CloudKit subscriptions in tvOS - swift

Question

I am trying to sync data between a few Apple TVs using CloudKit and CKSubcription. The problem is application:didReceiveRemoteNotification: is never called when I add, delete, or update records. I believe I am configuring the subscriptions correctly and I have confirmed they are added to the CloudKit dashboard. I have repeatedly tried resetting the development environment in the dashboard, but that is not helping. I really don't want to create a timer to fetch every so often. Thanks for any help!
Also, I am using the private database in CloudKit and not the public database if that matters.
Here's my code:
AppDelegate.swift
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
CloudKitManager.subscribeToItemUpdates()
application.registerForRemoteNotifications()
...
return true
}
CloudKitManager.swift
class func subscribeToItemUpdates() {
if let uuid = UIDevice.currentDevice().identifierForVendor?.UUIDString {
saveSubscriptionWithIdentifier(uuid + "create", options: CKSubscriptionOptions.FiresOnRecordCreation)
saveSubscriptionWithIdentifier(uuid + "update", options: CKSubscriptionOptions.FiresOnRecordUpdate)
saveSubscriptionWithIdentifier(uuid + "delete", options: CKSubscriptionOptions.FiresOnRecordDeletion)
}
}
class func saveSubscriptionWithIdentifier(identifier: String, options: CKSubscriptionOptions) {
let sub = CKSubscription(recordType: "Message", predicate: NSPredicate(value: true), subscriptionID: identifier, options: options)
sub.notificationInfo = CKNotificationInfo()
let publicDatabase = CKContainer.defaultContainer().publicCloudDatabase
publicDatabase.saveSubscription(sub) { (savedSubscription, error) -> Void in
if error != nil {
print("Error saving CloudKit subscription \(error)")
}
else {
print("Saved subscription to CloudKit", savedSubscription)
}
}
}

Answer 1

There is a slight difference between tvOS and iOS. In my demo app i handle it like this:
#if os(tvOS)
//This will only be called when your app is active. So this is what you should use on tvOS
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
EVLog("Push received")
EVCloudData.publicDB.didReceiveRemoteNotification(userInfo, executeIfNonQuery: {
EVLog("Not a CloudKit Query notification.")
}, completed: {
EVLog("All notifications are processed")
})
}
#else
// Process al notifications even if we are in the background. tvOS will not have this event
// Make sure you enable background notifications in the app settings. (entitlements: pushnotifications and backgrounds modes - notifications plus background fetch)
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject], fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
EVLog("Push received")
EVCloudData.publicDB.didReceiveRemoteNotification(userInfo, executeIfNonQuery: {
EVLog("Not a CloudKit Query notification.")
}, completed: {
EVLog("All notifications are processed")
completionHandler(.NewData)
})
}
#endif
For more information see EVCloudKitDao