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

    <!-- 背景图 -->
    <item
        android:id="@android:id/background"
        android:drawable="@drawable/guibei_main_upgrade_bg_icon"/>
    
    <!-- 进度度 -->
    <item
        android:id="@android:id/progress"
        android:drawable="@drawable/guibei_main_upgrade_progress_bg_icon"/>

</layer-list>