import android.content.Context;
import android.graphics.drawable.AnimationDrawable;
import android.view.KeyEvent;
import android.view.View;
import android.widget.ImageView;

/**
 * @version 2012-8-21 下午03:01:24
 **/
public class GameView extends View {
    // 定义AnimationDrawable
    private AnimationDrawable mAnimationDrawable = null;
    Context context;

    public GameView(Context context) {
        super(context);
        this.context = context;
        // 定义一个动画布局文件
        ImageView img = new ImageView(context);
        // 装载动画布局文件
        img.setBackgroundResource(R.anim.frame);
        // 构建动画
        mAnimationDrawable = (AnimationDrawable) img.getBackground();
        // 是否循环
        // mAnimationDrawable.setOneShot(false);
        // 设置该类显示的动画
        this.setBackgroundDrawable(mAnimationDrawable);
        setFocusable(true);
    }

    @Override
    public boolean onKeyDown(int keyCode,KeyEvent event) {
        if(keyCode == KeyEvent.KEYCODE_DPAD_UP) {
            // 开始播放动画
            mAnimationDrawable.start();
        }
        return super.onKeyDown(keyCode,event);
    }
}

<?xml version="1.0" encoding="utf-8"?>
<animation-list
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:oneshot="true"><!-- android:oneshot是否循环 false循环 true 不循环 -->
	<item
		android:drawable="@drawable/a1"
		android:duration="500" />
	<item
		android:drawable="@drawable/a2"
		android:duration="500" />
	<item
		android:drawable="@drawable/a3"
		android:duration="500" />
	<item
		android:drawable="@drawable/a4"
		android:duration="500" />
	<item
		android:drawable="@drawable/a5"
		android:duration="500" />
	<item
		android:drawable="@drawable/a6"
		android:duration="500" />
	<item
		android:drawable="@drawable/a7"
		android:duration="500" />
	<item
		android:drawable="@drawable/a8"
		android:duration="500" />
	<item
		android:drawable="@drawable/a9"
		android:duration="500" />
	<item
		android:drawable="@drawable/a10"
		android:duration="500" />
	<item
		android:drawable="@drawable/a11"
		android:duration="500" />
	<item
		android:drawable="@drawable/a12"
		android:duration="500" />
	<item
		android:drawable="@drawable/a13"
		android:duration="500" />
	<item
		android:drawable="@drawable/a14"
		android:duration="500" />
	<item
		android:drawable="@drawable/a15"
		android:duration="500" />
</animation-list>