Re: Is CloudKit sharing really in iOS 10?

This issue with the Mac App Store signed apps should be addressed in the macOS Sierra beta that was posted today.  It would be great to hear from folks that can install it. 

Hi,

thanks for sharing your code.

I tried this in a testing branch of my app on a real device, but when clicking the resulting link, I get taken to the iCloud website which tells me that this item is unavailable because the user stopped sharing it or that I don't have permission to open it.

Is this normal? Or am I doing something wrong. I copied your code (by typing, to get a better understanding), without changing anything.

The only possible reason which comes up to me is that I'm trying to open the link with the iCloud account that created it... Should I have 2 accounts to test?

Any feedback is highly appreciated!

Janny,

Thanks for the code snippets. You demonstrate how to share a record using one AppleID, then receiving the share on another device with second AppleID. Though, once the data is received, are we required to save the metadata.rootRecordID in persistent storage in the event the app is exitted/killed. I am unable to perform a CKQuery on the shared database after receiving the shared record ID the first time. So all works well for your code (again thanks), though not being able to query the shared database later is a bit limiting. Means I need to store the recordID's in persistent storage or other. I feel like I am missing something important here. Though, Apple would serve developers well by putting together a functional demo app for the share process going forward.

Thanks for any further guidance.

Immensely helpful. Thank you!

For anyone who stumbles upon this, here is how I went about doing it:

@IBAction func shareButtonTapped(_ sender: UIButton) {
   
    let shareController = UICloudSharingController { shareController,
        preparationCompletionHandler in
    
      let zoneID = CKRecordZoneID(zoneName: "MyCustomZoneName",
          ownerName: CKCurrentUserDefaultName)
      let zone = CKRecordZone(zoneID: zoneID)
     
      let modZonesOp = CKModifyRecordZonesOperation(recordZonesToSave: [zone],
          recordZoneIDsToDelete: nil)
      modZonesOp.timeoutIntervalForRequest = 10
      modZonesOp.timeoutIntervalForResource = 10
      modZonesOp.modifyRecordZonesCompletionBlock = { zone, _, error in
       
        if let error = error as? CKError {
          print("modZonesOp error:", error)
          preparationCompletionHandler(nil, nil, error)
          return
        }
       
        
        // Get the record ID; I include it in the model and capture upon initial save to iCloud
        let recordID = self.list?.recordID

        self.privateDB.fetch(withRecordID: recordID!,
            completionHandler: { (record, error) in
          if error != nil {
            print("Error fetching record:", error)
          } else {
            print("Found record, creating share...")
            let share  = CKShare(rootRecord: record!)
            let listType = self.list?.type.rawValue
            share[CKShareTitleKey] = "\(listType!) List" as CKRecordValue
           
            let modRecordsOp = CKModifyRecordsOperation(recordsToSave: [record!, share],
                recordIDsToDelete: nil)
           
            modRecordsOp.timeoutIntervalForRequest = 10
            modRecordsOp.timeoutIntervalForResource = 10
           
            modRecordsOp.modifyRecordsCompletionBlock = { records, recordIDs, error in
              if error != nil {
                print("modifyRecordsOp error:", error)
              } else {
                print("Successfully modified records")
              }
              preparationCompletionHandler(share, CKContainer.default(), error)
            }
            self.privateDB.add(modRecordsOp)
          }
        })
      }
      self.privateDB.add(modZonesOp)
    }
   
    shareController.availablePermissions = [.allowPrivate, .allowReadWrite]
    shareController.popoverPresentationController?.sourceView = shareButton
   
    present(shareController, animated: true)
   
  }