方法位置转移

dupengyue

2017-07-20 03c204733b9b2017d9d3b8a31b67a7116d6b0473

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