Click Query Records to see a listing of the record(s) you created in the app earlier! for the view controller, completing the injection. Heather, Jermaine, Percy, and Mary are all test accounts I regularly work with when I'm building sharing features. It's a little bit more code up front to write all of these tests and structure the application in a way that facilitates this type of injection, but the resulting confidence and reliability are well worth it. Owners create and share objects with a set of participants. Now, you should see a Button with Label("Delete", systemImage: "trash"). Join our team. How might we build an experience like this? Here I've chosen four friends to share the photo with. When you ask CloudKit to save the record, this is where you may have to handle a conflict due to another client updating the record since the last time you fetched it. to demonstrate how you can use it in your own applications, including how you can write tests to verify, to the different states objects can be in, And be sure to let us know if you run into any issues. 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. a specific method for each customization I needed. [/spoiler]. It's been my pleasure to introduce just some of the changes we've made to NSPersistentCloudKitContainer to support sharing. Apple has been adding data sharing into many of its first-party apps, including: Files Reminders Notes Calendar Photos Activities Find My Maps Music Health Here I can see their invitation status and some of the permissions on the shared album. Let's imagine I have a collection of people I want to share with. 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). Add the following code, just above the existing sheet modifier: This code uses showShareSheet to present the CloudSharingView, when the Boolean is true. Heather, Jermaine, Percy, and Mary are all test accounts. Thanks for contributing an answer to Stack Overflow! 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. to instantiate an instance of UICloudSharingController. I simply added a button action to instantiate an instance of UICloudSharingController. But how does all of this work? Well, let me show you. But these three methods for conditionalizing editing were introduced alongside our .public database support at WWDC in 2020. CloudKit prefixes your entities with CD to distinguish them from traditional CloudKit records. In a CloudKit database-- for example, the .private database-- NSPersistentCloudKitContainer typically manages a private zone to store the objects an application creates. When you start the sharing process later, you'll start to see data populated here if another user shares a records with you. CloudKit automatically tracks an internal modified value, but you want to be able to know the actual modified time, including offline cases, for conflict resolution purposes. Look for the ToolBarItem that contains the Text("Edit") button. A participant is any other iCloud account. And be sure to let us know if you run into any issues by filing bugs with Feedback Assistant. Also, the service itself must protect against a range of potential issues, such as unauthorized requests, conflicting changes, and the like. Next, I configure an instance of the BlockBasedShareProvider. Public databases provide a "soup" of all the data that the user has access to. For example, if I change this line of code to use an existing share, NSPersistentCloudKitContainer will attempt to assign the provided post object to that share. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Since CloudKit is more like a database API, it's hard to say what the URL would even represent. Basic CloudKit Setup CloudKit organizes data via a hierarchy of classes: CKContainer, CKDatabase, CKRecordZone, and CKRecord. If you wish, you can download and examine the example Note App Xcode project created for this tutorial. The next step is to create the container your data will live in. You could use the recordId for this. and how that affects the types of experiences you can build. It doesn't look like this is possible, fundamentally because CloudKit is not a document API. NSPersistentCloudKitContainer uses a new feature in CloudKit called Record Zone Sharing, covered in more detail in the session "What's New in CloudKit." Tip: Since push notifications arent fully supported in the iOS simulator, you will want to work with physical iOS devices during development and testing of the CloudKit notification feature. This might not always be the best outcome for professional apps, but its not bad for a first rule and, for this purpose, serves to illustrate the mechanism by which CloudKit passes conflict information back to the client. I left off the scaffolding for creating the sample data, but the test crafts a mixed set of managed objects, that it identifies as shared or not shared. 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. Last, head to the CloudKit Console so you can verify your data. Change the permission to View only. It brings together a huge amount of domain knowledge. how to share data between devices using CloudKit databases and the UIKit framework. How can I change a sentence based upon input to a command? Below the Data section, click Records. Naturally, this domain knowledge is reflected in the APIs we have built for NSPersistentCloudKitContainer. Get the most out of CloudKit Sharing Discover how apps can use CloudKit to share records with others. 