<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
  android:oneshot="false">
  <item android:drawable="@drawable/start_icon1" android:duration="1000" />
  <item android:drawable="@drawable/start_icon2" android:duration="500" />
  <item android:drawable="@drawable/start_icon3" android:duration="600" />
</animation-list>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical" >
  <Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:text="开始" />
  <Button
    android:id="@+id/button2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
     android:layout_gravity="center"
    android:text="结束" />
  <ImageView
    android:id="@+id/image"
    android:background="@anim/start_animation"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>
</LinearLayout>

public class TestActivity extends Activity
{
AnimationDrawable anim;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.start_screen);
ImageView image = (ImageView) findViewById(R.id.image);
// image.setBackgroundResource(R.anim.start_animation);
anim = (AnimationDrawable) image.getBackground();
Button start = (Button) findViewById(R.id.button1);
Button stop = (Button) findViewById(R.id.button2);
start.setOnClickListener(new OnClickListener()
{
public void onClick(View arg0)
{
anim.start();
}
});
stop.setOnClickListener(new OnClickListener()
{
public void onClick(View arg0)
{
anim.stop();
}
});
}
}