erpsuiteandroid/RA Image/app/src/main/res/drawable/switch_thumb.xml

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

    <!--<item android:state_pressed="true" android:drawable="@drawable/thumb_on"/>-->
    <item android:state_checked="true" android:drawable="@drawable/thumb_on"/>

    <item android:drawable="@drawable/thumb_off"/>

</selector>