Hi fellow devs, I have a quick question is it possible to have virtual controllers on Mac. For instance can my app exclusively manage the controller and output it into the Game Controller framework? And create a virtual controller to allow for features such as controller emulation, haptic control, and others.

Consider this code: import SwiftUI struct ContentView: View { var body: some View { NavigationView { EmptyView() } } } Which looks like this: How can I prevent the sidebar from being resized by a mouse and from being hidden? P.S. Can consider using AppKit if it can help.

I failed to resize the icon image from instances of NSRunningApplication. I can only get 32×32 while I'm expecting 16×16. I felt it unintuitive in first minutes… Then I figured out that macOS menu seems not allowing many UI customizations (for stability?), especially in SwiftUI. What would be my best solution in SwiftUI? Must I write some boilerplate SwiftUI-AppKit bridging?

I have an existing iOS app with MapKit. It always shows the current user location with UserAnnotation. But the same isn't true for macOS. I have this sample macOS application in SwiftUI. In the following, the current user location with a large blue dot appears only occasionally. It won't, 19 of 20 times. Why is that? I do have a location privacy key in Info.plist. And the Location checkbox is on under Signing & Capabilities. import SwiftUI import MapKit struct ContentView: View { @State private var markerItems: [MarkerItem] = [ MarkerItem(name: "Farmers Market 1", lat: 35.681, lon: 139.691), MarkerItem(name: "Farmers Market 2", lat: 35.685, lon: 139.695), MarkerItem(name: "Farmers Market 3", lat: 35.689, lon: 139.699) ] @State private var position: MapCameraPosition = .automatic var body: some View { Map(position: $position) { UserAnnotation() ForEach(markerItems, id: \.self) { item in Marker(item.name, coordinate: CLLocationCoordinate2D(latitude: item.lat, longitude: item.lon)) } } .mapControlVisibility(.hidden) .mapStyle(.standard(elevation: .realistic)) .ignoresSafeArea() } } #Preview { ContentView() } struct MarkerItem: Hashable { let name: String let lat: Double let lon: Double }

Currently, we are developing an all-in-one DualSense utility for macOS. We are exploring how to integrate shortcuts into our app. Our vision is to have the user use the native Shortcuts app to choose the controller buttons that should trigger the shortcut action, such as opening Steam, turning on audio haptics, and more. As we explore this approach, we want to see whether we need to build the UI in our app to set the triggers or can we do this inside of Shortcuts? Can button presses recorded by our app trigger shortcuts? Can those button inputs be customized inside of Shortcuts or should we develop it into our app? And if we have it in our app, can our app see, select, and trigger shortcuts?

We're updating a FileProvider-based app which was written for Big Sur to recent macOS. The system requires that the extension be manually enabled by the user in System Preferences -- either under Extensions > Added Extensions, Privacy & Security > Extensions > Added Extensions, or in newer versions General > Login Items & Extensions. Is there a programmatic (preferably Swift) or installer-based way to enable this checkbox-- or at least to detect if it has been enabled for a particular app, and if not bring up the appropriate pane of Preferences? (For which I'd need a complete OS-version-specific list of which pane to bring up.) (I can detect whether our particular NSFileProviderDomain has its userEnabled flag set after it's defined during the mounting process, but I'd rather be able to detect / set it during initial setup.)

Issue After upgrading to Tahoe 26.2, print queues monitored by PaperCut no longer work. The print queue gets paused, and the jobs fail to print. This issue was discovered during our internal testing prior to the Tahoe 26.2 public release, and a growing number of our mutual customers have also reported it since then. Root cause This appears to be due to changes in the behavior of CUPS Sandbox restrictions, which prevent the backend (and filter) from reading/writing to the PaperCut install folder. Error messages From syslog. 2025-12-22 16:41:59.283761+1100 0x1daf61 Error 0x0 0 0 kernel: (Sandbox) Sandbox: papercut(5783) deny(1) file-write-data /Library/Printers/PaperCut/Print Provider/print-provider.log When trying to create a TCP socket from the PaperCut filter. 2025-12-15 19:50:08,403 ERROR: os_tcp_socket_create: getaddrinfo failed: nodename nor servname provided, or not known Technical details PaperCut implements print queue monitoring using a CUPS backend (and filter). CUPS backends and filters run in a security 'sandbox' which limits what they can do (such as file/folder access, create network sockets, and execute sub-processes, etc.). The PaperCut backend (and filter) relies on some of these operations, so to function correctly, our code updates /etc/cups/cups-files.conf with "Sandboxing relaxed". Until 26.2, this relaxed mode allowed us to read/write to PaperCut folders, create TCP sockets to communicate with the local PaperCut Application Server, and execute/kill sub-processes. As an alternative to the relaxed mode, we also tried "Sandboxing off", but that doesn't help either (from CUPS scheduler/conf.h). typedef enum { CUPSD_SANDBOXING_OFF, /* No sandboxing */ CUPSD_SANDBOXING_RELAXED, /* Relaxed sandboxing */ CUPSD_SANDBOXING_STRICT /* Strict sandboxing */ } cupsd_sandboxing_t; Test code We can provide a simplified version of our backend that demonstrates the issue if required Questions Has the CUPS sandbox relaxing changed? According to the CUPS man pages (cups-files.conf(5)), "Sandboxing relaxed" should still work as before. If this is the new intended behavior, what are the other options/directives we can use to relax the limitations on CUPS backends and filters?

Hi there. I am trying to figure out how to make a macOS Tahoe app in SwiftUI with a sidebar. The problem I’m having is that the icons are the wrong size. If you visually compare the resulting sidebar with any built-in macOS app (Finder, Notes, Mail, Music, etc.) the built-in apps all have larger icons and the spacing is different from my SwiftUI app, which has too small icons and (I think) wrong spacing. I am trying to figure out what SwiftUI code I need to write to get a sidebar that looks the same as the other built-in macOS Tahoe apps. It’s also important to note that Tahoe sidebars have larger icons at the top level, and in cases where the items have a disclosure triangle with additional items nested within, the nested icons have smaller icons. I have not figured out how to properly replicate this effect either. I have spent quite a lot of time on trial-and-error with various combinations of .frame() and .font() modifiers. However, none of the results look quite right to me, and besides that, I think it is fundamentally the wrong approach; the UI or OS should be handling the sizing and spacing automatically, I shouldn’t have to specify it manually, as this is likely to break in past and future OS versions (and it never really looks exactly right in the first place). I am hoping there is some missing modifier that I am unaware of, which would solve this; or perhaps, some fundamental aspect of making lists in sidebars that I have missed. I would very much appreciate any advice. If you drop my code below into a new Xcode project, and compare it to a Finder window, you should be able to easily see the problem. import SwiftUI struct ContentView: View { var body: some View { splitView } @ViewBuilder var splitView: some View { NavigationSplitView { sidebar } detail: { helloWorld } } @ViewBuilder var sidebar: some View { List { NavigationLink { helloWorld } label: { Label("Test", systemImage: "book") } NavigationLink { helloWorld } label: { Label("Test 2", systemImage: "folder") } NavigationLink { helloWorld } label: { Label("Test 3", systemImage: "house") } DisclosureGroup( content: { NavigationLink { helloWorld } label: { Label("Test", systemImage: "book") } NavigationLink { helloWorld } label: { Label("Test 2", systemImage: "folder") } NavigationLink { helloWorld } label: { Label("Test 3", systemImage: "house") } }, label: { Label("Test 4", systemImage: "document") } ) } } @ViewBuilder var helloWorld: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Hello, world!") } .padding() } } #Preview { ContentView() }

When trying to open an encrypted CoreML model file on a system with SIP disabled, the error message is Failed to generate key request for <...> with error: -42187 This should state that SIP is disabled and needs to be enabled.

Hello, I am working on a cross‑platform application that uses libiconv to convert strings to/from Unicode. I need to modify the existing code for compatibility with macOS. However, the call to iconv() fails with an unclear errno value (92) when using "WCHAR_T": std::wstring ConvertToWchar(const std::string& iconvCodeSet, const std::string_view str) { iconv_t conv = iconv_open("WCHAR_T//TRANSLIT", iconvCodeSet.c_str()); if (conv == (iconv_t)-1) { std::cerr << "iconv_open() failed" << std::endl; return {}; } std::wstring out(str.size(), L'\0'); auto inPtr = (char*)str.data(); size_t inSize = str.size(); auto outPtr = (char*)out.data(); size_t outSize = out.size() * sizeof(wchar_t); if (iconv(conv, &inPtr, &inSize, &outPtr, &outSize) == (size_t)-1) { std::cerr << "iconv() failed. errno = " << errno << std::endl; return {}; } if (iconv(conv, nullptr, &inSize, &outPtr, &outSize) == (size_t)-1) { std::cerr << "iconv() failed. errno = " << errno << std::endl; return {}; } iconv_close(conv); return out; } int main() { std::string str1((const char*)u8"ΟΔΥΣΣΕΥΣ"); std::wstring str2 = ConvertToWchar("UTF-8", str1); if (str2.empty()) return 1; std::cout << "converted" << std::endl; return 0; } Using "UTF-32" works fine, but "WCHAR_T//TRANSLIT" fails. What is the recommended way to convert wchar_t strings using libiconv? Why does the conversion fail with "WCHAR_T//TRANSLIT"? Thank you in advance!

