macOS 26 sometimes draws the title bar background even when setting NSWindow.titlebarAppearsTransparent = true and I don't understand the logic behind it, or how I can turn this off. I'm trying to do something similar to Xcode's "Welcome to Xcode" window which has a left view and a right table view. In my simplified example, the window contains a label and a text view. This used to work in macOS 15, but in macOS 26 the text view is partially covered by the title bar: As soon as I remove the line scrollView.hasVerticalScroller = true, the title bar isn't drawn anymore: The title bar also isn't drawn when removing the view on the left of the text view: I created FB20341654. This may be related to this other issue: NSWindow.titlebarAppearsTransparent only works after collapsing and expanding sidebar @main class AppDelegate: NSObject, NSApplicationDelegate { func applicationDidFinishLaunching(_ aNotification: Notification) { let window = NSWindow(contentViewController: ViewController()) window.titlebarAppearsTransparent = true window.titleVisibility = .hidden window.styleMask = [.titled, .closable, .fullSizeContentView] window.makeKeyAndOrderFront(nil) } } class ViewController: NSViewController { override func loadView() { view = NSView(frame: CGRect(x: 0, y: 0, width: 400, height: 200)) let scrollView = NSScrollView() scrollView.hasVerticalScroller = true // commenting this line out solves the issue scrollView.translatesAutoresizingMaskIntoConstraints = false scrollView.automaticallyAdjustsContentInsets = false let documentView = NSTextView() documentView.string = (0..<10).map({ "\($0)" }).joined(separator: "\n") scrollView.documentView = documentView let stack = NSStackView(views: [ NSTextField(labelWithString: "asdfasdfasdfasdf"), // commenting this line out also solves the issue scrollView ]) stack.orientation = .horizontal view.addSubview(stack) NSLayoutConstraint.activate([stack.topAnchor.constraint(equalTo: view.topAnchor), stack.leadingAnchor.constraint(equalTo: view.leadingAnchor), stack.trailingAnchor.constraint(equalTo: view.trailingAnchor), stack.bottomAnchor.constraint(equalTo: view.bottomAnchor)]) } }

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?

The default app menu on iPadOS 26 includes an Edit menu with items (among others) Cut, Copy, Paste, Paste and Match Style. I want to remove the last one. I tried the following but nothing worked: let configuration = UIMainMenuSystem.Configuration() configuration.textFormattingPreference = .removed UIMainMenuSystem.shared.setBuildConfiguration(configuration) { builder in builder.remove(action: .pasteAndMatchStyle) if let command = builder.menu(for: .edit)?.children.first(where: { ($0 as? UICommand)?.action == #selector(UIResponderStandardEditActions.pasteAndMatchStyle(_:)) }) as? UICommand { command.attributes.insert(.hidden) } }

Here is the code: UIView.setAnimationsEnabled(false) let _ = textView.becomeFirstResponder() UIView.setAnimationsEnabled(true) Is there a way I can make the text view first responder without triggering an animation, so that I can set a custom scroll offset at the same time?

When tapping the Handoff icon of my app on the Mac or on the iPad, Xcode logs this error: [default personal] [ERROR] +[NSURL(BRAdditions) br_documentURLFromBookmarkableString:error:]: (passed to caller) error: Error Domain=BRCloudDocsErrorDomain Code=8 "Not Entitled" UserInfo={NSDescription=Not Entitled} When setting a breakpoint at NSApplicationDelegate.application(_:continue:restorationHandler:), I can see that userInfo.activityType is the one specified with the key NSUbiquitousDocumentUserActivityType under the Info.plist Document Types, but userActivity.userInfo is empty, so the document url is apparently not sent. Is there something else I have to set up?

I have a custom UITextView where entering text causes the undo button in the software keyboard to be enabled. When I override the undo manager like this: class TextView: UITextView { let _undoManager = UndoManager() override var undoManager: UndoManager? { return _undoManager } } the auto-enabling of the undo button doesn't work anymore. What is the correct way of providing my own undo manager?

My app allows scanning any selected directory, but I noticed that even when I enable Full Disk Access in the System Preferences, when enumerating the contents of any of the subdirectories of another user's home folder (Documents, Downloads etc.) a permission error is returned. Even when running the app from the Terminal with sudo nothing changes. Using sudo du works. Is this a limitation of macOS apps?

