xuxiuxi
2017-05-04 15d0c49e85159b9e27870aff5280c0cd95b103c4
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<?xml version="1.0" encoding="utf-8"?>
<alpha
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromAlpha="0.0"
    android:toAlpha="1.0"
    android:duration="300"/>