<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/ic_toggle_off" android:state_checked="false">
        <shape>
            <size android:width="36dp" android:height="36dp" />
        </shape>
    </item>
    <item android:drawable="@drawable/ic_toggle_on" android:state_checked="true">
        <shape>
            <size android:width="36dp" android:height="36dp" />
        </shape>
    </item>
</selector>