android shap画圆（空心圆、实心圆）

实心圆：

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

    <solid android:color="@color/colorWhite" />
    <stroke
        android:width="1dp"
        android:color="@color/colorWhite" />
    <size
        android:width="10dp"
        android:height="10dp" />
</shape>

　　

空心圆：

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

    <!--<solid android:color="@color/red"/>-->
    <stroke
        android:width="1dp"
        android:color="@color/colorWhite" />
    <size
        android:width="10dp"
        android:height="10dp" />
</shape>

　　

带白边的红圆

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

<shape

    xmlns:android= "http://schemas.android.com/apk/res/android"

    android:shape= "oval"

    android:useLevel= "false" >

    <solid android:color= "@color/red" />

    <stroke

        android:width= "1dp"

        android:color= "@color/white" />

    <size android:width= "20dp"

          android:height= "20dp" />

</shape>