Bart Jacobs
Bart Jacobs runs Code Foundry, a mobile and web development company based in Belgium and writes about iOS development on his blog. Bart is also the mobile editor of Tuts+.
Tutorials
  • Code
    Swift from Scratch: Collections and TuplesPreview image@2x
    120 shares
    In the previous article, you learned about variables, constants, and some of the common data types, such as integers, floats, and strings. In this article, we zoom in on collections. Swift's standard library defines two collection types, arrays and dictionaries.Read More…
  • Code
    Swift from Scratch: Variables and ConstantsPreview image@2x
    140 shares
    In the first article of Swift from Scratch, you learned about Xcode playgrounds and wrote your first lines of Swift. In this article, we start learning the fundamentals of the Swift programming language by exploring variables and typing. We will also take a close look at constants and why you're encouraged to use them as much as possible.Read More…
  • Code
    Swift from Scratch: IntroductionPreview image@2x
    233 shares
    In this series, you'll learn everything you need to know about the Swift programming language to get started. You'll start with the very basics to get your feet wet and gradually learn about the more advanced aspects of this brand new programming language, ready to build iOS and OS X applications.Read More…
  • Code
    This Is What You Need to Know About WatchKitPreview image@2x
    49 shares
    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 number of resources, including Human Interface Guidelines for Apple Watch applications. In this article, I will tell you what you need to know about WatchKit and Apple Watch applications.Read More…
  • Code
    iOS 8: Core Data and Asynchronous FetchingPreviewimage@2x
    178 shares
    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, it's possible to asynchronously fetch data. In this tutorial, we'll take a closer look at how to implement asynchronous fetching and in what situations your application can benefit from this new API.Read More…
  • Code
    iOS 8: Core Data and Batch UpdatesPreviewimage@2x
    126 shares
    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 extensions or handoff, it continues to evolve year over year, and this year, with the release of iOS 8 and OS X Yosemite, is no different. Apple introduced a few new features to the Core Data framework, but the most notable are batch updates and asynchronous fetching. Developers have been asking for these features for many years and Apple finally found a way to integrate them into Core Data. In this tutorial, I will show you how batch updates work and what they mean for the Core Data framework.Read More…
  • Code
    Core Data from Scratch: ConcurrencyPreview image@2x
    138 shares
    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 would happen if you imported hundreds or thousands of records on the main thread during the first launch of your application? The consequences could be dramatic. For example, your application could be killed by Apple's watchdog for taking too long to launch. In this article, we take a look at the dangers when using Core Data on multiple threads and we explore several solutions to tackle the problem.Read More…
  • Code
    iOS 8: Beta Testing with TestFlightPreview image@2x
    144 shares
    TestFlight has been around for many years, solving a common problem, distributing iOS applications for beta testing. Earlier this year, Apple acquired Burstly, TestFlight's parent company. During this year's WWDC, Apple showed us what that acquisition meant for iOS developers. Good news, that's for sure. TestFlight has been integrated into iTunes Connect and is now available as a native iOS application on devices running iOS 8. If you plan to make use of Apple's beta distribution platform, then you'll quickly notice that a few things have changed. In this tutorial, you'll learn how easy it is to get started with TestFlight.Read More…
  • Code
    Core Data from Scratch: Subclassing NSManagedObjectPreview image@2x
    131 shares
    Earlier in this series, we created Done, a simple application to learn more about the NSFetchedResultsController class. In that project, we used key value coding (KVC) and key value observing (KVO) to create and update records. This works fine, but from the moment your project has any kind of complexity, you'll quickly run into issues. Subclassing NSManagedObject makes this much easier.Read More…
  • Code
    Setting Up Push Notifications on iOSPreview image@2x
    172 shares
    Apple originally introduced push notifications to enable applications to respond to events if the application isn't running in the foreground. However, the operating system and iOS devices have changed significantly during the past few years and applications don't need to rely solely on push notifications to perform tasks in the background. This doesn't mean that push notifications are no longer useful though. Let me show you how to set up push notifications on iOS in less than ten minutes.Read More…
  • Code
    10 Xcode Plugins for iOS DevelopmentPreview image@2x
    329 shares
    A proper plugin architecture can mean all the difference for an integrated development environment. Sublime Text and TextMate are great examples. Did you know that Xcode also supports plugins? It wouldn't surprise me if you don't, Apple hasn't put much effort into advertising that part of Xcode. In fact, there is very little documentation available to create plugins for Xcode. Fortunately, this hasn't stopped developers from creating plugins for Xcode.Read More…
  • Code
    Core Data from Scratch: MigrationsPreview image@2x
    109 shares
    In the previous articles of this series, we've encountered an annoying issue that we need to address. Whenever we modify the data model of a Core Data application, the persistent store becomes incompatible with the data model. The result is a crash on launch, rendering the application unusable, a serious problem if this happens to an application in the App Store. In this article, we aim to solve this issue by leveraging Core Data migrations.Read More…