Ios 触摸UITextField（swift）之外的任何位置时，如何关闭键盘？

我正在处理一个有UIViewController的项目，在视图控制器上有一个UIScrollView，在scrollview上有一个UITextField。 这样地： 在文本字段中键入一些文本并点击文本字段外的任何位置后，我试图关闭键盘并隐藏它。 我尝试了以下代码：

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

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    self.view.endEditing(true)
}

override func viewDidLoad（）{
super.viewDidLoad（）
self.textField.delegate=self；
}
覆盖功能触摸开始（触摸：设置，withEvent事件：UIEvent？）{
self.view.endEditing（true）
}

当我点击scrollview外部时，它对我有效，但当我点击scrollview时，什么都不会发生，键盘也不会隐藏

在文本字段外的任何地方点击时，是否有办法关闭键盘？

---

谢谢

在这种情况下，有一种选择是UITAPPORATE。我试图创建示例代码以防万一。像这样,

class ViewController: UIViewController {

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

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        let tapGesture = UITapGestureRecognizer(target: self, action: "tap:")
        view.addGestureRecognizer(tapGesture)
    }

    func tap(gesture: UITapGestureRecognizer) {
        textField.resignFirstResponder()
    }
}

---

我在Obj-C中创建了此方法，无论用户当前在何处键入，该方法都会隐藏键盘：

//call this method
+ (void)hideKeyboard {
    //grab the main window of the application
    UIWindow *window = [UIApplication sharedApplication].keyWindow;
    //call our recursive method below
    [self resignResponderForView:window];
}

//our recursive method
+ (void)resignResponderForView:(UIView *)view {
    //resign responder from this view
    //If it has the keyboard, then it will hide the keyboard
    [view resignFirstResponder];
    //if it has no subviews, then return back up the stack
    if (view.subviews.count == 0)
        return;
    //go through all of its subviews
    for (UIView *subview in view.subviews) {
        //recursively call the method on those subviews
        [self resignResponderForView:subview];
    }
}

---

我希望这能转化为Swift，并且有意义。它可以在应用程序中的任何位置调用，并且无论您使用的是哪种VC或任何东西，它都会隐藏键盘。

转到键盘类型，然后选择默认值或需要文本字段的任何内容。然后重写一个方法，你想怎么叫就怎么叫，我通常叫它touchingsbegins。下面是您忘记添加的内容

super.touchingBegins(touches, withEvent: event)
 }

---

试试这个，它已经过测试并且可以工作了：

适用于Swift 3.0/4.0

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    self.view.endEditing(true)
}

override func touchsbegind（touch:Set，带有事件：UIEvent？）{
self.view.endEditing（true）
}

适用于较老的Swift

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent) {
    self.view.endEditing(true)
}

override func touchsbegined（touchs:Set，withEvent-event:UIEvent）{
self.view.endEditing（true）
}

我也遇到了同样的问题，我终于解决了

在故事板中设置TapGestureRecognitor，然后在ViewController中设置插座

@IBOutlet var tapGesture: UITapGestureRecognizer!

@IBAction func DismissKeyboard(sender: UITapGestureRecognizer)
{
 self.view.endEditing(true)
} 

然后在ViewController中设置iAction

@IBOutlet var tapGesture: UITapGestureRecognizer!

@IBAction func DismissKeyboard(sender: UITapGestureRecognizer)
{
 self.view.endEditing(true)
} 

将这些行添加到viewDidLoad方法中

override func viewDidLoad()
{
    super.viewDidLoad()
    self.view.addGestureRecognizer(tapGesture)
}

它应该会起作用

---

希望这会有帮助

为Swift 4编辑

编辑：添加了

@objc

。虽然这不是性能的最佳选择，但在没有更好的解决方案之前，这里的一个实例不应该导致太多问题

当需要与GestureRecognizer后面的项目交互时，编辑以修复此问题。

class ViewController: UIViewController {

  override func viewDidLoad() {
    super.viewDidLoad()

    //Key borad dismiss
    let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "dismissKeyboard")
    tap.cancelsTouchesInView = false
    view.addGestureRecognizer(tap)
  }

 //Key board hide on outside the textfield
 @objc func dismissKeyboard() {
    //Causes the view (or one of its embedded text fields) to resign the first responder status.
    view.endEditing(true)
  }
}

编辑：感谢@Rao指出这一点。添加了

tap.cancelsTouchesInView=false

这将有助于您拥有多个

UITextView

或

UITextField

创建视图控制器的扩展。对我来说，这比尝试使用

.resignFirstResponder（）

在视图中调用

self.setupToHideKeyboardOnTapOnView（）

每次触摸不同的文本字段都会关闭键盘或使用

辞职第一响应程序

extension UIViewController
{
    func setupToHideKeyboardOnTapOnView()
    {
        let tap: UITapGestureRecognizer = UITapGestureRecognizer(
            target: self,
            action: #selector(UIViewController.dismissKeyboard))

        tap.cancelsTouchesInView = false
        view.addGestureRecognizer(tap)
    }

    @objc func dismissKeyboard()
    {
        view.endEditing(true)
    }
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
 UITouch *touch = [touches anyObject];
 if(![touch.view isMemberOfClass:[UITextField class]]) {
     [touch.view endEditing:YES];
 }
}

---

当在输入区域外触摸任意数量的输入项时，此功能起作用

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
        self.view.endEditing(true)
    }

覆盖函数触摸开始（触摸：设置，withEvent事件：UIEvent？）{
self.view.endEditing（true）
}

引入轻触手势识别器，并为其设置和操作

使用以下代码：

---

nameofyourtextfield.resignfirstresponder（）

使用ScrollView的Swift 3工作解决方案

class ViewController: UIViewController {

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

    override func viewDidLoad() {
        super.viewDidLoad()

