Media Android

package app.test;
import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.widget.VideoView;
public class Test extends Activity {
  VideoView vv;
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    vv = (VideoView) this.findViewById(R.id.VideoView);
    Uri videoUri = Uri.parse(Environment.getExternalStorageDirectory().getPath()+ "/Test.m4v");
    // Uri videoUri = Uri.parse(Environment.getExternalStorageDirectory().getPath() + "/Test.m4v");
    vv.setVideoURI(videoUri);
    vv.start();
  }
}
//main.xml

    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >