android - 如何将 MediaPlayer 用于 fragment 中的 SurfaceView

Question

因为我希望能够传递播放视频的 MediaPlayer，所以我想在播放视频的 fragment 中使用 SurfaceView 而不是 VideoView。

我看了一个earlier question关于如何将 MediaPlayer 附加到 SurfaceView。问题的答案告诉我创建两个函数:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_player);

    getWindow().setFormat(PixelFormat.UNKNOWN);
    mPreview = (SurfaceView)findViewById(R.id.surfaceView);
    holder = mPreview.getHolder();
    holder.setFixedSize(800, 480);
    holder.addCallback(this);
    holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    mp = new MediaPlayer();
}


@Override
public void surfaceCreated(SurfaceHolder holder) {
    // TODO Auto-generated method stub
    mp.setDisplay(holder);
    play();
}

不幸的是，我无法通过 Fragment 覆盖 surfaceCreated，因为 Fragment 没有该方法。我仍然可以将 MediaPlayer 附加到 Fragment 中的 SurfaceView 吗？

Answer 1

使用回调监听器将 Surface View 从 Fragment 传递到父 Activity，然后将 Media Player 从 Activity 附加到 Surface View，然后更新 Fragment Surface View，演示代码，IN Fragment

      SurfaceView mPreview ;

  private MyListener mylistener=null;
  public interface MyListener extends EventListener{
     void onPassSurface(SurfaceView surfaceview);
    }

   public void setListener (MyListener listener)
     {
        mylistener = listener;
      }

     public void updateSurfaceView(SurfaceView surfaceview)
      {
                  mPreview=surfaceview;

                 }

     mPreview =  (SurfaceView)findViewById(R.id.surfaceView);

     mylistener.onPassSurface(mPreview);

Activity 中

    MyFragment  myfragment=new MyFragmment();
    myfragment.setListener(new MyFragment.MyListener)
     {
       @Override
       void onPassSurface(SurfaceView mPreview)
         {
            //attach Media Player Here or Write Method to attach
            //media player with Surface View and Call from Here

            //after attaching media player call this method
              myfragment.updateSurfaceView(mPreview);
            }