WatchOS 3 中的本地通知

我正在使用 WatchOS 3 beta 并尝试在手表上启动本地通知。该界面只是一个按钮，它调用下面代码中的“buttonPushed”方法。该应用程序运行良好，但我从未收到通知。应用程序结构是 Xcode 8 中 WatchKit 应用程序的默认结构。

此代码位于 WatchKit 扩展的 InterfaceController.swift 文件中

我是否遗漏了一些完全明显的东西？

@IBAction func buttonPushed() {
        sendMyNotification()
    }

    func sendMyNotification(){
        if #available(watchOSApplicationExtension 3.0, *) {

            let center = UNUserNotificationCenter.current()

            center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in
                // Enable or disable features based on authorization.
            }


            let content = UNMutableNotificationContent()
            content.title = NSString.localizedUserNotificationString(forKey: "Hello!", arguments: nil)
            content.body = NSString.localizedUserNotificationString(forKey: "Hello_message_body", arguments: nil)
            content.sound = UNNotificationSound.default()
            content.categoryIdentifier = "REMINDER_CATEGORY"
            // Deliver the notification in five seconds.
            let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 5, repeats: false)
            let request = UNNotificationRequest.init(identifier: "FiveSecond", content: content, trigger: trigger)

            // Schedule the notification.

            center.add(request ,withCompletionHandler: nil)



        } else {
            // Fallback on earlier versions
        }


    }

根据this https://forums.developer.apple.com/message/170411#170411。您应该为每次请求指定一个唯一的新标识符。

Mine:

let id = String(Date().timeIntervalSinceReferenceDate)
let request = UNNotificationRequest(identifier: id, content: content, trigger: trigger)