how to customize UITabbar

Question

How to customize UITabBarController to have something like this:

In its normal state, it just looks like a normal UItabbar control with a more button (the area enclosed in red rectangle). When users click more button the second row is shown up like in the image.

Answer 1

This is most likely a custom view that is emulating a standard view.

Search online for these, as many of them are available for general use; for instance:

http://www.cocoacontrols.com/search?utf8=%E2%9C%93&q=tab+bar

In particular, the picture you posted looks like "CRTabBarController":

http://www.cocoacontrols.com/platforms/ios/controls/crtabbarcontroller--2

Answer 2

Take a look at CRTabBarController. I haven't used it but it should suit your needs.