Some function in class A sends a notification named ISentANotification:
class A {
func sendNotification() {
NotificationCenter.default.post(name: Notification.Name(rawValue: "ISentANotification"), object: self)
}
}
When class B receives the notification named ISentANotification, calls the function IReceiveANotification:
class B: UIViewController {
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated);
NotificationCenter.default.addObserver(self, selector: #selector(B.IReceiveANotification), name: Notification.Name(rawValue: "ISentANotification"), object: nil)
}
override func viewWillDisappear(_ animated: Bool) {
NotificationCenter.default.removeObserver(self)
}
@objc func IReceiveANotification() {
print("I received a notification!")
}
}