packages/SystemUI/res/drawable/ic_hotspot_transient_animation.xml

<?xml version="1.0" encoding="utf-8"?>
<animated-vector
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/ic_hotspot_transient" >
    <target
        android:name="circle_3"
        android:animation="@anim/ic_hotspot_transient_circle_3_animation" />
    <target
        android:name="circle_2"
        android:animation="@anim/ic_hotspot_transient_circle_2_animation" />
    <target
        android:name="circle_1"
        android:animation="@anim/ic_hotspot_transient_circle_1_animation" />
</animated-vector>