Bart Jacobs

In this short tutorial, I’d like to focus on Swift’s brand new syntax for availability checking. If you’ve done any amount of iOS or OS X development, then...

Does it surprise you that I'm dedicating a tutorial to a simple addition as the guard statement? I hope you'll better understand my excitement at the end of...

Even though storyboards have been around since iOS 5, many developers are reluctant to use them in their projects. A typical remark is that storyboards are...

Even if you've only dipped your toes into the world of iOS development, you almost certainly know about UIAlertView. The UIAlertView class has a simple...

The delegation pattern is among the most common patterns in iOS and OS X development. It is a simple pattern that is heavily used by Apple's frameworks and...

With the Apple Watch release date set for April, it is time to learn the ropes of Apple Watch development. In this tutorial, you will create your first...

In November, Apple did what it promised and released WatchKit to third-party developers. Not only did it release WatchKit, it provided developers with a...

In the previous article about iOS 8 and Core Data, we discussed batch updates. Batch updates aren't the only new API in town. As of iOS 8 and OS X Yosemite,...

Core Data has been around for many years on OS X and it didn't take Apple long to bring it to iOS. Even though the framework doesn't get as much attention as...

If you're developing a small or simple application, then you probably don't see the benefit of running Core Data operations in the background. However, what...

TestFlight has been around for many years, solving a common problem, distributing iOS applications for beta testing. Earlier this year, Apple acquired...

Earlier in this series, we created Done, a simple application to learn more about the NSFetchedResultsController class. In that project, we used key value...