如何对片段中的SurfaceView使用MediaPlayer [英] How do use a MediaPlayer to a SurfaceView in a Fragment

问题描述

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片段中使用SurfaceView而不是VideoView.

Because I want to be able to pass the MediaPlayer that plays the video around, I want to use a SurfaceView instead of a VideoView inside my fragment that plays the video.

我查看了之前的问题有关如何将MediaPlayer附加到SurfaceView.这个问题的答案告诉我创建两个函数:

I looked at an earlier question about how to attach the MediaPlayer to the SurfaceView. The answer to the question tells me to create two functions:

@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，我无法覆盖通过Fragment创建的surfaceCreate，因为Fragment没有该方法.我还能在片段中将MediaPlayer附加到SurfaceView吗?

Unfortunately, I can't overwrite surfaceCreated via a Fragment because a Fragment doesn't have the method. Can I still attach MediaPlayer to a SurfaceView in a Fragment?

推荐答案

使用回调侦听器将Surface视图从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，在Fragment

Pass Surface View From Fragment to parent Activity using Callback Listener and then attach Media Player from activity to surface View then update Fragment Surface View, demo code , 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);

活动中

    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);
            }

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