This sample demonstrates how to show a map scale in the basemap
The sample provides a map scale in the bottom screen, you can see the map scale using the map pinch gesture feature.
A UIView and UILabel is added to the UIViewController in the UIStoryboard to show the map scale. After the pinch gesture is added to the ViewDidLoad. When called from the pinch gesture mapPinchedByTouch metod, the scale value of the base map is set on the scale label.