<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:interpolator="@android:anim/decelerate_interpolator">

    <scale
        android:duration="1000"
        android:fromXScale="1"
        android:fromYScale="1"
        android:pivotX="50%"
        android:pivotY="50%"
        android:repeatCount="infinite"
        android:repeatMode="restart"
        android:toXScale="1.8"
        android:toYScale="1.8"/>

    <set android:startOffset="200">
        <alpha
            android:duration="800"
            android:fromAlpha="1.0"
            android:repeatCount="infinite"
            android:repeatMode="restart"
            android:toAlpha="0.0"/>
    </set>
</set>