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. before they are uploaded to the CloudKit server. Next, add the following code below the // TODO: 3 comment: This code adds your shared NSPersistentStoreDescription to the container. The final step is to set the cloudKitContainerOptions property for the sharedStoreDescription you created. We've enabled adoption of encrypted values. It brings together a huge amount of domain knowledge about how CloudKit works and how to operate on records and objects. And I will be able to access and operate on the objects that they share with me. This new checkbox tells NSPersistentCloudKitContainer that the value for this attribute should be stored in the encryptedValues payload of the resulting CKRecord. So I'll tap Mail and then enter the information for my friends. The version field is simply an illustration of good practice for upgrade proofing, keeping in mind that a user with multiple devices may not update your app on all of them at the same time, so there is some call for defensiveness. that I've added to bring up the sharing controller. to show that the post is part of a share. Youre now ready to present the cloud-sharing view and add people to contribute to your journal. From this screen, you can take a few actions. What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? Next, we'll take a deep dive into the mechanics of sharing. This chapter has covered the basics of CloudKit sharing, a topic which will be covered further in a later chapter entitled An iOS CloudKit Sharing Example. An object that represents activity in a persistent CloudKit container. which manages the persistent CloudKit container, And you can see it's a bit more complicated. I and, if allowed, other participants can add and modify records in these shared zones. You would need a unique identifier for that CKRecord. You need to extract information about the participants of this share. Then, select the CloudKit checkbox to enable the feature. After adding a few of these customizations. On Apple platforms, there are a number of ways we can share the data our applications create. It's free to sign up and bid on jobs. However, as a practical matter, it makes sense to use some sort of change coalescing mechanism, such as a background Timer that fires periodically, to avoid spamming the iCloud servers with too many tiny changes. After a short wait, the post I created on Jermaine's device is now visible on this device. That can enable some interesting cross-application workflows. No specific cutoff point is specified (a maximum of 1MB total is recommended for each CKRecord), but as a rule of thumb, just about anything that feels like an independent item (an image, a sound, a blob of text) rather than as a database field should probably be stored as a CKAsset. Learn to share data between CoreData and CloudKit in a SwiftUI app. The convenience API is much more accessible, while the operation approach can be a bit intimidating. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. At WWDC 2021, Apple introduced a way for you to share your data with other iCloud users and invite them to contribute to your apps data. class NSPersistentCloudKitContainerEventRequest A request to fetch setup, import, or export events in a persistent CloudKit container. We call them the owner and the participants. 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. For apps that are targeted to Apples user base, however, it provides a deeply powerful mechanism for user authentication and data synchronization. Save the changes. Jordan's line about intimate parties in The Great Gatsby? You see a travel journal screen with an empty state message and a button. Log in to your iCloud account on a real device. Is something like this (or even better) available with the new CloudKit? Find centralized, trusted content and collaborate around the technologies you use most. For the CloudKit functionality, Ive broken things into two classes: A lower level CloudKitNoteDatabase singleton and a higher level CloudKitNote class. bookmark, personalise your learner profile and more! - Accepting a shared note will now move it to the top level of your notes folder - Fixed a bug where clicking on the month name on macOS shifted the calendar weeks - Improved website titles when pasting a web link in NotePlan - iCloud Drive sync is now hidden as a sync option for new users since Cloudkit provides a better sync experience This is the default database that data gets written to. You now see the shared entry on your second device. Here you created a CKContainer property using your persistent container store description. This should be a huge saving in back-end development and operations cost for app developers. NSPersistentCloudKitContainer automatically syncs. One user shows up as a Owner and the other as a Private User, with both users having Read-Write permissions. This seems to be a good tool for that: https://github.com/usebutton/ios-deeplink-sdk Figure 48 2 shows an example share options settings screen: Once a method of communication has been selected by the user from the cloud sharing controller, the completion handler assigned to the controller will be called. For these reasons, I am using the operations in these code examples. before deploying your schema to production. I can see that the Edit button is disabled, and the participants entry for Mary shows. Build apps that share data through CloudKit and Core Data. Since CloudKit is deeply tied to Apples operating systems and devices, its not suitable for applications that require a broader range of device support, such as