UINavigationBar Hide back Button Text

Question

How can I hide the Back Button Text from an UINavigation Controller  I will only have the   lt   and not   lt  Back

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This is my resolution for iOS11  I change the appearance of UIBarButtonItem in applicationDidFinishLaunchingWithOptions    UIBarButtonItem appearance   setBackButtonTitlePositionAdjustment UIOffsetMake -100  0   for UIBarMetrics default    You can t change Y offset  because it will change the back bar button s position too in iOS11  but it s OK in iOS10 and below

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The current answer wasn t working  I wanted to remove the title entirely  yet the text  back  wasn t going away    Go back to the previous view controller and set its title property   self title           ONLY works when the previous View Controller does not have a title

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The only thing which works with no side-effects is to create a custom back button  As long as you don t provide a custom action  even the slide gesture works   extension UIViewController   func setupBackButton         let customBackButton   UIBarButtonItem title       style   plain  target  nil  action  nil      navigationItem backBarButtonItem   customBackButton      Unfortunately  if you want all back buttons in the not to have any titles  you need to setup this custom back button in all your view controllers     override func viewDidLoad         super viewDidLoad        setupBackButton       It is very important you set a whitespace as the title and not the empty string

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This is from my xamarin forms code  the class derives from NavigationRenderer  NavigationBar Items FirstOrDefault   BackBarButtonItem   new UIBarButtonItem      UIBarButtonItemStyle Plain  null

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Another solution to this issue for situations where you have a great deal of view controllers is to use a UIAppearance proxy to effectively hide the back button title text like this   UIBarButtonItem  navBarButtonAppearance    UIBarButtonItem appearanceWhenContainedIn  UINavigationBar class   nil     navBarButtonAppearance setTitleTextAttributes        NSFontAttributeName              UIFont systemFontOfSize 0 1       NSForegroundColorAttributeName   UIColor clearColor                                          forState UIControlStateNormal     This solution will render the text as a tiny clear dot  similar to manually setting the back button title to       except that it affects all nav bar buttons   I don t suggest this as a general solution to the issue because it impacts all navigation bar buttons  It flips the paradigm so that you choose when to show the button titles  rather than when to hide the titles   To choose when to show the titles  either manually restore the title text attributes as needed  or create a specialized subclass of UIBarButtonItem that does the same  potentially with another UIAppearance proxy    If you have an app where most of the back button titles need to be hidden  and only a few  or none  of the nav buttons are system buttons with titles  this might be for you    Note  the font size change is needed even though the text color is clear in order to ensure that long titles do not cause the center nav bar title to shift over

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I tried some above and below but they didn t work  This worked for me   override func viewWillAppear   animated  Bool        super viewWillAppear animated      self navigationController  navigationBar topItem  title

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Swift 3 1 You can do this by implementing the delegate method of UINavigationController    func navigationController   navigationController  UINavigationController                             willShow viewController  UIViewController  animated  Bool             It ll hide the Title with back button only          we ll still get the back arrow image and default functionality              let item   UIBarButtonItem title       style   plain  target  nil                                  action  nil      viewController navigationItem backBarButtonItem   item

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The following method works on iOS 11 and is safe to not crash on other iOS versions  Doing this may get your app rejected in App Store review since both UIModernBarButton and UIBackButtonContainerView are private APIs  Place in AppDelegate       if         let UIModernBarButton   NSClassFromString   UIModernBarButton   as  UIButton Type          let UIBackButtonContainerView   NSClassFromString   UIBackButtonContainerView   as  UIView Type            let backButton   UIModernBarButton appearance whenContainedInInstancesOf   UIBackButtonContainerView self           backButton setTitleColor  clear  for   normal

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Finally found perfect solution to hide default back text in whole app   Just add one transparent Image and add following code in your AppDelegate   UIBarButtonItem appearance   setBackButtonBackgroundImage  imageLiteral resourceName   transparent    for   normal  barMetrics   default

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XCode 11 5 Swift 5 A very simple - though perhaps a little hacky - way of doing programmatically this if you don t need the custom back button is to set the font size equal to zero in the view controller you re pushing onto the stack  calling something like  this from viewDidLoad private func setupNavBar         let appearance   UINavigationBarAppearance       appearance configureWithDefaultBackground            let backButtonAppearance   UIBarButtonItemAppearance       backButtonAppearance normal titleTextAttributes     font  UIFont name   quot Arial quot   size  0        appearance backButtonAppearance   backButtonAppearance      navigationItem standardAppearance   appearance     navigationItem scrollEdgeAppearance   appearance     navigationItem compactAppearance   appearance

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I was struggling with this because I had a custom navigation controller  I was able to remove the back item text in all view controllers with this code in my custom navigation controller class override func viewDidLayoutSubviews            self navigationBar backItem  title             This removes all of the back item titles using this custom navigation controller

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Add the following code in viewDidLoad or loadView  self navigationController navigationBar topItem title            I tested it in iPhone and iPad with iOS 9

