I'm trying to convert some data, then save it back to Core Data. Sometimes this works fine without an issue, but occasionally I'll get an error Thread 1: EXC_BAD_ACCESS (code=1, address=0x0) It seems to occur when saving the core data context. I'm having trouble trying to debug it as it doesn't happen on the same object each time and can't reliably recreate the error Full view code can be found https://pastebin.com/d974V5Si but main functions below var body: some View { VStack { // Visual code here } .onAppear() { DispatchQueue.global(qos: .background).async { while (getHowManyProjectsToUpdate() > 0) { leftToUpdate = getHowManyProjectsToUpdate() updateLocal() } if getHowManyProjectsToUpdate() == 0 { while (getNumberOfFilesInDocumentsDirectory() > 0) { deleteImagesFromDocumentsDirectory() } if getNumberOfFilesInDocumentsDirectory() == 0 { DispatchQueue.main.asyncAfter(deadline: .now()) { withAnimation { self.isActive = true } } } } } } } update local function func updateLocal() { autoreleasepool { let fetchRequest: NSFetchRequest<Project> = Project.fetchRequest() fetchRequest.predicate = NSPredicate(format: "converted = %d", false) fetchRequest.fetchLimit = 1 fetchRequest.sortDescriptors = [NSSortDescriptor(keyPath: \Project.name, ascending: true), NSSortDescriptor(keyPath: \Project.name, ascending: true)] do { let projects = try viewContext.fetch(fetchRequest) for project in projects { currentPicNumber = 0 currentProjectName = project.name ?? "Error loading project" if let projectMain = project.mainPicture { currentProjectImage = getUIImage(picture: projectMain) } if let pictures = project.pictures { projectPicNumber = pictures.count // Get main image if let projectMain = project.mainPicture { if let imgThumbData = convertImageThumb(picture: projectMain) { project.mainPictureData = imgThumbData } } while (getTotalImagesToConvertForProject(project: project ) > 0) { convertImageBatch(project: project) } project.converted = true saveContext() viewContext.refreshAllObjects() } } } catch { print("Fetch Failed") } } } convertImageBatch function func convertImageBatch(project: Project) { autoreleasepool { let fetchRequestPic: NSFetchRequest<Picture> = Picture.fetchRequest() let projectPredicate = NSPredicate(format: "project = %@", project) let dataPredicate = NSPredicate(format: "pictureData == NULL") fetchRequestPic.predicate = NSCompoundPredicate(andPredicateWithSubpredicates: [projectPredicate, dataPredicate]) fetchRequestPic.fetchLimit = 5 fetchRequestPic.sortDescriptors = [NSSortDescriptor(keyPath: \Picture.dateTaken, ascending: true)] do { let pictures = try viewContext.fetch(fetchRequestPic) for picture in pictures { currentPicNumber = currentPicNumber + 1 if let imgData = convertImage(picture: picture), let imgThumbData = convertImageThumb(picture: picture) { // Save Converted picture.pictureData = imgData picture.pictureThumbnailData = imgThumbData // Save Image saveContext() viewContext.refreshAllObjects() } else { viewContext.delete(picture) saveContext() viewContext.refreshAllObjects() } } } catch { print("Fetch Failed") } } } And finally saving func saveContext() { do { try viewContext.save() } catch { let nsError = error as NSError fatalError("Unresolved error \(nsError), \(nsError.userInfo)") } }

I'm currently sharing data between devices using core data and cloud kit.Currently I have a "Picture" entity which stores the filename, the date it was added and a relation to another entity.The details in core data successfully syncs, how would I go about syncing the image file. The file is saved in the documents folder and I can get its file path usinglet imagePath = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString).appendingPathComponent(imageName)Research seems to show I need to use CKAsset to upload/download the file but how do I go about doing this?

I have a project that currently has data saved locally and I'm trying to get it to sync over multiple devices. Currently basic data is syncing perfectly fine, but I'm having issues getting the images to convert to data. From what I've researched it because I'm using a UIImage to convert and this caches the image It works fine when there's only a few images, but if there's several its a pain The associated code func updateLocalImages() { autoreleasepool { let fetchRequest: NSFetchRequest&lt;Project&gt; = Project.fetchRequest() fetchRequest.predicate = NSPredicate(format: "converted = %d", false) fetchRequest.sortDescriptors = [NSSortDescriptor(keyPath: \Project.statusOrder?.sortOrder, ascending: true), NSSortDescriptor(keyPath: \Project.name, ascending: true)] do { let projects = try viewContext.fetch(fetchRequest) for project in projects { currentPicNumber = 0 currentProjectName = project.name ?? "Error loading project" if let pictures = project.pictures { projectPicNumber = pictures.count for pic in pictures { currentPicNumber = currentPicNumber + 1 let picture : Picture = pic as! Picture if let imgData = convertImage(picture: picture) { picture.pictureData = imgData } } project.converted = true saveContext() } } } catch { print("Fetch Failed") } } } func convertImage(picture : Picture)-&gt; Data? { let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask) let path = paths[0] if let picName = picture.pictureName { let imagePath = path.appendingPathComponent(picName) if let uiImage = UIImage(contentsOfFile: imagePath.path) { if let imageData = uiImage.jpegData(compressionQuality: 0.5) { return imageData } } } return nil }```

