iOS application architecture: MVVM, behaviors, singletons, subclassing

Re:iOS application architecture: MVVM, behaviors, singletons... by taspeotis on Monday June 09, 2014 @07:33PM (#7871122)

If you're enamoured with MVVM and know C# you might consider trying out Xamarin + MvvmCross [1]. I'm using it on a few projects and the code shared across platforms is (ballpark) 70-90% depending on the size of the project.

Xamarin's come out with Xamarin.Forms which looks like it could supersede MvvmCross but I gave it a shot and it's pretty immature right now. Plus its dependency injection leaves a little to be desired [2].

[1] http://www.codeproject.com/Articles/566270/

[2] Out-of-the-box it appears to have a global service locator and no constructor injection.

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Re:iOS application architecture: MVVM, behaviors, singletons... by mstromb on Monday June 09, 2014 @09:21PM (#7871441)

I prefer ReactiveUI: https://github.com/reactiveui/ReactiveUI (though you can use it together with MvvmCross)

It might be an unfair comparison as MvX is a much older project but it felt more like something cobbled together over time than something really thought out. I also really like the reactive approach - your view model describes the relationships between its properties as they change rather than have a morass of interlinked event handlers.

Paul Betts is pretty active within the portable-C# community, with multiple active projects: https://github.com/paulcbetts and has a pretty good blog, where at the moment he's going back through the RxUI docs: http://log.paulbetts.org/

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Re:iOS application architecture: MVVM, behaviors, singletons... by tobinharris on Tuesday June 10, 2014 @02:23PM (#7874394)

Do I need still need to spend $17,091 a year to equip 3 developers with reasonably unrestricted Xamarin on 3 iOS, Android and Windows Phone? Or $8,991 if I don't care for hot fixes.

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Re:iOS application architecture: MVVM, behaviors, singletons... by taspeotis on Tuesday June 10, 2014 @10:03PM (#7876256)

Xamarin doesn't cost anything for Windows Phone. Xamarin Indie is reasonably unrestricted, but let's just go with Business for now:

    Order Summary
    Xamarin.Android Business    999    × 3    2997.00
    Xamarin.iOS Business        999    × 3    2997.00
                                            $5,994.00
    Multiple Licenses                  10%    –599.40
                                               Total:
                                            $5,394.60

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