How to split screen from the center in iphone?

I wanna split the screen from the center of my view like the application of "Best Alarm Clock" infoSpider,Inc

[c开发者_如何学Check the link of this application and in opening of application how it split from the center]

http://itunes.apple.com/us/app/best-alarm-clock-free/id353404769?mt=8

Let me know how can i implement this feature in my application.

There are few ways to do it. The simple one, you can create an uiview an attached to your view controller.

EDIT:

Or you might want to use UISplitViewController