How to make a UIView that can cover the navigation bar?

Question

I want to show the UIView in full screen, but show the status bar, other things, like the navigation bar need to cover by the UIView.

Answer 1

Struggling a little to fully understand the question, but I think you're asking how you can display a UIView above another view (so that the view with the navigation controls is completely hidden by the second view)?

UIViewController has:

- (void)presentModalViewController:(UIViewController *)modalViewController animated:(BOOL)animated

It would be wise to have your second view managed by a UIViewController, too. For the sake of example let's say your view with the navigation bar is managed by UINavigationViewController, and the view you want to display is managed by otherViewController...

[navigationViewController presentModalViewController:otherViewController animated:YES];