Question

我目前正在创建一个包含UITextFields的应用程序，并且它们已经按预期工作但是当我最近测试我的应用程序时，我注意到在我按下UITextField后键盘没有被忽略。当我点击离开或按下返回时，它的行为像正常解雇一样，但现在我无法做任何让它解雇的事情？

这是我当前的ViewController代码：

import UIKit

class CreateNewBudgetVC: UIViewController {
    @IBOutlet weak var grossIncomeVal: UITextField!
    @IBOutlet weak var locationVal: UITextField!
    @IBOutlet weak var federalExptVal: UITextField!
    @IBOutlet weak var stateExptVal: UITextField!
    @IBOutlet weak var deductionsList: UITableView!

    @IBAction func cancelPressed(_ sender: Any) {
        performSegue(withIdentifier: "CancelSegue", sender: self)
    }

    @IBAction func generateBudgetPressed(_ sender: Any) {
        let budget = Budget(grossIncome: Int(grossIncomeVal.text!)!)
        performSegue(withIdentifier: "GenerateSegue", sender: budget)
    }

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if let budget = sender as? Budget, let destination = segue.destination as? BudgetVC {
            destination.budget = budget
        }
    }
}

Answer 1

只需使用

self.view.endEditing(true)

在上面定义的操作方法中，您要关闭键盘。

例如

    @IBAction func cancelPressed(_ sender: Any) {
        self.view.endEditing(true)
        performSegue(withIdentifier: "CancelSegue", sender: self)
    }

如果您想在键盘的return tap中返回键盘，请使用此

class ViewController: UIViewController,UITextFieldDelegate

并实现委托方法

func textFieldShouldReturn(_ textField: UITextField) -> Bool {   //delegate method
   textField.resignFirstResponder()
   return true
}

但请勿忘记分配delegate to textfield

yourTextField.delegate = self in `viewDidLoad`

如果您想在外面点按时关闭键盘，只需为您的视图指定一个点击手势

在ViewDidload中

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

实施解雇功能

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

UITextField不会解雇

1 个答案: