how to pass multiple values with a notification in swift

Question

How to send a number and a String through a notification ...

let mynumber=1;
let mytext=\"mytext\";
NSNotificationCenter.defaultCenter().postNotificationName         


        

Answer 1

Swift 4.0, I am passing single key:value, you can add multiple keys and values.

   NotificationCenter.default.post(name:NSNotification.Name(rawValue: "updateLocation"), object: ["location":"India"])

Adding Observer and Method definition. You also need to remove observer.

NotificationCenter.default.addObserver(self, selector: #selector(getDataUpdate), name: NSNotification.Name(rawValue: "updateLocation"), object: nil)

@objc func getDataUpdate(notification: Notification) {
        guard let object = notification.object as? [String:Any] else {
            return
        }
        let location = object["location"] as? String
        self.btnCityName.setTitle(location, for: .normal)

        print(notification.description)
        print(notification.object ?? "")
        print(notification.userInfo ?? "")
    }