func windowScene()

in Sharing/App/SceneDelegate.swift [25:55]


    func windowScene(_ windowScene: UIWindowScene, userDidAcceptCloudKitShareWith cloudKitShareMetadata: CKShare.Metadata) {
        guard cloudKitShareMetadata.containerIdentifier == Config.containerIdentifier else {
            print("Shared container identifier \(cloudKitShareMetadata.containerIdentifier) did not match known identifier.")
            return
        }

        // Create an operation to accept the share, running in the app's CKContainer.
        let container = CKContainer(identifier: Config.containerIdentifier)
        let operation = CKAcceptSharesOperation(shareMetadatas: [cloudKitShareMetadata])

        debugPrint("Accepting CloudKit Share with metadata: \(cloudKitShareMetadata)")

        operation.perShareCompletionBlock = { metadata, share, error in
            let rootRecordID = metadata.rootRecordID

            if let error = error {
                debugPrint("Error accepting share with root record ID: \(rootRecordID), \(error)")
            } else {
                debugPrint("Accepted CloudKit share for root record ID: \(rootRecordID)")
            }
        }

        operation.acceptSharesCompletionBlock = { error in
            if let error = error {
                debugPrint("Error accepting CloudKit Share: \(error)")
            }
        }

        operation.qualityOfService = .utility
        container.add(operation)
    }