        // The next line is the crucial part
        // The action is where Swift 3 varies from previous versions
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.tap(gesture:)))
        self.view.addGestureRecognizer(tapGesture)
    }

    func tap(gesture: UITapGestureRecognizer) {
        textField.resignFirstResponder()
    }
}

另一个是关于这个问题的，我引用和使用的。公认的答案在Swift 3中不再有效。当前选择的答案应为以下答案。

详细信息

• 代码10.2.1（10E1001），Swift 5

解决方案1

解决方案1的使用。全样本 解决方案2 类TapGestureRecognitor

扩展UIView

解决方案2的使用 溶液2完整样品 看看这个

override func viewDidLoad() {
    var tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.handleTap))
    self.view.userInteractionEnabled = true
    self.view.addGestureRecognizer(tapGesture)
}

那么您的点击处理程序是

  func handleTap(sender: UITapGestureRecognizer) {
    self.view.endEditing(true)
}

斯威夫特3

override func viewDidLoad() {
    super.viewDidLoad()
    self.view.addGestureRecognizer(UITapGestureRecognizer(target: self.view, action: #selector(UIView.endEditing(_:))))
}

斯威夫特3

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    self.view.endEditing(true)
}

override func touchsbegind（touch:Set，带有事件：UIEvent？）{
self.view.endEditing（true）
}

//在swift 4中……它对我很有用

func setupKeyboardDismissRecognizer(){
    let tapRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(searchingActivity.dismissKeyboard))

    self.view.addGestureRecognizer(tapRecognizer)
}

    @objc func dismissKeyboard()
    {
        view.endEditing(true)
        searchTableView.isHidden = true
    }

//在Swift4中的viewDidLoad中调用此函数setupKeyboardDismissRecognizer（）

 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
            self.view.endEditing(true)
        }

override func touchsbegind（touch:Set，带有事件：UIEvent？）{
self.view.endEditing（true）
}

在Swift 4或5中，您可以像..

class ViewController: UIViewController {

  override func viewDidLoad() {
    super.viewDidLoad()

    //Key borad dismiss
    let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "dismissKeyboard")
    tap.cancelsTouchesInView = false
    view.addGestureRecognizer(tap)
  }

 //Key board hide on outside the textfield
 @objc func dismissKeyboard() {
    //Causes the view (or one of its embedded text fields) to resign the first responder status.
    view.endEditing(true)
  }
}

---

我在Swift 4中使用了以下代码，你可以试试这个

override func viewDidLoad() {
    super.viewDidLoad()

    // dismiss keyboard when tap outside a text field 
    let tapGestureRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(YourViewControllerName.dismissKeyboard))
    view.addGestureRecognizer(tapGestureRecognizer)
}

//Calls this function when the tap is recognized.
func dismissKeyboard() {
    //Causes the view (or one of its embedded text fields) to resign the first responder status.
    view.endEditing(true)
}

---

谢谢，成功了。但我还有一个问题，我有一个视图控制器，有5个文本字段。有没有一个好方法可以让他们不用逐个调用“resignFirstResponder”方法来执行相同的操作？另一个问题，当我点击文本字段外的任何位置时，有没有方法可以关闭键盘？例如，当我点击一个按钮时？@white hat能否将该问题作为另一个问题提问？@white hat将您的5个文本字段放入outlet集合中。然后创建一个dismissKeyboard方法，该方法迭代集合并在每个文本字段上调用resignFirstResponder。您可以从手势识别器和按钮操作调用此方法。@WhiteHat ViewController.View可以调用EndedTing在点击UIScrollViewNote时对我不起作用的方法此方法已更改为覆盖func ToucheSBegind（触摸：设置，withEvent事件：UIEvent？）迅速地2@WhiteHat请参阅上面的我的答案，了解与ScrollView配合使用的Swift 3答案此答案也适用于Swift 4！！谢谢。@Hemang正如@Rao在对已接受答案的评论中所述，当您有TableView时，您需要添加

tap.cancelsTouchesInView=false

。希望有帮助。你可能想退房。@JoeBlow我相信你错了。你应该辞去textField的第一响应者的职务。不是风景。我在当前项目中有这段代码，并在一个新项目中测试了它。更不用说，我的答案只是Pixyzehn.hey dev@Devbot10所写答案的更新版本——请毫不犹豫地将其编辑回你之前的版本。你知道，我可能很困惑

func setupKeyboardDismissRecognizer(){
    let tapRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(searchingActivity.dismissKeyboard))

    self.view.addGestureRecognizer(tapRecognizer)
}

    @objc func dismissKeyboard()
    {
        view.endEditing(true)
        searchTableView.isHidden = true
    }

 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
            self.view.endEditing(true)
        }

class ViewController: UIViewController {

  override func viewDidLoad() {
    super.viewDidLoad()

    //Key borad dismiss
    let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "dismissKeyboard")
    tap.cancelsTouchesInView = false
    view.addGestureRecognizer(tap)
  }

 //Key board hide on outside the textfield
 @objc func dismissKeyboard() {
    //Causes the view (or one of its embedded text fields) to resign the first responder status.
    view.endEditing(true)
  }
}

override func viewDidLoad() {
    super.viewDidLoad()

    // dismiss keyboard when tap outside a text field 
    let tapGestureRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(YourViewControllerName.dismissKeyboard))
    view.addGestureRecognizer(tapGestureRecognizer)
}

//Calls this function when the tap is recognized.
func dismissKeyboard() {
    //Causes the view (or one of its embedded text fields) to resign the first responder status.
    view.endEditing(true)
}