Much has been made of Apple not doing enough to prevent the trade in stolen iOS devices. Finally they are doing something about this, but I think it is going to cause a lot of problems for ordinary people and a predictable PR backlash against Apple. Here’s hoping that Apple put in place a system to deal with this very soon.
A look at Vesper’s UI
So John Gruber and friends released a new iOS app for note-taking called Vesper. You can Google a bunch of reviews and other interesting details about it, and what it does and deliberately does not do.
Debugging tools for OpenGL in XCode
My first iOS app has some UI elements that use OpenGL. It’s been interesting learning to optimise this particular part of the app for 60fps (60 frames per second) rendering. You hear 60fps being talked about a lot with iOS UI development, and there is very good reason for this.
If what you are doing animates in response to touches, 60fps updates are essential to avoid it feeling laggy. Apple spent a lot of time working this out before they unleashed even the first iPhone on the world.
Podcasts for iOS developers making their own apps
Honestly, I never used to listen to podcasts until about a year ago. I suddenly found that I did have the time to listen to content as I started going to the gym, and I realised how incredibly valuable the content could be.
I’m listening to quite a few at the moment centred around iOS development, design and business. I cannot recommend enough that you pick up some of these and listen regularly if you care about the iOS and Mac ecosystems and related design and business issues.
Why is my button triggering the wrong gesture?
I had a fun little problem in my work-in-progress iOS app recently. The app recognises a pan gesture on the main view, but also has some buttons as subviews of the main view. Think a white rectangle that receives pan gestures, and a UIButton in the middle of that view.
Everything worked fine in the simulator. Panning worked. Tapping the button worked. Not so on a real device.