Adding a UINavigationController as a subview of UIView

Question

I\'m trying to display a UILabel on top of a UINavigationController. The problem is that when I add the UILabel as a subview of UIWindow it will not automatically rotate sin

Answer 1

Using this code seems to work:

nav.view.frame = CGRectMake(nav.view.frame.origin.x, nav.view.frame.origin.y - 20,
                          nav.view.frame.size.width, nav.view.frame.size.height);

I did this before adding the navigation controller as a subview. Using the [UIApplication sharedApplication].statusBarFrame instead of the hard coded 20 would probably be a good idea too.

I'm not sure if it's the best way to do it though.

Answer 2

Swift 5: add the following line in the viewDidLoad() of the root view controller of the UINavigationController.

self.edgesForExtendedLayout = [.top, .bottom]

Answer 3

I had this same problem actually but managed to fix it.

I noticed that my view controller's view had the correct frame, but the view controller's navigation bar did not (it had a frame origin of (0,20) ).

Insert this into the view's controller that is the superview of the navigation controller:

- (void) viewDidAppear:(BOOL)animated {
    if (navigationController.navigationBar.frame.origin.y != 0) {
        [[navigationController view] removeFromSuperview];
        [[self view] addSubview:navigationController.view];
    }
}

Answer 4

If you want a frame representing the available content area, then you should just use: [[UIScreen mainScreen] applicationFrame]. Of course, this restricts your top-level view controller so that it can only be top level. So still kind of dodgy, but less so.

Answer 5

Why don't you use App Frame instead of adding some values to origins? I mean using:

CGRect appFrame = [[UIScreen mainScreen] applicationFrame];

as a reference frame, and do something like this:

nav.view.frame = CGRectMake(appFrame.origin.x, appFrame.origin.y, ...

This one worked for me.