I'm running into an issue trying to create a link to fileImporter as part of a list of options. I have an enum of options that will be presented in a sidebar-style list menu: enum MenuOption: Identifiable, CaseIterable { var id: Int { self.hashValue } case import case optionB case optionC case optionD case optionE @ViewBuilder var destination: some View { switch self { case .import: ImportView(isPresented: .constant(true), progress: ImportProgress()) case .optionB: OptionBView() // etc } } And I am iterating over the enum as follows: struct SidebarMenuView: View { @State private var selection : MenuOption? = nil var body: some View { List(selection: $selection) { ForEach(MenuOption.allCases) { option in Button(action: { self.selection = option} ) { option.label } .sheet(item: $selection) { sheet in sheet.destination } } } } } However, presenting fileImporter as its own view causes the interface to crash. It has to be attached to something as a view modifier. The workaround suggested on SO is to attach it to Color.clear: struct ImportView: View { @Binding var isPresented: Bool @ObservedObject var progress: ImportProgress var body: some View { Color.clear .fileImporter( isPresented: $isPresented, allowedContentTypes: [ ... ], allowsMultipleSelection: true) { result in if let urls = try? result.get() { do { // stuff } } } } But the result of is this that, after fileImporter has been dismissed, there's an empty sheet still displayed which has to be dismissed separately, and I can't find a way around that.

I'm working on a media metadata tagging library, and the only source I can find for a list of the pre-defined genres in use with iTunes/Quicktime is on the ExifTool website for QuickTime GenreID and I have no way of knowing how current it is. If possible, I would rather use whatever enum Apple already provides for this, if it's available, but I haven't been able to find it. Can anyone point me in the right direction?

I'm creating a Swift library for handling metadata tagging and adding/modifying chapters in .m4a/.m4b audio files. It's not intended to re-encode, so I need to be able to use the `AVAssetExportPresetPassthrough`.I was doing fine with the metadata using AVAssetExportSession, but if there's a way to add an `[AVTimedMetadataGroup]` array to an export session, I haven't found it.I've seen a lot of older posts in various places in regarding adding timed metadata to video and saving using AVAssetWriter in Objective-C, but I'm having trouble implementing them in Swift and I'm just not familiar with using AVAssetWriter. None of the methods I've tried have worked.// get the source audio track let audioTrack = asset.tracks(withMediaType: .audio).first let audioDesc = audioTrack?.formatDescriptions as! CMFormatDescription // turn it into an Input let audioInput = AVAssetWriterInput( mediaType: .audio, outputSettings: nil, sourceFormatHint: audioDesc) var writer = try AVAssetWriter(outputURL: outputUrl, fileType: .m4a) var timedMetadata: [AVTimedMetadataGroup] = [...] for group in timedMetadata { let desc = group.copyFormatDescription() // create text input let textInput = AVAssetWriterInput(mediaType: .text, outputSettings: nil, sourceFormatHint: desc) textInput.marksOutputTrackAsEnabled = false textInput.expectsMediaDataInRealTime = false let metadataAdaptor = AVAssetWriterInputMetadataAdaptor( assetWriterInput: textInput) textInput.requestMediaDataWhenReady(on: DispatchQueue(label: "metadataqueue", qos: .userInitiated), using: { metadataAdaptor.append(group) }) if audioInput.canAddTrackAssociation( withTrackOf: textInput, type: AVAssetTrack.AssociationType.chapterList.rawValue) { audioInput.addTrackAssociation( withTrackOf: textInput, type: AVAssetTrack.AssociationType.chapterList.rawValue) } if writer.canAdd(textInput) { writer.add(textInput) } } if writer.canAdd(audioInput) { writer.add(audioInput) }So basically, where I'm starting out from, I've got an audio asset, an `[AVMetadataItem]` array, and an `[AVTimedMetadataGroup]` array, and I need to get them all into a single file at pass-through quality. I know what I have here is wrong, but I don't know how to fix it. Currently it writes a corrupt, zero-byte file.