I developed an application for playing video.. the code for playing video is here..
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.videoview);
    Intent i = getIntent();
    Bundle extras = i.getExtras();
    filename = extras.getString("videofilename");
    mVideoView = (VideoView)findViewById(R.id.videoview);
    path=filename;
    if (path == "") {
        // Tell the user to provide a media file URL/path.
        Toast.makeText(
                ViewVideo.this,
                "Please edit VideoViewDemo Activity, and set path"
                        + " variable to your media file URL/path",
                Toast.LENGTH_LONG).show();
    } else {
          mVideoView.setVideoPath(path);
          mc = new MediaController(this);
          mVideoView.setMediaController(mc);
          mVideoView.requestFocus();
          mVideoView.bringToFront();
          mVideoView.start();
    }
}
Here is the xml code
 <?xml version="1.0" encoding="utf-8"?>
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
             android:layout_width="fill_parent"
           android:layout_height="fill_parent" >
   <VideoView android:id="@+id/videoview"
             android:layout_width="fill_parent"
             android:layout_alignParentRight="true"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
             android:layout_alignParentBottom="true"
             android:layout_height="fill_parent">
       </VideoView>
       </RelativeLayout>
The problem is that when I try to play a widescreen 16:9 video. It shows it on fullscreen and the characters appear squeezed. I need to play in widescreen format with mattes (two horizontal black bars above and below the video).. Any suggestions please ??