app/src/main/res/drawable/radio_button_right_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/radio_button_right_checked" android:state_checked="true"/>
<item android:drawable="@drawable/radio_button_right_unchecked" android:state_checked="false"/>
</selector>