<?xml version="1.0" encoding="utf-8"?>
<animated-selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/checked" android:drawable="@drawable/ic_libary_filled_24dp" android:state_checked="true" />
    <item android:id="@+id/normal" android:drawable="@drawable/ic_library_outline_24dp" android:state_checked="false" />

    <transition
        android:fromId="@id/checked"
        android:toId="@id/normal"
        android:drawable="@drawable/anim_lib_filled_to_outline"/>

    <transition
        android:fromId="@id/normal"
        android:toId="@id/checked"
        android:drawable="@drawable/anim_lib_outline_to_filled"/>

</animated-selector>