Up until macOS 12, there was a checkbox labelled "Hide" for each login item in the Users & Groups System Preferences. Now in macOS 13 the login items have been moved to the General System Preferences, but the "Hide" checkbox has disappeared. Is there a way to know from within the app that it was launched as a login item, without offering an in-app "Launch at login" option which would allow me to control the whole process, but would be quite some effort to just replace that one little option?

The desired outcome of the code below is that both the red and yellow spheres should be at the same position at the center of the scene, (0, 0, 0), but instead the red sphere remains at its initial position (1, 0, 0). Commenting out any of the lines marked in the code, strangely, solves the issue. The code shows a simplified version of some other code, so it would be desirable to keep the order of the lines as they currently are. Am I doing something wrong? class GameViewController: NSViewController {          override func viewDidLoad() {         super.viewDidLoad()                  let scene = SCNScene(named: "art.scnassets/ship.scn")!                  let cameraNode = SCNNode()         cameraNode.camera = SCNCamera()         scene.rootNode.addChildNode(cameraNode)         cameraNode.position = SCNVector3(x: 0, y: 0, z: 15)                  let lightNode = SCNNode()         lightNode.light = SCNLight()         lightNode.light!.type = .omni         lightNode.position = SCNVector3(x: 0, y: 10, z: 10)         scene.rootNode.addChildNode(lightNode)                  let scnView = self.view as! SCNView         scnView.scene = scene                  let parent0 = SCNNode()         scene.rootNode.addChildNode(parent0)         let parent1 = SCNNode()         scene.rootNode.addChildNode(parent1)         let sphere0 = SCNNode(geometry: SCNSphere(radius: 1))         sphere0.geometry!.firstMaterial!.diffuse.contents = NSColor.red                  let sphere1 = SCNNode(geometry: SCNSphere(radius: 1))         sphere1.geometry!.firstMaterial!.diffuse.contents = NSColor.yellow                  sphere0.position = SCNVector3(x: -1, y: 0, z: 0) // commenting out this line solves the issue         parent1.addChildNode(sphere0) // or commenting out this line solves the issue         sphere0.position = SCNVector3(x: 0, y: 0, z: 0)         parent0.addChildNode(sphere1) // or commenting out this line solves the issue                  DispatchQueue.main.asyncAfter(deadline: .now() + 1) {             print(sphere0.worldPosition, sphere1.worldPosition)         }     } }

I'm trying to adapt the Filter Network Traffic sample code found at https://developer.apple.com/documentation/networkextension/filtering_network_traffic In FilterDataProvider.swift I've replaced the argument passed to NEFilterDataProvider.apply(_:completionHandler:) with nil, which according to the documentation should apply the default settings. Instead I'm getting the following error: Error Domain=NEFilterErrorDomain Code=1 "The settings parameter doesn’t correspond to a NEFilterSettings object" (translated from my local language) (When logging the error with os_log, the Console app just shows it as <private>. A NSLog call instead displays it correctly.) After that the internet doesn't seem to work at all anymore and I have to trash the app to make the internet work again. (If the bin is not completely empty before trashing the app from the Applications folder, I'm prompted that there is another operation in progress like moving a file.) If a nil parameter doesn't work, what is the correct way of not filtering anything, but just observing all the network traffic?

I'm using this code to get the path of an executable from the audit token provided in NEFilterDataProvider.handleNewFlow(_:): private func securePathFromAuditToken(_ auditToken: Data) throws -> String? { let secFlags = SecCSFlags() var secCode: SecCode? var status = SecCodeCopyGuestWithAttributes(nil, [kSecGuestAttributeAudit: auditToken] as CFDictionary, secFlags, &secCode) guard let secCode = secCode else { throw SecError(status) } var secStaticCode: SecStaticCode? status = SecCodeCopyStaticCode(secCode, secFlags, &secStaticCode) guard let secStaticCode = secStaticCode else { throw SecError(status) } var dict: CFDictionary? status = SecCodeCopySigningInformation(secStaticCode, secFlags, &dict) guard let dict = dict as NSDictionary? else { throw SecError(status) } if let identifier = dict[kSecCodeInfoIdentifier as String] as? String, let path = NSWorkspace.shared.urlForApplication(withBundleIdentifier: identifier)?.path { return path } else if let path = dict[kSecCodeInfoMainExecutable as String] as? String { return path } return nil } But it seems that only applications inside the /Applications folder have a non-nil path. For all other executables I have to resort to this code, which I have read is not as secure: private func insecurePathFromAuditToken(_ auditToken: Data) throws -> String? { if auditToken.count == MemoryLayout<audit_token_t>.size { let pid = auditToken.withUnsafeBytes { buffer in audit_token_to_pid(buffer.baseAddress!.assumingMemoryBound(to: audit_token_t.self).pointee) } let pathbuf = UnsafeMutablePointer<Int8>.allocate(capacity: Int(PROC_PIDPATHINFO_SIZE)) defer { pathbuf.deallocate() } let ret = proc_pidpath(pid, pathbuf, UInt32(PROC_PIDPATHINFO_SIZE)) if ret <= 0 { throw NSError(domain: NSPOSIXErrorDomain, code: Int(errno)) } return String(cString: pathbuf) } return nil } This seems to happen with both NEFilterFlow.sourceAppAuditToken and sourceProcessAuditToken. Is this expected? Can it really be that all executables that are not apps shipped with macOS are not signed?

