Question

我试图使用实现了其委托功能的UITextField处理用户输入。

这是一个变量，我将其从情节提要拖动到我的viewController

class DailPadViewController: UIViewController, UITextFieldDelegate{

 @IBOutlet weak var numberTextField: UITextField!

这是我在viewDidload（）中调用的代表

override func viewDidLoad() {
    super.viewDidLoad()
    PermissionAppUser.AskAudioPermission()
    numberTextField.isUserInteractionEnabled = false
    numberTextField.delegate = self

    customizeBtnStyle()

    let longPress = UILongPressGestureRecognizer(target: self, action: #selector(deletedAll))
    delete.addGestureRecognizer(longPress)
}

我实现了这个委托，但从未调用...

func textFieldDidBeginEditing(_ textField: UITextField) {
    print("Text begin editing")
}

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
    let currentText = textField.text ?? ""
    guard let stringRange = Range(range, in: currentText) else { return false }

    let updatedText = currentText.replacingCharacters(in: stringRange, with: string)

    return updatedText.count <= 9
}

编辑：添加功能viewDidload

Answer 1

如果您不想显示键盘，请使用此代码

numberTextField.inputView = UIView()

未使用情节提要调用UITextField的委托

1 个答案: