Xcode 7 brings you two new concepts for Objective-C - Generics and Nullability! I'll cover Generics in another blogpost later. Oh, and nullability somewhat already came with Xcode 6.3, but…
If you, like myself, tend to be a part of projects where we’re delivering several builds of an iOS app, this blogpost might concern you. Up until now, Apple has…
Swift comes with a lot of really nice features that make it hard to go back to Objective-C. The main feature is safety, but that may be seen as just…
At the WWDC 2014, Apple unveiled Swift as a complete replacement for Objective-C, the recommended programming language for developing for the Mac OS X and iOS platforms since Apple bought…
I previously wrote a blog post titled Performing any Selector on the Main Thread detailing a convenience category on NSInvoication for easily creating invocation objects that could be invoked on…
Users and testers will find bugs you are sure you have already fixed. Sometimes they use the wrong version, sometimes your fix is not as good as you thought. Either…
There is a vibrant community of open source projects for iOS. You need a calendar UI components or a JSON parser? No problem, the projects are out there. Most code…
Apple provides many tools for implementing concurrency in your application. NSOperationQueue, GCD, or simply using performSelectorInBackground:withObject: that is available on each and every object, are just some examples. The tools…
Cocoa, and by inheritance Cocoa Touch on iOS makes a clear distinction between what is an exception, and what is an error in your application. This should be obvious since…
In Java you have for quite some time had the Future interface for encapsulating an asynchronous calculation. Cocoa has had the abstract NSOperation class to encapsulate asynchronous operations. NSOperation do…
Cocoa Touch added API for presenting a view controller in a popup bubble in iPhone OS 3.2, the responsible class is named UIPopoverController. One would guess that this new class…
Many UI frameworks, including AppKit for Mac OS X and UIKit for iPhone OS, require that all methods to UI components are sent on the main UI thread. Cocoa and…
Continuos Integration is the practice of integrating changes from many people as often as possible. Instead of merging changes once a month and spending time handling merge errors you try…
Test Driven Development, or TDD for short, is a simple software development practice where unit tests, small focused test cases, drive the development forward. This is most easily explained by…
The Cocoa and Cocoa Touch frameworks has a really nice function for acquiring a localized string NSLocalizedString(). Just pass in a key and you are done, for strings that are…