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

    <item android:drawable="@mipmap/ic_follow_unselected" android:state_selected="false"></item>

    <item android:drawable="@mipmap/ic_follow_selected" android:state_selected="true"></item>
</selector>