Where to remove observer for NSNotification in Swift?

Question

Where should I remove the observer for NSNotification in Swift, since viewDidUnload and dealloc() are unavailable?

Answer 1

In Swift 4.2, this is one of the way you can remove observer

deinit {
    NotificationCenter.default.removeObserver(self, name: Notification.Name.Identifier, object: nil)
}

setup addObserver notification in viewDidLoad class

override func viewDidLoad() {
    super.viewDidLoad()
    NotificationCenter.default.addObserver(self, selector: #selector(didReceivedItemDetail), name: Notification.Name.Identifier, object: nil)
}