One of the main issues with KVO is caused by classes not knowing what observers a superclass has registered.
When a subclass also wants to observe the same keyPath they have the danger of removing the observer from the super class.

- (void)someMethod
{
    [self addObserver:self
           forKeyPath:@"view.frame

__attribute((objc_requires_super)) was first introduced as work in progress into CLANG in September 2012 and was documented in October 2013. On both OS X and iOS there is now a NS_REQUIRES_SUPER macro that conditionally wraps the objc_requires_super attribute depending on compiler support. Once a

After having promised to have LTE available by the end of 2013, today was the day that my account was finally enabled for LTE on Three. While the mast near my home has not yet been upgraded for LTE. The wait was definitely worth it.

This test was conducted in

Alternative Objective-C User Defined Literals

AOCUDL was inspired by Dustin Bachrach's OCUDL.

The purpose of AOCUDL is to provide a simple way to define custom literals for Objective-C. These are correctly typecast, extensible and flexible.

The source is available on GitHub.

To add this to your project using CocoaPods

OCUDL: Objective-C User Defined Literals

Recently a GitHub project has been published that aims to introduce custom literals to Objective-C. The syntax is simple: $(#FF0000) would return [UIColor redColor] while $(null) could return NSNull. It also allows classes to register their own mapping. Full details can be found on Dustin

HCViews 1.2 was released today. As well as fixing a small bug in HCChevronView it also adds UIAlertView (HCContext)

This adds a context property to UIAlertView to allow an object to be associated with it. The aim is to allow the delegate to perform the appropriate action without having