I am using the 1st release of the ArcGIS Runtime SDK for .Net - Xamarin.Forms (nuget package here).
One of the requirements is to display a compass that indicates the north. I haven't found any build-in feature for the moment. Is someone can point me out how to implement this functionality ?
So after few research, I've implemented a custom solution:
Find a compass icon that can rotate (see this article to add image resource to Xamarin.Form)
Add the image on top of the map:
Rotate the image when the view point changed:
Complete solution here.