What we must agree is, different platforms have different ways of understanding the assemblies. They execute and run the app in the same way. So Xamarin compiles the app in relevance to the platforms basing upon their nature and behavior of executing the assemblies. So that the app assembly fits to the platform acceptable format and run.
Compiling for iOS
iOS runs on ARM architecture. So the nature of iOS is, it understands the assembly language for ARM. It never allows the code to be generated dynamically during run time. So to respect the same, Xamarin did it exactly. It uses the Ahead Of Time (AOT) compilation process in order to generate ARM assemblies from the static code. This is a process to generate the pre-compiled code. Unlike the traditional on-demand execution approach, it compiles the code before hand. During the linking process, it links the .Net framework and the relevant assemblies only. It removes all others, which are no longer in use.
Xamarin Content page can contain a single view in it without any layout. Yes, that’s correct. But sometimes crazy thoughts strike to mind . Why should I believe unless I try that out?
You believe ??? But let me check before I agree with you
I am going to create a new Xamarin.Forms.Portable project using Visual Studio. Let me name this as “TryContentPage”. It will create 4 different projects out of which one is the Xamarin.Forms.Portable project and rest three of them are for platforms like iOS, Android and Windows Phone individually.
For now let’s ignore the other projects and concentrate on the Portable project only. To start with our experiment, let me add a XAML Form to that project and name it as “MyFirstPage” .
The cross platform app development with Xamarin Forms allows to create multiple platform development projects under a single Visual Studio solution. It is easy to build app for Android and Windows Phone in Windows with Xamarin using Visual Studio. But for the iOS development we need XCode, which can only be installed in a MAC
Pages are the basic components for application building. Pages when compiled to the iOS native app gets converted to UIViewController, Activities for Android and Pages for Windows Phone. Xamarin supports following type of pages.