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

First create a dictionary for multiple values.

let name = "Abhi"
let age = 21
let email = "abhi@xyz.com"
let myDict = [ "name": name, "age":age, "email":email]
// post myDict
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "post"), object: nil, userInfo: myDict)

Add observer in other ViewController

NotificationCenter.default.addObserver(self, selector: #selector(doThisWhenNotify(notification:)), name: NSNotification.Name(rawValue: "post"), object: nil)

func doThisWhenNotify(notification : NSNotification) {
    let info = notification.userInfo
    print("name : ",info["name"])
    print("age : ",info["age"])
    print("email : ",info["email"])

}