<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/m4399_ope_btn_radius4_shape_pressed" android:state_pressed="true" />

    <item android:drawable="@drawable/m4399_ope_btn_radius4_shape_normal" android:state_enabled="true" />

    <item android:drawable="@drawable/m4399_ope_btn_radius4_shape_enable_normal" android:state_enabled="false"/>
</selector>