Question

我很难让推送通知在tvOS中工作。我有一个iOS应用程序，用于更新云工具包数据库。我也有一个tvOS应用程序，该应用程序订阅了此数据库以进行更新。此更新应保持沉默。但是，tvOS应用程序的订阅未收到推送通知。我尝试了多种不同的设置。

这是应用程序委托。划掉的是我以前尝试过的东西。

func application(_ application: UIApplication, 
didFinishLaunchingWithOptions launchOptions: 
[UIApplication.LaunchOptionsKey: Any]?) -> Bool {

    window = UIWindow(frame: UIScreen.main.bounds)
    window?.makeKeyAndVisible()
    window?.rootViewController = 
UINavigationController(rootViewController: ViewController() )
    let center = UNUserNotificationCenter.current()
    center.delegate = self
//        center.requestAuthorization(options: [.provisional]) { 
(granted , error) in
//            guard error == nil else {return}
//            guard granted else {return}
//            DispatchQueue.main.async {
//                application.registerForRemoteNotifications()
//            }
//        }
    application.registerForRemoteNotifications()

    return true
}

我还添加了这些委托方法，但也尝试在没有它们的情况下运行，因为我相信云工具包应注意注册设备令牌。

func application(_ application: UIApplication, 
didReceiveRemoteNotification userInfo: [AnyHashable : Any], 
fetchCompletionHandler completionHandler: @escaping 
(UIBackgroundFetchResult) -> Void) {

    print("received remote notification")
    let notification = 
CKQueryNotification(fromRemoteNotificationDictionary: userInfo)
    if notification.queryNotificationReason == .recordUpdated {
        //update the word with local notification
        NotificationCenter.default.post(name: name, object: nil)
    }
}

func application(_ application: UIApplication, 
didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) 
{
    print("device token:  \(deviceToken)")
}

func application(_ application: UIApplication, 
didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print("error: \(error)")
}

这是我设置云工具包订阅的地方

func setUpCloudKitSubscription() {
    let alreadySaved = UserDefaults.standard.bool(forKey: 
subscriptionSaved)
    guard !alreadySaved else {print("slready saved")
        return
    }

    let predicate = NSPredicate(value: true)
    let subscription = CKQuerySubscription(recordType: "Word", 
predicate: predicate, subscriptionID: subscriptionID, options: 
[.firesOnRecordUpdate, .firesOnRecordCreation])
    let info = CKSubscription.NotificationInfo()
    info.shouldSendContentAvailable = true

    subscription.notificationInfo = info

    publicDatabase.save(subscription) { (subscription, error) in
        guard error == nil else {return}
        UserDefaults.standard.set(true, forKey: 
self.subscriptionSaved)
        print("subscription saved")

    }

 }

我还具有远程通知的后台模式，突出显示了后台提取，但是也尝试了不突出显示后台提取的情况。

我编写的代码在iOS应用上使用时也可以使用。由于某些原因，代码无法在tvOS上更新UI。

Any help would be greatly appreciated.

Best,
Ryan

tvOS推送通知

0 个答案: