Android:为什么我在点击一下按钮点击后无法播放声音？

Question

我做过如果用户点击按钮然后声音正在播放.但是现在我点击后无法发出水声.我不知道为什么？

这是我用来播放声音的代码.

码:

case R.id.lockView:
        playSound(R.raw.dooropen);
        break;
    }

public void playSound(int resources){
    boolean mStartPlaying = true;
    if (mStartPlaying==true){
        mPlayer = new MediaPlayer();
        Uri uri = Uri.parse("android.resource://com.project.iMystick/" + resources);
        try{
            mPlayer.setDataSource(getApplicationContext(),uri);
            mPlayer.prepare();
            mPlayer.start();
        } 
        catch (IOException e){
            Log.e(LOG_TAG, "prepare() failed");
        }
    } 
    else{
       //   stopPlaying();
        //rePlay.setText("Replay");
        mPlayer.release();
        mPlayer = null;
    }
    mStartPlaying = !mStartPlaying;
}

点击一下后,我在logcat中收到了这种类型的错误信息:

日志:

03-27 16:15:02.737: ERROR/MediaPlayer(1057): Error (-19,0)
03-27 16:15:03.858: DEBUG/AudioSink(34): bufferCount (4) is too small and increased to 12
03-27 16:15:03.858: ERROR/AudioFlinger(34): not enough memory for AudioTrack size=32832
03-27 16:15:03.858: DEBUG/MemoryDealer(34):   AudioTrack (0x12abf8, size=1048576)
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     0: 0012ac10 | 0x00000000 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     1: 0012aca0 | 0x00008040 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     2: 0012b5a8 | 0x00010080 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     3: 0012bec8 | 0x000180C0 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     4: 0012c7f0 | 0x00020100 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     5: 0012d1f0 | 0x00028140 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     6: 0012db20 | 0x00030180 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     7: 00136448 | 0x000381C0 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     8: 0013ee00 | 0x00040200 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):     9: 0000de10 | 0x00048240 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    10: 0012b708 | 0x00050280 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    11: 00022c70 | 0x000582C0 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    12: 000234c0 | 0x00060300 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    13: 00115e38 | 0x00068340 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    14: 00117a80 | 0x00070380 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    15: 00118798 | 0x000783C0 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    16: 00042228 | 0x00080400 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    17: 0004bd48 | 0x00088440 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    18: 00055998 | 0x00090480 | 0x00008040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    19: 0005f5f0 | 0x000984C0 | 0x00003040 | A 
03-27 16:15:03.858: DEBUG/MemoryDealer(34):    20: 000712b0 | 0x0009B500 | 0x00008040 | A
03-27 16:15:03.867: ERROR/AudioTrack(34): AudioFlinger could not create track, status: -12
03-27 16:15:03.867: ERROR/AudioSink(34): Unable to create audio track
03-27 16:15:03.877: ERROR/MediaPlayer(1057): error (-19, 0)

enter code here

Answer 1

您需要释放()媒体播放器,否则资源不会被释放,您很快就会内存不足(因为下次再分配它们).所以,我认为你可以玩两次甚至三次......但不会多次释放资源

建议一旦不再使用MediaPlayer对象,立即调用release(),以便可以立即释放与MediaPlayer对象关联的内部播放器引擎使用的资源.资源可能包括单一资源(如硬件加速组件)和调用release()失败可能导致MediaPlayer对象的后续实例回退到软件实现或完全失败.看到这个链接