So I am trying to sync only some of my Models with iCloud and others kept locally in the default.store. I am having a world of issues so before I start looking for the needle in my haystack. I would like to ask this forum, is my approach one that should work as desired or is my code obviously why things are not working? All my Models have default values and relationships where needed are optionals. iCloud is working but my issue arises when i try to exclude some models. So I want to sync "modelsForCloudSyncing" but not "modelNotForCloudSyncing" In advance thank you var avoidCloudSyncModelContainer : ModelContainer = { let modelNotForCloudSyncing = Schema([NoCloudSyncModel.self]) let modelConfigForNoCloudSync = ModelConfiguration(schema: modelNotForCloudSyncing, cloudKitDatabase: .none) let modelsForCloudSyncing = Schema([CloudSyncModelA.self, CloudSyncModelB.self, CloudSyncModelC.self]) let modelConfigForCloudSync = ModelConfiguration(schema: modelsForCloudSyncing, cloudKitDatabase: .automatic) do { return try ModelContainer(for: NoCloudSyncModel.self, CloudSyncModelA.self, CloudSyncModelB.self, CloudSyncModelC.self, configurations: modelConfigForNoCloudSync, modelConfigForCloudSync) } catch { fatalError("Could not create ModelContainer: \(error)") } }() ... { ContentView() }.modelContainer(avoidCloudSyncModelContainer)

I have a loop that iterates all pages in a PDF and saves parts of its content into core data. Problem seems to be that each PDFPage takes up around 30mb+ of memory. This memory is not retuned when the loop moves to ther next page. with large enough PDF in can cause out of memory crash.At first I thought it was something in the loop holidng a reference. However when I dont run the loop, or attempt to save any of the PDFPage contents and simply swipe through the PDFPages of the PDF, the memory still goes up 30mb + per page. So my question is how to clear the previous page from memory when no longer the page in view?I would add code but seems you cant pste into here so jist know its basic PDFKit code to load a pdf url

Users have reported unusually high data usage with my app. So to investigate I have profiled in instruments. My app as expected in using minimal data. However in instruments I see an "Unknown" process. Which sends around 1mb of data every 2 seconds. Can anyone explain what unknown process is? Sorry my question is vague but I'm at the beginning of understanding the instruments outputs so your help is so very much appreciated.

Is there a system deep link URI to the built in files app? I would like to direct users to my apps location in the files app. For example files://myApp The only exposed deep links for system I can find are the ones for mail, sms, FaceTime etc. Thank you (tag used for post was because I couldn’t find a deep link tag)

cant see where to delete posts

2 versions 1 works 1 doesn't. UIViewRepresentable to show a PDF @AppStorage(DefaultsKey.userActiveBook.rawValue) var activeBook : URL = Bundle.main.url(forResource: "BookPlaceHolder", withExtension: "pdf")! func makeUIView(context: Context) -> PDFView { do { let pdfData = try Data(contentsOf: activeBook) pdfView.document = PDFDocument(data: pdfData) //<---- is nil ... } catch let Error { print(Error) } } fails with Error Domain=NSCocoaErrorDomain Code=260 "The file “BookPlaceHolder.pdf” couldn’t be opened because there is no such file." func makeUIView(context: Context) -> PDFView { do { let pdfData = try Data(contentsOf: Bundle.main.url(forResource: "BookPlaceHolder", withExtension: "pdf")!) pdfView.document = PDFDocument(data: pdfData) ... } catch let Error { print(Error) } } Works perfectly. What is it with using @AppStorage to access the exact same URL causing the discrepancies ?

