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Xcode fails to compile visionOS app that has a Front layer in AppIcon asset
I'm trying to create the app icon for my visionOS app. The Assets catalog already contains AppIcon for iOS and I've added another AppIcon for visionOS. If I only add the Back layer of the visionOS icon, compiling succeeds despite there being an error The visionOS App Icon "AppIcon" must have at least 2 layers with applicable content. Although it has 3 layers, only 1 has applicable content. As soon as I add one of the other two layers, say the Front layer, compiling fails, but this time Xcode only shows a generic compiler error Command CompileAssetCatalogVariant emitted errors but did not return a nonzero exit code to indicate failure If I click that message, a long build log opens containing among other things: 2024-10-31 11:28:15.258 AssetCatalogSimulatorAgent[66919:1456355] -[TDTextureRawRenditionSpec _createImageRefWithURL:andDocument:format:] Texture image asset file:///~/Documents/apps/myApp/xcode/iOS/Assets.xcassets/AppIcon.solidimagestack/Back.solidimagestacklayer/Content.imageset/icon_layer3.heic not in one of supported formats ... libc++abi: terminating due to uncaught exception of type NSException Command CompileAssetCatalogVariant failed with a nonzero exit code What is the problem? I filed FB15642844.
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479
Nov ’24
SKNode.zPosition causes nodes to flicker by reordering them for 1 frame
When running the sample code below, every 3 seconds the middle sprite is replaced by a new one. When this happens, most of the time a flicker is noticeable. When recording the screen and stepping through the recording frame by frame, I noticed that the flicker is caused by a temporary reordering of the nodes’. Below you find two screenshots of two consecutive frames where the reordering is clearly visible. This only happens for a SpriteKit scene used as an overlay for a SceneKit scene. Commenting out buttons.zPosition = 1 or avoiding the fade in/out animations solves the issue. I have created FB15945016. import SceneKit import SpriteKit class GameViewController: NSViewController { let overlay = SKScene() var buttons: SKNode! var previousButton: SKSpriteNode! var nextButton: SKSpriteNode! var pageContainer: SKNode! var pageViews = [SKNode]() var page = 0 override func viewDidLoad() { super.viewDidLoad() let scene = SCNScene(named: "art.scnassets/ship.scn")! let scnView = self.view as! SCNView scnView.scene = scene overlay.anchorPoint = CGPoint(x: 0.5, y: 0.5) scnView.overlaySKScene = overlay buttons = SKNode() buttons.zPosition = 1 overlay.addChild(buttons) previousButton = SKSpriteNode(systemImage: "arrow.uturn.backward.circle") previousButton.position = CGPoint(x: -100, y: 0) buttons.addChild(previousButton) nextButton = SKSpriteNode(systemImage: "arrow.uturn.forward.circle") nextButton.position = CGPoint(x: 100, y: 0) buttons.addChild(nextButton) pageContainer = SKNode() pageViews = [SKSpriteNode(systemImage: "square.and.arrow.up"), SKSpriteNode(systemImage: "eraser")] overlay.addChild(pageContainer) setPage(0) Timer.scheduledTimer(withTimeInterval: 3, repeats: true) { [self] _ in setPage((page + 1) % 2) } } func setPage(_ page: Int) { pageViews[self.page].run(.sequence([ .fadeOut(withDuration: 0.2), .removeFromParent() ]), withKey: "fade") self.page = page let pageView = pageViews[page] pageView.alpha = 0 pageView.run(.fadeIn(withDuration: 0.2), withKey: "fade") pageContainer.addChild(pageView) } override func viewDidLayout() { overlay.size = view.frame.size } } extension SKSpriteNode { public convenience init(systemImage: String) { self.init() let width = 100.0 let image = NSImage(systemSymbolName: systemImage, accessibilityDescription: nil)!.withSymbolConfiguration(.init(hierarchicalColor: NSColor.black))! let scale = NSScreen.main!.backingScaleFactor image.size = CGSize(width: width * scale, height: width / image.size.width * image.size.height * scale) texture = SKTexture(image: image) size = CGSize(width: width, height: width / image.size.width * image.size.height) } }
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696
Nov ’24
Feedback Assistant: „This Feedback will no longer be monitored, and incoming messages will not be reviewed.“
