--- /dev/null
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+ android:ordering="sequentially">
+ <objectAnimator
+ android:duration="500"
+ android:propertyName="alpha"
+ android:repeatCount="3"
+ android:repeatMode="reverse"
+ android:valueFrom="1f"
+ android:valueTo="0f" />
+</set>
\ No newline at end of file