如果所有UITextField都被填充，并且其中一个具有Int值，则启用按钮

Question

我在将textField与我的shouldChangeCharactersIn函数关联时遇到问题，并且此textField应该包含Int值。第一个textField应该包含字符串值，第二个应该包含Int值。仅当textFields用正确的类型填充时，才应启用Confirm按钮。那是我的应用程序：

和代码：

import UIKit

class LoginViewController: UIViewController, UITextFieldDelegate {

var av = ActualValues()
var statsVC = StatsViewController()
var closureBlock: (() -> Void)?

@IBOutlet weak var idTextField: UITextField!
@IBOutlet weak var idCheckButton: UIButton!
@IBOutlet weak var segmentedControl: UISegmentedControl!
@IBOutlet weak var targetsTextField: UITextField!

override func viewDidLoad() {
    super.viewDidLoad()

    statsVC.allRunsFunc()
    idTextField.delegate = self
    idCheckButton.isEnabled = false
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    av.shift = 1
    allRunsFunc()
}

@IBAction func idCheckButtonDidPress(_ sender: UIButton) {
    av.id = idTextField.text!
    av.databaseID = String(runs + 1)
    av.target = targetsTextField.text!
    closureBlock?()
    if let delegate = self.summaryButtonIsEnabledDelegate {
        delegate.toggleSummaryButton()
    }

    self.dismiss(animated: true, completion: nil)
}

@IBAction func segmentedControlChanged(_ sender: UISegmentedControl) {
    switch segmentedControl.selectedSegmentIndex {
    case 0:
        av.shift = 1
    case 1:
        av.shift = 2
    case 2:
        av.shift = 3
    default:
        av.shift = 1
    }
}

func configureID(model: ActualValues) {
    av = model
}

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String, int: Int) -> Bool {
   let text = (idTextField.text! as NSString).replacingCharacters(in: range, with: string)
   if text.isEmpty {
      idCheckButton.isEnabled = false
   } else {
      idCheckButton.isEnabled = true
   }

   return true
}

}

我应该在该功能中添加什么？

Answer 1

尝试创建函数调用validator()。您所有的textField应该添加

textField.addTarget(self, action: #selector(self.textFieldDidChange(_:)), for: .editingChanged)

@objc func textFieldDidChange(_ textField: UITextField) {
        // TODO : Validate all of your textField value here
}