I have found the solution for this problem. 1) There is no need for Android.Support.V7.Widget.Toolbar toolbar = FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);SetSupportAc… (View Post)
@EddieM My main problem was that Android.Support.V7.Widget.Toolbar toolbar = FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar); was always null wherever I was trying to acces… (View Post)