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

    <!-- 填充的颜色 -->
    <solid android:color="#ffffff" />
    <!-- 设置按钮的四个角为弧形 -->
    <corners
        android:bottomLeftRadius="13dp"
        android:bottomRightRadius="13dp"
        android:topLeftRadius="13dp"
        android:topRightRadius="13dp" >
    </corners>

</shape>