<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:oneshot="false"> 
 <item android:drawable="@mipmap/open" android:duration="400"></item> 
 <item android:drawable="@mipmap/open3" android:duration="400"></item> 
 <item android:drawable="@mipmap/open2" android:duration="400"></item>
</animation-list>

<ImageView 
 android:padding="@dimen/dimen_5" 
 android:id="@+id/iv_open" 
 android:layout_centerInParent="true" 
 android:layout_width="@dimen/dimen_100" 
 android:layout_height="@dimen/dimen_100" 
android:background="@drawable/open_red_animation_drawable" />

//ivOpen指的是需要播放动画的ImageView控件
AnimationDrawable animationDrawable = (AnimationDrawable)ivOpen.getBackground();
animationDrawable.start();//启动动画