Is SwiftData not designed for large datasets? How to create many instances of my Data Model? I have a loop where I iterate over a CSV file of 30k+ lines. Totalling around 230k elements. I intend to save this data into SwiftData. However it takes around 90 seconds. In previous versions of my app I was using coreData. Then it took just 3 seconds. So after much investigation I have concluded the delay comes from creating instances of the Data Model. To Test this I have : Removed any saves into SwiftData. So only creation of the Model Object occurs. Created an exact copy of the SwiftData Model class but admitted the @Model macro set isAutosaveEnabled to false When I run my loop with the copy class it takes 3 seconds. So It must be creating the SwiftData model instances that causes the *30 delay. The code using swiftData @Model. This loop takes 90+ seconds to complete class TimetableData { var arrivalTime : Int = 0 var departureTime: Int = 0 var departureRoute : Int = 0 var directionOfTravel : Int = 0 var dutyNumber : Int = 0 var facilityIdentifier : String = "" var locationType : String = "" var mode : String = "" var nonStopStatus : Int = 0 var recordIdentifier : String = "" var timetableIdentifier : Int = 0 var trainNumber : String = "" var tripNumber : Int = 0 var tripStartSite : String = "" var uniqueLocationCode : String = "" init(arrivalTime: Int = 0, departureTime: Int = 0, departureRoute: Int = 0, directionOfTravel: Int = 0, dutyNumber: Int = 0, facilityIdentifier: String = "", locationType: String = "", mode: String = "", nonStopStatus: Int = 0, recordIdentifier: String = "", timetableIdentifier: Int = 0, trainNumber: String = "", tripNumber: Int = 0, tripStartSite: String = "", uniqueLocationCode: String = "") { self.name = name self.arrivalTime = arrivalTime self.departureTime = departureTime self.departureRoute = departureRoute self.directionOfTravel = directionOfTravel self.dutyNumber = dutyNumber self.facilityIdentifier = facilityIdentifier self.locationType = locationType self.mode = mode self.nonStopStatus = nonStopStatus self.recordIdentifier = recordIdentifier self.timetableIdentifier = timetableIdentifier self.trainNumber = trainNumber self.tripNumber = tripNumber self.tripStartSite = tripStartSite self.uniqueLocationCode = uniqueLocationCode } } for line in CSVFile { var columnValue = line.components(separatedBy: ",") let timeTableDataEntry = TimetableData ( arrivalTime: Int(columnValue[0])!, departureTime: Int(columnValue[1])!, departureRoute: Int(columnValue[2])!, directionOfTravel: Int(columnValue[3])!, dutyNumber: Int(columnValue[4])!, facilityIdentifier: columnValue[5], locationType: columnValue[6], mode: columnValue[7], nonStopStatus: Int(columnValue[8])!, recordIdentifier: columnValue[9], timetableIdentifier: Int(columnValue[10])!, trainNumber: columnValue[11], tripNumber: Int(columnValue[12])!, tripStartSite: columnValue[13], uniqueLocationCode:columnValue[14] ) } Then The exact same code but omitting the @Model takes around just 3 second. class TimetableDataForTesting { var arrivalTime : Int = 0 var departureTime: Int = 0 var departureRoute : Int = 0 var directionOfTravel : Int = 0 var dutyNumber : Int = 0 var facilityIdentifier : String = "" var locationType : String = "" var mode : String = "" var nonStopStatus : Int = 0 var recordIdentifier : String = "" var timetableIdentifier : Int = 0 var trainNumber : String = "" var tripNumber : Int = 0 var tripStartSite : String = "" var uniqueLocationCode : String = "" init(arrivalTime: Int = 0, departureTime: Int = 0, departureRoute: Int = 0, directionOfTravel: Int = 0, dutyNumber: Int = 0, facilityIdentifier: String = "", locationType: String = "", mode: String = "", nonStopStatus: Int = 0, recordIdentifier: String = "", timetableIdentifier: Int = 0, trainNumber: String = "", tripNumber: Int = 0, tripStartSite: String = "", uniqueLocationCode: String = "") { self.name = name self.arrivalTime = arrivalTime self.departureTime = departureTime self.departureRoute = departureRoute self.directionOfTravel = directionOfTravel self.dutyNumber = dutyNumber self.facilityIdentifier = facilityIdentifier self.locationType = locationType self.mode = mode self.nonStopStatus = nonStopStatus self.recordIdentifier = recordIdentifier self.timetableIdentifier = timetableIdentifier self.trainNumber = trainNumber self.tripNumber = tripNumber self.tripStartSite = tripStartSite self.uniqueLocationCode = uniqueLocationCode } } for line in CSVFile { var columnValue = line.components(separatedBy: ",") let timeTableDataEntry = TimetableDataForTesting ( arrivalTime: Int(columnValue[0])!, departureTime: Int(columnValue[1])!, departureRoute: Int(columnValue[2])!, directionOfTravel: Int(columnValue[3])!, dutyNumber: Int(columnValue[4])!, facilityIdentifier: columnValue[5], locationType: columnValue[6], mode: columnValue[7], nonStopStatus: Int(columnValue[8])!, recordIdentifier: columnValue[9], timetableIdentifier: Int(columnValue[10])!, trainNumber: columnValue[11], tripNumber: Int(columnValue[12])!, tripStartSite: columnValue[13], uniqueLocationCode:columnValue[14] ) }

Anyone know how to include sample code or screenshots because the very basic form to submit one most definitely does not have the option to do so.

