How to dismiss keyboard for UITextView with return key

Question

In IB s library  the introduction tells us that when the return key is pressed  the keyboard for UITextView will disappear  But actually the return key can only act as   n     I can add a button and use  txtView resignFirstResponder  to hide the keyboard    But is there a way to add the action for the return key in keyboard so that I needn t add UIButton

User · Answer

Try this     NSInteger lengthOfText     textView text stringByTrimmingCharactersInSet  NSCharacterSet whitespaceAndNewlineCharacterSet   length

User · Answer

Simular to other answers using the UITextViewDelegate but a newer swift interface isNewline would be    func textView   textView  UITextView  shouldChangeTextIn range  NSRange  replacementText text  String  - gt  Bool       if let character   text first  character isNewline           textView resignFirstResponder           return false           return true

User · Answer

Try this     -  BOOL textView  UITextView   textView shouldChangeTextInRange  NSRange range replacementText  NSString   text      if   text isEqualToString    n               self view endEditing YES              return YES

User · Answer

I used this code to change responder    -  BOOL textView  UITextView   textView shouldChangeTextInRange   NSRange  range replacementText   NSString   text               if   text isEqualToString    n                     textView resignFirstResponder                 return YES              NSInteger nextTag   textView tag   1                 Try to find next responder             UIResponder  nextResponder    self view viewWithTag nextTag               if  nextResponder                       Found next responder  so set it                   nextResponder becomeFirstResponder                 else                      Not found  so remove keyboard                   textView resignFirstResponder                             return NO                 return NO                    return YES

User · Answer

I know it s not the exact answer to this question  but I found this thread after hunting the internet down for an answer  I assume others share that feeling   This is my variance of the UITapGestureRecognizer which I find reliable and easy to use - just set the delegate of the TextView to the ViewController   Instead of ViewDidLoad I add the UITapGestureRecognizer when the TextView becomes active for editing   - void textViewDidBeginEditing  UITextView   textView       tapRec     UITapGestureRecognizer alloc initWithTarget self action  selector tap           self view addGestureRecognizer   tapRec       NSLog   TextView Did begin        When I tap outside the TextView  the view ends editing mode and the UITapGestureRecognizer removes itself so I can continue interacting with other controls in the view   - void tap  UITapGestureRecognizer   tapRec        self view  endEditing  YES        self view removeGestureRecognizer tapRec       NSLog   Tap recognized  tapRec getting removed        I hope this helps  It seems so obvious but I have never seen this solution anywhere on the web - am I doing something wrong

User · Answer

Swift answer   override func viewDidLoad         super viewDidLoad       let tapGestureReconizer   UITapGestureRecognizer target  self  action   tap        view addGestureRecognizer tapGestureReconizer     func tap sender  UITapGestureRecognizer        view endEditing true

User · Answer

Just like matt comment to samvermette  I don t like the idea of detecting   n  either  The  return  key is there for a reason in UITextView  that is to go to next line of course    The best solution in my opinion is to mimic iPhone message app - which is to add toolbar  and button  on the keyboard    I got code from following blog post    http   www iosdevnotes com 2011 02 iphone-keyboard-toolbar   Steps   -Add toolbar to your XIB file - set the height to 460  -Add toolbar button item  if not already added   If you need to right-align it  also add flexible bar button item to XIB  and move the toolbar button item  -Create action that link your button item to resignFirstResponder as follow   -  IBAction hideKeyboard  id sender        yourUITextView resignFirstResponder       -Then   -  void viewWillAppear  BOOL animated        super viewWillAppear animated          NSNotificationCenter defaultCenter  addObserver self selector  selector keyboardWillShow   name UIKeyboardWillShowNotification object nil         NSNotificationCenter defaultCenter  addObserver self selector  selector keyboardWillHide   name UIKeyboardWillHideNotification object nil      -  void viewWillDisappear  BOOL animated        super viewWillDisappear animated          NSNotificationCenter defaultCenter  removeObserver self name UIKeyboardWillShowNotification object nil         NSNotificationCenter defaultCenter  removeObserver self name UIKeyboardWillHideNotification object nil      -  void keyboardWillShow  NSNotification   notification        UIView beginAnimations nil context NULL        UIView setAnimationDuration 0 3        CGRect frame   self keyboardToolbar frame      frame origin y   self view frame size height - 260 0      self keyboardToolbar frame   frame        UIView commitAnimations      -  void keyboardWillHide  NSNotification   notification        UIView beginAnimations nil context NULL        UIView setAnimationDuration 0 3        CGRect frame   self keyboardToolbar frame      frame origin y   self view frame size height      self keyboardToolbar frame   frame        UIView commitAnimations

