android:videoView

网上代码大都类似：

private static ProgressDialog progressDialog;
public String video_url;
private  MediaController mediaController;
@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.videoalbum);

    progressDialog = ProgressDialog.show(ShowVideo.this, "", "Buffering video...", true);
    getWindow().setFormat(PixelFormat.TRANSLUCENT); 

    video_url = "http://www.letumobi.com/videouploads/cd0a4170-1fb2-4fba-b17c-b5d70b2cd2e7.mp4";

        try {
                final VideoView videoView =(VideoView)findViewById(R.id.video_viewId);
                mediaController = new MediaController(ShowVideo.this);
                mediaController.setAnchorView(videoView);
                // Set video link (mp4 format )
                Uri video = Uri.parse(video_url);
                videoView.setMediaController(mediaController);
                videoView.setVideoURI(video);

                videoView.setOnPreparedListener(new OnPreparedListener() {

                    public void onPrepared(MediaPlayer mp) {
                        progressDialog.dismiss();
                       videoView.start();
                    }
                });

             }catch(Exception e){
                  progressDialog.dismiss();
                 System.out.println("Video Play Error :"+e.getMessage());
             }

    }

但是在模拟器上跑只有声音没有图像，真机上则没有问题。

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