<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval" >
    <!-- 填充颜色 -->
    <solid android:color="@android:color/holo_red_light" />
    <size
        android:width="16dp"
        android:height="16dp" />
</shape>