Silent-push-notification.md

• Silent push notification

You need to push content-available in a payload.

{
  "content-available" : 1
}

And you can check this in application delegate:

func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject], fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
   let aps = userInfo["aps"] as! [String: AnyObject]

 // 1
 if (aps["content-available"] as? NSString)?.integerValue == 1 {
   // Refresh data
   // 2
   let podcastStore = PodcastStore.sharedStore
   podcastStore.refreshItems { didLoadNewItems in
     // 3
     completionHandler(didLoadNewItems ? .NewData : .NoData)
   }
 } else  {
   // News
   // 4
   createNewNewsItem(aps)
   completionHandler(.NewData)
 }
 }

Reference http://stackoverflow.com/a/36327058/1146834 https://www.raywenderlich.com/123862/push-notifications-tutorial