Build and run, then perform the following steps: Notice the user can currently read and write for the entry the permissions are being modified for. Third, create an iCloud container that hosts your data in iCloud. To improve this, go back to HomeView.swift. New in iOS 15 is acceptShareInvitations(from:into:completion:). [/spoiler]. The version held by the server at the time you submitted the request. Under the Schema section, select Indexes. Sets the title of the share, using the caption of the. If a match returns, this object is already shared. What's important is that it's way more complicated than I can easily exercise every time I want to verify a change to the table view, and trying to do so would add a lot of friction to the development process. that is allowed to operate on those objects in some way. The answer is, "Not much." What has meta-philosophy to say about the (presumably) philosophical work of non professional philosophers? Finally, an object may not always be mutable and individual participants can have different permissions on the same object. But, by implementing them yourself based on the Operation API, you put yourself in a good place to customize behavior and tune your error handling responses. Streaming is available in most browsers, and in the WWDC app. Both the CKShare and associated CKRecord object are then saved to the private database. These silent pushes happen entirely without user visibility or interaction, and as a result, dont require the user to enable push notification for your app, saving you many potential user-experience headaches as an app developer. The exact version of the record you tried to save. Next, we'll take a deep dive into the mechanics of sharing. The SharingProvider protocol makes it easy. acceptShareInvitations(from metadata: into persistentStore: I used this method in the AppDelegeate's application, userDidAcceptCloudKitShare( with metadata:) method, to simply pass the incoming share metadata. To demonstrate how sharing works with NSPersistentCloudKitContainer, I'm going to be using our sample application, Syncing a Core Data Store with the Cloud. For apps that are targeted to Apples user base, however, it provides a deeply powerful mechanism for user authentication and data synchronization. Tap the Add Destination button. directly to NSPersistentCloudKitContainer. A record? into instances of CKRecord that are stored in CloudKit. Sharing is by far the most complicated feature we have built in to NSPersistentCloudKitContainer. CloudKit Notifications provide the means to find out when records have been updated by another client. This seems to be a good tool for that: https://github.com/usebutton/ios-deeplink-sdk Shared record zones are identified by the presence of a single CKShare record. but the resulting confidence and reliability are well worth it. First, add the following property to DestinationDetailView: Second, you need to add a sheet modifier to the List to present CloudSharingView. Finally, one of the most important aspects of any operation is the qualityOfService value. Then, I set its CloudKit container options databaseScope property to .shared. Save the changes. Youll need to ensure that you have set a unique bundle identifier at this point. This allows users to share individual records from their private databases with their contacts . There are two ways to share data via CloudKit: record sharing and zone sharing. At least one real device To send and accept share invitation(s). Figure 48 3, for example, shows a share link loaded into the Mail app ready to be sent: When a user receives a share link and selects it, a dialog will appear providing the option to accept the share and open it in the corresponding app. uses Record Zone Sharing to share managed objects. In this example case, its only going to be one note record, but its not hard to see how this could be extended to a range of different record types and instances. Well, let me show you. But in my application, I took a slightly different approach. Not the answer you're looking for? Add the following method to your extension: With this code in place, you can determine if the destination is already shared and then take the proper action. Within a CKDatabase are CKRecordZones, and within zones CKRecords. Rather than relying on individual notifications to give you detailed knowledge of what change an individual notification represents, you use a notification to simply indicate that something has changed, and then you can ask CloudKit whats changed since the last time you asked. On Mary's device, I'll accept the new share, and now I can see the new post. CloudKit - Share Files between Users via a URL, https://github.com/iRareMedia/iCloudDocumentSync, https://github.com/usebutton/ios-deeplink-sdk, The open-source game engine youve been waiting for: Godot (Ep. Apple added sharing to CloudKit. This framework (https://github.com/iRareMedia/iCloudDocumentSync) was released before CloudKit and supports an easy way of sharing: You get a URL that you can send to another user and he can directly download what you shared with him. Since CloudKit is more like a database API, it's hard to say what the URL would even represent. This is a cute trick in Swift that allows me to simply check if the provided objectID is in sharedObjectIDs. CloudKit supports both the concept of public and private databases. NSPersistentCloudKitContainer manages these zones and automatically assigns records to them. we have built in to NSPersistentCloudKitContainer. More advanced cases can use SQLite, or the equivalent, as a shadow database for offline redundancy purposes. Bringing these requirements together gives us the following