<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <corners android:radius="16dp" /> <!-- 圆角半径 -->
            <solid android:color="#FFFFFF" /> <!-- 背景颜色 -->
        </shape>
    </item>
</selector>
