좌우 진동 애니메이션

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate xmlns:android="http://schemas.android.com/apk/res/android"
	android:duration="100"
	android:fromXDelta="0"
	android:toXDelta="20"
	android:repeatCount="3"
	android:repeatMode="revers>
</translate>
</set>

출처: https://namget.tistory.com/entry/안드로이드-지문인식fingerprint-사용하기-api23도-가능 [남갯,YTS의 개발,일상블로그]