How to create separate UI for Landscape and Portrait?

Question

Is there any good tutorial that shows how to create a UI like the one on iPhone\'s calculator? It looks to me that it has two different views in the same initial ViewController

Answer 1

I created a project and publish it on GitHub for everyone wants to create a UI that responds exactly like the default iPhone calculator. The link for the project is https://github.com/FotiosTragopoulos/OrientationUI