iOS 12 - oneTimeCode OTP delegate

Question

Is there any delegate getting fired when the user taps the OTP suggestion that iOS provides?

I know that I could use UITextFieldDelegate methods to detect changes in the textfield's text property, but knowing that the user has pressed the button would make things so much easier...

Answer 1

According to Apple's article: About the Password AutoFill Workflow

For iOS apps, the system always sends a textDidChangeNotification notification when a view has been modified. It also calls one of the delegate methods of the view—but the exact method depends on the view’s type:

UITextField: The system calls your UITextFieldDelegate object’s textField(_:shouldChangeCharactersIn:replacementString:) method.

UITextView: The system calls your UITextViewDelegate object’s textView(_:shouldChangeTextIn:replacementText:) method.

Custom View adopting the UITextInput protocol: The system calls the insertText(:) method or replace(:withText:) in the UIKeyInput protocol.

You can create a subclass of UITextField or UITextView and override insertText(:) method and replace(:withText:) method, it will be called when user tap quickbar.

Answer 2

In my case, I found that when I got a text in Should change Charater I got two empty spaces, there I come to know that it is autofill characters, so according to it, I update my four text field one by one.