使用Swift触摸任意位置以关闭iOS键盘

本文翻译自：Close iOS Keyboard by touching anywhere using Swift

I have been looking all over for this but I can't seem to find it. 我一直在寻找这个，但似乎找不到。 I know how to dismiss the keyboard using Objective-C but I have no idea how to do that using Swift ? 我知道如何使用Objective-C消除键盘，但我不知道如何使用Swift做到这一点？ Does anyone know? 有人知道吗？

#1楼

参考：https://stackoom.com/question/1dERy/使用Swift触摸任意位置以关闭iOS键盘

#2楼

You can call 你可以打电话

resignFirstResponder()

on any instance of a UIResponder, such as a UITextField. 在UIResponder的任何实例（例如UITextField）上。 If you call it on the view that is currently causing the keyboard to be displayed then the keyboard will dismiss. 如果在当前导致键盘显示的视图上调用它，则键盘将关闭。

#3楼

Dash's answer is correct and preferred. 达世币的答案是正确的并且是首选。 A more "scorched earth" approach is to call view.endEditing(true) . 一种更“焦土”的方法是调用view.endEditing(true) 。 This causes view and all its subviews to resignFirstResponder . 这将导致view及其所有子视图为resignFirstResponder 。 If you don't have a reference to the view you'd like to dismiss, this is a hacky but effective solution. 如果您没有要关闭的视图的引用，那么这是一种骇人但有效的解决方案。

Note that personally I think you should have a reference to the view you'd like to have resign first responder. 请注意，我个人认为您应该参考要辞职的第一视图。 .endEditing(force: Bool) is a barbaric approach; .endEditing(force: Bool)是一种野蛮的方法； please don't use it. 请不要使用它。

#4楼

An answer to your question on how to dismiss the keyboard in Xcode 6.1 using Swift below: 有关以下有关如何使用Swift在Xcode 6.1中关闭键盘的问题的答案：

import UIKitclass ItemViewController: UIViewController, UITextFieldDelegate {@IBOutlet var textFieldItemName: UITextField!@IBOutlet var textFieldQt: UITextField!@IBOutlet var textFieldMoreInfo: UITextField!override func viewDidLoad() {super.viewDidLoad()textFieldItemName.delegate = selftextFieldQt.delegate = selftextFieldMoreInfo.delegate = self}.../*** Called when 'return' key pressed. return NO to ignore.*/func textFieldShouldReturn(textField: UITextField) -> Bool {textField.resignFirstResponder()return true}/*** Called when the user click on the view (outside the UITextField).*/override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {self.view.endEditing(true)}}

( Source of this information ). （此信息的来源）。

#5楼

override func viewDidLoad() {super.viewDidLoad()//Looks for single or multiple taps. let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "dismissKeyboard")//Uncomment the line below if you want the tap not not interfere and cancel other interactions.//tap.cancelsTouchesInView = false view.addGestureRecognizer(tap)
}//Calls this function when the tap is recognized.
@objc func dismissKeyboard() {//Causes the view (or one of its embedded text fields) to resign the first responder status.view.endEditing(true)
}

Here is another way to do this task if you are going to use this functionality in multiple UIViewControllers : 如果要在多个UIViewControllers使用此功能，则这是另一种执行此任务的方法：

// Put this piece of code anywhere you like
extension UIViewController {func hideKeyboardWhenTappedAround() {let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(UIViewController.dismissKeyboard))tap.cancelsTouchesInView = false            view.addGestureRecognizer(tap)}@objc func dismissKeyboard() {view.endEditing(true)}
}

Now in every UIViewController , all you have to do is call this function: 现在，在每个UIViewController ，您所需要做的就是调用此函数：

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

This function is included as a standard function in my repo which contains a lot of useful Swift Extensions like this one, check it out: https://github.com/goktugyil/EZSwiftExtensions 该函数作为标准函数包含在我的仓库中，其中包含许多类似这样的有用的Swift扩展，请查看： https : //github.com/goktugyil/EZSwiftExtensions

#6楼

You can also add a tap gesture recognizer to resign the keyboard. 您还可以添加轻击手势识别器以使键盘退出。 :D ：D

override func viewDidLoad() {super.viewDidLoad()// Do any additional setup after loading the view, typically from a nib.let recognizer = UITapGestureRecognizer(target: self, action: Selector("handleTap:"))backgroundView.addGestureRecognizer(recognizer)
}func handleTap(recognizer: UITapGestureRecognizer) {textField.resignFirstResponder()textFieldtwo.resignFirstResponder()textFieldthree.resignFirstResponder()println("tappped")
}

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使用Swift触摸任意位置以关闭iOS键盘

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