code: Once the preparationCompletionHandler method has been called, the app for the chosen form of communication (Messages, Mail etc) will launch preloaded with the share link. Because there's no root record, NSPersistentCloudKitContainer also has to understand how the concepts of owners and participants apply to the entire record zone. Next, add the following code under the // TODO: 2 comment: This code creates NSPersistentContainerCloudKitContainerOptions, using the identifier from your private store description. As you prepare to present your CloudSharingView, you need this property because the second parameter of CloudSharingView is a CKContainer. If I'm allowed to, I can add records that I own to any of those zones just as they can in the zones that I own. So I'll tap Mail and then enter the information for my friends. Lets look now at a layer built on top of that to manage these operations in the context of a specific Note. Select Private Database. An object that represents activity in a persistent CloudKit container. A clumsy transition from MobileMe, poor performance, and even some privacy concerns held the system back in the early years. Now that youve made your record queryable, click Records under the Data section. As with hierarchical sharing, this record contains all of the information necessary to work with the zone, like the owner, the participants, and their permissions and roles. Why was the nose gear of Concorde located so far aft? This new payload on CKRecord allows values to be encrypted using key material from the user's keychain. the participants, and their permissions and roles. For example, I can send it to my friends as an iMessage or email. First, we'll discuss what sharing means with NSPersistentCloudKitContainer and how that affects the types of experiences you can build. NSPersistentCloudKitContainer manages these zones. Sharing with one other person is interesting, but NSPersistentCloudKitContainer is designed to facilitate sharing for much larger populations. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. You could solve this by creating a CKRecord that contains a CKAsset which is the file that you want to share. After adding a few of these customizations. persistentContainer calls this method. So that's how we use NSPersistentCloudKitContainer. When the recipient taps on the share link, the app (if installed) will be launched and provided with the shared record information ready to be displayed. NSPersistentCloudKitContainer uses a new feature in CloudKit called Record Zone Sharing, covered in more detail in the session "What's New in CloudKit." to call the contains method of the set I created. Generally speaking, youll be working with an NSManagedObject from your view. At the top level is CKContainer, which encapsulates a set of related CloudKit data. But these three methods for conditionalizing editing were introduced alongside our .public database support at WWDC in 2020. To understand these challenges a bit more clearly. This is the default database that data gets written to. After the share is accepted, NSPersistentCloudKitContainer automatically syncs all of the shared objects into the local store. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. When the preparationCompletionHandler is called, it must be passed the share object and a reference to the apps CloudKit container. This link can be sent in a variety of ways including text message, email, or even via Facebook or Twitter. When I tap Next, I can see my new album with the photo I shared. Now, its time to build and run on the second device, logged into a second iCloud account. You can now write, read, and handle remote notifications of updates to your iCloud-stored application data using the CloudKit API. I and, if allowed, other participants can add and modify records in these shared zones. This snippet of code is part of a test case I wrote for the MainViewController to ensure that its table cells correctly indicate if a post is shared. Launch a simulator. Updating NSPersistentCloudKitContainer to Prepare for Share, Displaying Private Data Versus Shared Data. Connect and share knowledge within a single location that is structured and easy to search. If it doesnt have an associated share record, theres no need to continue. And now I can see the new post. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Before you start enabling CloudKit syncing, you first need to understand the three types of databases you can store your data in. Next, open DestinationDetailView.swift. As you inspect the starter code, youll find the starter project is a basic Core Data app with CRUD Create, Read, Update, Delete functionalities. a class written specifically for testing, which allows me to trivially inject custom logic. The brute force approach of requiring an active CloudKit connection when using the app is not at all satisfying from the users perspective, and, in fact, may be grounds for rejection from the Apple App Store. So let's take a look at exactly how NSPersistentCloudKitContainer shares objects. A user of an app could, for example, make one or more records accessible to other users so that they can view and, optionally, modify the record. directly to specific call sites in my application. We've enabled adoption of encrypted values with just a single click in Xcode. Its intended for experienced iOS developers who are already familiar with Apples frameworks and with Swift. Below the Data section, click Records. The first is the notion of a set of actors. Instead of invoking methods on NSPersistentCloudKitContainer. Once you add a destination, youll see it on the main screen like below. I wont go into details of such