Augmented Reality (AR) technology is a growing trend, and we’ll undoubtedly be seeing it used in a great many future mobile apps. So far, its hard to achieve its full potential due to limitations in the hardware and software available today, but  in theory all you need to produce a simple AR app is a decent CPU, a camera, a GPS device and some clever programming. We decided to put this theory to the test and build a simple AR app.

In classic view-based iPhone application it is enough to implement view controller's

method for managing device orientation. Unfortunately it doesn't work with tab-based application. I can't guarantee that my solution is the best, but I found a simple way around.

A DropDown List control is a novelty for iOS. Cocoa framework does not support the standard DropDown List control. The aim of this article is to explain how we implemented the DropDownList control in iPad applications.