I'm teaching my highly-acclaimed Native iOS development workshop in Brighton (UK) next month, from the 22nd-24th of February.

The course will give you strong foundations in Objective-C and Cocoa Touch to give you a solid start to building your own iOS apps in just three days.

(more...)

Update: Check out New – Core Cocoa: Native iOS Development Workshop in Brighton, UK, February 22-24, 2012..

Here's your last chance to attend a native iOS workshop by me in the UK. Come to Brighton on November 23-25 to join me for three days of hands-on hacking as you learn the foundations of Objective-C, Cocoa Touch, and Xcode. We'll be covering iOS5 and Xcode 4.2 (the latest versions).

(more...)

In the initial version of the upcoming Update conference web site, I'm optimizing for desktop, iPad, and iPhone-tier phones. This means that I have to create five different versions of nearly every image. One for the desktop size, one for 320px wide screens, one for 480px wide screens, and two for the Retina (@2X) resolutions. Of course, saving all those images by hand would suck. And it's not enough just to resize the images and export them for web since, when resized, I need to unsharp mask them to make sure they're not blurry.

I initially thought I could record an action to do this, but the Photoshop file I have for the graphics has dozens of layers. I thought I could use the Layer comps to files… script that ships with Photoshop but – while it let me export layer comps to files – it wouldn't let me add custom actions in the middle of the process (in this case to unsharp mask the image once it was resized).

(more...)

Twitter has been ablaze recently with revelations that iPhones and iPad 3Gs are secretly recording your every move, and have been doing so for about a year now.

(more...)

March is about to become a mad month for me, starting tomorrow (or perhaps it started on Friday, with Geek Ninja Battle Night). Today, I'm off to London, staying overnight at Heathrow (and hopefully attending this evening's NSCoder night in London) before flying to Lithuania tomorrow where, on Thursday, I will be presenting the opening keynote at the LOGIN conference, in front of an expected audience of over 2,000 (no pressure!)

(more...)