<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" android:duration="300"
    >
    <scale
        android:fromYScale="0.0"
        android:fromXScale="0.0"
        android:toXScale="1.0"
        android:toYScale="1.0"
        android:pivotX="50%"
        android:pivotY="50%"
        />

    <alpha android:fromAlpha="0.0"
        android:toAlpha="1.0"/>
</set>