<?xml version="1.0" encoding="utf-8"?>
<!-- 单选类型的对话框的单选Drawable -->
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/xui_icon_checkbox_checked" android:state_selected="true"/>
    <item android:drawable="@drawable/xui_icon_checkbox_checked" android:state_checked="true"/>
    <item android:drawable="@drawable/xui_icon_checkbox_normal"/>

</selector>