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 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

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 } }

I create a UIViewRepresentable to show my PDF inside my SwiftUI app. I want to access the current page number using currentPage?.pageRef?.pageNumber. from the view in which I display the pdf. How to make PDFView Created in func makeUIView(context: UIViewRepresentableContext<PDFDisplayRepresentedView>) -> PDFView Available in the view displaying the pdf so I can access its properties to obtain page number. import SwiftUI import PDFKit struct PDFDisplayView: View { @Binding var pdfDocument : PDFDocument? var body: some View { PDFDisplayRepresentedView(pdfDocument: pdfDocument!) } } struct PDFDisplayRepresentedView: UIViewRepresentable { let pdfDocument: PDFDocument init(pdfDocument: PDFDocument) { self.pdfDocument = pdfDocument } func makeUIView(context: UIViewRepresentableContext<PDFDisplayRepresentedView>) -> PDFView { return createPDFViewUsing(document: pdfDocument) } func updateUIView(_ pdfView: PDFView, context: UIViewRepresentableContext<PDFDisplayRepresentedView>) { pdfView.document = pdfDocument } private func createPDFViewUsing(document : PDFDocument) -> PDFView { let pdfView = PDFView(frame: CGRect(x: 0, y: 0, width: 100, height: 100)) pdfView.document = document ... set up pdfView attributes return pdfView } } view showing pdf where I want to know the page number pseudo code … @State private var pdfDisplayView : PDFDisplayView? …. var body: some View { load the pdf into this view. need to access the page number pdfDisplayView }

As I sit here on the fourth hour waiting for Xcode to install. Can’t help, but think it would be nice if there was a way for notifications to be sent to my phone when applications on my computer have finished downloading, or installing

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

cant see where to delete posts

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

I have to turn off closed captions for every video in the WWDC catalogue. How can i set all videos CC to be off by default?

Not developer related but I can't find any help with google and trying to send a crash report to apple just causes spinning beachball. So hoping i can find some much needed help in this forum. Safari runs very slow and every time it launches i get an error producing the log below. Any fix suggestions please. Seeing a WebPrivacy library missing leaves me with no confidence using my mac. I had hoped a software update to Ventura 13.6.3 would resolve but no. Path: /Volumes/VOLUME/*/WebPrivacy.framework/Versions/A/XPCServices/com.apple.WebPrivacy.Service.xpc/Contents/MacOS/com.apple.WebPrivacy.Service Identifier: com.apple.WebPrivacy.Service Version: 34 (34.1.1) Build Info: WebPrivacy-34000000000000~249 (617C13) Code Type: X86-64 (Native) Parent Process: launchd [1] Responsible: Safari [5749] User ID: 501 Date/Time: 2023-11-15 09:15:24.5072 +0000 OS Version: macOS 13.6.3 (22G423) Report Version: 12 Anonymous UUID: EC45AED0-4F92-87DE-6EE8-AE74E4A4BD5E Sleep/Wake UUID: 65B3C137-4BC0-476B-9975-503694B76241 Time Awake Since Boot: 150000 seconds Time Since Wake: 88111 seconds System Integrity Protection: enabled Crashed Thread: 0 Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: Namespace DYLD, Code 1 Library missing Library not loaded: /System/Library/PrivateFrameworks/WebPrivacy.framework/Versions/A/WebPrivacy Referenced from: <BF03A141-E3B8-3EC8-B0D3-79F9E987841B> /Volumes/VOLUME/*/WebPrivacy.framework/Versions/A/XPCServices/com.apple.WebPrivacy.Service.xpc/Contents/MacOS/com.apple.WebPrivacy.Service Reason: tried: '/System/Library/PrivateFrameworks/WebPrivacy.framework/Versions/A/WebPrivacy' (no such file), '/System/Volumes/Preboot/Cryptexes/Incoming/OS/System/Library/PrivateFrameworks/WebPrivacy.framework/Versions/A/WebPrivacy' (no such file), '/System/Library/PrivateFrameworks/WebPrivacy.framework/Versions/A/WebPrivacy' (no such file, not in dyld cache), '/System/Library/Frameworks/WebPrivacy.framework/Versions/A/WebPrivacy' (no such file, not in dyld cache) (terminated at launch; ignore backtrace) Thread 0 Crashed: 0 dyld 0x7ff812633c52 __abort_with_payload + 10 1 dyld 0x7ff81264dfd7 abort_with_payload_wrapper_internal + 82 2 dyld 0x7ff81264e009 abort_with_payload + 9 3 dyld 0x7ff8125d28f0 dyld4::halt(char const*) + 375 4 dyld 0x7ff8125cfb71 dyld4::prepare(dyld4::APIs&, dyld3::MachOAnalyzer const*) + 4526 5 dyld 0x7ff8125ce3bd start + 1805 Thread 0 crashed with X86 Thread State (64-bit): rax: 0x0000000002000209 rbx: 0x0000000000000000 rcx: 0x00007ff7b8f8a3c8 rdx: 0x00007ff7b8f8a830 rdi: 0x0000000000000006 rsi: 0x0000000000000001 rbp: 0x00007ff7b8f8a410 rsp: 0x00007ff7b8f8a3c8 r8: 0x00007ff7b8f8a430 r9: 0x0000000000000000 r10: 0x0000000000000127 r11: 0x0000000000000246 r12: 0x0000000000000127 r13: 0x00007ff7b8f8a830 r14: 0x0000000000000001 r15: 0x0000000000000006 rip: 0x00007ff812633c52 rfl: 0x0000000000000246 cr2: 0x0000000000000000 Logical CPU: 0 Error Code: 0x02000209 Trap Number: 133 Binary Images: 0x106f74000 - 0x106f8bfff com.apple.WebPrivacy.Service (34) <bf03a141-e3b8-3ec8-b0d3-79f9e987841b> /Volumes/VOLUME/*/WebPrivacy.framework/Versions/A/XPCServices/com.apple.WebPrivacy.Service.xpc/Contents/MacOS/com.apple.WebPrivacy.Service 0x7ff8125c8000 - 0x7ff8126605ef dyld (*) <d963b325-2b69-3e5a-ab79-8ce1662ec8cc> /usr/lib/dyld External Modification Summary: Calls made by other processes targeting this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by all processes on this machine: task_for_pid: 153 thread_create: 0 thread_set_state: 5851 VM Region Summary: ReadOnly portion of Libraries: Total=171.8M resident=0K(0%) swapped_out_or_unallocated=171.8M(100%) Writable regions: Total=8452K written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=8452K(100%)

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)

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) -&gt; PDFView { do { let pdfData = try Data(contentsOf: activeBook) pdfView.document = PDFDocument(data: pdfData) //&lt;---- 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) -&gt; 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 ?

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.

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] ) }

Submitted a TSI 4 days ago. Heard nothing back. Status Used. Surely a TSI is a fulfilled request and not just ignored? Also the forum tags don't have TSI so not sure where this post will end up