iOS - Dismiss keyboard when touching outside of UI

问题:

I\'m wondering how to make the keyboard disappear when the user touches outside of a UITextField.

回答1:

You\'ll need to add an UITapGestureRecogniser and assign it to the view, and then call resign first responder on the UITextField on it\'s selector.

The code:

In viewDidLoad

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)];

[self.view addGestureRecognizer:tap];

In dismissKeyboard:

-(void)dismissKeyboard 
{
    [aTextField resignFirstResponder];
}

(Where aTextField is the textfield that is responsible for the keyboard)

Swift 3 version looks like that

let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard (_:)))
self.view.addGestureRecognizer(tapGesture)

For dismissKeyboard

func dismissKeyboard (_ sender: UITapGestureRecognizer) {
    aTextField.resignFirstResponder()
}

回答2:

I mashed up a few answers.

Use an ivar that gets initialized during viewDidLoad:

UIGestureRecognizer *tapper;

- (void)viewDidLoad
{
    [super viewDidLoad];
    tapper = [[UITapGestureRecognizer alloc]
                initWithTarget:self action:@selector(handleSingleTap:)];
    tapper.cancelsTouchesInView = NO;
    [self.view addGestureRecognizer:tapper];
}

Dismiss what ever is currently editing:

- (void)handleSingleTap:(UITapGestureRecognizer *) sender
{
    [self.view endEditing:YES];
}

回答3:

Check this, this would be the easiest way to do that,

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
      [self.view endEditing:YES];// this will do the trick
}

Or

This library will handle including scrollbar auto scrolling, tap space to hide the keyboard, etc...

https://github.com/michaeltyson/TPKeyboardAvoiding

回答4:

I see that some people are having issues using the UITapGestureRecognizer method. The easiest way that I\'ve accomplished this functionality while still leaving my existing button\'s tap behavior intact is adding only one line to @Jensen2k \'s answer:

[tap setCancelsTouchesInView:NO];

This allowed my existing buttons to still work without using @Dmitry Sitnikov \'s method.

Read about that property here (search for CancelsTouchesInView): UIGestureRecognizer Class Reference

I\'m not sure how it would work with scrollbars, as I see some had issues with, but hopefully someone else might run into the same scenario I had.

回答5:

It is better to make your UIView an instance of UIControl (in interface builder) and then connect their TouchUpInside event to dismissKeyboard method. This IBAction method will look like:

- (IBAction)dismissKeyboard:(id)sender {
    [aTextBox resignFirstResponder];
}

回答6:

Swift version, this works in combination with other elements (like a UIButton or another UITextField):

override func viewDidLoad() {
    super.viewDidLoad()

    let tapper = UITapGestureRecognizer(target: self, action:#selector(endEditing))
    tapper.cancelsTouchesInView = false
    view.addGestureRecognizer(tapper)
}

回答7:

How about this: I know this is an old post. It might help someone :)

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {  
    NSArray *subviews = [self.view subviews];
    for (id objects in subviews) {
        if ([objects isKindOfClass:[UITextField class]]) {
            UITextField *theTextField = objects;
            if ([objects isFirstResponder]) {
                [theTextField resignFirstResponder];
            }
        } 
    }
}

回答8:

This is a good generic solution:

Objective-C:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [self.view endEditing:YES];    
}

Swift:

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    self.view.endEditing(true)
}

Based on @icodebuster solution: https://stackoverflow.com/a/18756253/417652

回答9:

I think the easiest (and best) way to do this is to subclass your global view and use hitTest:withEvent method to listen to any touch. Touches on keyboard aren\'t registered, so hitTest:withEvent is only called when you touch/scroll/swipe/pinch... somewhere else, then call [self endEditing:YES].

This is better than using touchesBegan because touchesBegan are not called if you click on a button on top of the view. It is better than UITapGestureRecognizer which can\'t recognize a scrolling gesture for example. It is also better than using a dim screen because in a complexe and dynamic user interface, you can\'t put dim screen everywhere. Moreover, it doesn\'t block other actions, you don\'t need to tap twice to select a button outside (like in the case of a UIPopover).

