<?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/btn_pressed" />
    <item android:state_focused="true" android:state_default="true" android:state_enabled="true"
        android:drawable="@drawable/btn_default" />
    <item android:state_focused="true" android:state_enabled="true"
        android:drawable="@drawable/btn_default" />
    <item android:state_enabled="true" android:state_default="true"
        android:drawable="@drawable/btn_default" />
    <item android:state_enabled="true" android:state_hovered="true"
        android:drawable="@drawable/btn_hover" />
    <item android:state_enabled="true"
        android:drawable="@drawable/btn_normal" />
    <item
        android:drawable="@drawable/btn_disabled" />
</selector>

