Paper View effect iPhone

I would like to create a turn up page view with button under the view like the first image of this app: http://itunes.apple.com/us/app/ihandy-t开发者_运维知识库ranslator-pro/id402422247?mt=8

How can I do this "page peek" view, it works so if I press in the bottom right of the yellow pad is raised and the button are displayed. How can I do that? And how is this method of view called?

Create a view controller to hold the buttons, then present it modally using the UIModalTransitionStylePartialCurl modal transition style.