate(Bundle savedInstanceState)
{

    mSoundPoolMap = new HashMap<Integer, Integer>();
    mSoundPool = new SoundPool(16, AudioManager.STREAM_RING, 0);
    mAudioManager= (AudioManager) mcontext.getSystemService(Context.AUDIO_SERVICE);

    mSoundPoolMap.put(1, mSoundPool.load(mcontext, R.raw.tap, 1));}



       @Override
        public void onClick(View v)
        {   
            float streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_RING);
            streamVolume = streamVolume / mAudioManager.getStreamMaxVolume(AudioManager.STREAM_RING);
            mSoundPool.play(mSoundPoolMap.get(1), streamVolume, streamVolume, 1, 0, 1);}

Answer 1

这是我如何使它发挥最佳效果但它却有效的方法...

检查该设备是否来自HTC，然后创建一个播放声音的虚拟通知。另外，您还必须确保您的文件是MP3而不是WAV或OGG。

public static void playSound(int index)
{

    String m_strManufacture = Build.MANUFACTURER;
    Log.i(TAG, "Device Name: " + m_strManufacture);
    if (m_strManufacture.equals("HTC"))
    {


        NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = new Notification();
        Intent notificationIntent = new Intent(mContext, mContext.getClass());
        // set intent so it does not start a new activity
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        // PendingIntent intent = PendingIntent.getActivity(mContext, 0, notificationIntent, 0);
        // mContext.getResources().getResourceName(R.raw.ringer);
        notification.sound = Uri.parse("android.resource://com.yourpackages/raw/" + sound);
        notification.flags |= Notification.FLAG_AUTO_CANCEL;
        notificationManager.notify(0, notification);

    }
    else {//Do the soundpool work....}