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

    <item android:state_selected="false" android:drawable="@drawable/ic_unfold_more_horizontal_24dp"/>
    <item android:state_selected="true" android:drawable="@drawable/ic_unfold_less_horizontal_24dp"/>
</selector>