属性动画XML文件

<?xml version="1.0" encoding="utf-8"?>
<!--从右边进-->
<set
  xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:duration="500" android:fromXDelta="100.0%p" android:toXDelta="0.0" />
</set>

<?xml version="1.0" encoding="utf-8"?>
<!--从左边出-->
<set
  xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:duration="500" android:fromXDelta="0.0" android:toXDelta="-100.0%p" />
</set>

<?xml version="1.0" encoding="utf-8"?>
<!--从上边进-->
<set
  xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:duration="500" android:fromYDelta="100.0%p" android:toYDelta="0.0" />
</set>

<?xml version="1.0" encoding="utf-8"?>
<!--从下边出-->
<set
  xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:duration="500" android:fromYDelta="0.0"   android:toYDelta="100.0%p" />
</set>

<?xml version="1.0" encoding="utf-8"?>
<!-- 左上角扩大-->
  <scale   xmlns:android="http://schemas.android.com/apk/res/android"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"  
        android:fromXScale="0.001"   
        android:toXScale="1.0"   
        android:fromYScale="0.001"   
        android:toYScale="1.0"   
        android:pivotX="15%"  
        android:pivotY="25%"  
        android:duration="200" />  

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:fromAlpha="0.0" android:toAlpha="1.0"
    android:duration="300" />