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In iOS 11  we found that setting UIBarButtonItem appearance s text font color to a very small value or clear color will result other bar item to disappear  system does not honor the class of UIBarButton item anymore  it will convert it to a  UIModernBarButton   Also setting the offset of back text to offscreen will result flash during interactive pop    So we swizzled addSubView      void load       if   available iOS 11                 NSClassFromString    UIBackButtonContainerView       jr swizzleMethod  selector addSubview   withMethod  selector MyiOS11BackButtonNoTextTrick addSubview   error nil            -  void MyiOS11BackButtonNoTextTrick addSubview  UIView   view       view alpha   0      if   view isKindOfClass  UIButton class              UIButton  button    id view           button setTitle      forState UIControlStateNormal              self MyiOS11BackButtonNoTextTrick addSubview view

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In Swift3   If you set global setting   func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   UIApplicationLaunchOptionsKey  Any    - gt  Bool                   let BarButtonItemAppearance   UIBarButtonItem appearance       BarButtonItemAppearance setTitleTextAttributes  NSForegroundColorAttributeName  UIColor clear   for   normal      BarButtonItemAppearance setTitleTextAttributes  NSForegroundColorAttributeName  UIColor clear   for   highlighted

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I tried everything in this post  The only working solution is  VoidLess s  Here is the same answer but more complete   class CustomNavigationController  UINavigationController        override func viewWillAppear   animated  Bool            super viewWillAppear animated          self delegate   self              MARK UINavigationControllerDelegate extension CustomNavigationController       func navigationController   navigationController  UINavigationController  willShow viewController  UIViewController  animated  Bool            viewController navigationItem backBarButtonItem   UIBarButtonItem title       style   plain  target  nil  action  nil

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Alternative way - use custom NavigationBar class   class NavigationBar  UINavigationBar        var hideBackItem   true     private let emptyTitle           override func layoutSubviews             if let  topItem    topItem              topItem backBarButtonItem  title    emptyTitle              hideBackItem               topItem backBarButtonItem   UIBarButtonItem title  emptyTitle  style   plain  target  nil  action  nil                     super layoutSubviews              That is  this remove back titles whole project  Just set custom class for UINavigationController

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- void setNavigationItems       UIBarButtonItem  leftBarButtonItem   UIBarButtonItem alloc initWithTitle     Your title here    style UIBarButtonItemStyleBordered target self action  selector backButtonClicked            self navigationController navigationBar topItem backBarButtonItem leftBarButtonItem    - void backButtonClicked       self navigationController popViewControllerAnimated YES

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A lot of answers already  here s my two cents on the subject   I found this approach really robust   You just need to put this in viewController before segue    Swift 4   override func prepare for segue  UIStoryboardSegue  sender  Any         navigationItem backBarButtonItem   UIBarButtonItem title      style   plain  target  nil  action  nil

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For those who want to hide back button title globally   You can swizzle viewDidLoad of UIViewController like this       void overrideBackButtonTitle        NSError  error          I use  Aspects  for easier swizzling        UIViewController aspect hookSelector  selector viewDidLoad                                withOptions AspectPositionBefore                                usingBlock   id lt AspectInfo gt  aspectInfo                 UIViewController  vc    UIViewController   aspectInfo instance              Check whether this class is my app s view controller or not             We don t want to override this for Apple s view controllers             or view controllers from external framework           NSString  className   NSStringFromClass  vc class            Class class    NSBundle mainBundle classNamed className           if   class               return                     UIBarButtonItem  backButton     UIBarButtonItem alloc  initWithTitle      style UIBarButtonItemStylePlain target nil action nil           vc navigationItem backBarButtonItem   backButton         error  amp error        if  error            NSLog    s error         FUNCTION    error localizedDescription              Usage   -  BOOL application  UIApplication   application didFinishLaunchingWithOptions  NSDictionary   launchOptions         self class  overrideBackButtonTitle       return YES

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Set Title of the Previous VC to     string with space  and title with the back button will be replaced with single space string   Self title         On Back press again reset the title to original one in the viewWillAppear

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Swift version  works perfectly globally    func application application  UIApplication  didFinishLaunchingWithOptions launchOptions   NSObject  AnyObject    - gt  Bool            UIBarButtonItem appearance   setTitleTextAttributes  NSForegroundColorAttributeName UIColor clearColor     forState  UIControlState Normal          UIBarButtonItem appearance   setTitleTextAttributes  NSForegroundColorAttributeName UIColor clearColor     forState  UIControlState Highlighted           return true

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My solution   - XCode  10 2 1 - Swift  5   Parent viewcontroller    self title       Child viewcontroller     self navigationItem title    Your title     to set title for viewcontroller

