Main View Controller

gistfile1.swift

override func viewDidLoad() {
        super.viewDidLoad()
        
       NSNotificationCenter.defaultCenter().addObserver(self, selector: "remoteNotificationReceiveAction:", name: "remoteNotificationReceived", object: nil) 
}

func remoteNotificationReceiveAction(data: NSNotification) {
        
        if let apsPayloadContent: AnyObject = data.userInfo as? AnyObject {
            
            if let url: String = apsPayloadContent["imageURL"] as? String {
                
                let notifyVC =  self.storyboard?.instantiateViewControllerWithIdentifier("notify") as! NotifyViewController
                notifyVC.imageURL = url
                 
                let presentingVC = UIApplication.sharedApplication().keyWindow?.rootViewController
                if (presentingVC?.presentedViewController != nil) {
                    presentingVC?.presentedViewController?.presentViewController(notifyVC, animated: true, completion: nil)
                } else {
                    presentingVC?.presentViewController(notifyVC, animated: true, completion: nil)
                }
            }
        }
    }