In my UI test I'm trying to set different languages. I noticed that with right-to-left languages, such as Arabic, the UI is still aligned left-to-right. When I manually run the app with the scheme's language set to Arabic, the UI is correctly aligned right-to-left. Am I missing something? let app = XCUIApplication() app.launchArguments += ["-AppleLanguages", "(ar)"] app.launch()

In my UI test I'm trying to force some user defaults. It seems that one can override them with code such as: var app = XCUIApplication() app.launchArguments += ["-myUserDefaultKey", "value"] app.launch() But I would like to replace the value of a default where the key contains whitespaces, such as the key created automatically when setting NSSplitView.autosaveName = "someSplitView", which is NSSplitView Subview Frames someSplitView. I tried escaping the whitespaces with NSSplitView\\ Subview\\ Frames\\ someSplitView and putting the key between single or double quotes, but nothing helped. Is this somehow possible? Also, what would be the preferred way of temporarily removing a user default instead of overwriting it?

After successfully implementing a scan with getattrlistbulk (thanks to https://developer.apple.com/forums/thread/656787/), I'm now trying for each file to get whether the extension is shown in the Finder or not. I think this could be read from the Finder Info (i.e.ATTR_CMN_FNDRINFO), although I'm not sure, since there doesn't seem do be any documentation about what this attribute actually contains. From the setattrlist documentation archive it seems that it is char[32], and I've tried different changes within readUnaligned() so that it would work with an array, but I couldn't get it to work. Below is my current implementation. The comment How to get Finder Info? shows where the implementation currently doesn't work. class AppDelegate: NSObject, NSApplicationDelegate { private static var attributeKeys: attrlist = { var attributeKeys = attrlist() attributeKeys.bitmapcount = u_short(ATTR_BIT_MAP_COUNT) attributeKeys.commonattr = attrgroup_t(ATTR_CMN_RETURNED_ATTRS) | attrgroup_t(bitPattern: ATTR_CMN_ERROR | ATTR_CMN_NAME | ATTR_CMN_OBJTYPE | ATTR_CMN_MODTIME | ATTR_CMN_FNDRINFO | ATTR_CMN_FILEID) attributeKeys.fileattr = attrgroup_t(bitPattern: ATTR_FILE_DATALENGTH) return attributeKeys }() private let bufferWithAlignment16 = UnsafeMutableRawBufferPointer.allocate(byteCount: 256, alignment: 16) func applicationDidFinishLaunching(_ notification: Notification) { let openPanel = NSOpenPanel() openPanel.canChooseDirectories = true openPanel.canChooseFiles = false openPanel.runModal() try! scan(directoryPath: openPanel.urls[0].path) } deinit { bufferWithAlignment16.deallocate() } func scan(directoryPath: String) throws { let fileDescriptor = open(directoryPath, O_RDONLY) if fileDescriptor < 0 { throw NSError(domain: NSPOSIXErrorDomain, code: Int(errno)) } defer { let result = close(fileDescriptor) assert(result == 0) } let attributeBuffer = UnsafeMutableRawBufferPointer.allocate(byteCount: 2048, alignment: 16) defer { attributeBuffer.deallocate() } while true { let itemCount = Int(getattrlistbulk(fileDescriptor, &AppDelegate.attributeKeys, attributeBuffer.baseAddress!, attributeBuffer.count, 0)) if itemCount == 0 { return } else if itemCount > 0 { var entryOffset = attributeBuffer.baseAddress! for _ in 0..