Android中的AnimationDrawable的使用

<?xml version="1.0" encoding="utf-8"?>
 2 <animation-list xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:oneshot="false" >
 4 
 5     <item
 6         android:drawable="@drawable/on_001"
 7         android:duration="100"/>
 8 
 9     <item
10         android:drawable="@drawable/on_002"
11         android:duration="100"/>
12 
13     <item
14         android:drawable="@drawable/on_003"
15         android:duration="100"/>
16 
17     <item
18         android:drawable="@drawable/on_004"
19         android:duration="100"/>
20 
21     <item
22         android:drawable="@drawable/on_005"
23         android:duration="100"/>
24 
25     <item
26         android:drawable="@drawable/on_006"
27         android:duration="100"/>
28 </animation-list>

AnimationDrawable ad = (AnimationDrawable) getResources().getDrawable(
2                 R.drawable.bootanimation);
3         mView.setBackgroundDrawable(ad);
4         ad.start();