

On a Mac, install Xcode and Visual Studio for Mac.On a Windows machine, install Visual Studio 2017.Then select PCL(Portable Class Library).Goto File > New Project > Visual C# > Cross Platform > Black App.


With a C#-shared codebase, developers can use Xamarin tools to write native android, iOS, and Windows apps with native user interfaces and share code across multiple platforms, including Windows and macOS. Xamarin is a Microsoft-owned San Francisco-based software company founded in May 2011 by the engineers that created Mono, Xamarin.Android (formerly Mono for Android) and Xamarin.iOS (formerly MonoTouch), which are cross-platform implementations of the Common Language Infrastructure (CLI) and Common Language Specifications (often called Microsoft.