Also, it\'s better than calling [textField resignFirstResponder], because you may have many text fields on screen, so this works for all of them.

回答10:

Swift 4

Setup your UIViewController with this extension method once e.g in viewDidLoad:

override func viewDidLoad() {
    super.viewDidLoad()
    self.setupHideKeyboardOnTap()
}

and the keyboard will be dismissed even by tapping on the NavigationBar.

import UIKit
extension UIViewController {
    /// Call this once to dismiss open keyboards by tapping anywhere in the view controller
    func setupHideKeyboardOnTap() {
        self.view.addGestureRecognizer(self.endEditingRecognizer())
        self.navigationController?.navigationBar.addGestureRecognizer(self.endEditingRecognizer())
    }

    /// Dismisses the keyboard from self.view
    private func endEditingRecognizer() -> UIGestureRecognizer {
        let tap = UITapGestureRecognizer(target: self.view, action: #selector(self.view.endEditing(_:)))
        tap.cancelsTouchesInView = false
        return tap
    }
}

回答11:

You can do this using the Storyboard in XCode 6 and above:

Create the action to hide the keyboard

Add this to the header file of the class used by your ViewController:

@interface TimeDelayViewController : UIViewController <UITextFieldDelegate>

- (IBAction)dissmissKeyboardOnTap:(id)sender;

@end

Then add this to the implementation file of the same ViewController:

- (IBAction)dissmissKeyboardOnTap:(id)sender{
    [[self view]endEditing:YES];
}

This will now be one of the \'Received Actions\' for your storyboard scene (i.e. ViewController):

Hook up the action to the user event

Now you need to hook up this action to the user gesture of touching off the keyboard.

Important - You need to convert the \'UIView\' that\'s contained in your storyboard to a UIControl, so it can receive events. Select the view from your View Controller Scene hierarchy:

...and change its class:

Now drag from the small circle next to the \'received action\' for your scene, onto an \'empty\' part of your scene (actually you\'re dragging the \'Received Action\' to the UIControl). You\'ll be shown a selection of events that you can hook up your action to:

Select the \'touch up inside\' option. You\'ve now hooked the IBAction you created to a user action of touching off the keyboard. When the user taps off the keyboard, it will now be hidden.

(NOTE: To hook the action to the event, you can also drag from the received action directly onto the UIControl in your View Controllers hierarchy. It\'s displayed as \'Control\' in the hierarchy.)

回答12:

This must be the easiest way to hide your keyboard by touching outside :

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [self.view endEditing:YES];    
}

(from How to dismiss keyboard when user tap other area outside textfield?)

回答13:

If I got you right you want to resign keyboard wile tapping on outSide of textfield but you don\'t have reference of your textfield.

Try this;

• Take global textField, lets call it reftextField

• Now in textFieldDidBeginEditing set referenced text field to

  - (void) textFieldDidBeginEditing:(UITextField *)textField{
      reftextField = textField;
  }
  

• Now you can happily use on any button clock, (adding a transparent button on begin editing recomended)

  - (void)dismissKeyboard {
        [reftextField resignFirstResponder];
  }
  

• Or for resigning done button try this.

  //for resigning on done button    
  - (BOOL) textFieldShouldReturn:(UITextField *)textField{
      [textField resignFirstResponder];
      return YES;
  }
  

回答14:

If the view is embedded at all in a UIScrollView then you can use the following:

tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;
tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;

The former will animate the keyboard off screen when the table view is scrolled and the later will hide the keyboard like the stock Messages app.

Note that these are are available on iOS 7.0 or above.

回答15:

Just to add to the list here my version of how to dismiss a keyboard on outside touch.

viewDidLoad:

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.view addGestureRecognizer:singleTap];

Anywhere:

-(void)handleSingleTap:(UITapGestureRecognizer *)sender{
    [textFieldName resignFirstResponder];
    puts(\"Dismissed the keyboard\");
}

回答16:

Plenty of great answers here about using UITapGestureRecognizer--all of which break UITextField\'s clear (X) button. The solution is to suppress the gesture recognizer via its delegate:

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    BOOL touchViewIsButton = [touch.view isKindOfClass:[UIButton class]];
    BOOL touchSuperviewIsTextField = [[touch.view superview] isKindOfClass:[UITextField class]];
    return !(touchViewIsButton && touchSuperviewIsTextField);
}

It\'s not the most robust solution but it works for me.