User · Answer

I know this has been answered already but I don t really like using the string literal for the newline so here is what I did   -  BOOL textView  UITextView   txtView shouldChangeTextInRange  NSRange range replacementText  NSString   text       if   text rangeOfCharacterFromSet  NSCharacterSet newlineCharacterSet   location    NSNotFound             return YES              txtView resignFirstResponder       return NO      Swift 4 0 update    func textView   textView  UITextView  shouldChangeTextIn range  NSRange  replacementText text  String  - gt  Bool   if  text as NSString  rangeOfCharacter from  CharacterSet newlines  location    NSNotFound       return true   txtView resignFirstResponder   return false

User · Answer

I know this has been answered a lot of times  but here are my two cents to the issue   I found the answers by samvermette and ribeto really useful  and also the comment by maxpower in the ribeto s answer  But there is a problem with those approaches  The problem that matt mentions in the samvermette s answer and it s that if the user wants to paste something with a line break inside it  the keyboard would hide without pasting anything   So my approach is a mixture of the three above mentioned solutions and only checking if the string entered is a new line when the length of the string is 1 so we make sure the user is typing instead of pasting   Here is what I have done   -  BOOL textView  UITextView   textView shouldChangeTextInRange  NSRange range replacementText  NSString   text       NSRange resultRange    text rangeOfCharacterFromSet  NSCharacterSet newlineCharacterSet  options NSBackwardsSearch       if   text length     1  amp  amp  resultRange location    NSNotFound             textView resignFirstResponder           return NO             return YES

User · Answer

There is another solution while using with uitextview  You can add toolbar as InputAccessoryView in  textViewShouldBeginEditing   and from this toolbar s done button you can dismiss keyboard  the code for this is following      In viewDidLoad   toolBar     UIToolbar alloc initWithFrame CGRectMake 0  0  320  44      toolbar is uitoolbar object toolBar barStyle   UIBarStyleBlackOpaque  UIBarButtonItem  btnDone     UIBarButtonItem alloc  initWithBarButtonSystemItem UIBarButtonSystemItemDone target self action  selector btnClickedDone      toolBar setItems  NSArray arrayWithObject btnDone         In textviewdelegate method   -  BOOL textViewShouldBeginEditing  UITextView   textView         textView setInputAccessoryView toolBar        return YES         In action of Button Done which is in toolbar is following    - IBAction btnClickedDone  id sender        self view endEditing YES

User · Answer

- BOOL textView  UITextView   textView shouldChangeTextInRange  NSRange range replacementText  NSString   text       if  text isEqualToString    n             textView resignFirstResponder       return YES     yourtextView delegate self    Also add  UITextViewDelegate  Don t forget to confirm protocol  IF you didn t add if  text isEqualToString    n    you can t edit

User · Answer

For Swift 3  this code allowed me to press outside of the UITextView to dismiss the keyboard    IBOutlet weak var comment  UITextView      override func viewDidLoad             super viewDidLoad            comment delegate   self          let tapGestureRecogniser   UITapGestureRecognizer target  self  action   selector tap           view addGestureRecognizer tapGestureRecogniser             func tap sender  UITapGestureRecognizer            if comment isFirstResponder               comment resignFirstResponder

