ios - NotificationCenter 中的推送通知在用户信息中返回 nil - Swift3

Question

我已将源代码从 Swift 2.2 更新到 Swift 3.0 以用于推送通知。但我无法获取用户信息。它将返回零。谁能帮忙？

在应用程序委托(delegate)中接收推送通知:

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {

        // Define identifier
        let notificationName = Notification.Name("PushNotificationMessageReceivedNotification")

        // Register to receive notification
        NotificationCenter.default.addObserver(self, selector: #selector(MenuViewController.remoteNotificationReceived), name: notificationName, object: userInfo)

        // Post notification
        NotificationCenter.default.post(name: notificationName, object: nil)
    }

在其他 viewController 中，我想接收推送通知并执行一些操作:

override func viewDidLoad() {
        super.viewDidLoad()
        self.delegate = self

        NotificationCenter.default.addObserver(self, selector: #selector(MenuViewController.remoteNotificationReceived(_:)), name: NSNotification.Name(rawValue: "PushNotificationMessageReceivedNotification"), object: nil)

    }

func remoteNotificationReceived(_ notification: Notification)
    {
        print("Notification:\(notification.userinfo)");
}

Answer 1

发布通知时传递 UserInfo像这样:-

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {

        // Define identifier
        let notificationName = Notification.Name("PushNotificationMessageReceivedNotification")

        // Register to receive notification
        NotificationCenter.default.addObserver(self, selector: #selector(MenuViewController.remoteNotificationReceived), name: notificationName, object: userInfo)

        // Post notification
        NotificationCenter.default.post(name: notificationName, object: nil, userInfo :userInfo)
    }