觉得画来玩玩，比较有趣，记录一下。

1格子。

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item >
        <shape>
            <solid android:color="@color/white"/>
        </shape>
    </item>

    <item android:bottom="-600dp"
        android:right="-600dp"
        android:left="-600dp">
        <shape>
            <!-- 破折线的宽度为dashWith，破折线之间的空隙的宽度为dashGap，当dashGap=0dp时，为实线-->
            <stroke
                android:width="600dp"
                android:color="@color/black"
                android:dashWidth="3dp"
                android:dashGap="3dp" />
        </shape>
    </item>

    <item android:bottom="-600dp"
        android:right="-600dp"
        android:top="-600dp">
        <shape>
            <stroke
                android:width="600dp"
                android:color="@color/black"
                android:dashWidth="3dp"
                android:dashGap="3dp" />
        </shape>
    </item>
</layer-list>

2.圆形

 

 

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="oval">
    <stroke android:width="250dp"
        android:color="@color/white"
        android:dashWidth="2dp"
        android:dashGap="2dp"/>

</shape>