app/src/main/res/anim/exit.xml

<?xml version="1.0" encoding="utf-8"?>
<set>
    <translate xmlns:android="http://schemas.android.com/apk/res/android"
               android:fromXDelta="0"
               android:toXDelta="-100%"
               android:interpolator="@android:anim/accelerate_decelerate_interpolator"
               android:duration="250"/>
</set>