I have the below code for my view's body Currently when I go to the ItemDetailView View and then press back to return to this view, the filtered list is no longer there, it's back the full view. How to I get it to keep the filtered list when I go back? The text is still in the search bar         NavigationLink(destination: ItemAddView(series: series), isActive: $noItemsShowing) { EmptyView() }         List {             ForEach(items) { item in                 NavigationLink(destination: ItemDetailView(item: item)) {                     Text(fullItemName(item: item))                 }             }         }         .searchable(text: $searchText)         .onSubmit(of: .search) {             items.nsPredicate = NSPredicate(format: "series = %@", series)             if(!searchText.isEmpty) {                 items.nsPredicate = NSPredicate(format: "series = %@ AND amount > 0 AND name CONTAINS[cd] %@", series, searchText)             }         }         .onChange(of: searchText) { _ in             items.nsPredicate = NSPredicate(format: "series = %@", series)             if(!searchText.isEmpty) {                 items.nsPredicate = NSPredicate(format: "series = %@ AND amount > 0 AND name CONTAINS[cd] %@", series, searchText)             }         }         .navigationBarTitle("\(series.name ?? "Error") Items", displayMode: .inline)     }

I'm currently using a navigationview and am now getting an warning 'init(destination:tag:selection:label:)' was deprecated in iOS 16.0: use NavigationLink(value:label:) inside a List within a NavigationStack or NavigationSplitView I'm trying to move to another view from a button (there will be several hence using tags) but I can't seem to get my head around how to do it. The code I currently have var body: some View { List { NavigationLink(destination: ProjectColourAddView(project: project), tag: 1, selection: $action) { EmptyView() } Group { Button(action: { self.showImageMenu = true }) { Text("New Title Image") } .confirmationDialog("Select Image Source", isPresented: $showImageMenu, titleVisibility: .visible) { Button("Take Photo") { self.isShowCamera = true } Button("Choose from Albums") { self.isShowPhotoLibrary = true } } Button(action: { self.action = 3 NSLog("More Images") }) { Text("More Images (x)") } Button(action: { self.action = 2 NSLog("Add Image") }) { Text("Add Image") } Button(action: { self.action = 1 NSLog("Colour List") }) { Text("Colour List") } } } }

I've got a List containing Colour objects. Each colour may have an associated Project Colour object. What I'm trying to do is set it up so that you can tap a cell and it will add/remove a project colour. The adding/removing is working, but each time I do so, it appears the whole view is reloaded, the scroll position is reset and any predicate is removed. This code I have so far List { ForEach(colourList) { section in let header : String = section.id Section(header: Text(header)) { ForEach(section) { colour in HStack { if checkIfProjectColour(colour: colour) { Image(systemName: "checkmark") } VStack(alignment: .leading){ HStack { if let name = colour.name { Text(name) } } } Spacer() } .contentShape(Rectangle()) .onTapGesture { if checkIfProjectColour(colour: colour) { removeProjectColour(colour: colour) } else { addProjectColour(colour: colour) } } } } } .onAppear() { filters = appSetting.filters colourList.nsPredicate = getFilterPredicate() print("predicate: on appear - \(String(describing: getFilterPredicate()))") } .refreshable { viewContext.refreshAllObjects() } } .searchable(text: $searchText) .onSubmit(of: .search) { colourList.nsPredicate = getFilterPredicate() } .onChange(of: searchText) { colourList.nsPredicate = getFilterPredicate() } The checkIfProjectColour function func checkIfProjectColour(colour : Colour) -> Bool { if let proCols = project.projectColours { for proCol in proCols { let proCol = proCol as! ProjectColour if let col = proCol.colour { if col == colour { return true } } } } return false } and the add/remove functions func addProjectColour(colour : Colour) { let projectColour = ProjectColour(context: viewContext) projectColour.project = project projectColour.colour = colour colour.addToProjectColours(projectColour) project.addToProjectColours(projectColour) do { try viewContext.save() } catch { let nsError = error as NSError fatalError("Unresolved error \(nsError), \(nsError.userInfo)") } } func removeProjectColour(colour: Colour) { if let proCols = project.projectColours { for proCol in proCols { let proCol = proCol as! ProjectColour if let col = proCol.colour { if col == colour { viewContext.delete(proCol) do { try viewContext.save() } catch { let nsError = error as NSError fatalError("Unresolved error \(nsError), \(nsError.userInfo)") } } } } } }

