The surface has been released错误原因(亲测有效)
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2022-03-02 09:40:54
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从网上看了很多资料,发现好多都是错误的,所以今天特意更新这个问题的原因,
在播放mediaPlayer.start()时SurfaceHolder没有来的及调用onCreate()方法创建view,导致holder没有成功加载,因为mediaplayer是在SurfaceHolder上面播放的,所以才抛出播放异常。贴出正确代码
mSurfaceView = (SurfaceView) findViewById(R.id.surface_view);
AssetManager assetManager = getAssets();
try {
mDescriptor = assetManager.openFd("test1.mp4");
} catch (IOException e) {
e.printStackTrace();
}
mediaPlayer = new MediaPlayer();
mSurfaceView.getHolder().addCallback(new SurfaceHolder.Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.d(TAG, "surfaceCreated=" + System.currentTimeMillis());
try {
mediaPlayer.setDataSource(mDescriptor.getFileDescriptor(), mDescriptor.getStartOffset(), mDescriptor.getLength());
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);//设置播放声音类型
mediaPlayer.prepare();
mediaPlayer.setDisplay(mSurfaceView.getHolder());
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Log.d(TAG, "surfaceChanged=" + System.currentTimeMillis());
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.d(TAG, "surfaceDestroyed=" + System.currentTimeMillis());
}
});
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
Log.d(TAG, "onPrepared=" + System.currentTimeMillis());
mediaPlayer.start();
}
});
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
Log.d(TAG, " times onCompletion=" + System.currentTimeMillis());
mediaPlayer.release();
}
});
}
medialplayer播放的生命周期:
surfaceCreated—-SurfaceHolder被创建,只要在SurfaceHolder被创建的时候做设置就可以避免The surface has been released问题。
surfaceChanged——SurfaceHolder发生改变
onPrepared—-mediaPlayer准备ok
onCompletion—–mediaPlayer播放完成
surfaceDestroyed—–SurfaceHolder被销毁。
有什么问题请各位指出,谢谢!
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