Every now and then I get this very frustrating message on Feedback Assistant. For instance, in FB14696726 I reported an issue with the App Store Connect API. 4 weeks later, I got a reply, asking among other things for a „correlation key and Charles log“. I immediately replied saying that I didn‘t know what those are, and they replied After reviewing your feedback, it is unclear what the exact issue is. I pointed out that I had asked a question which was left unanswered, and they replied explaining what the correlation key is. Then I asked again what the Charles log is. They replied The Apple Developer website provides access to a range of videos covering various topics on using and developing with Apple technologies. You can find these videos on our Development Videos page: http://developer.apple.com/videos. I opened the link and searched for „Charles“ but there were no results, so I asked to kindly point me to the video answering my question. They replied 3 months later (today): Following up on our last message, we believe this issue is either resolved or not reproducible with the information provided and will now consider this report closed internally. This Feedback will no longer be monitored, and incoming messages will not be reviewed. This is not the first time I ask for clarification and get back a message basically telling me that „we won‘t answer any questions you may have and won‘t hear anything you still may have to say about this issue“. They didn‘t even ask me to verify if the issue is resolved or not, like they sometimes do. No, they just shut the door in my face. I just wanted to share this frustrating experience. Perhaps an Apple engineer wants to say something about it or a developer has had a similar experience?
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549
Dec ’24
NSView.knowsPageRange(_:) called twice when showing print panel
When creating a default macOS document-based Xcode project and using the code below (and wiring the File menu's Print item to printDocument: instead of the default print:, which does nothing), opening the print panel causes PrintView.knowsPageRange(_:) to be called twice. Is this a bug? My app populates PrintView dynamically, and for large documents it can be quite inefficient to populate it once, only for the contents to be immediately discarded and populated again. A workaround that came to my mind would be to check if the print options have changed, though I'm not sure if it's a reliable indicator that the print preview is effectively the same. I created FB17018494. class Document: NSDocument { override func makeWindowControllers() { addWindowController(NSStoryboard(name: NSStoryboard.Name("Main"), bundle: nil).instantiateController(withIdentifier: NSStoryboard.SceneIdentifier("Document Window Controller")) as! NSWindowController) } override func printOperation(withSettings printSettings: [NSPrintInfo.AttributeKey : Any]) throws -> NSPrintOperation { return NSPrintOperation(view: PrintView(frame: CGRect(x: 0, y: 0, width: 100, height: 100)), printInfo: NSPrintInfo(dictionary: printSettings)) } } class PrintView: NSView { override func knowsPageRange(_ range: NSRangePointer) -> Bool { print("knowsPageRange") range.pointee = NSRange(location: 1, length: 1) return true } }
Topic: UI Frameworks SubTopic: AppKit
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64
Mar ’25
FileManager.default.trashItem(at:resultingItemURL:) doesn't update trash icon to be full for some devices
A user of my app noticed that when using it to move a file to the trash on an USB drive, the trash doesn't show the file until unmounting the drive and mounting it again. I was able to reproduce it with one of my own USB drives, but with another USB drive it doesn't reproduce. All USB drives are formatted APFS. When moving a file to the trash from the Finder, both USB drives immediately list it in the trash. Is this a macOS bug, or am I doing something wrong? I created FB19941168. let openPanel = NSOpenPanel() openPanel.runModal() let url = openPanel.urls[0] do { var result: NSURL? try FileManager.default.trashItem(at: url, resultingItemURL: &result) print(result as Any) } catch { fatalError(error.localizedDescription) }
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116
Aug ’25
Sidebar created on macOS 26 with NSSplitViewItem(sidebarWithViewController:) is cut off at the top in fullscreen mode
