I put together answers for almost 300 of the most frequently asked questions I received from readers into one place: the Swift 3 Knowledge Base. It answers basic and advanced questions, and provides lots of free code you can re-use however you please. If you hit problems, try searching there first.
The project files for Hacking with Swift are all available on GitHub, where you can view them, fork them, or download them: click here for the GitHub repo.
Master iOS 10 now!
My book Practical iOS 10 gives you seven complete coding projects that teach all the major new features in iOS 10 in a smart, practical way.