shape_circle_stroke1px_cccccc.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <corners android:radius="100dp"></corners>
    <solid android:color="@color/white_half" />
    <stroke
        android:color="#cccccc"
        android:width="1px"></stroke>
</shape>