Hello, currently working on a shareplay feature that allows users to pull 3d models from icloud and view it via volumes/immersive space on the vision pro. Was able to get the sharing working with multiple windows recently so now all that's left is to be able to sync/share the model in the SharePlay session. As I understand it, we should generally use GroupSessionMessenger for commands and light data like model positioning/syncing properties. Whereas for bigger pieces of data (images/videos/models), we should send these through GroupSessionJournal which the group session manages and syncs it for all users in the call. I have a button to get the current user's model data and add it to the journal via /// modelData is type `Data` try await journal.add(modelData) I have also set up a task to observe/receive updates to the journal's attachments in when receiving a group session. for await groupSession in MyModelActivity.sessions() { ... tasks.insert { Task { for await attachments in journal.attachments { for attachment in attachments { do { let modelData = try await attachment.load(Data.self) // throws error here - `notSupported` let modelUrl = writeModelDataToTempDirectory(modelData: modelData) self.modelUrlToLoadForGroupSession = modelUrl } catch let error { print("Error: \(error)") } } } } } } Not quite sure why I'm running into an error being thrown when attempting to load the attachment data on the other devices, any thoughts? The documentation for add(_:) and load(_:) say that the attachment should conform to Transferable but Data.Type should already conform to Transferable

How to display the user's own persona in a view

I followed the WWDC video to learn Sharplay. I understood the first creation of seats, but I couldn't learn some of the following content very well, so I hope you can give me a list code. The contents are as follows: I have already taken a seat. struct TeamSelectionTemplate: SpatialTemplate { let elements: [any SpatialTemplateElement] = [ .seat(position: .app.offsetBy(x: 0, z: 4)), .seat(position: .app.offsetBy(x: 1, z: 4)), .seat(position: .app.offsetBy(x: -1, z: 4)), .seat(position: .app.offsetBy(x: 2, z: 4)), .seat(position: .app.offsetBy(x: -2, z: 4)), ] } I hope you can give me a SharePlay Button. After pressing it, it will assign all users in Facetime to a seat with elements quantified in TeamSelectionTemplate. Thank you very much.

Hi all, I had previously posted this on the Media Technologies section but didn't receive any replies so thought I would try my luck here. Apologies if re-posting questions on the forum in a short-ish time span is against the rules, but would greatly appreciate some assistance with the following situation regarding GroupSessionJournal and loading attachments. I'm currently working on a shareplay feature that allows users to pull 3d models from icloud and view it via volumes/immersive space on the vision pro. Was able to get the sharing working with multiple windows recently so now all that's left is to be able to sync/share the model in the SharePlay session. As I understand it, we should generally use GroupSessionMessenger for commands and light data like model positioning/syncing properties. Whereas for bigger pieces of data (images/videos/models), we should send these through GroupSessionJournal which the group session manages and syncs it for all users in the call. I have a button to get the current user's model data and add it to the journal via /// modelData is type `Data` try await journal.add(modelData) I have also set up a task to observe/receive updates to the journal's attachments in when receiving a group session. for await groupSession in MyModelActivity.sessions() { ... tasks.insert { Task { for await attachments in journal.attachments { for attachment in attachments { do { let modelData = try await attachment.load(Data.self) // throws error here - `notSupported` let modelUrl = writeModelDataToTempDirectory(modelData: modelData) self.modelUrlToLoadForGroupSession = modelUrl } catch let error { print("Error: \(error)") } } } } } } Not quite sure why I'm running into an error being thrown when attempting to load the attachment data on the other devices, any thoughts? The documentation for add(_:) and load(_:) say that the attachment should conform to Transferable but Data.Type should already conform to Transferable

I learned Sharplay from the WWDC video. I understand the creation of seats, but I can't learn some of the following contents well, so I hope you can help me. The content is as follows: I have set up the seats. struct TeamSelectionTemplate: SpatialTemplate { let elements: [any SpatialTemplateElement] = [ .seat(position: .app.offsetBy(x: 0, z: 4)), .seat(position: .app.offsetBy(x: 1, z: 4)), .seat(position: .app.offsetBy(x: -1, z: 4)), .seat(position: .app.offsetBy(x: 2, z: 4)), .seat(position: .app.offsetBy(x: -2, z: 4)), ] } It was mentioned in one of my previous posts: "I hope you can give me a SharePlay Button. After pressing it, it will assign all users in Facetime to a seat with elements quantified in TeamSe lectionTemplate.", and someone replied to me and asked me to try systemCoordinator.configuration.spatialTemplatePreference = .custom (TeamSelectionTemplate()), however, Xcode error Cannot find 'systemCoordinator' in scope How to solve it? Thank you!

