iOS 12 - oneTimeCode OTP 委托(delegate)

Question

当用户点击 iOS 提供的 OTP 建议时，是否有任何 delegate 被解雇？

我知道我可以使用 UITextFieldDelegate 方法来检测 textfield 的 text 属性的变化，但我知道用户按下了这个按钮会让事情变得容易得多......

Answer 1

根据 Apple 的文章: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.

您可以创建 UITextField 或 UITextView 的子类并覆盖 insertText(:) 方法和 replace(:withText:) 方法，它将在用户点击快捷栏时调用。