public class Activity01 extends Activity
{
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);

  setContentView(R.layout.main);

  final VideoView videoView = (VideoView) findViewById(R.id.VideoView01);

  Button PauseButton = (Button) this.findViewById(R.id.PauseButton);
  Button LoadButton = (Button) this.findViewById(R.id.LoadButton);
  Button PlayButton = (Button) this.findViewById(R.id.PlayButton);

  // load
  LoadButton.setOnClickListener(new OnClickListener() {
   public void onClick(View arg0)
   {
//    videoView.setVideoPath("/sdcard/test.mp4");
    videoView.setVideoPath("android.resource://com.homer/"+R.raw.china);
    videoView.setMediaController(new MediaController(Activity01.this));
    videoView.requestFocus();
   }
  });

  // play
  PlayButton.setOnClickListener(new OnClickListener() {
   public void onClick(View arg0)
   {
    videoView.start();
   }
  });

  // pause
  PauseButton.setOnClickListener(new OnClickListener() {
   public void onClick(View arg0)
   {
    videoView.pause();
   }
  });
 }
}

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <VideoView
        android:id="@+id/VideoView01"
        android:layout_width="320px"
        android:layout_height="240px" />

    <Button
        android:id="@+id/LoadButton"
        android:layout_width="80px"
        android:layout_height="wrap_content"
        android:layout_x="30px"
        android:layout_y="300px"
        android:text="装载" />

    <Button
        android:id="@+id/PlayButton"
        android:layout_width="80px"
        android:layout_height="wrap_content"
        android:layout_x="120px"
        android:layout_y="300px"
        android:text="播放" />

    <Button
        android:id="@+id/PauseButton"
        android:layout_width="80px"
        android:layout_height="wrap_content"
        android:layout_x="210px"
        android:layout_y="300px"
        android:text="暂停" />

</AbsoluteLayout>