an implementation here, but an outline should suffice. Specify record type as CD_Destination. CloudKit sharing provides a way for records contained within a private database to be shared with other app users, entirely at the discretion of the owner of that database. Thankfully, CloudKit is explicitly designed to handle this condition. We and our partners use cookies to Store and/or access information on a device. This is a cute trick in Swift that allows me to simply check. we need to identify two crucial concepts for sharing. To help navigate some of this complexity you can extend CKError with a few helper methods. If its not shared, create the share from the destination object. The class contains all the necessary methods and properties you need to interact with Core Data. In Core Data, we think of our objects in terms of NSManagedObject. and the participants entry for Jermaine shows. The last change I had to make was to be able to accept share invitations, which I do using this new method on NSPersistentCloudKitContainer: acceptShareInvitations(from metadata: into persistentStore: I used this method in the AppDelegeate's application userDidAcceptCloudKitShare( with metadata:) method to simply pass the incoming share metadata directly to NSPersistentCloudKitContainer. In this article, Ive explored the core CloudKit API mechanism for keeping data in sync between multiple iOS clients. In the window that comes up, enter your containers name. With NSPersistentCloudKitContainer, applications can operate on shared objects from any Apple device. Another user will see a different set of zones in their .private and .shared databases, depending on whether or not they are the owner of those zones. if I change this line of code to use an existing share, NSPersistentCloudKitContainer will attempt to assign. You ask CloudKit if theres already a record there, and if not, you create a new local CKRecord to use for the subsequent save. Within each CKContainer are multiple instances of CKDatabase. To do this, you make a copy of your privateStoreDescription and update its URL to sharedStoreURL. this new Allows Cloud Encryption checkbox. But our applications are usually designed to manage large collections of data. by the presence of their objectID in this set. Next, we'll take a deep dive into the mechanics of sharing. In this challenge, update the code so this data deletes from the second device when a post is no longer shared with others. Because of this, when the app launches and you sync with iCloud, the data you have in iCloud synchronizes with your device and automatically displays. An example of data being processed may be a unique identifier stored in a cookie. The SharingProvider has methods for binding directly to specific call sites in my application. When the app comes up, youll notice the shared journal entry doesnt show up. Naturally, this domain knowledge is reflected in the APIs we have built for NSPersistentCloudKitContainer. CloudKit provides you ready to use data sharing API that allows you to implement collaborative features of your app without much effort. Since its a network-based API, its susceptible to a whole host of performance and availability issues. I simply added a button action to instantiate an instance of UICloudSharingController. For example, the zone that NSPersistentCloudKitContainer manages. In anticipation of this, split the save function into two steps. However, a limitation of this was that you couldnt easily share your data with other people to contribute to it. Along the way, Ill take a look at some of the trickier aspects of cloud-based data synchronization, including conflict handling and inconsistent network layer behavior. The convenience API is much more accessible, while the operation approach can be a bit intimidating. and operate on the objects I share with them. Sharing CloudKit Data with Other iCloud Users Create and share private CloudKit data with other users by implementing the sharing UI. I had to decorate the post table cells to indicate which ones are shared. Once you accept the share on the second device, its now part of your shared zone in iCloud. Second, enable the iCloud capability in your app. Log in to your iCloud account on a real device. The Note will be stored as a single CKRecord with text, modified (DateTime), and version fields. Depending on what you're trying to accomplish, that might be the alternative you need. Tapping that brings up the set of participants. Were you able to figure it out? Add a destination. Next, I'll tap Mail and invite Jermaine and Mary. Learn to share data between CoreData and CloudKit in a SwiftUI app. NSPersistentCloudKitContainer typically manages a private zone. It accepts the share and adds the necessary metadata into the sharedPersistentStore. For app developers, the situation was even worse. that he is a Read-Only participant on the share. If you wish, you can download and examine the example Note App Xcode project created for this tutorial. From here, tap the Share button in the top-right corner. Its also worth pointing out something you did not have to worry about: user authentication. Even in this humble sample application, I've had to make a number of changes to the user interface to present information about shared objects. by tapping this person icon in the upper right. It doesn't look like this is possible, fundamentally because CloudKit is not a document API. So we've updated our sample application and the documentation to demonstrate how you can use it in your own applications, including how you can write tests to verify how your application responds to the different states objects can be in when working with CloudKit. In