创建小圆点

point_red.xml

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">


    <solid android:color="#f00" />

</shape>

point_gray.xml

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


    <solid android:color="#ccc" />
</shape>