How to show the keyboard for textfield on ToolbarItem(placement: .keyboard)? I have a button and it's action I want is to show the keyboard. On top of which is ToolbarItem(placement: .keyboard) { HStack{ Button(...) TextField("", text: $bindingText) .textFieldStyle(RoundedBorderTextFieldStyle()) .keyboardType(.numberPad) .multilineTextAlignment(.trailing) } } I know keyboard shows with a textfield focused. How though to show the keyboard for ToolbarItem(placement: .keyboard) Textfield if can't show it without showing the keyboard?

I have yearly auto renew subscription. in ASC I generate a promo code. giving user free subscription. At the end of the year are they [A ] renewed automatically for free so promo code continues? [B ] renewed automatically at the actual subscription price [ C] not renewed so effectively get to choose to start a subscription at the current price [D ] none of the above

From the Internet I read that URLRequest sends an Accept-Encoding header by default. I also read that URLSession auto decompresses any data that’s returned compressed. However these are what the internet says. I go to the Apple docs and read the URLSession & URLRequest sections but I can’t find where does it say that it sends the Accept-Encoding headers by default or that it auto decompresses compressed data. I know it does the latter as I am able to parse compressed data and have to do nothing to decompress. Just tell me where this stuff is documented by Apple so I can read about it.

I use UIHostingController inside my UIViewController to present a SwiftUI View. I have a button in that view which I want to tap and dismiss the presented view. How do I dimiss SwiftUI views when presented in a UIHostingController...{ let vc = UIHostingController(rootView: SwiftUIView()) present(vc, animated: true, completion: nil) }struct SwiftUIView : View { var body: some View { CustomButton() } }struct CustomButton: View { var body: some View { Button(action: { self.buttonAction() }) { Text(buttonTitle) } } func buttonAction(){ //dismiss the SwiftUIView when this button pressed } }

With NSFetchRequest of coreData it was possible to only return distinct results from the database with .returnsDistinctResults What if any is the fetch equivalent in SwiftData ? currently I'm appending entries into a Set<String>. Only with over 200k rows and no newBackgroundContext() in SwiftData the UI is locked for a number of seconds

My database has over 100k entries and anytime I access it either via @Query or a custom Fetch request it freezes my apps UI for 10+ second. My first question is anyone having performance issues with large data sets. If so how have you found to resolve it ? My next question is does swiftUI load the entire database into memory with the @Query. As I feel it is seeing as my app becomes very slow and partially unresponsive. lastly if I have 2 data models and 1 has a to many relationship to the other are both loaded into memory even though only @Query 1? consider datamodels model1 { var name : String @Relationship(deleteRule:.cascade) var lotsOfData :[LotsOfData] init.... } LotsOfData{ var element1 : String var element2 : String var element3 : String var element4 : String var element4 : String init …. } LotsOfData has 100K instances in the database. if I @Query into model1 because it references LotsOfData through A relationship is all that data all called / loaded ? thanks for the information

How often/ under what circumstances are users sandbox directory URL's changed? So I tried to save a URL to a document in @AppStorage @AppStorage(DefaultsKey.userActiveBook.rawValue) var activeBook : URL = Bundle.main.url(forResource: "BookPlaceHolder", withExtension: "pdf")! When user selects a new document activeBook is updated with the new URL. Issue is when the app relaunches from xCode the path to whatever is stored in activeBook changes. My work around so far is to just access the users Documents Directory via FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!. Then appending the last path component of activeBook. sidebar: obviously this doesn't work if the saved URL in activeBook is still the default from Bundle.main.url. I haven't written that workaround as yet. Am I only seeing issues in development due to a fresh relaunch via xCode? If the user only ever terminates the app on their device are the .documentDirectory URL's changing on each launch or do the remain constant? I don't want to write a workaround to ensure the correct URL for whats stored in @AppStorage, if the changing URL's only occurs due to launching from xCode which the end user wont ever encounter that edge case.