<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
   <stroke  android:width="1dp"  android:color="@color/grayc4" /> <!-- 边框颜色，边框大小-->
    <solid   android:color="@color/white" /> <!-- 填充的颜色：这里设置背景 -->
    <corners android:radius="5dip" /><!-- android:radius 弧形的半径 -->

</shape>