User · Answer

I found the answer by josebama to be the most complete and clean answer available in this thread    Below is the Swift 4 syntax for it    func textView   textView  UITextView  shouldChangeTextIn    NSRange  replacementText text  String  - gt  Bool       let resultRange   text rangeOfCharacter from  CharacterSet newlines  options   backwards      if text count    1  amp  amp  resultRange    nil           textView resignFirstResponder              Do any additional stuff here         return false           return true

User · Answer

function to hideQueboard   -  void HideQueyboard         UIApplication sharedApplication  sendAction  selector resignFirstResponder    to nil from nil forEvent nil

User · Answer

Using navigation controller to host a bar to dismiss the keyboard   in the  h file   UIBarButtonItem  dismissKeyboardButton    in the  m file   -  void viewDidLoad       dismissKeyboardButton     UIBarButtonItem alloc  initWithBarButtonSystemItem UIBarButtonSystemItemDone target self action  selector dismissKeyboard       - void textViewDidBeginEditing  UITextView   textView       self navigationItem rightBarButtonItem   dismissKeyboardButton     - void textFieldDidBeginEditing  UITextField   textField       self navigationItem rightBarButtonItem   dismissKeyboardButton     - void dismissKeyboard        self textField resignFirstResponder        self textView resignFirstResponder         or replace this with your regular right button     self navigationItem rightBarButtonItem   nil

User · Answer

UITextView does not have any methods which will be called when the user hits the return key  If you want the user to be able to add only one line of text  use a UITextField  Hitting the return and hiding the keyboard for a UITextView does not follow the interface guidelines   Even then if you want to do this  implement the textView shouldChangeTextInRange replacementText  method of UITextViewDelegate and in that check if the replacement text is  n  hide the keyboard   There might be other ways but I am not aware of any

User · Answer

Don t forget to set the delegate for the textView - otherwise resignfirstresponder won t work

User · Answer

Ok  Everyone has given answers with tricks but i think the right way to achieve this is by  Connecting the following action to the  Did End On Exit  event in Interface Builder    right-click the TextField and cntrl-drag from  Did end on exit  to the following method   - IBAction hideTheKeyboard  id sender        self view endEditing TRUE

User · Answer

You can also hide keyboard when touch in view screen   -  void touchesBegan  NSSet   touches withEvent  UIEvent   event        UITouch   touch    touches anyObject        if touch phase    UITouchPhaseBegan             txtDetail resignFirstResponder

User · Answer

Figured I would post the snippet right here instead   Make sure you declare support for the UITextViewDelegate protocol   -  BOOL textView  UITextView   textView shouldChangeTextInRange  NSRange range replacementText  NSString   text        if  text isEqualToString    n               textView resignFirstResponder           return NO             return YES      Swift 4 0 update   func textView   textView  UITextView  shouldChangeTextIn range  NSRange  replacementText text  String  - gt  Bool       if text      n            textView resignFirstResponder           return false           return true

User · Answer

swift  func textView textView  UITextView  shouldChangeTextInRange range  NSRange  replacementText text  String  - gt  Bool       if text      n            textView resignFirstResponder             return true

User · Answer

Add an observer in viewDidLoad    NSNotificationCenter defaultCenter  addObserver  self selector   selector textViewKeyPressed   name  UITextViewTextDidChangeNotification object  nil     and then use the selector to check for   n   - void  textViewKeyPressed   NSNotification   notification      if     notification object  text  hasSuffix    n              notification object  resignFirstResponder           It does use   n  and not specifically check for a return key  but I think this is OK   UPDATE  See ribto s answer below which uses  NSCharacterSet newlineCharacterSet  in place of  n

User · Answer

For Xcode 6 4   Swift 1 2        override func touchesBegan touches  Set lt NSObject gt   withEvent event  UIEvent                super touchesBegan touches  withEvent  event          if let touch   touches first as  UITouch                       self meaningTextview resignFirstResponder

