how to send notification.userinfo in a notification

Question

In Appdelegate.swift,

func application(application: UIApplication, didReceiveLocalNotification notification: UILocalNotification) {

 NSNotificationCenter.defaultCenter().postNotificationName("notification", object: nil, **userInfo: notification.userInfo**)
}

In ViewController.swift

I included observer and method

override func viewDidLoad() {
    super.viewDidLoad()

    NSNotificationCenter.defaultCenter().addObserver(self, selector:"handleNotification", name: "notification", object: nil)
 }

func handleNotification(notification: NSNotification){
    print("enter ")
}

When i handle notification, it crashes "unrecognised selector sent to instance" what is problem?

You should change `selector:"handleNotification" ` to `selector:"handleNotification:" ` — RrrangeTop, Mar 22 '17 at 13:05

score 0 · Answer 1 · answered Mar 22 '17 at 12:58

0

For Swift 3

Change your notification observer to

NotificationCenter.default.addObserver(self, selector: #selector(handleNotification(with:)), name: notification, object: nil)

Try to change your handleNotification function to:

func handleNotification(with notification: Notification){
    print("enter ");
}

answered Mar 22 '17 at 12:58

Ben St. John

1
1

I am using Swift 2.2 in Xcode 7.0. So, #selector is not working – Jatt_Programmer Mar 22 '17 at 13:04

score 0 · Answer 2 · answered Mar 22 '17 at 13:06

0

Please add this and check it.

NSNotificationCenter.defaultCenter().addObserver(self, selector:#selector(handleNotification(_:)), name: "notification", object: nil)

answered Mar 22 '17 at 13:06

Sunil Prajapati

473
5
17

how to send notification.userinfo in a notification

2 Answers2