简单的Swift 3解决方案: 将这个函数添加到以文本字段为特征的视图控制器中:

@IBAction func textField(_ sender: AnyObject) {
    self.view.endEditing(true);
}

然后打开你的助理编辑器，确保你的主。Storyboard位于视图的一侧，所需的视图controller.swift文件位于另一侧。单击一个文本字段，然后从右边的实用工具面板“显示连接检查器”选项卡中选择。从“Did End on Exit”控件拖动到swift文件中的上述函数。重复该场景中的任何其他文本字段，并链接到相同的函数。

Add UITextFieldDelegate to the class declaration: class ViewController: UIViewController, UITextFieldDelegate Connect the textfield or write it programmatically @IBOutlet weak var userText: UITextField! set your view controller as the text fields delegate in view did load: override func viewDidLoad() { super.viewDidLoad() self.userText.delegate = self } Add the following function func textFieldShouldReturn(userText: UITextField!) -> Bool { userText.resignFirstResponder() return true; } with all this your keyboard will begin to dismiss by touching outside the textfield aswell as by pressing return key.

我建议从RSC初始化类:

import Foundation
import UIKit

// Don't forget the delegate!
class ViewController: UIViewController, UITextFieldDelegate {

required init(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

@IBOutlet var myTextField : UITextField?

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

    self.myTextField.delegate = self;
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

func textFieldShouldReturn(textField: UITextField!) -> Bool {
    self.view.endEditing(true);
    return false;
}

}

不需要委派

你可以从UITextField为“Primary action triggers”创建一个动作出口，并在传入的sender参数上辞职第一响应者:

@IBAction func done(_ sender: UITextField) {
    sender.resignFirstResponder()
}

超级简单。

(感谢斯科特·史密斯60秒的视频，让我知道了这一点:https://youtu.be/v6GrnVQy7iA)

@RSC

对我来说，Xcode Version 6.2 (6C86e)的关键添加是override func viewDidLoad()

 self.input.delegate = self;

我试着用返回键让它工作了几个小时，直到我找到了你的帖子，RSC。谢谢你！

此外，如果你想隐藏键盘，如果你触摸屏幕上的其他地方:

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

你应该连接UITextfied和一个视图控制器的委托来调用这个函数