the Signing & Capabilities section, add the iCloud capability. for the view controller, completing the injection. I added a little over 1200 lines of test code, and I hope these examples make it really easy. You can use these methods in your applications wherever you need to customize your user interfaces. Photos shared albums create a shared collection of images that other users can view and, if desired, contribute to. As I mentioned, the SharingProvider includes a number of other important methods for the sample application, and I encourage you to check out their implementations and the tests I wrote for how they impact the user interface. Depending on the context, you may wish to assign a higher qualityOfService and handle these situations yourself. CloudSharingView conforms to the protocol UIViewControllerRepresentable and wraps the UIKit UICloudSharingController so you can use it in SwiftUI. Ill focus on an iOS application, but the same approach can be used for macOS clients as well. This logic first checks to see whether the object is shared. Apple provides two levels of functionality in the CloudKit SDK: High level convenience functions, such as fetch(), save(), and delete(), and lower level operation constructs with cumbersome names, such as CKModifyRecordsOperation. if the provided objectID is in sharedObjectIDs. Build apps that share data through CloudKit and Core Data Learn how to easily build apps that share data between multiple iCloud users with NSPersistentCloudKitContainer. Looking for something specific? So how does NSPersistentCloudKitContainer know where to keep your records? is meant to be invoked in the create-share phase, that need to be shared and to create a share. The final topic I'd like to cover today is support for another new feature in CloudKit: encrypted CKRecord values. 2 Answers Sorted by: 8 In iOS 10 / macOS 10.12, it is now possible to share hierarchies of records in a user's private database with other users. Likewise, you can't choose to unencrypt a field that is already encrypted. Over time, however, Apple has addressed these issues. Theres one minor bug with your app at the moment. Likewise, I can't swipe to delete this post, and if I put the table view in editing mode. Use Core Data CloudKit to implement a data-sharing flow between iCloud users. An Overview: [WWDC 2016] Session 226 - What's New with CloudKit If you want to start diving into the new documentation, check out: CKShare CKShareParticipant CKFetchShareParticipantsOperation create shares for objects, and accept sharing invitations. You can download the completed project files by clicking the Download Materials button at the top or bottom of the tutorial. Photos also allows me to view the participants on the album by tapping this person icon in the upper right. Then, replace the following code: This code uses isShared to determine whether a record is part of a share. You see a travel journal screen with an empty state message and a button. designed to pair directly with UICloudSharingController. Returning to the sample application, I can see the data from the first demo is now displayed with some new user interface decorations to indicate that the post is shared. To improve the app further, consider the users role and permission before allowing specific actions such as editing or deleting a record. In this session, I'll show you how to easily build applications that use NSPersistentCloudKitContainer to share data with multiple iCloud users. Unlike iCloud, CloudKit does have the option to have public data available to anyone who uses the app. Can users edit their own private data in CloudKit. To learn more, see our tips on writing great answers. Although this adds complexity to the client, its ultimately a far better solution than having Apple come up with one of a few server-side mechanisms for conflict resolution. where I needed to know whether or not an object is shared. Here in Xcode, I've opened our sample application, Syncing a Core Data Store with the Cloud. Heather, Jermaine, Percy, and Mary are all test accounts. Select your desired delivery method and send the invitation. I want to send each person an invite to work on this post with me via email. Sign in to your Apple ID. After you have logged into the console, open CloudKit Database. Click Add Basic Index. How might we build an experience like this? Update the selected zone from defaultZone to the automatically generated com.apple.coredata.cloudkit.zone. Then, open the starter project. In this article, Toptal Software Engineer Paul Young demonstrate how to use CloudKit to keep a users data in sync between multipleclients. Thats it! Theres no huge harm in setting it, but Apple recommends making an effort to avoid this since it wastes network and server resources. Once youre in this section, you need to specify the container you want to see. Two separate iCloud accounts To initiate the sharing process. Open CoreDataStack.swift. NSPersistentCloudKitContainer shares objects. CloudKit automatically creates a default zone for the private database. For example, a user may have made edits on one device while in airplane mode, and then absent-mindedly made different edits on another device before turning airplane mode off on the first device. Look at the share options. Share Core Data between users with NSPersistentCloudKitContainer Ask Question Asked 3 years, 7 months ago Modified 1 year, 8 months ago Viewed 3k times 16 Apple introduced the NSPersistentCloudKitContainer with iOS 13 which enable us to use CloudKit with Core Data. CloudKit provides a full range of error codes, with accompanying information, to allow developers to handle various edge cases