<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">

    <scale
        android:duration="200"
        android:fromXScale="0.97"
        android:fromYScale="0.97"
        android:pivotX="50%"
        android:pivotY="50%"
        android:repeatCount="3"
        android:repeatMode="reverse"
        android:toXScale="1.0"
        android:toYScale="1.0" />

    <scale
        android:duration="200"
        android:fromXScale="0.97"
        android:fromYScale="0.97"
        android:pivotX="50%"
        android:pivotY="50%"
        android:repeatCount="3"
        android:repeatMode="reverse"
        android:toXScale="1.0"
        android:toYScale="1.0" />

</set>