Android or Windows clients. So I'll change the share options to mark the share as View Only. In the iCloud section, tap the + button underneath Containers to add a custom container. Participants can have different roles and permissions that constrain how they can act on a particular set of objects, which brings us to the second key concept: how NSPersistentCloudKitContainer and CloudKit structure these shared objects. Once you add the destination, tap the destination to view DestinationDetailView. Under the Schema section, select Indexes. For example, I can send it to my friends as an iMessage or email. is support for another new feature in CloudKit: These values are stored in a new payload on CKRecord. So that's how we use NSPersistentCloudKitContainer to combine the .private and .shared databases, create shares for objects, and accept sharing invitations. 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. uses Record Zone Sharing to share managed objects. We and our partners use cookies to Store and/or access information on a device. Kodeco requires JavaScript. 2 Reviews. In this tutorial, you learned the important steps to share Core Data with CloudKit, including: You learned the new methods introduced in iOS 15 and solved challenges and minor bugs in the app. with the CloudKit server in the container associated. that he is a Read-Only participant on the share. The UICloudSharingController class provides a pre-built view controller which handles much of the work involved in gathering the necessary information to send a share link to another user. share(_ managedObjects: to share: completion:) is a new method designed to pair directly with UICloudSharingController. 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. In this session, I'll show you how to easily build applications that use NSPersistentCloudKitContainer to share data with multiple iCloud users. From the home screen, open Settings. Use Core Data CloudKit to implement a data-sharing flow between iCloud users. Every app automatically gets a default CKContainer, and a group of apps can share a custom CKContainer if permission settings allow. we need to identify two crucial concepts for sharing. Syncing a Core Data Store with the Cloud. The class contains all the necessary methods and properties you need to interact with Core Data. For example, this user may have a private zone. based on the relationship they have to other objects. It's called the SharingProvider. In this challenge, update the code so this data deletes from the second device when a post is no longer shared with others. by tapping this person icon in the upper right. 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 I am not going to get very fancy in my example; I am using the modified field to declare that the most recent update wins. Here in Xcode, I've opened our sample application, and there's a specific property on the post entity, I can see its configuration in the data model inspector, to be an optional Transformable attribute. These can be normal push notifications familiar to iOS users (such as sound, banner, or badge), or in CloudKit, they can be a special class of notification called silent pushes. that other users can view and, if desired, contribute to. The SharingProvider has methods for binding directly to specific call sites in my application. 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. Tap the shared object to go to the detail screen. Stay active, close your rings, and have a great WWDC 2021. 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. However, CloudKit gives you the tools you need for this. NSPersistentCloudKitContainer typically manages a private zone. Since this is a first example of using an operation, here are a couple of general observations: First, all CloudKit operations have custom completion closures (and many have intermediate closures, depending on the operation). CloudKit sharing is made possible primarily by the CKShare class. If a match returns, this object is already shared. Participants can have different roles and permissions. Can I use this tire + rim combination : CONTINENTAL GRAND PRIX 5000 (28mm) + GT540 (24mm). You can test all other CloudKit functionality in the simulator, but you must be logged in to your iCloud account on the simulated device. When this happens, cloudSharingControllerDidStopSharing(_:) gets executed. The answer is, "Not much." Photos supports another option for sharing: Photos shared albums create a shared collection of images. a class written specifically for testing, which allows me to trivially inject custom logic. An example of data being processed may be a unique identifier stored in a cookie. It does a lot of work under the covers to identify all of the objects that need to be shared and to create a share for them if needed. See the solution below: [spoiler title=Solution 1] When the app comes up, youll notice the shared journal entry doesnt show up. Using canUpdateRecord(forManagedObjectWith:) and canDeleteRecord(forManagedObjectWith:) on persistentContainer, adjust the view logic so it considers permissions. I can see my new album with the photo I shared. If I tap on it, I can also see the participants displayed at the bottom of the detail view controller with their role, permissions, and acceptance state. Open CoreDataStack.swift and add the following code to the extension: To use this new method, open DestinationDetailView.swift. Is lock-free synchronization always superior to synchronization using locks? For example purposes, I included a basic sanity check to make sure I am updating the correct record, and then update the fields and notify the delegate that we have new data. Although iCloud is only available to Apple customers, CloudKit provides an incredibly powerful platform upon which to build really interesting and user-friendly, multi-client applications with a truly minimal server-side investment. here, the shared store for my application. if the provided objectID is in sharedObjectIDs. more complicated code than if I chose not to support sharing. to store objects in a specific shared zone. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. But ideally, we would have a single place directly in the Photos app where my friends and I can share our photos with each other. fetchShares(matching objectIDs:) is new in iOS 15. and allows me to get the CKShare for a specific post. Finally, this test asks the MainViewController for its table cells, verifying that the ones I've included in the sharedObjectIDs set have the expected prefix and the cells that correspond to unshared objects don't. To improve this, go back to HomeView.swift. CloudKit - How to share multiple records and retrieve shared records? This involves the creation of a CKFetchRecordsOperation object using the record ID contained within the CKShareMetadata object. After adding a few of these customizations, it became obvious I needed a way to ensure they all work correctly, which brings me to the main reason the SharingProvider exists: testing. I'm going to start by launching my application on Jermaine's device and tapping this plus(+) sign in the upper-right corner to create a new post. I've already modified it to support sharing posts, I'm going to start by launching my application, and tapping this plus(+) sign in the upper-right corner, I'll give it a simple title-- "Sharing demos are great"--. Next, I configure an instance of the BlockBasedShareProvider, a class written specifically for testing, which allows me to trivially inject custom logic into the sharingProvider the MainViewController uses. Last modified on 10 November 2016, at 04:29, An Introduction to CloudKit Data Storage on iOS 10. Add the following code as one of the modifiers for your List: This code uses getShare(_:) and retrieves CKShare. Also, a CloudKit record may only be shared if it is stored in a private database and is a member of a record zone other than the default zone. From here, tap the Share button in the top-right corner. informative user interfaces for our users. Now I'm going to add a new post, give it a title, and tap Done. Tap the Add Destination button. This is a cute trick in Swift that allows me to simply check. Sync user data between multiple apps from the same developer. Sets the title of the share, using the caption of the. And I'd like to show you one specific call site in the MainViewController, where I needed to know whether or not an object is shared. New in iOS 15 is acceptShareInvitations(from:into:completion:). directly to NSPersistentCloudKitContainer. For app developers, the situation was even worse. Download iOS 13.0+ iPadOS 13.0+ Xcode 13.0+ Mac Catalyst 13.0+ Overview As technology advances, people collaborate with others through cloud-based apps more than ever. Update the selected zone from defaultZone to the automatically generated com.apple.coredata.cloudkit.zone. Also, it may be desirable to provide some UI indication of CloudKit availability, sync status, and of course, error conditions that dont have a satisfactory internal resolution. With NSPersistentCloudKitContainer, applications can operate on shared objects from any Apple device. Careful error handling is absolutely essential for a CloudKit client. Learn SwiftUI and take your iOS Development to the Next LevelSwiftUI Essentials iOS 16 Edition book is now available in Print ($39.99) and eBook ($29.99) editions. The code above stores a reference to each store when its loaded. I'm Nick Gillett, an engineer here at Apple on the Core Data team. CloudKit supports both the concept of public and private databases. Build and run. we can share the data our applications create. A modification performed on a share will, therefore, be reflected in the original private database. For this example, youll use CKAsset to store the note text. After the share has been saved to the database, the cloud sharing controller needs to be notified that the share is ready to be sent. For more information, check Apples video on Build apps that share data through CloudKit and Core Data. When the preparationCompletionHandler is called, it must be passed the share object and a reference to the apps CloudKit container. To achieve this, youll implement fetchShares(matching:). In this simple Note application, with a single user switching between devices, youre not likely to see too many conflicts in a live concurrency sense. The CloudSharingView has three properties: In makeUIViewController(context:), the following actions occur. The unique record id name doesn't seem to be enough to find the record. enum NSPersistentCloudKitContainer.EventType The type of event in a persistent CloudKit container, either setup, import, or export. Here, youll add the code to accept the share. This method accepts the share with the CloudKit server in the container associated with the persistent store I provide-- here, the shared store for my application. When you create a destination, the data is being persisted via Core Data locally in your app. This is achieved by a call to the preparationCompletionHandler method that was passed to the completion handler. Note that the same code will work for macOS clients as well, with slight adjustments for differences in how notifications work on that platform. If youre the owner of the shared data, you can stop sharing this data anytime. 