AndyDentFree / LayeringPCL

Investigating layering PCL to call native code especially Xamarin mobile.

LayeringPCL

Investigating layering PCL to call native code especially Xamarin mobile.

Initial context is working on the Realm Xamarin Product support for PCL.

I am a multi-platform developer who's shipped a couple of native IOS projects (Swift and Objective-C) but mostly comes from a desktop background with over 20 years of C++.

That perspective may affect my understanding, choice of idioms and anecdotes. I will try to avoid too many references to MFC.

ThreeLayerXF

Created in VS2015 using Xamarin Forms Portable template

Diving into giving PCL layering a full workout.

• ThreeLayerXF UI Layer of common Xamarin Forms UI
• PurePCLViewModel Sandwich filling invoked by ThreeLayerXF
• NativeCallingBottom layer which will invoke native code from PCL (somehow)

PurePCLViewModel and NativeCallingBottom both created using the VS2015 template Class Library (Portable) with default targets to match the Xamarin Forms PCL default:

• .Net Framework 4.5
• Windows 8
• Windows Phone Silverlight 8
• Windows Phone 8.1
• Xamarin.Android
• Xamarin.iOS
• Xamarin.iOS (Classic)