Windows Phone and Android cross-platform?

Question

Android

During the "work" a question arose. Its essence lies in the fact that is it possible to port a WP application to Android, having source codes on Sharpe? How long will it take, how and what to do? Of course, I understand that from the outside this question looks extremely stupid, but ... Eh, on this topic for an hour of hard googling, no sensible advice could be found. And another question, is it possible to initially make development cross-platform? (WP + Android)

Answer 1

You can, Xamarin + MvvmCross or Xamarin + Xamarin.Forms.
In the first case, the core of the application with services and view models is taken out as a common project. Platform-specific projects store UI and platform-specific services.
In the second case, the UI is also common.