I have a list with sections headers on two views. One view has the section headers as collapsible, the other doesn't. Both use pretty much the same code, what defines if a section header is collapsible? Code for the one that doesn't collapse ForEach(cards) { section in let header: String = nameForSectionHeader(sectionID: section.id) Section(header: Text(header)) { ForEach(section) { card in NavigationLink(destination: CardView(card: card)) { HStack { Image(card.imageName ?? "") .renderingMode(.original) .resizable() .scaledToFit() .frame(width: 50.0) VStack(alignment: .leading) { if let name = card.name, let id = card.cardID { Text("\(id) - \(name)") } Text("Owned: \(card.owned)") } } } } } } } and the code for the one that does ForEach(cards) { section in let header: String = nameForSectionHeader(sectionID: section.id) Section(header: Text(header)) { ForEach(section) { card in NavigationLink(destination: CardView(card: card)) { VStack(alignment: .leading) { if let name = card.name, let id = card.cardID { Text("\(id) - \(name)") } if let set = card.set, let setName = set.name { Text("Set: \(setName)") } if card.owned > 0 { Text("Owned: \(card.owned)") } } } } } } .listRowBackground(lightGreen) }

I have the below fetch request which I want to be able to dynamically change the setup of. The request is setup initially as         sectionIdentifier: \.level,         sortDescriptors: [NSSortDescriptor(keyPath: \Card.level, ascending: true),                           NSSortDescriptor(keyPath: \Card.setID, ascending: true),                           NSSortDescriptor(keyPath: \Card.cardID, ascending: true),                           NSSortDescriptor(keyPath: \Card.name, ascending: true)],         animation: .default)     private var cards: SectionedFetchResults<Int16, Card> I've got the predicate change working fine, but get errors with the sort descriptors and the section identifier On setting the sort descriptors I get the error Cannot convert value of type 'NSSortDescriptor' to expected element type 'Array<SortDescriptor>.ArrayLiteralElement' (aka 'SortDescriptor') And setting the section identifier I get Cannot assign value of type 'SectionedFetchResults<String, Card>.Type' to type 'KeyPath<Card, Int16>' The code I have is below.                 if groupBy == 2 {                     cards.nsPredicate = nil                     let sortSetID = NSSortDescriptor(keyPath: \Card.setID, ascending: true)                     let sortName = NSSortDescriptor(keyPath: \Card.name, ascending: true)                     cards.sortDescriptors = [sortSetID, sortName] // This errors                     cards.sectionIdentifier = SectionedFetchResults<String, Card> // This errors                 }

My App does some importing when its first setup. I have it set to store core data in cloud kit. My issue is if you run it on one device, everything imports fine. Run it on a second, and it will import for a second time, duplicating the records. I'm trying to see if there's a way of checking if there is anything in cloud kit before running the import, but I'm always getting back false, even if I know there are records. The code I'm using to check is NSLog("Existance Check") checkIfExistsInCloudKit() { (result) in print(result) if result == false { NSLog("Does Not Exist") //let ImportData : ImportData = ImportData(viewContext: viewContext) //ImportData.importAll() } else { NSLog("Does Exist") } } NSLog("Existance Check Complete") and the function is func checkIfExistsInCloudKit(_ completion: @escaping (Bool) -> ()) { var result = false let container = CKContainer(identifier: "******") let privateDB = container.privateCloudDatabase let predicate = NSPredicate(format: "CD_brand = %@", "DMC") let query = CKQuery(recordType: "CD_Colour", predicate: predicate) privateDB.perform(query, inZoneWith: nil) { records, error in //guard let records = records else { return } result = true } completion(result) } 2023-04-15 14:07:28.092262+0100 Stitchers Companion[4553:113693] Existance Check false 2023-04-15 14:07:28.092897+0100 Stitchers Companion[4553:113693] Does Not Exist 2023-04-15 14:07:28.092962+0100 Stitchers Companion[4553:113693] Existance Check Complete

Xcode keeps complaining about changes when I try and commit, I get the error "The local repository is out of date." When I try and pul changes from the remote, I get the message "Your local repository has uncommitted changes that need to be stashed before you can continue. " When I try and commit, every time it shows a UserInterfaceState.xcuserstate file. if I try and commit it I get the local repository error.

