DOWNLOAD THE APP "MOBILE ADS EXAMPLE NEW" WITH BETTER FEATURES!
This app shows all common typs of mobile ads – such as the BANNER AD, the INTERSTITIAL AD, the REWARDED VIDEO AD it shows how to implement an AD-LISTENER and an AD-WRAPPER. All of this together with the SOURCE CODE, the neccessary NUGET PACKAGES DETAILED EXPLANATIONS and EXAMPLES in C# for XAMARIN.
You may as well buy the whole solution as a project inside this app for only 4.99$.