ひさしぶりに、NotificationCenter を使ったので覚書き。
extensions.swift
import NotificationCenter extension Notification.Name { static let notifyName = Notification.Name("notifyName") }
ViewController.swift
class ViewController: UIViewController{ override func viewDidLoad() { NotificationCenter.default.addObserver(self, selector: #selector(update(_:)), name: .notifyName, object: nil) let url:String = "http://..." NotificationCenter.default.post(name: .notifyName, object: self,userInfo: ["url": url]) } @objc func update(_ notification: NSNotification){ if let userInfo = notification.userInfo { let urlString:String = (userInfo["url"] as? String)! print("受信したURL:\(urlString)") } } }