続 CloudKitを使ってみた Swift版 - サブスクリプション編

    func saveSubscription() {

        let collection = CKContainer.defaultContainer().publicCloudDatabase

        // 1. Create a subscription on Persons.
        let subscription = CKSubscription(recordType: "Persons", predicate: NSPredicate(format: "TRUEPREDICATE"), options: [CKSubscriptionOptions.FiresOnRecordCreation, CKSubscriptionOptions.FiresOnRecordUpdate])

        // 2. Set a Notification details on it.
        let notificationInfo = CKNotificationInfo()
        notificationInfo.alertLocalizationKey = "Person record has changed!"
        notificationInfo.shouldBadge = true

        subscription.notificationInfo = notificationInfo // set it to the subscription

        // 3. Save the subscription on 'Persons' record.
        collection.saveSubscription(subscription) { (subscription:CKSubscription?, error:NSError?) in

            if let error = error {
                print("error occurred: \(error)")
            }

            print("Subscription is saved. \(subscription?.subscriptionID)")
        }
    }

import CloudKit
...
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        let notificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Sound], categories: nil)
        application.registerUserNotificationSettings(notificationSettings)
        application.registerForRemoteNotifications()
        print("registered!")
        return true
    }

    func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
        let notification = CKNotification(fromRemoteNotificationDictionary: userInfo as! [String:NSObject])
        print("An alert has been recieved from iCloud: \(notification.alertBody)")
    }