<itemCount { let length = Int(entryOffset.load(as: UInt32.self)) try unpackResources(at: entryOffset + MemoryLayout<UInt32>.size, parentDirectory: directoryPath) entryOffset += length } } else if errno != EINTR { throw NSError(domain: NSPOSIXErrorDomain, code: Int(errno)) } } } private func unpackResources(at attributeOffset: UnsafeMutableRawPointer, parentDirectory: String) throws { var attributeOffset = attributeOffset let returned = attributeOffset.load(as: attribute_set_t.self) attributeOffset += MemoryLayout<attribute_set_t>.size var error: Error? if (returned.commonattr & attrgroup_t(bitPattern: ATTR_CMN_ERROR)) != 0 { error = NSError(domain: NSPOSIXErrorDomain, code: Int(attributeOffset.load(as: UInt32.self))) attributeOffset += MemoryLayout<UInt32>.size } let name: String if (returned.commonattr & attrgroup_t(bitPattern: ATTR_CMN_NAME)) != 0 { let nameInfo = attributeOffset.load(as: attrreference_t.self) name = String(cString: (attributeOffset + Int(nameInfo.attr_dataoffset)).assumingMemoryBound(to: CChar.self)) attributeOffset += MemoryLayout<attrreference_t>.size } else { name = "" } let fileType: fsobj_type_t if (returned.commonattr & attrgroup_t(bitPattern: ATTR_CMN_OBJTYPE)) != 0 { fileType = attributeOffset.load(as: fsobj_type_t.self) attributeOffset += MemoryLayout<fsobj_type_t>.size } else { fileType = VNON.rawValue } var modificationDate: Date? if (returned.commonattr & attrgroup_t(bitPattern: ATTR_CMN_MODTIME)) != 0 { modificationDate = Date(timeIntervalSince1970: TimeInterval(readUnaligned(pointer: attributeOffset, as: timespec.self).tv_sec)) attributeOffset += MemoryLayout<timespec>.size } // How to get Finder Info? let finderInfo: [Int8] if (returned.commonattr & attrgroup_t(bitPattern: ATTR_CMN_FNDRINFO)) != 0 { finderInfo = readUnaligned(pointer: attributeOffset, as: [Int8].self) attributeOffset += MemoryLayout<Int8>.size } else { finderInfo = [] } let fileId: UInt64 if (returned.commonattr & attrgroup_t(bitPattern: ATTR_CMN_FILEID)) != 0 { fileId = readUnaligned(pointer: attributeOffset, as: UInt64.self) attributeOffset += MemoryLayout<UInt64>.size } else { fileId = 0 } let size: Int64 if (returned.fileattr & attrgroup_t(bitPattern: ATTR_FILE_DATALENGTH)) != 0 { size = Int64(readUnaligned(pointer: attributeOffset, as: off_t.self)) attributeOffset += MemoryLayout<off_t>.size } else { size = 0 } if let error = error { throw error } let isDirectory = fileType == VDIR.rawValue let isSymbolicLink = fileType == VLNK.rawValue print(name, isDirectory, isSymbolicLink, modificationDate as Any, finderInfo, fileId, size) } private func readUnaligned<Result>(pointer: UnsafeRawPointer, as: Result.Type) -> Result { bufferWithAlignment16.copyMemory(from: UnsafeRawBufferPointer(start: pointer, count: MemoryLayout<Result>.size)) return bufferWithAlignment16.baseAddress!.load(as: Result.self) } }

A customer reported that when my app creates directories on their NAS, an error is shown. With their cooperation I boiled the source of the error down to setting URLResourceKey.fileSecurityKey on the directory URL, or setting any of FileAttributeKey.groupOwnerAccountID, .groupOwnerAccountName, .ownerAccountID or .ownerAccountName with FileManager. I thought that maybe URLResourceKey.volumeSupportsExtendedSecurityKey would allow me to determine in advance if setting any of these attributes works, but it seems that the result is false on one of my exFAT drives which doesn't yield any error when setting any of the attributes. I don't even know what "extended security" means in this case, and it doesn't seem to be documented. Should I rely on URLResourceKey.volumeSupportsExtendedSecurityKey? I tried running chown -vv myusername:admin on a file on that exFAT drive: even if the output includes the text 501:20 -&gt; 501:80, which I assume means that the group should have been changed to admin, running the command again yields the exact same output and running stat shows that the group is still staff.