GMAndroid/app/src/main/res/drawable/location_map.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
	android:shape="rectangle">
	<corners
		android:radius="5dp"/>
	<stroke 
		android:width="5px"
		android:color="@color/black" />
	<solid 
	    android:color="@color/white" />
</shape>