SwiftUI Transformable: support drag to Finder on macOS

I am trying to support dragging out a 'file' object from my app into Finder, on macOS. I have my object conform to Transferable and the files are saved on disk locally, so I just want to pass it the URL. This works fine when dragging out to other apps, like Notes or Mail, but not in Finder. I setup a ProxyRepresentation as well, as suggested by another thread, but it doesn't seem to help. Is there any other setup I need to do in the Xcode project file for it to work, or is there something else that I'm missing?

@available(iOSApplicationExtension 17.0, macOSApplicationExtension 14.0, *)
extension FileAttachments: Transferable {

    public static var transferRepresentation: some TransferRepresentation {

        FileRepresentation(exportedContentType: UTType.content) { content in
            SentTransferredFile(content.fullFileURL(), allowAccessingOriginalFile: false)
        }
        .exportingCondition { file in
            if let fileUTI = UTType(filenameExtension: file.fullFileURL().pathExtension), let fileURL = file.fullFileURL() {
                print("FileAttachments: FileRepresentation exportingCondition fileUTI: \(fileUTI) for file: \(fileURL)")
                return fileUTI.conforms(to: UTType.content)
            }
            return false
        }
        .suggestedFileName{$0.fileRenamedName}
        
        ProxyRepresentation { file in
            if let fileURL = file.fullFileURL() {
                print("FileAttachments: ProxyRepresentation returning file")
                return fileURL
            }
            return file.fullFileURL()!
        }
    }
}

@zulfishah Please see Adopting drag and drop using SwiftUI and add a UTTypeTagSpecification dictionary in the Info.plist file to define the file extension or MIME types for your type

SwiftUI Transformable: support drag to Finder on macOS
 
 
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