The actual error: pkgbuild: error: Could not find appropriate signing identity for “Developer ID installer: My Name (DeveloperID)”. I'm trying to sign a program written with gfortran. The steps worked the last time (Mar 23) I built this code. The steps to error: a) xcrun notarytool store-credentials --apple-id "xxx" --team-id "yyy" Giving Profile Name zzz and App-specific password b) codesign --force --timestamp --options=runtime -s "Developer ID Application: My Name (yyy)" AppName c) pkgbuild --root ROOT --identifier org.aaa.bbb --version "1.1.1" --sign "Developer ID installer: My Name (yyy)" AppName.pkg ROOT contains the package contents At this point I get the error pkgbuild: error: Could not find appropriate signing identity for “Developer ID installer: My Name (yyy)” Are there steps that have changed. Any suggestions? Thanks, David

Hello, Back in January 2024, I filed a bug report regarding a cache being kept by the macOS Wallpaper Agent. This cache contains every image ever set as a users wallpaper, and at the time the issue was reported, it never cleared, leaving hundreds of gigabytes wasted on users disks in some cases. FB13536275 This issue was ultimately fixed in macOS 15.1 beta 6, and remained fixed for the duration of macOS 15. The fix was excellent - the cache was reduced to storing just 2-3 days worth of images. Sadly, we've discovered that this issue is back in macOS Tahoe. The cache has moved locations, and once again is not clearing. We have filed this bug again, less than a year after it was first fixed: FB20636593 We develop an app called 24 Hour Wallpaper that keeps the wallpaper in sync with the time of day. This necessitates that the app regularly changes the wallpaper, which sadly now results in an infinitely growing and useless cache of BMP files generated by the system. As we waited 10 months for this to get fixed the first time, we expect to wait at least that long to get it fixed again, and have no confidence that it will stay fixed because the last fix lasted less than a year. This leaves us in a bad position, as people can't use our app without the cache growing arbitrarily and ultimately completely filling their disk. We've already had customers call Apple to complain about this, and the good news is that the support agents understand that this is a problem with macOS, not with our app. What we've decided to do is add a feature to the app that monitors the size of this cache and periodically deletes it. We're required to get the users permission the first time to do this, but after that the permission is cached, so the app can keep the cache folder clean regardless of if macOS is doing it's job or not. We haven't seen any side effects or problems as a result of doing this. We've seen other apps like CleanMyMac do this without any problems. We're wondering if there is anything we should be aware of regarding this caches behavior before releasing this flushing feature. Thanks for your time, -josh

The documentation of the NSPopover property hasFullSizeContent says that when it's true, you should Use the safeAreaLayoutGuide of the contentViewController view to ensure that your content is fully visible and doesn’t become clipped when displayed. I can do that by adding auto-layout constraints programmatically, but is there a way to do it in the xib? When I googled it, the AI summary begins To use safe areas in a Mac XIB (Interface Builder), enable the "Use Safe Area Layout Guides" checkbox in the File Inspector for your view but I have not found any non-AI indications that such a checkbox exists for macOS. (I'm using Xcode 26.2.)

Hello, According to documentation, the App Store does not re-download the entire app when updating, but instead generates an update package containing only the changed content compared to the previous version. I’d like to clarify the following points: 1. Granularity of file changes If only part of a large file changes, does the update package include the entire file, or does it patch only the modified portions within that file? 2. Guideline on separating files The documentation recommends separating files that are likely to change from those that are not. How should this be interpreted in practice? 3. Verifying the diff result Is there a way for developers to check the actual diff result of the update package generated by the App Store without submitting the app? Is there a diff command tool or comparison method closer to the actual App Store update process? 4. Estimating update size during development For apps with large-scale resources, minimizing update size is critical. Are there any tools or best practices to estimate the size of the update package before submitting to the App Store? Any clarification or reference materials would be greatly appreciated. Thank you.

