『ANDROID』使用AnimationDrawable简单的多图片切换

ViewGroup viewGroup = ActivityUtils.getRootViewGroup(this);
viewGroup.setBackgroundResource(R.drawable.item_transaction);
m_BackgroundDrawable = (AnimationDrawable)viewGroup.getBackground();

<?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/welcome_1"
android:duration="1000"/>
<item
android:drawable="@drawable/welcome_2"
android:duration="1000"/>
<item
android:drawable="@drawable/welcome_3"
android:duration="1000"/>

</animation-list>