rotate //旋转 alpha//淡入淡出 scale//缩放 translate//移动
<?xml versioin="1.0" encoding="utf-8" ?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator">
<rotate
android:fromDegrees="0"
android:toDegrees="360"
android:pivotX="50%"
android:pivotY="50%"
android:startOffset="500"
android:duration="1000"/>
<scale
android:fromXScale="1.0"
android:toXScale="0.0"
android:fromYScale="1.0"
android:toYScale="0.0"
android:pivotX="50%"
android:pivotY="50%"
android:startOffset="500"
android:duration="500"/>
<alpha
android:fromAlpha="1.0"
android:toAlpha="0.0"
android:startOffset="500"
android:duration="500"/>
</set>
Andorid - 视图动画效果：目标在旋转360“的同时，逐渐收缩并淡出
原文：http://www.cnblogs.com/brantliu/p/4866166.html