iPhone and iPad development

Few days ago I found nice class which handles custom OpenGL UIView transitions http://memention.com/blog/2010/02/28/Bells-and-Whistles.html I would probably stick to it and use it, but unfortunately I didn't like the lag before the animation starts and few details (not working on all orientations ...). So I decided to rewrite it from scratch, make it as fast as possible, and maybe a little bit easier (if possible) to use.

I ended up with HMGLTransitions which you can download from here http://github.com/Split82/HMGLTransitions The biggest difference between this and previously mentioned implementations is that I use singleton object which creates OpenGL context only once. This can drastically improve starting lag of animation. Also I don't resample textures and use exact size. Next "big" thing is that all device orientations are supported. Now everything works nice and smooth (except cloth animation on iPhone 3G and lower ;) There are still some things which should be added and there is also space for some performance enhancements, but for now it's enough and can be used without having any problems on iPhone. On iPad there might be performance issues (starting lag) if the view hierarchy which needs to be rendered to the texture is too complicated.

As an exercise in using the Core Animation API, I've implemented a little iPhone app that reproduces the behavior of the iPhone home screen's icon reorganization interface. (You know, dragging the wiggly icons around.) You can download my sample code to see how it works. Some descriptions of the highlights follow below.

With the release of the iOS 4.2 update yesterday, the major focus was on all the new features iPad users would receive - folders, multitasking and a unified inbox, to name a few. It also offered two major new features for all iOS users (iPhone, iPad and iPod Touch) - AirPlay and AirPrint, the former for streaming content between Apple devices and the latter for printing from mobile devices to networked printers.

Very simple iPhone application with UIPickerView, created from scratch, based on Window-Based Application

Add Three20 to any iOS application in a single command. Never spend time configuring projects manually again.