UIPopoverController to handle password box?

In the iPad when you have to fill in a password, like i开发者_如何学运维n the dropbox app. I know I have to create my own view, but is this view inside a UIPopoverController? If so, can somebody tell me how to create the popover to place my passcode view in so it looks like this:

Thanks in advance!

This is not a popovercontroller.

You can present modalViewController for this, keeping the modalPresentationStyle as UIModalPresentationFormSheet

urviewcontroller.modalPresentationStyle=UIModalPresentationFormSheet;

[self presentModalViewController:urviewcontroller animated:YES];

I am also working on passlok view and I have used the UIPopoverController with custom keyboard. Here how it looks like: