iOS-触摸UITextField外部时关闭键盘

我想知道当用户触摸之外时如何使键盘消失UITextField。

您需要添加一个UITapGestureRecogniser并将其分配给视图，然后UITextField在其选择器上调用resign第一响应者。

编码：

在viewDidLoad中

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

[self.view addGestureRecognizer:tap];

在dismissKeyboard中：

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

（哪里aTextField是负责键盘的文本字段）

Swift 3版本看起来像这样

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

用于关闭键盘

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

我混了几个答案。

使用在执行期间初始化的ivar viewDidLoad:

UIGestureRecognizer *tapper;

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

取消当前正在编辑的内容：

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

检查一下，这将是最简单的方法，

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

要么

该库将处理包括滚动条自动滚动，点击空间以隐藏键盘等。

https://github.com/michaeltyson/TPKeyboard避免

我看到有些人在使用该UITapGestureRecognizer方法时遇到问题。在保持原样的现有按钮的点击行为不变的情况下实现此功能的最简单方法是，在@ Jensen2k的答案中仅添加一行：

[tap setCancelsTouchesInView:NO];

这使我现有的按钮仍然可以使用@Dmitry Sitnikov的方法来工作。

property在这里阅读有关内容（搜索CancelsTouchesInView）：UIGestureRecognizer类参考

我不确定它如何与滚动条一起使用，因为我看到一些问题，但希望其他人可能会遇到与我相同的情况。

最好使您UIView的实例成为实例UIControl（在界面生成器中），然后将其TouchUpInside事件连接到dismissKeyboard方法。该IBAction方法如下所示：

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

斯威夫特4

设置你的UIViewController这种扩展方法一旦如viewDidLoad：

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

并且即使轻按键盘也会关闭键盘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
    }
}

Swift版本，可与其他元素（例如UIButton或UITextField）结合使用：

override func viewDidLoad() {
    super.viewDidLoad()

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

怎么样：我知道这是一个旧帖子。它可能会帮助某人:)

- (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];
            }
        } 
    }
}

这是一个很好的通用解决方案：

目标C：

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

迅速：

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

基于@icodebuster解决方案：https ://stackoverflow.com/a/18756253/417652

斯威夫特4 oneliner

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

我认为最简单（也是最好）的方法是对全局视图进行子类化，并使用hitTest:withEvent方法来监听任何触摸。键盘上的触摸未注册，因此仅当您在其他地方触摸/滚动/滑动/捏...时才调用hitTest：withEvent [self endEditing:YES]。

这比使用更好，touchesBegan因为touchesBegan如果单击视图顶部的按钮不会被调用。例如，它比UITapGestureRecognizer不能识别滚动手势要好。它也比使用暗屏更好，因为在复杂而动态的用户界面中，无法将暗屏无处不在。此外，它不会阻止其他操作，您无需点按两次即可选择外部的按钮（例如在的情况下UIPopover）。

另外，它比调用更好[textField resignFirstResponder]，因为屏幕上可能有许多文本字段，所以这对所有这些都有效。

这必须是通过触摸外部来隐藏键盘的最简单方法：

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

（来自用户点击文本框外的其他区域时如何关闭键盘？）

如果视图完全嵌入在中，UIScrollView则可以使用以下方法：

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

滚动表视图时，前者将在屏幕外为键盘设置动画，而后者将像股票Messages应用一样隐藏键盘。

请注意，这些功能在iOS 7.0或更高版本上可用。

您可以使用XCode 6及更高版本中的情节提要进行此操作：

创建动作以隐藏键盘

将此添加到您的ViewController使用的类的头文件中：

@interface TimeDelayViewController : UIViewController <UITextFieldDelegate>

- (IBAction)dissmissKeyboardOnTap:(id)sender;

@end

然后将其添加到同一ViewController的实现文件中：

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

现在，这将是故事板场景（即ViewController）的“已接收动作”之一：

将动作与用户事件挂钩

现在，您需要将此操作与触发键盘的用户手势联系起来。

重要提示-您需要将情节提要中包含的“ UIView”转换为UIControl，以便它可以接收事件。从“视图控制器场景”层次结构中选择视图：

...并更改其类别：

现在，从场景的“已接收动作”旁边的小圆圈拖动到场景的“空”部分（实际上是将“已接收动作”拖动到UIControl）。系统将显示一系列事件，您可以将其关联到以下操作：

选择“内部润饰”选项。现在，您已经将创建的IBAction钩接到了用户触摸键盘的操作上。当用户点击键盘时，它将被隐藏。

（注意：要将动作与事件挂钩，也可以将接收到的动作直接拖到View Controllers层次结构中的UIControl上。在层次结构中显示为“ Control”。）

如果我没错，您希望在外部轻按辞职键盘，textfield但您没有参考资料textfield。

尝试这个;

• 以全局textField命名 reftextField

• 现在在textFieldDidBeginEditing设置引用文本字段为

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

• 现在您可以愉快地在任何按钮时钟上使用（建议在开始编辑时添加透明按钮）

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

• 或为完成辞职按钮尝试此操作。

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

只是为了在此处添加我的版本，该版本介绍了如何在外部触摸时关闭键盘。

viewDidLoad：

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

任何地方：

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

这里有很多有关使用-的好答案UITapGestureRecognizer，所有这些都打破了UITextFieldclear（X）按钮。解决方案是通过其委托抑制手势识别器：

- (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);
}

这不是最可靠的解决方案，但对我有用。

您可以如下创建UiView的类别并覆盖touchesBegan肉类。

它对我来说很好用，并且是针对此问题的集中解决方案。

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

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

@ Jensen2k的Swift版本的答案：

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

func dismissKeyboard() {
    aTextField.resignFirstResponder()
}

一支班轮

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

我以Barry为例进行新开发。效果很好！但是我必须稍作改动，要求仅关闭正在编辑的文本字段的键盘。

因此，我在Barry示例中添加了以下内容：

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

另外，我更改了hideKeyboard方法，如下所示：

- (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];
}

最简单，最快捷的方法之一就是将此代码添加到您的 viewDidLoad

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

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

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

     }
}

我在这里尝试了许多回复，但没有运气。UIButtons即使cancelsTouchesInView将手势识别器的属性设置为NO ，我的轻击手势识别器也总是导致我在点击时不响应。

这是最终解决问题的方法：

拥有一个ivar：

UITapGestureRecognizer *_keyboardDismissGestureRecognizer;

当文本字段开始编辑时，请设置手势识别器：

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

        [self.view addGestureRecognizer:_keyboardDismissGestureRecognizer];
    }
}

然后，诀窍在于如何设置dismissKeyboard方法：

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

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

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

我想这只是将dismissKeyboardSelector执行从触摸处理执行堆栈中移出的事情...

发送消息resignFirstResponder到放置在那里的文本文件。请参阅此帖子以获取更多信息。

这有效

在此示例中，aTextField是唯一的UITextField。

// 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");
}

- (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];

}

将此代码添加到您的ViewController.m文件中：

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

在这种情况下，可以使用ScrollView并将其添加到TextFieldScrollView中，我想要点击ScrollView和，然后关闭键盘。我试图创建示例代码以防万一。像这样，

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.
    }
}

您的情节提要板就这样看。

您可以通过在UITextField外部单击来使用UITapGestureRecongnizer方法关闭键盘。通过使用此方法，每当用户在UITextField之外单击时，键盘将被关闭。下面是使用它的代码片段。

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

    [self.view addGestureRecognizer:tap];


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

}

• 在视图中设置文本字段委托确实加载了：

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

• 添加此功能：

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