Q:

How does Facebook iPhone app implement the pop-over window for notifications?

How does Facebook iPhone app (4.1) implement the pop-over window for notifications (see below for screenshot)?  I thought this was only capable on the iPad.  Is this a lookalike that they have custom built?

A:

Check out this library which can implement pop over menus like facebook app: https://github.com/50pixels/FPPopover