I noticed that when I have a fullscreen window in macOS 26, sidebars look like they are cut off at the top: they suddenly stop where the title bar/toolbar would appear when moving the mouse to the top of the screen, leaving a wide empty gap. Am I the only one who finds this ugly? Is this intended, or is there a workaround? This is how it looks in fullscreen (the sidebar borders are not easy to distinguish, look for the drop shadow): And this when moving the mouse to the top screen border to show the menu bar: I created FB20291636. @main class AppDelegate: NSObject, NSApplicationDelegate, NSWindowDelegate { func applicationDidFinishLaunching(_ aNotification: Notification) { let splitViewController = NSSplitViewController() splitViewController.addSplitViewItem(NSSplitViewItem(sidebarWithViewController: ViewController())) splitViewController.addSplitViewItem(NSSplitViewItem(viewController: ViewController())) let window = NSWindow(contentViewController: splitViewController) window.styleMask = [.titled, .closable, .miniaturizable, .resizable, .fullSizeContentView] window.toolbar = NSToolbar() window.delegate = self window.makeKeyAndOrderFront(nil) } func window(_ window: NSWindow, willUseFullScreenPresentationOptions proposedOptions: NSApplication.PresentationOptions = []) -> NSApplication.PresentationOptions { return [.autoHideToolbar, .autoHideMenuBar, .fullScreen] } } class ViewController: NSViewController { override func loadView() { let stack = NSStackView(views: [ NSTextField(labelWithString: "asdf") ]) stack.orientation = .vertical stack.alignment = .leading view = stack view.frame = CGRect(x: 0, y: 0, width: 300, height: 300) } }
Topic: UI Frameworks SubTopic: AppKit Tags:
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103
Sep ’25
Security-scoped bookmarks to external volumes are resolved to /
Users of my different apps started reporting an issue that could be related to the ones discussed in this other post: paths on an external volume, such as one mounted by "NTFS for Mac", or a path on a Synology volume, are "converted" to / (Macintosh HD) after going through "laundry" (creating the security-scoped bookmark, resolving the URL from it and using this new URL instead of the one returned by the open panel). Because of this issue, users of my apps are unable to select external volumes, which renders the different apps more or less useless. I've already received many emails regarding this issue in the past few days. A timely fix or suggestion for a workaround would be much appreciated, so that they don't have to wait for months before the next minor macOS release. The intention of this post is also to show users of my apps that this is a real issue. I created FB21002290 and TSI 16931637.
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100
Nov ’25
URL.startAccessingSecurityScopedResource() returns false for "On My iPad" after a while
My app allows to save user-selected URLs in a list and browse them with a tap. A user reported that the app often shows that when browsing their saved entry for "On My iPad", it's apparently empty (it contains no files). I saved "On My iPad" in my own list some time ago and noticed that the same issue occurs. The URL seems to be correctly resolved from the saved bookmark data, but I noticed that url.startAccessingSecurityScopedResource() returns false. The other URL I saved some time ago is iCloud Drive, which I can access without issues. If I select "On My iPad" again in a file importer, create new bookmark data from it and resolve the URL from it, access works correctly. I create bookmark data like this: let data = try url.bookmarkData(includingResourceValuesForKeys: [.localizedNameKey, .pathKey, .volumeIsLocalKey]) and resolve URLs like this: let url = try URL(resolvingBookmarkData: data, bookmarkDataIsStale: &bookmarkDataIsStale) bookmarkDataIsStale is false for both the working and not working URLs for "On My iPad". The two bookmark data are different though, even if url.path is the same. What could be the issue?
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1w
How to disable weekly "We are interested in investigating your feedback" reminders
Since a year or so I get frequent email reminders for feedbacks to which Apple answered and to which I still didn't reply. The interval between Apple's answer and the automatic reminder can be as small as 5 days and are repeated weekly until I respond to them. There is apparently no way of disabling them. How can it be that I have to respond within 5 days and Apple can take up to 8 years (the longest I've waited for a response for now)? I've already reported this several times but to no avail. I would also like to be able to send weekly reminders to Apple for not responding to pressing issues, but unfortunately that's not possible and this comes across as being quite arrogant.
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657
Jun ’21
Why does Apple not mark solved bugs as solved?
I keep noticing that some bugs that I reported or features that I suggested have been corrected or added to the latest OS. For one of these I replied asking why I wasn't notified and never got an answer. Isn't Apple interested in closing as many feedbacks as possible? Now I cannot even say that perhaps I formulated them in such a way that they don't understand, because they don't seem to reply altogether.
