push-notification - 如何设置最小的CKSubscription？

Question

我想设置一个简单的CKSubscription，通知我创建了recordType，怎么办？

Answer 1

经过一段时间的尝试后，这就是如何设置最小的CKSubscription的方法。您必须在设备上进行测试，推送通知在模拟器上不起作用。您可以在Dashboard中添加记录，这也会触发推送通知。

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

    application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes: .Alert, categories: nil))
    application.registerForRemoteNotifications()
        return true
}

func someFunc() { // <- you need to call once in app life time, and again when it was removed / installed 
     let defaultContainer = CKContainer.defaultContainer()
     let publicDatabase = defaultContainer.publicCloudDatabase   
     let subs = CKSubscription(recordType: "xxx", predicate: NSPredicate(value: true), subscriptionID: "yyy", options: .FiresOnRecordCreation)
     subs.notificationInfo = CKNotificationInfo()
     subs.notificationInfo.alertBody = "New item added"
     publicDatabase.saveSubscription(subs, completionHandler: {subscription, error in})
}

func application(application: UIApplication!, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]!)
{
    // <- this method will invoked
}