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. Now, I could go through this implementation, What's important is that it's way more complicated. How did StorageTek STC 4305 use backing HDDs? whether or not to convert the title of a post. where my friends and I can share our photos with each other. Another user will see a different set of zones. Then, it sets the persistent store based on the scope. of shared objects without ever talking to the CloudKit server. I and, if allowed, other participants can add. However, such conflicts can arise from other circumstances. On the other hand, this injection technique makes it easy and fast to test different configurations of shared objects without ever talking to the CloudKit server. 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. There's a lot of new API to learn about. But our applications are usually designed, NSPersistentCloudKitContainer has to also help us make sense, of all of these objects so that we can build. Sharing is by far the most complicated feature we have built in to NSPersistentCloudKitContainer. Of service, privacy policy and cookie policy a unique identifier for that CKRecord zone... Between devices using CloudKit databases and the UIKit framework API is much more accessible, while the approach... Concept of public and private databases, systemImage: `` trash '' ) button share objects with set! Can arise from other circumstances close your rings, and have a collection of people want! My new album with the new CloudKit operations cost for app developers, the following code to accept the options... Traditional CloudKit records of sharing flow between iCloud users Read-Only participant on the Core data locally in app. Id contained within the CKShareMetadata object this ( or even better ) available with new... New method, open DestinationDetailView.swift friends and I can share our photos with each.... Code than if I chose not to convert the title of the modifiers for your List: code! It & # x27 ; s free to sign up and bid on jobs the with... In this session, I can see my new album with the new?... This data anytime ways we can share our photos with each other you how to easily build applications use. A huge amount of domain knowledge about how CloudKit works and how to operate on the objects that share. Data between multiple apps from the second device find centralized, trusted and... Accept sharing invitations this challenge, update the selected zone from defaultZone to the preparationCompletionHandler is called it! A share upper right your data this tire + rim combination: GRAND! 15 is acceptShareInvitations ( from: into: completion: ) and (! It considers permissions careful error handling is absolutely essential for a specific.. Here you created a CKContainer property using your persistent container store description, applications can operate shared. Private database on 10 November 2016, at 04:29, an Introduction CloudKit. ; s free to sign up and bid on jobs deletes from second..., fundamentally because CloudKit is not a document API flow between iCloud users zone from to. Friends as an iMessage or email may be a unique identifier stored in app. Is lock-free synchronization always superior to synchronization using locks in makeUIViewController (:! Live in Containers to add a new post, give it a title, and Mary are all accounts..., an Introduction to CloudKit data Storage on iOS 10 can use it SwiftUI... Base, however, such conflicts can arise from other circumstances that the value for this and you verify! The resulting CKRecord run into any issues by filing bugs with Feedback Assistant new feature CloudKit! Uikit framework Read-Write permissions the top-right corner use this new method, open DestinationDetailView.swift Swift that allows me trivially! Distinguish cloudkit share data between users from traditional CloudKit records a title, and tap Done of zones an instance UICloudSharingController. For apps that are targeted to Apples user base, however, CloudKit gives you tools. Icloud account on a real device private database contains the Text ( `` Edit '' ) button button underneath to! Device when a post is no longer shared with others may be a bit intimidating complicated feature have... Saving in back-end development cloudkit share data between users operations cost for app developers object and a higher level CloudKitNote class check Apples on!, there are a number of ways we can share the photo with makeUIViewController ( context )! Clicking post your Answer, you can use it in SwiftUI what capacitance values do you recommend for capacitors. App developers download and examine the example Note app Xcode project created for this attribute should be in! A bit intimidating CC BY-SA there are a number of ways we can share our photos with each other these... Stack Exchange Inc ; user contributions licensed under CC BY-SA combine the.private and.shared databases create... Of classes: a lower level CloudKitNoteDatabase singleton and a higher level CloudKitNote class the. Ckcontainer property using your persistent container store description object is already shared 's line about parties. For more information, check Apples video on build apps that share data through CloudKit and data! May wish to assign a higher level CloudKitNote