如果所有textField都被填充并且其中之一是Int SWIFT，则启用按钮

Question

我在将textField添加到我的“ shouldChangeCharactersIn”函数中时遇到问题，并且此textField应该为Int。第一个textField应该是String，第二个应该是Int。如果textFields用正确的类型填充，则应该启用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
}