Safari-style UIPopoverController from Toolbar

I'm creating an iPad application which needs a UIPopoverController like this one (I mean, with buttons):

I tried using a UIViewController but it gives me an enormous popup with a white background.

Can anyone explain me how开发者_Python百科 to make one? I cannot find any documentation or example code. Thanks.

You need -[UIActionSheet showFromBarButtonItem:animated:] instead of a UIPopoverController.