We recently upgraded OpenSSL from version 1.1.1 to 3.4.0. After this upgrade, we observed that PKCS#12 files generated using OpenSSL 3.4.0 fail to import into the macOS Keychain with the following error: Failed to import PKCS#12 data: -25264 (MAC verification failed during PKCS12 import (wrong password?)) This issue is reproducible on macOS 14.8.2. The same PKCS#12 files import successfully on other macOS versions, including 15.x and 26.x. Additionally, PKCS#12 files that fail to import on macOS 14.8 work correctly when copied and imported on other macOS versions without any errors. PKCS#12 Creation The PKCS#12 data is created using the following OpenSSL API: const char* platformPKCS12SecureKey = _platformSecureKey.has_value() ? _platformSecureKey.value().c_str() : NULL; PKCS12* p12 = PKCS12_create( platformPKCS12SecureKey, NULL, keys, _cert, NULL, 0, 0, 0, 0, 0 ); if (!p12) { throw std::runtime_error("Failed to create PKCS#12 container"); } PKCS#12 Import The generated PKCS#12 data is imported into the macOS Keychain using the following code: NSString *certPassKey = [NSString stringWithUTF8String:getCertPassKey()]; NSDictionary *options = @{ (__bridge id)kSecImportExportPassphrase: certPassKey, (__bridge id)kSecAttrAccessible: (__bridge id)kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly, (__bridge id)kSecAttrIsExtractable: @YES, (__bridge id)kSecAttrIsPermanent: @YES, (__bridge id)kSecAttrAccessGroup: APP_GROUP }; CFArrayRef items = NULL; OSStatus status = SecPKCS12Import( (__bridge CFDataRef)pkcs12Data, (__bridge CFDictionaryRef)options, &items );

This example application crashes when entering any text to the token field with FAULT: NSGenericException: The window has been marked as needing another Update Constraints in Window pass, but it has already had more Update Constraints in Window passes than there are views in the window. The app uses controlTextDidChange to update a live preview where it accesses the objectValue of the token field. If one character is entered, it also looks like the NSTokenFieldDelegate methods tokenField(_:styleForRepresentedObject:) tokenField(_:editingStringForRepresentedObject:) tokenField(_:representedObjectForEditing:) are called more than 10000 times until the example app crashes on macOS Tahoe 26 beta 6. I've reported this issue with beta 1 as FB18088608, but haven't heard back so far. I have multiple occurrences of this issue in my app, which is working fine on previous versions of macOS. I haven't found a workaround yet, and I’m getting anxious of this issue persisting into the official release.

On macOS 26.1 (25B78) I can't give Full Disk Access to sshd-keygen-wrapper. Now my Jenkins jobs do not work because they do not have the permission to execute the necessary scripts. Until macOS 26.1 everything worked fine. I restarted the machine several times and tried to give access from Settings -> Privacy & Security -> Full Disk Access but it just does not work. I tried logging with ssh on the machine and executing a script but again nothing happened.

I made a new app icon with Icon Composer, and added it to my Xcode project. In the built app, I see AppIcon.icon next to the old AppIcon.icns. But Tahoe is not showing the new icon. Is this because Tahoe has cached the old icon somewhere, and if so, is there some way to make it refresh?

Using SwiftUI on macOS, how can I add a toolbar item on the right-most (trailing) edge of the window's toolbar when an Inspector is used? At the moment, the toolbar items are all left-of (leading) the split view tracking separator. I want the inspector toolbar item to be placed similar to where Xcode's Inspector toolbar item is placed: always as far right (trailing) as possible. NavigationSplitView { // ... snip } detail: { // ... snip } .inspector(isPresented: $isInspectorPresented) { InspectorContentView() } .toolbar { // What is the correct placement value here? ToolbarItem(placement: .primaryAction) { Button { isInspectorPresented.toggle() } label: { Label("Toggle Inspector", systemImage: "sidebar.trailing") } } } See the attached screenshot. When the InspectorView is toggled open, the toolbar item tracks leading the split view tracking separator, which is not consistent with how Xcode works.

Ich habe Tahoe 26.2. installiert und bekomme nun keine Verbindungen zu externen Geräten (Keyboard, Synthesizer). KI gefragt und Antwort bekommen: Tahoe ist keine macOS-update und existiert nicht. Was ist die Wahrheit?