如何在 swift 中为 VP OTPView 添加数字键盘上的完成按钮

Question

我正在为 OTP 字段使用 VPMOTPView，当我在这里点击 OTP 视图时，我得到的是带数字键盘的键盘，但这里是如何将完成按钮添加到键盘。

我可以在键盘上为文本字段添加完成按钮，但是如何为 VPMOTPView 添加。

class OTPViewController: UIViewController {

@IBOutlet weak var otpView: VPMOTPView!
var phone : String?
var otp   : String?

override func viewDidLoad() {
    super.viewDidLoad()
    //self.navigationBarButton()
    otpView.otpFieldsCount = 6
    otpView.otpFieldDefaultBorderColor = UIColor.lightGray
    otpView.otpFieldEnteredBorderColor = UIColor(named: "LightPrimaryColor") ?? UIColor.blue
    otpView.otpFieldErrorBorderColor = UIColor.red
    otpView.otpFieldBorderWidth = 1
    otpView.delegate = self
    otpView.shouldAllowIntermediateEditing = false
    otpView.otpFieldSize = 25
    otpView.otpFieldDisplayType = .underlinedBottom
    otpView.otpFieldEntrySecureType=false
    otpView.initializeUI()
    emailIconLabel.text = "We have sent an sms with OTP \nto \(phone!)"
    self.getOTPService()
}
}

请帮助我添加在键盘上完成的代码。

Answer 1

您可以在键盘顶部附加一个带有完成按钮的工具栏。

extension UITextField {

func addDoneButtonOnKeyboard() {
    let doneToolbar: UIToolbar = UIToolbar(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
    doneToolbar.barStyle = .default
    let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
    let done = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(someMethod))
    let items = [flexSpace, done]
    doneToolbar.items = items
    doneToolbar.sizeToFit()
    inputAccessoryView = doneToolbar
}
}

导入的部分在您的 UITextField 上 inputAccessoryView。

Answer 2

先在UITextField上介绍这个extension添加Done按钮。

extension UITextField {

    /// Adding a done button on the keyboard
    func addDoneButtonOnKeyboard() {
        let doneToolbar = UIToolbar(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
        doneToolbar.barStyle = .default

        let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
        let done = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))

        let items = [flexSpace, done]
        doneToolbar.items = items
        doneToolbar.sizeToFit()

        self.inputAccessoryView = doneToolbar
    }

    /// Done button callback
    @objc func doneButtonAction() {
        self.resignFirstResponder()
    }
}

现在，在 VPMOTPView 中使用的所有 UITextField 实例上调用 addDoneButtonOnKeyboard 方法，如下所示，

override func viewDidLoad() {
    super.viewDidLoad()
    //self.navigationBarButton()
    otpView.otpFieldsCount = 6
    otpView.otpFieldDefaultBorderColor = UIColor.lightGray
    otpView.otpFieldEnteredBorderColor = UIColor(named: "LightPrimaryColor") ?? UIColor.blue
    otpView.otpFieldErrorBorderColor = UIColor.red
    otpView.otpFieldBorderWidth = 1
    otpView.delegate = self
    otpView.shouldAllowIntermediateEditing = false
    otpView.otpFieldSize = 25
    otpView.otpFieldDisplayType = .underlinedBottom
    otpView.otpFieldEntrySecureType=false
    otpView.initializeUI()
    emailIconLabel.text = "We have sent an sms with OTP \nto \(phone!)"

    otpView.subviews.compactMap({ [=11=] as? VPMOTPTextField}).forEach { tv in
        tv.addDoneButtonOnKeyboard()
    }
    self.getOTPService()
}

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