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

    <!-- 连框颜色值 -->
    <item>
        <shape>
            <solid android:color="#DDDDDD" />

            <corners
                android:bottomLeftRadius="25dp"
                android:bottomRightRadius="25dp"
                android:topLeftRadius="25dp"
                android:topRightRadius="25dp" >
            </corners>
        </shape>
    </item>
    <!-- 主体背景颜色值 -->
    <item
        android:bottom="1dp"
        android:left="1dp"
        android:right="1dp"
        android:top="1dp">
        <shape>
            <solid android:color="#ffffff" />
            <corners
                android:bottomLeftRadius="25dp"
                android:bottomRightRadius="25dp"
                android:topLeftRadius="25dp"
                android:topRightRadius="25dp" />
        </shape>
    </item>
</layer-list>