Gingerbread MR1  |  2.3.7_r1
Html程序  |  8行  |  248 B 

<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromAlpha="1.0"
    android:toAlpha="0.0"
    android:duration="500"
    android:fillAfter="true"
    android:interpolator="@android:anim/decelerate_interpolator"
    />