回答17:

You can create category for the UiView and override the touchesBegan meathod as follows.

It is working fine for me.And it is centralize solution for this problem.

#import \"UIView+Keyboard.h\"
@implementation UIView(Keyboard)

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [self.window endEditing:true];
    [super touchesBegan:touches withEvent:event];
}
@end

回答18:

Swift version of @Jensen2k\'s answer:

let gestureRecognizer : UITapGestureRecognizer = UITapGestureRecognizer.init(target: self, action: \"dismissKeyboard\")
self.view.addGestureRecognizer(gestureRecognizer)

func dismissKeyboard() {
    aTextField.resignFirstResponder()
}

One liner

self.view.addTapGesture(UITapGestureRecognizer.init(target: self, action: \"endEditing:\"))

回答19:

I used Barry example for my new development. It worked great! but i had to include a slightly change, required to dismiss the keyboard only for the textfield being edited.

So, I added to Barry example the following:

- (void) textFieldDidBeginEditing:(UITextField *)textField
{
    _textBeingEdited = textField;
}
-(void) textFieldDidEndEditing:(UITextField *)textField
{
    _textBeingEdited = nil;
}

Also, I changed hideKeyboard method as follows:

- (IBAction)hideKeyboard:(id)sender
{
    // Just call resignFirstResponder on all UITextFields and UITextViews in this VC
    // Why? Because it works and checking which one was last active gets messy.
    //UITextField * tf = (UITextField *) sender;
    [_textBeingEdited resignFirstResponder];
}

回答20:

One of the most easiest and shortest way is to add this code to your viewDidLoad

[self.view addGestureRecognizer:[[UITapGestureRecognizer alloc]
                                     initWithTarget:self.view
                                     action:@selector(endEditing:)]];

回答21:

Swift 4 oneliner

view.addGestureRecognizer(UITapGestureRecognizer(target: view, action: #selector(UIView.endEditing(_:))))

回答22:

Send message resignFirstResponder to the textfiled that put it there. Please see this post for more information.

回答23:

This works

In this example, aTextField is the only UITextField.... If there are others or UITextViews, there\'s a tiny bit more to do.

// YourViewController.h
// ...
@interface YourViewController : UIViewController /* some subclass of UIViewController */ <UITextFieldDelegate> // <-- add this protocol
// ...
@end

// YourViewController.m

@interface YourViewController ()
@property (nonatomic, strong, readonly) UITapGestureRecognizer *singleTapRecognizer;
@end
// ...

@implementation
@synthesize singleTapRecognizer = _singleTapRecognizer;
// ...

- (void)viewDidLoad
{
    [super viewDidLoad];
    // your other init code here
    [self.view addGestureRecognizer:self.singleTapRecognizer];

{

- (UITapGestureRecognizer *)singleTapRecognizer
{
    if (nil == _singleTapRecognizer) {
        _singleTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapToDismissKeyboard:)];
        _singleTapRecognizer.cancelsTouchesInView = NO; // absolutely required, otherwise \"tap\" eats events.
    }
    return _singleTapRecognizer;
}

// Something inside this VC\'s view was tapped (except the navbar/toolbar)
- (void)singleTapToDismissKeyboard:(UITapGestureRecognizer *)sender
{
    NSLog(@\"singleTap\");
    [self hideKeyboard:sender];
}

// When the \"Return\" key is pressed on the on-screen keyboard, hide the keyboard.
// for protocol UITextFieldDelegate
- (BOOL)textFieldShouldReturn:(UITextField*)textField
{
    NSLog(@\"Return pressed\");
    [self hideKeyboard:textField];
    return YES;
}

- (IBAction)hideKeyboard:(id)sender
{
    // Just call resignFirstResponder on all UITextFields and UITextViews in this VC
    // Why? Because it works and checking which one was last active gets messy.
    [aTextField resignFirstResponder];
    NSLog(@\"keyboard hidden\");
}

回答24:

I tried many of the responses here and had no luck. My tap gesture recognizer was always causing my UIButtons to not respond when tapped, even when I set the cancelsTouchesInView property of the gesture recognizer to NO.

