Type 'NSNotification.Name' has no member 'UIResponder'

Question

I'm getting this error with Swift 5

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillShow(_:)), name: NSNotification.Name.UIResponder.keyboardWillShowNotification, object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide(_:)), name: NSNotification.Name.UIResponder.keyboardWillHideNotification, object: nil)

also I'm getting below error

'Name' is not a member type of 'Notification'

public let ImagePickerTrayDidHide: Notification.Name = Notification.Name(rawValue: "ch.laurinbrandner.ImagePickerTrayDidHide")

how I can fix that?

Answer 1

As I can guess initially you had the following code:

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillShow(_:)), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide(_:)), name: UIResponder.keyboardWillHideNotification, object: nil)

When you compiled it in Xcode 10.1 you received the following errors: 'keyboardWillShowNotification' has been renamed to 'NSNotification.Name.UIKeyboardWillShow', Replace 'keyboardWillShowNotification' with 'NSNotification.Name.UIKeyboardWillShow' and 'keyboardWillHideNotification' has been renamed to 'NSNotification.Name.UIKeyboardWillHide', Replace 'keyboardWillHideNotification' with 'NSNotification.Name.UIKeyboardWillHide' .

Then you pressed "Fix" twice and get the incorrect code you already added to your question. You should use the following:

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillShow(_:)), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide(_:)), name: NSNotification.Name.UIKeyboardWillHide, object: nil)

Answer 2

Replace the NotificationCenter.Name.UIResponder with UIResponder For Eg:

NotificationCenter.default.addObserver(
self, 
selector: #selector(self.keyboardWillShow(_:)), 
name: UIResponder.keyboardWillShowNotification, object: nil)

NotificationCenter.default.addObserver(
self, 
selector: #selector(self.keyboardWillHide(_:)), 
name: UIResponder.keyboardWillHideNotification, object: nil)

For More details refer https://stackoverflow.com/a/52325564/8331006

Answer 3

Replace UIResponder.NSNotification.Name.UIKeyboardWillShow with .UIKeyboardWillShow