objective c - Hiding The TopBar -

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I have tried different ways to hide the top navigation bar, but do not hide

  1. I have tried in viewDidAppear 

      [self.navigationController setToolbarHidden: yes];

  2. For UINavigationControllerDelegate confirm with this code, 

      (zero) navigationController: (UINavigationController *) navigationController willShowViewController: ( UIViewController *) Animated ViewController: (BOOL) animated {BOOL shouldhide = [count count count] [= count = count = 0]; [Navigation Controller Settlerbar: Animated Hearing: Animated]; }         
     
     
     
     Is pre>> code> UINavigationController * NAV_instructions = [[UINavigationController alloc] initWithRootViewController: instructions]; [Nav instructions set toolbarhead: yes]; [Nav instructions setmodeltransistor style: eumodal transcription styleparticial];

    Do I have to hide the top bar?

Try this: 

  self.navigationController.navigationBarHidden = yes ;

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