How to hide a navigation bar from first ViewController in Swift

Question

How can I hide a navigation bar from first ViewController or a particular ViewController in swift    I used the following code in viewDidLoad     override func viewDidLoad         super viewDidLoad       self navigationController  isNavigationBarHidden   true     and also on viewWillAppear   override func viewWillAppear animated  Bool        self navigationController  isNavigationBarHidden   true     Both methods hide the navigation controller from all ViewControllers

User · Answer

Call the set hide method in view Will appear and Disappear  if you will not call the method in view will disappear with status false It will hide the navigation bar in complete navigation hierarchy      override func viewWillAppear   animated  Bool        super viewWillAppear animated      self navigationController  setNavigationBarHidden true  animated  true     override func viewWillDisappear   animated  Bool        super viewWillDisappear animated      self navigationController  setNavigationBarHidden false  animated true

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If you know that all other views should have the bar visible  you could use viewWillDisappear to set it to visible again   In Swift   override func viewWillAppear   animated  Bool        super viewWillAppear animated      navigationController  setNavigationBarHidden true  animated  animated     override func viewWillDisappear   animated  Bool        super viewWillDisappear animated      navigationController  setNavigationBarHidden false  animated  animated

User · Answer

You can do it from the window controller  Swift3   class WindowController  NSWindowController        override func windowDidLoad             super windowDidLoad            window  titleVisibility    hidden

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In IOS 8 do it like    navigationController  hidesBarsOnTap   true   but only when it s part of a UINavigationController   make it false when you want it back

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I use a variant of the above  and isolate sections of my app to be embedded in differing NavControllers  This way  i don t have to reset visibility  Very useful in startup sequences  for example

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You could also create an extension for this so you will be able to reuse the extension without implementing this again and again in every view controller   import UIKit  extension UIViewController       func hideNavigationBar animated  Bool              Hide the navigation bar on the this view controller         self navigationController  setNavigationBarHidden true  animated  animated              func showNavigationBar animated  Bool               Show the navigation bar on other view controllers         self navigationController  setNavigationBarHidden false  animated  animated             So you can use the extension methods as below      override func viewWillAppear   animated  Bool            super viewWillAppear animated          hideNavigationBar animated  animated             override func viewWillDisappear   animated  Bool            super viewWillDisappear animated          showNavigationBar animated  animated

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Ways to show Navigation Bar in Swift   self navigationController  setNavigationBarHidden false  animated  true  self navigationController  navigationBar isHidden   false self navigationController  isNavigationBarHidden   false

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private func setupView             view backgroundColor    white         navigationController  setNavigationBarHidden true  animated  false

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Ways to hide Navigation Bar in Swift   self navigationController  setNavigationBarHidden true  animated  true  self navigationController  navigationBar isHidden   true self navigationController  isNavigationBarHidden   true

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In Swift 3   you can use isNavigationBarHidden Property also to show or hide navigation bar  override func viewWillAppear   animated  Bool        super viewWillAppear animated         Hide the navigation bar for current view controller     self navigationController  isNavigationBarHidden   true     override func viewWillDisappear   animated  Bool        super viewWillDisappear animated         Show the navigation bar on other view controllers    self navigationController  isNavigationBarHidden   false

User · Answer

Swift 3  override func viewWillAppear   animated  Bool        super viewWillAppear animated          Hide the navigation bar on the this view controller     self navigationController  setNavigationBarHidden true  animated  animated     override func viewWillDisappear   animated  Bool        super viewWillDisappear animated          Show the navigation bar on other view controllers     self navigationController  setNavigationBarHidden false  animated  animated

User · Answer

You can unhide navigationController in viewWillDisappear  override func viewWillDisappear animated  Bool        super viewWillDisappear animated      self navigationController  isNavigationBarHidden   false     Swift 3  override func viewWillDisappear   animated  Bool        super viewWillDisappear animated       self navigationController  setNavigationBarHidden false  animated  animated

[ios] How to hide a navigation bar from first ViewController in Swift?

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