The first day of NSConference 2010 kicked off with two workshops – Concurrency Programming on Snow Leopard by Drew McCormack, and The World According to Gemmell, by the Legend himself, of which I was an attendee.
The session started with a discussion about a certain recently released Apple product which was very interesting and allowed us to present our thoughts on …

We’ve all seen it before: dialogs which ask you whether you are absolutely, completely, invariably sure that you want to close without saving changes. And you click “Yes” in your haste, and then realise that you actually kind of needed that unsaved presentation that you’d been working on all evening.

A flawed design
It’s a pretty common design in applications even today, …

The NSUserDefaults class provides Cocoa applications access to the underlying Mac OS X defaults system, and can be used to store and persist user preferences.
Whilst providing an interface to the defaults system, the NSUserDefaults class can also be used to access command line arguments that were passed when the executable was launched, which have already been parsed and are accessed …

Source Lists feature in many Mac OS X applications. From iTunes to iCal to Versions, they are a great navigation control.
But for us Cocoa developers, they aren’t that easy to implement. You can easily create an NSOutlineView and set its highlight mode to “Source List” but none of the other Source List features come built in out of the box, …

Interface Builder is one of Apple’s developer tools, used to design interfaces for both Mac OS X and iPhone applications, and in most instances saves developers huge amounts of time from having to write the equivalent code, whilst also providing a useful visual representation of the interfaces they are working on.
Some developers try and fight Interface Builder, and would rather …

People like clicking; after all, wasn’t the mouse the main piece of hardware that lead to the GUI and made computers more accessible?

But people don’t like repetitive, boring tasks. And one of the areas where this is done especially poorly is when performing batch operations on large sets of data, where the user has to go through several stages to …