Swift, on Windows?

Brent Simmons: “What if — and it’s a big if — Microsoft made Swift a peer with C# and provided some good app frameworks?”

When I published What Ifs and Why Nots I hadn’t read Brent’s piece. He’s actually asking the same questions. What would it take to pull Mac developers to Windows? It would take more than Swift, I’m pretty certain. In a Microsoft .Net world where would Swift fit? Would Microsoft just create a version of Swift that works with the .Net garbage collector, or would it be a compiled language? I’d bet on the former given Microsoft’s all-in on .Net and garbage collection.

The bigger questions is Frameworks. Let’s just say Microsoft does a .Net version of Swift. To create a Windows application you’d have to embrace WinRT. You could use your knowledge of Swift, but you’d have to learn a completely new way of writing applications.

Think about all the things Foundation does for you. If you were to move to Windows and Swift on Windows was all .Net based you couldn’t even reuse your non-UI based classes. You could, of course, reimplement your shared classes to use .Net stuff and maintain your interfaces, but you’d have to do a considerable amount of coding to fit on the platform.

Maybe you don’t make Swift a .Net language. Maybe you bring Foundation over to Windows using the Windows API, which is very different from a development standpoint, and not the preferred way to code new apps on Windows. This could also work. You would have a compiled Swift that could natively link to Foundation, which in turn uses Windows API’s to do any platform level stuff. You could then reuse some of your code investment, like those shared non-UI classes and work on creation of a native Windows UI for your application.

Also, of note. Microsoft already has a great set of Frameworks to use, just use them. It would be like coming to the Mac from Windows and saying “Apple needs to provide some good app frameworks.” They already do, you just need to learn to use them to make the best experience for your users. That is the biggest hurdle for any developer.

Learning the new frameworks and a new OS can be quite daunting. When I came to iOS from doing Windows and Linux based UI’s (using Qt mind) I fought with Interface Builder and decided I had to do everything in code because I couldn’t figure it out. Later I made my peace with it. I still think Visual Studio is the better development environment, but Xcode is a very close second, maybe tied, at this point.

I’m kind of a knucklehead. I spent almost 20-years doing native Windows API based applications so I was very comfortable with Visual Studio and that entire ecosystem. If I can learn to write iOS Applications and embrace the tools, then anyone doing Mac or iOS apps could learn to do Windows based stuff today. Just embrace it, don’t try to force your tools into the platform. Now, if you have some code that can easily come over, you might as well use it, but we all know the best apps feel right on the platform. Embrace the platform.

The new Surface Studio is the first bit of Windows based hardware that has excited me this much about the platform in a very long time. I’d love to work on a new design app for Windows, if I could. Maybe even one that works on both platforms; Windows and Mac. Why not? I mean besides time and money, what else does one need to do something so ambitious?