2276 Views 10 Replies
      Latest reply: Jul 5, 2016 5:17 AM by Danny Wong RSS
      zulfishah Level 1 Level 1 (0 points)
      zulfishah Jun 15, 2016 1:55 AM

        According to the iOS10 documentation, Core Data stores with ubiquity options have been deprecated. But aside from deprecation warnings in code, it doesn't mention when the services will be discontinued ... will the apps still continue to sync for the forseeable future? Can someone on Core Data team comment?

        • Re: Core Data iCloud stores deprecated ...
          jeeeyul Level 1 Level 1 (10 points)
          jeeeyul Jun 15, 2016 8:10 PM (in response to zulfishah)

          Can you send me a link for the documentation? I saw deprecation comments for iCloud related constants(symbols), However, I could not found mentions about deprecation of core data + iCloud.

          • Re: Core Data iCloud stores deprecated ...
            atomicbird Level 1 Level 1 (0 points)
            atomicbird Jun 17, 2016 2:45 PM (in response to zulfishah)

            I've been wondering the same thing. The docs for NSPersistentStoreCoordinator deprecate everything related to iCloud and don't suggest alternatives. That means it's apparently iimpossible to use Core Data with iCloud without using deprecated symbols. And that implies that iCloud + Core Data is itself deprecated. But the lack of any statement to that effect leaves things somewhat unclear. I thought this might be covered in the "What's New...." session, but there was no mention of it.

            • Re: Core Data iCloud stores deprecated ...
              bent Apple Staff Apple Staff (10 points)
              bent Jun 21, 2016 1:05 PM (in response to zulfishah)

              Hi zulfishah,

               

              Apps will continue to work for the foreseeable future.  Aside from the deprecation warnings, there are no changes to or removal of the functionality in iOS 10.  We don't have any specific time line to announce now, but traditionally deprecated symbols on our platform remain functional for a considerable period of time before removal.

               

              Only the client Core Data iCloud API symbols are deprecated.  Core Data with iCloud is built on top of the iCloud Drive service.  The service pieces are not effected in any way and will continue to work.  If and when the deprecated APIs are disabled in some future OS version, applications running on iOS 9 or 10 will continue to work.

               

              - Ben

                • Re: Core Data iCloud stores deprecated ...
                  Jasko Level 1 Level 1 (0 points)
                  Jasko Jun 21, 2016 4:14 PM (in response to bent)

                  What's the recomendation for new applications using iCloud with Core Data for iOS 10?

                   

                  Should we use the deprecated API until there is an updated one from Apple?

                  (Or to rephrase: Is Apple going to continue providing this kind of API in the future, in one form or the other?)

                   

                  Or should I invest in a third party sync solution?

                   

                  Personally, I am not into writing my own sync framework.

                   

                  Regards,

                  Jasko

                    • Re: Core Data iCloud stores deprecated ...
                      malhal Level 1 Level 1 (20 points)
                      malhal Jun 22, 2016 1:17 AM (in response to Jasko)

                      Given the improvements to Core Data with query generations and persistent coordinator locking I'd guess an implementation of sync (that includes push notifications unlike iCloud Core Data) from Apple will arrive at next WWDC, hopefully. In the meantime I suppose you have to do it yourself. I've been working on a delta sync with relations for a very long time and still isn't ready because it is extremely difficult to get right, so I would recommend just maintaining a cache from CloudKit in Core Data and doing full refresh instead of trying to save bandwidth.

                      • Re: Core Data iCloud stores deprecated ...
                        Danny Wong Level 1 Level 1 (0 points)
                        Danny Wong Jul 5, 2016 5:17 AM (in response to Jasko)

                        Same here, I am working on a new app that supposed to use iCloud Core Data sync. Now because the APIs are deprecated in iOS 10, I am stuck now and don't know how to proceed with the project plan.

                      • Re: Core Data iCloud stores deprecated ...
                        zulfishah Level 1 Level 1 (0 points)
                        zulfishah Jun 29, 2016 3:07 AM (in response to bent)

                        Thanks for the confirmation, Ben.