Question

我确信这并不困难，但我无法使用textview而不是文本字段查找有关如何使用return / done键解除键盘的信息。这是我到目前为止所尝试的内容（适用于文本字段。）

非常感谢您的任何帮助！

//  PostTravelQuestion.swift

class PostTravelQuestion: UIViewController, UITextViewDelegate {

    @IBAction func closepostpage(sender: AnyObject) {
        dismissViewControllerAnimated(true, completion: nil)
    }


    @IBOutlet var postquestion: UITextView!


    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        postquestion.delegate = self
    }

    self addDoneToolBarToKeyboard:self.textView


    /*func textViewShouldEndEditing(textView: UITextView) -> Bool {

        textView.resignFirstResponder()

        return true
    }*/

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



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


    func textViewShouldReturn(textView: UITextView!) -> Bool {
        self.view.endEditing(true);
        return true;
    }
}

Answer 1

这对我有用：

import UIKit

class ViewController: UIViewController, UITextViewDelegate {


    @IBOutlet weak var textView: UITextView!

    override func viewDidLoad() {
        super.viewDidLoad()

        textView.delegate = self
    }

    /* Updated for Swift 4 */
    func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
        if(text == "\n") {
            textView.resignFirstResponder()
            return false
        }
        return true
    }

    /* Older versions of Swift */
    func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
        if(text == "\n") {
            textView.resignFirstResponder()
            return false
        }
        return true
    }

}

Answer 2

将UITextViewDelegate添加到您的班级，然后在viewDidLoad中设置textView或textField的委托。应该看起来像这样：

// in viewDidLoad
textField.delegate = self
textView.delegate = self

Swift 3

// hides text views
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
    if (text == "\n") {
        textView.resignFirstResponder()
        return false
    }
    return true
}
// hides text fields
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
    if (string == "\n") {
        textField.resignFirstResponder()
        return false
    }
    return true
}

Swift 2.0

以下语法已针对Swift 1.2＆amp; amp; Swift 2.0

func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
    if(text == "\n") {
        textView.resignFirstResponder()
        return false
    }
    return true
}

Answer 3

下面的代码会在点击return response()->json(['Collection'=>$myCollection]);上的return / done键时解除键盘。

在Swift 3.0中

UITextView

在Swift 2.2中

import UIKit

class ViewController: UIViewController, UITextViewDelegate {

@IBOutlet var textView: UITextView!

override func viewDidLoad() {
    super.viewDidLoad()

    textView.delegate = self
}

func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool
{
    if(text == "\n")
    {
        view.endEditing(true)
        return false
    }
    else
    {
        return true
    }
}

Answer 4

要在Swift 4中隐藏文本框或文本视图之外的任何部分的键盘触摸，请使用ViewController类中的以下代码：

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

致谢

Answer 5

使用UITextView扩展名做到这一点的最简单，最佳方法。
信用： http://www.swiftdevcenter.com/uitextview-dismiss-keyboard-swift/
您的ViewController类

class ViewController: UIViewController {

    @IBOutlet weak var myTextView: UITextView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // 1
        self.myTextView.addDoneButton(title: "Done", target: self, selector: #selector(tapDone(sender:)))
    }
    // 2
    @objc func tapDone(sender: Any) {
        self.view.endEditing(true)
    }
}

添加 UITextView扩展

extension UITextView {

    func addDoneButton(title: String, target: Any, selector: Selector) {

        let toolBar = UIToolbar(frame: CGRect(x: 0.0,
                                              y: 0.0,
                                              width: UIScreen.main.bounds.size.width,
                                              height: 44.0))//1
        let flexible = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)//2
        let barButton = UIBarButtonItem(title: title, style: .plain, target: target, action: selector)//3
        toolBar.setItems([flexible, barButton], animated: false)//4
        self.inputAccessoryView = toolBar//5
    }
}

有关更多详细信息：visit full documentation

使用uiTextView关闭键盘

5 个答案:

Swift 3

Swift 2.0