User · Answer

Swift Code  Implement UITextViewDelegate in your class   View like so   class MyClass  UITextViewDelegate          set the textView delegate to self  myTextView delegate   self   And then implement the following     func textViewDidChange   textView  UITextView        if textView text characters count  gt   1            if let lastChar   textView text characters last                if lastChar      n                   textView text   textView text substring to  textView text index before  textView text endIndex                 textView resignFirstResponder                                     EDIT I updated the code because it is never a good idea to change the user input in a textfield to for a workarround and not resetting the state after the hack code completed

User · Answer

You should add UIToolbar to top UITextView to make easy rather than using shouldChangeTextIn  In Swift 4  let toolbar   UIToolbar frame  CGRect x  0  y  0  width  UIScreen main bounds width  height  50           toolbar barStyle    default         toolbar items                 UIBarButtonItem barButtonSystemItem   flexibleSpace  target  nil  action  nil               UIBarButtonItem title   Done   style   done  target  self  action   selector doneAction                     textView inputAccessoryView   toolbar    objc func doneAction     self textView resignFirstResponder

User · Answer

The question asks how to do it with the return key but I think this could help someone with the intent to just make keyboard disappear when using UITextView   private func addToolBarForTextView         let textViewToolbar  UIToolbar   UIToolbar       textViewToolbar barStyle    default     textViewToolbar items             UIBarButtonItem title   Cancel   style   done                    target  self  action   selector cancelInput            UIBarButtonItem barButtonSystemItem   flexibleSpace                    target  self  action  nil           UIBarButtonItem title   Post Reply   style   done                    target  self  action   selector doneInput             textViewToolbar sizeToFit       yourTextView inputAccessoryView   textViewToolbar     objc func cancelInput     print  cancel      objc func doneInput     print  done      override func viewDidLoad         super viewDidLoad       addToolBarForTextView       Call addToolBarForTextView   in the viewDidLoad or some other life cycle method   It seems that was the perfect solution for me    Cheers   Murat

User · Answer

void addDoneButtonToControl  id txtFieldOrTextView       if  txtFieldOrTextView isKindOfClass  UITextField class                  txtFieldOrTextView    UITextField   txtFieldOrTextView            else if  txtFieldOrTextView isKindOfClass  UITextView class                  txtFieldOrTextView    UITextView   txtFieldOrTextView             UIToolbar  numberToolbar     UIToolbar alloc initWithFrame CGRectMake 0                                                                            0                                                                             Global returnDeviceWidth                                                                             50        numberToolbar barStyle   UIBarStyleDefault        UIBarButtonItem  btnDone     UIBarButtonItem alloc  initWithImage  UIImage imageNamed   btn return                                                                   style UIBarButtonItemStyleBordered                                                                target txtFieldOrTextView                                                                action  selector resignFirstResponder         numberToolbar items    NSArray arrayWithObjects btnDone nil        numberToolbar sizeToFit        if  txtFieldOrTextView isKindOfClass  UITextField class                     UITextField   txtFieldOrTextView  inputAccessoryView   numberToolbar            else if  txtFieldOrTextView isKindOfClass  UITextView class                     UITextView   txtFieldOrTextView  inputAccessoryView   numberToolbar

User · Answer

A more elegant way is to dismiss the keyboard when the user taps somewhere outside of the keyboard s frame     First  set your ViewController s view to the class  UIControl  in the identity inspector in UIBuilder   Control-drag the view into the ViewController s header file and link it as an action with the event as Touch Up Inside  such as   ViewController h  - IBAction dismissKeyboardOnTap  id sender    In the main ViewController file  ViewController m   - IBAction dismissKeyboardOnTap  id sender                  self view  endEditing YES           You can require a double tap or long touch using similar techniques   You may need to set your ViewController to be a UITextViewDelegate and connect the TextView to the ViewController   This method works for both UITextView and UITextField   Source  Big Nerd Ranch  EDIT   I d also like to add that if you are using a UIScrollView  the above technique may not work as easily through the Interface Builder   In that case  you could use a UIGestureRecognizer and call the   self view  endEditing YES  method within it instead   An example would be   - void ViewDidLoad               UITapGestureRecognizer  tapRec     UITapGestureRecognizer alloc           initWithTarget self action  selector tap          self view addGestureRecognizer  tapRec               - void tap  UITapGestureRecognizer   tapRec        self view  endEditing  YES       When the user taps outside of the keyboard and does not tap an entry space  the keyboard will dismiss

