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Development iOS

Mobile Cross Platform in C++

Will write C/C++ for foodPSPDFKit Blog: “PSPDFKit started in 2010 as an iOS-only project. Back then there was just one person working on it. 6 years later, we’re 28 people, have frameworks for iOS, Android and the Web, and our core framework even runs on OS X and Windows.”

Great piece on cross platform development using C++ and a tool from Dropbox called Djinni to help make things look native.

I’ve been toying with the idea of making RxCalc run on Android and the first thing I want to do is rewrite our Pharmacokinetics Math Library (PkMath) in C++, which ironically began life in C++ and was ported to Objective-C.

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Development Uncategorized

Native Development on Windows

Yesterday I asked on Twitter…

I got one serious answer and some fun poked at the question, which is fine, but I think it points to a real problem on the Windows Desktop. 

Has Microsoft given up on native applications at a time when native on Apple Platforms and Android have never been more popular?

On Apple Platforms we have clear, well defined, native development tools for creating serious desktop applications. Think of apps like Photoshop, or more modern takes on graphics like Sketch, Acorn, Pixelmator, or OmniGraffle. Most of these applications are written in Objective-C against Cocoa (Apple’s Framework for writing applications.) Sure, Photoshop is the old guy in the mix and is built on a custom framework written in C++ that communicates down to Cocoa (and possibly some Carbon API’s?) also worth noting, with the exception of Photoshop, not a single app mentioned above is cross platform (I’m not including Mac to iOS as cross platform, many of the API’s are the same and the act of going from one to the other is much easier than going to a completely different platform.)

All that brings me back to the question of developing native applications in the vein of Visio or Photoshop on the Windows Desktop. I’ve seen plenty of talk about creating Universal Apps, but those seem geared toward a lighter weight style of application, singular purpose apps focused on lightweight tasks, like Twitter or Facebooks clients, not hard core productivity applications that need to perform well and provide their best experience on the Desktop.

We still have Visual Studio, C++, and the Windows API, as a development platform but it feels somewhat abandoned. I know the folks working on the C++ compiler would probably argue against that statement because Microsoft is definitely investing in C++, but what about OS level API’s? That is the level that sort of feels abandoned. We have WinRT today, which seems like it might be part of the story for native desktop development, but do you mix and match that with the Windows API to build a great native application, do you use WinRT alone, or do you just continue to plug away with the Windows API?

It seems that apps built for the modern Metro look should use WinRT? Based on that it seems the old tried and try combination of C++ and the Windows API would still be the best choice for hard core desktop development.

But what about C# and XAML? Maybe those are a good choice for serious desktop development? I’m unclear on that subject. I’ve heard that the Visual Studio IDE was rewritten in C# for Visual Studion 2012, but I don’t know if that’s true or not. If someone reads this post and can point to MS Office, Visual studio, or Photoshop class applications written in C#/.NET I’d love to hear about them. Worth noting is the wonderful toolset by the folks at Xamarin, it makes C#/.NET app development truly cross platform.

Being a long time C++/Windows API guy I still gravitate toward that toolset. Hey, I have a lightweight class library I wrote in 1993-94 that still works today; it builds with Visual Studio 2015 and runs fine on Windows 10, but it could certainly use some refactoring given the state of modern C++. Think C++14.

I’ve been working on a cross platform project recently using Qt, which has me think about portable C++ for Mac, iOS, Windows, and Android. Given C++14 as a starting point for most OS level services; file I/O, threading and synchronization, etc, what would it take to build a modern C++ library that handled native user interface creation and interaction and didn’t feel too constraining on the platform? Remember, most cross platform tools come at a price. They’re always a little behind, they tend to be least common denominator, and can feel non-native. Qt, for instance, doesn’t use native controls on Windows (NOTE: this may not be true today. This was true around 2008, the last time I looked), I find that terribly annoying. I’m sure any Mac, iOS, or Android developer worth their salt would also find it annoying. 

A nice new C++ framework for building native OS level user interfaces using modern C++ as a base would be great to see. I really wonder how long it would take to build such a thing?