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

    <!-- 高度40 -->
    <size android:height="30dp"/>
    <!-- 圆角弧度 20 -->
    <corners android:radius="15dp"/>
    <!-- 变化率 -->
    <gradient
        android:endColor="#33da33"
        android:startColor="#33da33" />



</shape>