URL Schemes on iOS

The URL scheme is a useful little feature in iOS that allows unrelated applications to communicate with each other in a controlled way. One application can use a custom URL scheme registered by another to pass control to it, supplying arguments as required. Standard URL Schemes Some of the standard iOS apps have URL schemes […]
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iOS Devices Get Everywhere

I’ve had some time between travelling and teaching over the past few weeks and it’s been an opportunity to give my planted aquarium some much-needed attention. Writing Learning Tree’s Building iPhone® and iPad® Applications: Extended Features course at the end of last year involved many long hours writing materials and several trips across the Atlantic […]
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Wishlist for iOS 6

The Apple World Wide Developer Conference (WWDC) 2012 is almost upon us and I think we can expect a whole raft of announcements from Apple about new hardware and software features. Maybe even a new iPhone, a new iPad and a beta version of iOS 6 to play with? As developers we like big new […]
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Version Control for iOS Projects

Why Version Control Is Important Imagine the situation: You’ve created an app for the iPhone or iPad, tested it and submitted it to the App Store. It’s going well. People are downloading it and giving it good reviews. In fact it’s going so well that you’ve decided to concentrate all your development time on adding […]
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Making Friends with Objective-C

When I teach iPhone and iPad courses for Learning Tree, there are usually a few comments about Apple’s choice of Objective-C as the programming language for iOS. Typically something along the lines of, “Why couldn’t they just use XYZ?”. It is true that Objective-C can appear strange at first. Most students that attend Learning Tree […]
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