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589
Nov ’21
Import Image from SwiftUI even if project already declares an internal Image type
I have this code in my project #if os(macOS) import Cocoa typealias Image = NSImage #elseif os(iOS) import UIKit typealias Image = UIImage #endif Because of this, in a file with import SwiftUI I would have to use SwiftUI.Image to disambiguate. Is it possible to declare that whenever I use Image in that file, it should not use my internal declaration but the SwiftUI type instead?
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1.3k
Nov ’21
I cannot delete old macOS installers, not even from the Terminal
I recently downloaded "Install macOS Catalina", "Install macOS High Sierra" and "Install macOS Mojave" and then wanted to delete them again, so I moved them to the trash, but trying to empty the trash gives the error that they are apparently being used. Even after a system restart it still happens. Trying to delete them from the Terminal via sudo rm -rf gives the error "the directory is not empty". How can I get rid of these files?
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1.7k
Dec ’21
Creating SCNGeometryElement with SCNGeometryPrimitiveType.polygon always causes error
I'm using this code to create a rectangle (that will eventually be a more complex shape): let vertices = [simd_float3(x: 1, y: 1, z: 0), simd_float3(x: 1, y: -1, z: 0), simd_float3(x: -1, y: -1, z: 0), simd_float3(x: -1, y: 1, z: 0)] let vertexSource = SCNGeometrySource(data: Data(bytes: vertices, count: MemoryLayout<simd_float3>.size * vertices.count), semantic: .vertex, vectorCount: vertices.count, usesFloatComponents: true, componentsPerVector: 3, bytesPerComponent: MemoryLayout<Float>.size, dataOffset: 0, dataStride: MemoryLayout<simd_float3>.stride) let indices: [Int32] = Array(0..<Int32(vertices.count)) let element = SCNGeometryElement(data: Data(bytes: indices, count: MemoryLayout<Int32>.size * indices.count), primitiveType: .polygon, primitiveCount: 1, bytesPerIndex: MemoryLayout<Int32>.size) let geometry = SCNGeometry(sources: [vertexSource], elements: [element]) which logs this error in the Xcode console: [SceneKit] Error: SCNGeometryElement initialization - Invalid polygon edge count (0) There also doesn't seem to be any documentation about how to use this .polygon mode. When using .triangleStrip with a primitiveCount of 2, no error is logged.
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1.9k
May ’22
Store Swift closures and cast them back to their original type
I'm trying to create a class that can save different closures (or methods) with an argument of a specific subtype of Decodable that should be called later. This way I can predefine what actions, or methods, can be called on that class in response to some input. For example, the line addCallback(setOption(_:), SetOptionRequest.self) should result in the subsequent call to try! performCallback("setOption", JSONEncoder().encode(SetOptionRequest()) to call setOption(data) where the argument data has type SetOptionRequest. Here is the code I have so far (I took the bit about DecodableWrapper from here). The problem is that at runtime the cast callback.callback as! (ActionRequest) throws -> Void fails, since the type of the closure is not (ActionRequest) throws -> Void but (SetOptionRequest) throws -> Void. But I have no idea if and how I can cast the closure back to its original type. I considered using Selectors but I would like to keep the compile-time check that I'm binding methods with their correct argument type. struct DecodableWrapper: Decodable { static var baseType: ActionRequest.Type! var base: ActionRequest init(from decoder: Decoder) throws { self.base = try DecodableWrapper.baseType.init(from: decoder) } } open class Server { private var actionCallbacks = [String: (callback: Any, dataType: ActionRequest.Type)]() open func setup() { addCallback(setOption, action: SetOptionRequestResponse.self) } public func addCallback<T: ActionRequest>(_ callback: @escaping (_ data: T) throws -> Void, action: T.Type) { actionCallbacks[T.action] = (callback, T.self) } private func performCallback(action: String, data: Data) throws { let callback = actionCallbacks[action]! DecodableWrapper.baseType = callback.dataType let data = try! JSONDecoder().decode(DecodableWrapper.self, from: data).base try (callback.callback as! (ActionRequest) throws -> Void)(data) } private func setOption(_ data: SetOptionRequest) { } } protocol ActionRequest { static var action: String } struct Request: SetOptionRequest { }
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630
Jan ’22