<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="line" >
    <!--线宽为dashWith，线之间空隙dashGap，dashGap=0dp时，是实线 -->
    <stroke android:width="1dp"
        android:color="@color/color_white"
        android:dashGap="5dp"
        android:dashWidth="5dp" />
    <!-- 虚线高度 -->
    <size android:height="1dp" />
</shape>