A developer creates an Objective-C/C++ wrapper for Leap Motion SDK to enable hands-free mouse control on Mac OSX using finger tracking and ray tracing.
A brief tutorial on using Apple's Social.framework in iOS 6 to post content to Facebook, Twitter, and Sina Weibo with minimal code.
A developer's critical rant about the complexity and frustrations of implementing OAuth for a Twitter API client, arguing it's overly complicated.
Guide to correctly integrating NSApplicationDelegate with NSDocument in a macOS 10.8 document-based app using Xcode and ARC.
A technical guide on adding block-based callback support to iOS UIMenuItem for cleaner, more flexible menu handling in Objective-C.
A guide to enabling Objective-C subscripting in Xcode 4.4 for iOS 4.3+ using a compatibility shim from ARCLite.
Explains why OCUnit test files in Objective-C only need a .m implementation file and don't require a separate .h header.
Explains when to manually call willChangeValueForKey for KVO in Objective-C, using NSOperation as an example of proper usage.
A follow-up to an iPhone programming presentation, providing slides and a sample Xcode project demonstrating gesture-based temperature conversion.
A guide to setting up and writing unit tests for iOS apps in Xcode 4, covering project configuration, resource management, and bundle paths.
Explains how to automate removal of NSNotificationCenter and KVO observers in iOS using method swizzling and associated objects to prevent crashes.
A guide to integrating Apple's UIGestureRecognizers into cocos2d game projects without modifying the framework's source code.
A technical talk on Apple's Core Animation framework, covering layers, implicit/explicit animations, and advanced techniques like a multi-touch Bézier editor.
A tutorial on implementing parameterized (data-driven) test cases in the OCUnit framework for Objective-C, using a date conversion class as an example.
