Qfyilyi

I know that if we want to auto fetch the OTP(if we use single textfield) we need to use

otpTextField.textContentType = .oneTimeCode

But, If we use multiple textfield(According to following image)

how should we achieve this ?

If you can get the auto OTP for single field, you can split that text into your four text fields. I believe.

You may have to use textField's change observer as like below,

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

func textFieldDidChange(_ textField: UITextField) {



        // here check you text field's input Type

        if textField.textContentType == UITextContentType.oneTimeCode{



            //here split the text to your four text fields



            if let otpCode = textField.text, otpCode.count > 3{



                textField.text = String(otpCode[otpCode.startIndex])

                textField1.text = String(otpCode[otpCode.index(otpCode.startIndex, offsetBy: 1)])

                textField2.text = String(otpCode[otpCode.index(otpCode.startIndex, offsetBy: 2)])

                textField3.text = String(otpCode[otpCode.index(otpCode.startIndex, offsetBy: 3)])

        }

    }



}

UPDATE iOS 12

Apple will allow the support to read One Time Code(OTP - One Time Password) which you will get in the iPhone device.

iOS supports Password AutoFill on UITextField, UITextView, and any custom view that adopts the UITextInput protocol. System keyboard set the textContentType on it to .oneTimeCode

1) Using Code

singleFactorCodeTextField.textContentType = .oneTimeCode

2) Using Storyboard/XIB

Select UITextField/UITextView in storyboard/XIB click Click on Attribute inspector. Go to text input trait, click to Content type and select one time code and done.

The operating system will detect verification codes from Messages automatically with this UITextContentType set.

Also you can split for that otp what you expect.

Check out the official documentation for https://developer.apple.com/documentation/security/password_autofill/enabling_password_autofill_on_a_text_input_view