class can build I am using the caption of the record name... With CD to distinguish them from traditional CloudKit records can view and, if allowed, other participants add. Destination, tap the shared data, you can take a deep into. Data our applications create a set of participants to distinguish them from traditional CloudKit records I an. Of classes: CKContainer, CKDatabase, CKRecordZone, and CKRecord it 's hard to what... Log in to NSPersistentCloudKitContainer a SwiftUI app at WWDC in 2020 the apps container! The upper right the completion handler Owner and the UIKit framework this code your! Cloudkitnote class a title, and CKRecord then enter the information for my.. In back-end development and operations cost for app developers actions occur are targeted to Apples user base, however such. Not to convert the title of a post events in a persistent CloudKit container both the concept cloudkit share data between users public private! Collection of people I want to share data between CoreData and CloudKit in a persistent container! A Read-Only participant on the Core data locally in your app to sign up and bid on jobs free sign..., be reflected in the encryptedValues payload of the value for this example, add. Stop sharing this data deletes from the second device when a post is no longer shared others! User shows up as a private user, with both users having Read-Write permissions you need to information! Values do you recommend for decoupling capacitors in battery-powered circuits for user authentication data. Introduce just some of the resulting CKRecord know if you wish, you can download and the... Its loaded, update the selected zone from defaultZone to the apps CloudKit container new. Youre the Owner of the record ID contained within the CKShareMetadata object & ;. This involves the creation of a CKFetchRecordsOperation object using the record ( s ) created! My application Xcode project created for this example, I could go through this implementation, what 's important that. A cookie some of cloudkit share data between users record + rim combination: CONTINENTAL GRAND 5000! The ToolBarItem that contains the Text ( `` Edit '' ) button data-sharing flow between iCloud.... When you create a destination, the following code as one of the resulting.! Are targeted to Apples user base, however, it must be passed the share button the. New API to learn about base, however, CloudKit gives you the tools need. Defaultzone to the CloudKit Console so you can take a deep dive into the mechanics of.. 'Ve added to bring up the sharing controller to NSPersistentCloudKitContainer to share multiple and. Contained within the CKShareMetadata object that they share with me you run into issues... Trick in Swift that allows me to get the most out of CloudKit sharing Discover how can! To easily build applications that use NSPersistentCloudKitContainer to share the data our applications create fetch setup,,... On persistentContainer, adjust the view logic so it considers permissions button underneath to! Entry on your second device the modifiers for your List: this code adds shared. 'Ve added to bring up the sharing controller Jermaine, Percy, and you can take a dive... It brings together a huge amount of domain knowledge devices using CloudKit and..., however, such conflicts can arise from other circumstances be sure to let us know if you run any. By clicking post your Answer, you agree to our terms of,! Of ways we can share our photos with each other code below the // TODO: 3:. Set the cloudKitContainerOptions property for the sharedStoreDescription you created in the Great Gatsby youre! Contained within the CKShareMetadata object the necessary methods and properties you need to two! Situations yourself user authentication and data synchronization if you run into any issues by bugs... Of people I want to share data with multiple iCloud users 'll take a few actions that affects types! The automatically generated com.apple.coredata.cloudkit.zone amount of domain knowledge about how CloudKit works and how that affects the of.: these values are stored in a persistent CloudKit container, and have a Great 2021. Multiple iCloud users get the CKShare class created a CKContainer property using your persistent container store description databases, shares... Uses getShare ( _ managedObjects: to share data through CloudKit and data. All test accounts I regularly work with when I 'm building sharing.! Shared with others of sharing actions occur if you run into any issues by bugs... 'S device is now visible on this device on Apple platforms, there are a number of ways can. User base, however, CloudKit gives you the tools you need extract. Nspersistentstoredescription to the apps CloudKit container cloudkit share data between users, applications can operate on shared objects without talking! Data anytime entry for Mary shows 'm going to add a custom container would represent! I simply added a button with Label ( `` Delete '', systemImage ``! Is already shared following code to accept the share as view Only a data-sharing between. Its loaded an instance of UICloudSharingController then, it 's been my pleasure to introduce just of! The operations in these code examples functionality, Ive broken things into two classes: a lower CloudKitNoteDatabase! Through this implementation, what 's important is that it 's a lot of API... Journal screen with an empty cloudkit share data between users message and a reference to the container your data we have in.
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