Android用Animation-list实现逐帧动画

先看看效果图

下面是2个动画的xml文件

animation1.xml

<?xml version="1.0" encoding="utf-8"?>

<!--

 根标签为animation-list，其中oneshot代表着是否只展示一遍，设置为false会不停的循环播放动画        

 根标签下，通过item标签对动画中的每一个图片进行声明        android:duration 表示展示所用的该图片的时间长度

-->

<animation-list xmlns:android="http://schemas.android.com/apk/res/android"

    android:oneshot="true" >



    <item

        android:drawable="@drawable/icon1"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon2"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon3"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon4"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon5"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon6"

        android:duration="250">

    </item>



</animation-list>

animation2.xml

<?xml version="1.0" encoding="utf-8"?>

<!--

 根标签为animation-list，其中oneshot代表着是否只展示一遍，设置为false会不停的循环播放动画        

 根标签下，通过item标签对动画中的每一个图片进行声明        android:duration 表示展示所用的该图片的时间长度

-->

<animation-list xmlns:android="http://schemas.android.com/apk/res/android"

    android:oneshot="true" >



    <item

        android:drawable="@drawable/icon6"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon5"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon4"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon3"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon2"

        android:duration="250">

    </item>

    <item

        android:drawable="@drawable/icon1"

        android:duration="250">

    </item>



</animation-list>

xml布局文件:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >



    <ImageView

        android:id="@+id/animationIV"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:padding="5px"

        android:src="@anim/animation1" 

        android:scaleType="center"/>



    <Button

        android:id="@+id/buttonA"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:padding="5px"

        android:onClick="onClick"

        android:text="顺序显示" />



    <Button

        android:id="@+id/buttonB"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:padding="5px"

        android:onClick="onClick"

        android:text="停止" />



    <Button

        android:id="@+id/buttonC"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:padding="5px"

        android:onClick="onClick"

        android:text="倒序显示" />



</LinearLayout>

java代码:

package com.example.animationdemo;



import android.app.Activity;

import android.graphics.drawable.AnimationDrawable;

import android.os.Bundle;

import android.view.Menu;

import android.view.View;

import android.view.Window;

import android.widget.ImageView;



public class MainActivity extends Activity {

    private ImageView animationIV;

    private AnimationDrawable animationDrawable;



    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.activity_main);

        animationIV = (ImageView) findViewById(R.id.animationIV);

    }



    public void onClick(View v) {

        switch (v.getId()) {

        case R.id.buttonA:

            start_animation(R.anim.animation1);

            break;

        case R.id.buttonB:

            stop_animation();

            break;

        case R.id.buttonC:

            start_animation(R.anim.animation2);

            break;

        default:

            break;

        }

    }

    private void start_animation(int id){

        animationIV.setImageResource(id);

        animationDrawable = (AnimationDrawable) animationIV

                .getDrawable();

        animationDrawable.start();

    }

    private void stop_animation(){

        animationDrawable.stop();

    }

}

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