android ListView增加Animation效果

anim文件夹下建立anim_layout.xml和alpha.xml

-----------------------android:animationOrder 的取值有normal
0 默认reverse 1 倒序random 2 随机-----------------------

anim_layout.xml

[html] view
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1. <?xml version="1.0" encoding="utf-8"?>  
2. <layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"  
3.   
4.  android:delay="0.5"  
5.  android:animationOrder="random"  
6.  android:animation="@anim/alpha"  
7.  />  

alpha.xml

[html] view
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1. <?xml version="1.0" encoding="utf-8"?>  
2. <set xmlns:android="http://schemas.android.com/apk/res/android"  
3.         android:interpolator="@android:anim/accelerate_interpolator">  
4.           
5.     <alpha  
6.         android:fromAlpha="0.0"  
7.         android:toAlpha="1.0"  
8.         android:duration="500" />  
9.       
10. </set>  

布局文件里的ListView增加一个layoutAnimation属性

[java] view
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1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     android:layout_width="fill_parent"  
4.     android:layout_height="fill_parent"  
5.     android:orientation="vertical" >  
6.   
7.     <ListView   
8.         android:id="@id/android:list"  
9.         android:layout_width="fill_parent"  
10.         android:layout_height="fill_parent"  
11.         android:drawSelectorOnTop="false"  
12.         android:layoutAnimation="@anim/anim_layout"  
13.         ></ListView>  
14.       
15.     <TextView  
16.         android:id="@id/android:empty"  
17.         android:layout_width="fill_parent"  
18.         android:layout_height="fill_parent"  
19.         android:text="No data" />  
20.       
21. </LinearLayout>