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You can implement UINavigationControllerDelegate like this   Older Swift  func navigationController navigationController  UINavigationController  willShowViewController viewController  UIViewController  animated  Bool        let item   UIBarButtonItem title       style   Plain  target  nil  action  nil      viewController navigationItem backBarButtonItem   item     Swift 4 x  class MyNavigationController  UINavigationController  UINavigationControllerDelegate       override func viewDidLoad             super viewDidLoad           self delegate   self            func navigationController   navigationController  UINavigationController  willShow viewController  UIViewController  animated  Bool            let item   UIBarButtonItem title       style   plain  target  nil  action  nil          viewController navigationItem backBarButtonItem   item           backBarButtonItem is nil by default and it affects next pushed controller  so you just set it for all controllers

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Use a custom NavigationController that overrides pushViewController  class NavigationController  UINavigationController       override func pushViewController   viewController  UIViewController  animated  Bool        viewController navigationItem backBarButtonItem         UIBarButtonItem title      style   plain  target  nil  action  nil      super pushViewController viewController  animated  animated

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to remove the Text from backbutton programmatically  used below Code this will work form xcode7 and above   self navigationController navigationBar topItem title          or  manualLy in storyboards  select the navigation bar on the view controller and put     in back button text   this will work  thanks

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Setting title of the back button to     or nil won t work  You need to set the entire button empty  without a title or image    Objective-C   self navigationItem setBackBarButtonItem   UIBarButtonItem alloc  initWithTitle     style UIBarButtonItemStylePlain target nil action nil      Swift  self navigationItem backBarButtonItem   UIBarButtonItem title      style   plain  target  nil  action  nil    This should be done on the view controller that s on top of your view controller in navigation stack  i e  from where you navigate to your VC via pushViewController method

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You could also do this through storyboard  In the attribute inspector of the navigation item of the previous controller you could set     in the Back button field  Refer Image below  Replace  Your Title here  to      By doing this you will achieve the desired result  You don t need to mess with the  Title  anymore   Programmatically you could use   self navigationItem backBarButtonItem setTitle          where self refers to the controller which pushes your desired View controller     Sample Before  After Navigation bar  Before   After

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The back text come from last View Controller s navigationItem title and navigationItem title is automaticly set by self title  So easy way to solve the problem is hook setTitle  make sure navigationItem title        Put this code at AppDelegate m will make it ok        UIViewController aspect hookSelector  selector setTitle                                 withOptions AspectPositionAfter                                usingBlock   id lt AspectInfo gt  aspectInfo  NSString  title            UIViewController  vc   aspectInfo instance          vc navigationItem titleView                  UILabel  titleLabel     UILabel alloc  initWithFrame CGRectZero               titleLabel font    UIFont preferredFontForTextStyle UIFontTextStyleHeadline               titleLabel text   title              titleLabel                      vc navigationItem title              error NULL      More details at https   www jianshu com p 071bc50f1475  Simple Chinease

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In the interface builder  you can select the navigation item of the previous controller and change the Back Button string to what you d like the back button to appear as  If you want it blank  for example  just put a space   You can also change it with this line of code    self navigationItem backBarButtonItem setTitle   Title here     Or in Swift   self navigationItem backBarButtonItem  title

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If you re targeting iOS 13 and later you can use this new API to hide the back button title globally   let backButtonAppearance   UIBarButtonItemAppearance   backButtonAppearance normal titleTextAttributes     foregroundColor  UIColor clear   UINavigationBar appearance   standardAppearance backButtonAppearance   backButtonAppearance UINavigationBar appearance   compactAppearance backButtonAppearance   backButtonAppearance UINavigationBar appearance   scrollEdgeAppearance backButtonAppearance   backButtonAppearance

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You can add this Objective-C category to make all  Back  buttons created by a navigation controller have no text  I just added it to my AppDelegate m file    implementation UINavigationItem  Customization        Removes text from all default back buttons so only the arrow or custom image shows up      - UIBarButtonItem   backBarButtonItem       return   UIBarButtonItem alloc  initWithTitle     style UIBarButtonItemStylePlain target nil action nil       end   PS -  I don t know how to make this extension work with Swift  it was having weird errors  Edits welcome to add a Swift version

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UINavigationControllerDelegate s navigationController    willShow   animated   method implementation did the trick for me  Here goes the full view controller source code  if you want to apply this throughout the app  make all viewcontrollers to derive from BaseViewController  class BaseViewController  UIViewController          Controller Actions     override func viewDidLoad             super viewDidLoad           navigationController  delegate   self            override func viewWillAppear   animated  Bool            super viewWillAppear animated          updateNavigationBar                    This is for custom back button image      func updateNavigationBar             let imgBack   UIImage named   quot icon back quot           self navigationController  navigationBar backIndicatorImage   imgBack         self navigationController  navigationBar backIndicatorTransitionMaskImage   imgBack         self navigationItem backBarButtonItem   UIBarButtonItem            extension BaseViewController  UINavigationControllerDelegate         This is to remove the  quot Back quot  text from back button      func navigationController   navigationController  UINavigationController  willShow viewController  UIViewController  animated  Bool            viewController navigationItem backBarButtonItem   UIBarButtonItem

[ios] UINavigationBar Hide back Button Text

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