title: How to create simple Dialog boxes in Xamarin iOS?
body: <p>Just started dealing with Xamarin iOS (porting monogame app from WP8.1 to iOS) and can't find Message Box, Query BOx, Query text Box, Progress / Wait controls. 
  In windows/wp I use XAML page, but it looks like there is not XAML support in Xamarin.iOS.</p>
  
  <p>I saw how to do this using page from xamarin.forms, but I can't believe that such simple things are not implemeneted simply, without storyboards UIView controllers, etc. Besides I can't understand where are pages in my app - it has only Program.cs and Game1.cs files.</p>