User · Answer

You can use this      Step 1  The first step is to make sure that you declare support for the UITextViewDelegate protocol  This is done in your header file  as example here is the header called   EditorController h    interface EditorController   UIViewController      UITextView  messageTextView      property  nonatomic  retain  UITextView  messageTextView    end   Step 2  Next you will need to register the controller as the UITextView   s delegate  Continuing from the example above  here is how I have initialize the UITextView with EditorController as the delegate      -  id  init       if  self    super init                define the area and location for the UITextView         CGRect tfFrame   CGRectMake 10  10  300  100           messageTextView     UITextView alloc  initWithFrame tfFrame              make sure that it is editable         messageTextView editable   YES              add the controller as the delegate         messageTextView delegate   self          Step 3  And now the final piece of the puzzle is to take action in response to the shouldCahngeTextInRange message as follows   -  BOOL textView  UITextView   textView shouldChangeTextInRange  NSRange range    replacementText  NSString   text          Any new character added is passed in as the  text  parameter     if   text isEqualToString    n                 Be sure to test for equality using the  isEqualToString  message          textView resignFirstResponder               Return FALSE so that the final   n  character doesn t get added         return FALSE               For any other character return TRUE so that the text gets added to the view     return TRUE

User · Answer

-  BOOL textView  UITextView   textView shouldChangeTextInRange  NSRange range  replacementText  NSString   text       if  range length  0            if   text isEqualToString    n                   txtView resignFirstResponder               if textView returnKeyType   UIReturnKeyGo                     self PreviewLatter                   return NO                            return NO                    return YES

User · Answer

My hack for this    1- create a button covering the whole view  2- send it to the background of your view  3- change it  s Type from  Round Rect  to  Custom  in the Attribute Inspector  4- create an action 5- implement the action method   -  IBAction bgTouched  id sender          to dismiss keyboard on bg btn pressed       userInput resignFirstResponder       where  userInput is your TextField outlet

User · Answer

Add this method in your view controller   Swift   func textView textView  UITextView  shouldChangeTextInRange range  NSRange  replacementText text  String  - gt  Bool       if text      n            textView resignFirstResponder           return false           return true     This method also can be helpful for you       Dismiss keyboard when tapped outside the keyboard or textView   param  touches the touches  param  event   the related event    override func touchesBegan touches  NSSet  withEvent event  UIEvent        if let touch   touches anyObject   as  UITouch           if touch phase    UITouchPhase Began               textField  resignFirstResponder

User · Answer

Just solved this problem a different way    Create a button that will be placed in the background From the Attribute Inspector  change the button type to custom  and the makes the button transparent   Expand the button to cover the whole view  and make sure the button is behind all the other object  Easy way to do this is to drag the button to the top of list view in the View Control drag the button to the viewController h file and create an action  Sent Event  Touch Up Inside  like      IBAction ExitKeyboard  id sender   In ViewController m should look like     IBAction ExitKeyboard  id sender        self view endEditing TRUE      Run app  and when you click away from the TextView  the keyboard disappears

User · Answer

- BOOL textFieldShouldReturn  UITextField   textField     called from textfield  keyboard   - BOOL textView  UITextView   textView shouldChangeTextInRange  NSRange range replacementText  NSString   text     good tester function - thanks

[iphone] How to dismiss keyboard for UITextView with return key?

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