Hi all, Currently working on a shareplay feature where users pull data from a remote source and are able to share it in a volumetric window with others in the facetime call. However, I am running into an issue where the group activity/session seems to be throwing an error on the recipient of the journal's attachment with the description of notSupported. As I understand it, we use GroupSessionJournal for larger pieces of data like images (like in the Drawing Together example) and in my case 3d models. The current flow goes as follows: User will launch the app and fetch a model from remote. User can start a shareplay instance in which the system captures the volumetric window for users to join and see. At this point, only the original user can see the model. The user can press a button to share this model with the other participants using /// modelData is serialized `Data` try await journal.add(modelData) In the group session configuration, I already have a task listening for for await attachments in journal.attachments { for attachment in attachments { ... } } This task attempts to load data via the following code: let modelData = try await attachment.load(Data.self) /// this is where the error is thrown: `notSupported` I expect the attachment.load(Data.self) call to properly deliver the model data, but instead I am receiving this error. I have also attempted to wrap the model data within an enclosing struct that has a name and data property and conform the enclosing struct to Transferable but that continued to throw the notSupported error. Is there something I'm doing wrong or is this simply a bug in the GroupSessionJournal? Please let me know if more information is required for debugging and resolution. Thanks!

Platform and Version Development Environment: Xcode 16 Beta 3 visionOS 2 Beta 3 Description of Problem I am currently working on integrating SharePlay into my visionOS 2 application. The application features a fully immersive space where users can interact. However, I have encountered an issue during testing on TestFlight. When a user taps a button to activate SharePlay via the GroupActivity's activate() method within the immersive space, the immersive space visually disappears but is not properly dismissed. Instead, the immersive space can be made to reappear by turning the Digital Crown. Unfortunately, when it reappears, it overlaps with the built-in OS immersive space, resulting in a mixed and confusing user interface. This behavior is particularly concerning because the immersive space is not progressive and should not work with the Digital Crown being turned. It is important to note that this problem is only present when testing the app via TestFlight. When the same build is compiled with the Release configuration and run directly through Xcode, the immersive space behaves as expected, and the issue does not occur. Steps to Reproduce Build a project that includes a fully immersive space and incorporates GroupActivity support. Add a button within a window or through a RealityView attachment that triggers the GroupActivity's activate() method. Upload the build to TestFlight. Connect to a FaceTime call. Open the app and enter a immersive space then press the button to activate the Group Activity.

I have an application that is meant to be a "watch together" GroupActivity using SharePlay that coordinates video playback using AVPlayerPlaybackCoordinator. In the current implementation, the activity begins before opening the AVPlayer, however when clicking the back button within the AVPlayer view, the user is prompted to "End Activity for Everyone" or "End Activity for just me". There is not an option to continue the group activity. My goal is to retain the same GroupSession, even if a user exits the AVPlayer view. Is there a way to avoid ending the session when coordinating playback using the AVPlayerPlaybackCoordinator? private func startObservingSessions() async { sessionInfo = .init() // Await new sessions to watch video together. for await session in MyActivity.sessions() { // Clean up the old session, if it exists. cleanUpSession(groupSession) #if os(visionOS) // Retrieve the new session's system coordinator object to update its configuration. guard let systemCoordinator = await session.systemCoordinator else { continue } // Create a new configuration that enables all participants to share the same immersive space. var configuration = SystemCoordinator.Configuration() // Sets up spatial persona configuration configuration.spatialTemplatePreference = .sideBySide configuration.supportsGroupImmersiveSpace = true // Update the coordinator's configuration. systemCoordinator.configuration = configuration #endif // Set the app's active group session before joining. groupSession = session // Store session for use in sending messages sessionInfo?.session = session let stateListener = Task { await self.handleStateChanges(groupSession: session) } subscriptions.insert(.init { stateListener.cancel() }) // Observe when the local user or a remote participant changes the activity on the GroupSession let activityListener = Task { await self.handleActivityChanges(groupSession: session) } subscriptions.insert(.init { activityListener.cancel() }) // Join the session to participate in playback coordination. session.join() } } /// An implementation of `AVPlayerPlaybackCoordinatorDelegate` that determines how /// the playback coordinator identifies local and remote media. private class CoordinatorDelegate: NSObject, AVPlayerPlaybackCoordinatorDelegate { var video: Video? // Adopting this delegate method is required when playing local media, // or any time you need a custom strategy for identifying media. Without // implementing this method, coordinated playback won't function correctly. func playbackCoordinator(_ coordinator: AVPlayerPlaybackCoordinator, identifierFor playerItem: AVPlayerItem) -> String { // Return the video id as the player item identifier. "\(video?.id ?? -1)" } } /// /// Initializes the playback coordinator for synchronizing video playback func initPlaybackCoordinator(playbackCoordinator: AVPlayerPlaybackCoordinator) async { self.playbackCoordinator = playbackCoordinator if let coordinator = self.playbackCoordinator { coordinator.delegate = coordinatorDelegate } if let activeSession = groupSession { // Set the group session on the AVPlayer instances's playback coordinator // so it can synchronize playback with other devices. playbackCoordinator.coordinateWithSession(activeSession) } } /// A coordinator that acts as the player view controller's delegate object. final class PlayerViewControllerDelegate: NSObject, AVPlayerViewControllerDelegate { let player: PlayerModel init(player: PlayerModel) { self.player = player } #if os(visionOS) // The app adopts this method to reset the state of the player model when a user // taps the back button in the visionOS player UI. func playerViewController(_ playerViewController: AVPlayerViewController, willEndFullScreenPresentationWithAnimationCoordinator coordinator: UIViewControllerTransitionCoordinator) { Task { @MainActor in // Calling reset dismisses the full-window player. player.reset() } } #endif }