Navigation bar not showing iOS swift

Question

I am having multiple view controller in my application. I want to hide navigationbar in my first view controller. So I use the following code to hide the navigation

Answer 1

I am having same requirement in my swift project.

this is how I have handled Navigation bar

Make sure your first screen is embedded into Navigation controller

example we have two screens A and B

In screen A you need to hide navigation bar in viewWillAppear

override func viewWillAppear(animated: Bool)
    {
         super.viewWillAppear(animated)

        //hide navigation for screen A
        self.navigationController?.navigationBarHidden = true
    }

for enabling Navigation in screen B you need to add below code in screen A

override func prepareForSegue(segue: (UIStoryboardSegue!), sender: AnyObject!)
    {
        if (segue.identifier == "screen B's segue identifier here")
        {
           //enable navigation for screen B       
            navigationController?.setNavigationBarHidden(navigationController?.navigationBarHidden == false, animated: true)
        }

    }

Using above style, I can enable or disable navigation bar for specific screen, whenever I want