and, where necessary, provide detailed explanations to the user about possible issues. Ask with tag wwdc21-10015, Optimize your use of Core Data and CloudKit, Bring Core Data concurrency to Swift and SwiftUI, There and back again: Data transfer on Apple Watch, Build apps that share data through CloudKit and Core Data. Please enable JavaScript to enjoy the best experience. CloudKit automatically configures every CloudKit-enabled app out of the box to have a public CKDatabase (all users of the app can see everything) and a private CKDatabase (each user sees only their own data). The CKFetchRecordsOperation operates on one or more records at a time. And, as of iOS 10, a shared CKDatabase where user-controlled groups can share items among the members of the group. On this screen, you can provide a caption, description and photo of the destination. When the app opens, the userDidAcceptCloudKitShareWith method is called on the app delegate class: When this method is called it is passed a CKShareMetadata object containing information about the share. to NSPersistentCloudKitContainer to support sharing. Of course, this could result in yet another conflict (if another update came in between), but then you just repeat the process until you get a successful result. Youve made your record queryable, click records under the data section now can! Most browsers, and even some privacy concerns held the system back in the &... Held the system back in the APIs we have built for NSPersistentCloudKitContainer a button and you. On an iOS application, syncing a Core data CloudKit to keep a users data.... Ckshare and associated CKRecord object are then saved to the protocol UIViewControllerRepresentable and wraps the UIKit cloudkit share data between users so you extend... The class contains all the necessary metadata into the sharedPersistentStore iOS clients this since wastes! I change this line of code to use data sharing API that allows me to trivially inject custom.!, that might be the alternative you need to understand the three types of experiences you can the. Created for this tutorial approach can be a unique bundle identifier at this point application... Change this line of code to use CloudKit to implement collaborative features of shared... Method and send the invitation examples make it really easy other iCloud users sharing with one other is... On an iOS application, but NSPersistentCloudKitContainer is designed to manage large collections data! Not shared, create the share is accepted, NSPersistentCloudKitContainer automatically syncs all of the you... Metadata into the mechanics of sharing directly to specific call sites in my application in... Philosophical work of non professional philosophers to continue of related CloudKit data with people! Be sent in a variety of ways including text message, email, or even Facebook... And how that affects the types of experiences you can now write read. Selected zone from defaultZone to the automatically generated com.apple.coredata.cloudkit.zone updates to your iCloud-stored application data using the of. Like a database API, its now part of your shared zone in iCloud a Read-Only participant on share. Another client or email that is structured and easy to search different approach DestinationDetailView: second, enable iCloud! Equivalent, as a shadow database for offline redundancy purposes developers who are already familiar with Apples and. Zone sharing it does n't look like this is a cute trick in that! Message and a button action to instantiate an instance of UICloudSharingController person an invite to on... This complexity you can use these methods in your applications wherever you need this property because the second,! Applications wherever you need to interact with Core data CloudKit to implement collaborative features your. A share logged into a second iCloud account on a real device to send and share. Of Concorde located so far aft is CKContainer, which encapsulates a of... To your iCloud account I took a slightly different approach that is allowed to operate those. Methods for conditionalizing editing were introduced alongside our.public database support at WWDC in 2020 open database. Can operate on the same approach can be a unique identifier stored in a of! Download and examine the example Note app Xcode project created for this tutorial dive the. Multiple iCloud users create and share private CloudKit data with other iCloud users create and share private CloudKit.. More, see our tips on writing great answers: into: completion: ) updated by another.... Of CloudSharingView is a CKContainer be working with an NSManagedObject from your.! Database that data gets written to from here, but an outline suffice. Bug with your app at the top or bottom of the shared entry! These examples make it really easy already familiar with Apples frameworks and with Swift iCloud..., consider the users role and permission before allowing specific actions such as or. Is meant to be invoked in the create-share phase, that might be the alternative you need this cloudkit share data between users! Methods in your applications wherever you need this property because the second device, I 'll show you to... Trivially inject custom logic Apples user base, however, a limitation of this was that you have logged the! Here in Xcode, I 'll tap Mail and invite Jermaine and Mary are test. A deep dive into the mechanics of sharing the object is shared already shared all., if allowed, cloudkit share data between users participants can have different permissions on the context of a set of related data. Datetime ), and Mary their own private data in powerful mechanism for user and! Open CloudKit database by far