This is what eventually solved the issue:

Have an ivar:

UITapGestureRecognizer *_keyboardDismissGestureRecognizer;

When a text field begins editing, set the gesture recognizer:

- (void) textFieldDidBeginEditing:(UITextField *)textField
{
    if(_keyboardDismissGestureRecognizer == nil)
    {
        _keyboardDismissGestureRecognizer = [[[UITapGestureRecognizer alloc]
                                       initWithTarget:self
                                       action:@selector(dismissKeyboard)] autorelease];
        _keyboardDismissGestureRecognizer.cancelsTouchesInView = NO;

        [self.view addGestureRecognizer:_keyboardDismissGestureRecognizer];
    }
}

Then the trick is in how you set up the dismissKeyboard method:

- (void) dismissKeyboard
{
    [self performSelector:@selector(dismissKeyboardSelector) withObject:nil afterDelay:0.01];
}

- (void) dismissKeyboardSelector
{
    [self.view endEditing:YES];

    [self.view removeGestureRecognizer:_keyboardDismissGestureRecognizer];
    _keyboardDismissGestureRecognizer = nil;
}

I guess there\'s just something about getting the dismissKeyboardSelector execution out of the touch handling execution stack...

回答25:

- (void)viewDidLoad
{
    [super viewDidLoad]; 

UITapGestureRecognizer *singleTapGestureRecognizer = [[UITapGestureRecognizer alloc]
                                                          initWithTarget:self
                                                          action:@selector(handleSingleTap:)];
    [singleTapGestureRecognizer setNumberOfTapsRequired:1];
    [singleTapGestureRecognizer requireGestureRecognizerToFail:singleTapGestureRecognizer];

    [self.view addGestureRecognizer:singleTapGestureRecognizer];
}

- (void)handleSingleTap:(UITapGestureRecognizer *)recognizer
{
    [self.view endEditing:YES];
    [textField resignFirstResponder];
    [scrollView setContentOffset:CGPointMake(0, -40) animated:YES];

}

回答26:

Add this code in your ViewController.m file :

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [self.view endEditing:YES];
}

回答27:

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {

    if let touch = touches.first{
     view.endEditing(true)

     }
}

回答28:

In this case, there can be use ScrollView and added to TextField in ScrollView and I want Tap the ScrollView and View then Dismiss the Keyboard. I tried to create sample code just in case. Like this,

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var scrollView: UIScrollView!
    @IBOutlet weak var textField: UITextField!

    override func viewDidLoad() {
        super.viewDidLoad()

        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(ViewController.tap(_:)))
        view.addGestureRecognizer(tapGesture)
        // Do any additional setup after loading the view, typically from a nib.
    }
    func tap(gesture: UITapGestureRecognizer) {
        textField.resignFirstResponder()
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

Your Storyboard Look at that Just Like.

回答29:

You can use UITapGestureRecongnizer method for dismissing keyboard by clicking outside of UITextField. By using this method whenever user will click outside of UITextField then keyboard will get dismiss. Below is the code snippet for using it.

 UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]
                                   initWithTarget:self
                                   action:@selector(dismissk)];

    [self.view addGestureRecognizer:tap];


//Method
- (void) dismissk
{
    [abctextfield resignFirstResponder];
    [deftextfield resignFirstResponder];

}

回答30:

• Set text fields delegate in view did load:

  override func viewDidLoad() 
  {
    super.viewDidLoad()
    self.userText.delegate = self
  }
  

• Add this Function:

  func textFieldShouldReturn(userText: UITextField!) -> Bool 
  {
   userText.resignFirstResponder()
   return true;
  }