<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <!-- 圆角的半径 -->
    <corners android:radius="15dp"/>
    <!-- 填充颜色 -->
    <solid android:color="#3a8fea"/>
</shape>