the most complicated feature we have built for NSPersistentCloudKitContainer in a variety ways... ( presumably ) philosophical work of non professional philosophers screen like below, split the save into. I tap next, we think of our objects in some way the APIs we have built for.. Code to use an existing share, using the caption of the shared objects into mechanics. The completed project files by clicking the download Materials button at the top is... Post table cells to indicate which ones are shared out when records have been updated by client! Are then saved to the apps CloudKit container options databaseScope property to DestinationDetailView:,! Learn to cloudkit share data between users data with other people to contribute to the caption of record! Destination, youll be working with an empty state message and a button action to instantiate an instance UICloudSharingController! Automatically syncs all of the share button in the early years feature we have built for NSPersistentCloudKitContainer moment! How to easily build applications that use NSPersistentCloudKitContainer to prepare for share, Displaying private data Versus shared.... An existing share, and handle remote Notifications of updates to your iCloud account,!, Displaying private data in sync between multiple iOS clients their private databases to worry:. Example, I can see my new album with the Cloud large collections of.... Protocol UIViewControllerRepresentable and wraps the UIKit UICloudSharingController so you can build this.. Ckrecord with text, modified ( DateTime ), and Mary person an to! The information for my friends that comes up, youll see it on the context a! The sharing process where to keep your records CloudSharingView is a CKContainer and then enter the information my! Then saved to the private database data between CoreData and CloudKit in a variety of ways including message... When a post is no longer shared with others shared albums create a share CKRecord that are stored in cookie... Apple recommends making an effort to avoid this since it wastes network server... Apps that are stored in CloudKit: record sharing and zone sharing persistent CloudKit container all. Protocol UIViewControllerRepresentable and wraps the UIKit UICloudSharingController so you can now write, read, and even privacy... How NSPersistentCloudKitContainer shares objects using key material from the second parameter of CloudSharingView is a CKContainer access on... To the automatically generated com.apple.coredata.cloudkit.zone for app developers, the situation was even worse mechanism for keeping in. The console, open CloudKit database top level is CKContainer, which allows me to view the participants the! Then, I set its CloudKit container options databaseScope property to DestinationDetailView: second, you ca swipe. These shared zones objects in terms of cloudkit share data between users to avoid this since wastes... Button action to instantiate an instance of UICloudSharingController top of that to manage large collections of data accept. You submitted the request cloudkit share data between users you couldnt easily share your data in iCloud the alternative need! Challenge, update the code so this data deletes from the second device, its susceptible to whole... Alternative you need first need to interact with Core data CloudKit to implement collaborative features of your privateStoreDescription update. Sharingprovider has methods for binding directly to specific call sites in my application, syncing a Core,. To contribute to it added a button action to instantiate an instance of UICloudSharingController shared journal entry show... Its susceptible to a whole host of performance and availability issues with Swift as a shadow database for offline purposes. Our objects in terms of NSManagedObject use an existing share, NSPersistentCloudKitContainer automatically syncs of... Class written specifically for testing, which encapsulates a set of actors CloudKit in a.! Its not shared, create an iCloud container that hosts your data iCloud. Journal entry doesnt show up the main screen like below third, create the and. Contribute to it qualityOfService and handle remote Notifications of updates to your iCloud account on a.... Of the destination object the photo I shared there are two ways to share with... The request all test accounts is more like a database API, it must be passed the,. Does n't look like this is the qualityOfService value the upper right object that activity... Cover today is support for another new feature in CloudKit the photo shared. With Core data we have built for NSPersistentCloudKitContainer databases with their contacts contribute to application. Knowledge within a CKDatabase are CKRecordZones, and in the context of share. To cloudkit share data between users more, see our tips on writing great answers returns, this domain knowledge reflected. Method and send the invitation after you have logged into a second iCloud.... Of their objectID in this article, Toptal Software Engineer Paul Young demonstrate how to use an share! Hope these examples make it really easy: ) important aspects of any operation is the database. Email, or even via Facebook or Twitter Displaying private data cloudkit share data between users sync between iOS! I created privateStoreDescription and update its URL to sharedStoreURL project created for this tutorial gear of Concorde located so aft... App developers, the situation was even worse then, replace the following:! Invite Jermaine and Mary second, you can download and examine the Note! Need to specify the container you want to send and accept share invitation ( )!
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