I'm trying to do a mass conversion of images to data so it can be stored in core data. The conversion part works fine, and if I do it without updating core data it shows memory usage at less that 100MB If I update the core data object, it just keeps consuming memory until the app crashes. func updateLocalImages() { let fetchRequest: NSFetchRequest<Picture> = Picture.fetchRequest() fetchRequest.predicate = NSPredicate(format: "pictureName != \"\"") do { let pictures = try moc.fetch(fetchRequest) print("Picture Update Count: \(pictures.count)") for picture in pictures { let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask) let path = paths[0] if let picName = picture.pictureName { let imagePath = path.appendingPathComponent(picName) if let uiImage = UIImage(contentsOfFile: imagePath.path) { if let imageData = uiImage.jpegData(compressionQuality: 1.0) { autoreleasepool { picture.pictureData = imageData print("Picture Updated") saveContext() } } } } } } catch { print("Fetching Failed") } } If I comment out the picture.pictureData = imageData line I don't get the memory issues. What's the correct way of going about this? There is an unknown number of images (mine current sits at about 5.5GB worth, 800+)

I'm trying to filter results to get all characters that are associated with a story. When navigating to the view it filters as it should, but as soon as you select the Add Character option, the app just freezes. I've found that if I comment out the Query line in the init, and filter out as part of the foreach I don't get the freeze. Can anyone advise how I should be doing these predicates as it seems init isn't the best place to do it The views code is import SwiftUI import SwiftData struct CharacterListView: View { let story : Story @Query(sort: \Character.name, order: .forward) private var characters: [Character] var body: some View { List { ForEach(characters) { char in CharacterListCellView(char: char) } } .toolbar { ToolbarItem { NavigationLink(destination: CharacterAddView(story: story)) { Label("Add Character", systemImage: "plus") } } } .navigationBarTitle("Characters", displayMode: .inline) } init(story: Story) { self.story = story let id = story.persistentModelID let predicate = #Predicate<Character> { char in char.story?.persistentModelID == id } _characters = Query(filter: predicate, sort: [SortDescriptor(\.name)] ) } } I've narrowed it down to a line in the AddCharacterView file struct CharacterAddView: View { @Environment(\.modelContext) private var modelContext @Environment(\.dismiss) var dismiss let story : Story // Character details @State private var characterName: String = "" // Images @State private var showImageMenu = false; @State private var isShowPhotoLibrary = false @State private var isShowCamera = false //@State private var image = UIImage() <-- This line @State private var imageChanged = false @State private var isSaving : Bool = false var body: some View { } } If I do either of the below it works If I comment out the UIImage variable then I don't get the freeze, but I can't update the image variable If I comment out the query in init, then it works but doesn't filter and I have to do it as part of the foreach

I'm trying to change the background colour of a row in a list based on a value I have an Int16 value stored in card.owned and I want to change the background if this value is above 0, otherwise use the normal background. Previously with a table view I could change it with the cellForRowAtIndexPath method, but not sure how to do it with SwiftUI without changing every row Currently I have ForEach(cards) { section in let header: String = nameForSectionHeader(sectionID: section.id) Section(header: Text(header)) { ForEach(section) { card in NavigationLink(destination: CardView(card: card)) { VStack(alignment: .leading) { if let name = card.name, let id = card.cardID { Text("\(id) - \(name)") } if let set = card.set, let setName = set.name { Text("Set: \(setName)") } if card.owned > 0 { Text("Owned: \(card.owned)") } } } } } } .listRowBackground(lightGreen) }

I'm looking to see if its possible to change the background colour of a cell, but fill it based on a percentage I'm creating the cell in a List {} let gradient = LinearGradient(colors: [.green, .white], startPoint: .leading, endPoint: .trailing) List { Section(header: Text("Total")) { Text("Total Obtained: \(totalObtained) - \(totalComplete)%") .listRowBackground(gradient) } } totalComplete has the percentage variable

I have a list view created from core data, and it's sectioned by a property called favourite. In the detail view a user is able to either add an item or remove it as a favourite. When the property is updated, it causes the detail view to pop back to the list view, which I don't want it to do, and don't know how to get it to not do that The creation of the list @SectionedFetchRequest var dims: SectionedFetchResults<Int16, DIM> init() { _dims = SectionedFetchRequest<Int16, DIM>( sectionIdentifier: \.favourite, sortDescriptors: [NSSortDescriptor(keyPath: \DIM.favourite, ascending: false), NSSortDescriptor(keyPath: \DIM.name, ascending: true)] ) } List { ForEach(dims) { section in let header: String = nameForSectionHeader(sectionID: section.id) Section(header: Text(header)) { ForEach(section) { dim in NavigationLink(destination: DIMListView(dim: dim)) { } } } } } and then on the detail view there's a toolbar with an option to add/remove favourite. .toolbar { ToolbarItem(placement: .navigationBarTrailing) { Button("Options") { showingAlertFav = true } .alert("Choose an option", isPresented: $showingAlertFav) { if dim.favourite == 0 { Button("Favourite", role: .none) { setFav(fav: 1) } } else { Button("Unfavourite", role: .none) { setFav(fav: 0) } } } } } func setFav(fav : Int16) { dim.favourite = fav saveContext() }