Removing UINavigationItem prompt making black space on bottom of navigation bar

Question

I have view controller in my storyboard with prompt text line but when I'm pushing a new view controller without prompt line in the navigation bar i get this (see picture) black space between the navigation bar and the view controller main view.

i already tried to remove the prompt using this:

    [self.navigationItem setPrompt:nil];

but i still having this problem.

Answer 1

Here is a work-around for setPrompt. It doesn't animate, so it I'm calling it a work-around instead of a solution. Must be in viewDidAppear, not viewWillAppear.

-(void) viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];

    // This is needed for apple bug with self.navigationItem.prompt
    [self.navigationController.navigationBar setNeedsUpdateConstraints];
}