When looking ay space used by system, I found that AssetsV2 (in System/Library) account for 270 GB. In this folder, 3 account for 260 GB and are apparently related to Xcode simulators: Content is a bit cryptic. Does it relate to some specific apps I compiled and ran on simulator ? Or is it related to older versions of Xcode I keep on the Mac ? How to know what each forlder relates to ? Is it safe to remove ?

I sometimes use Xcode 14.2. Recently, I have an issue with simulators: on some SwiftUI project, the simulator list is empty. I created a new project. I see the complete list of simulators, but when running for a simulator, it fails with following diag; Same error with UIKit project. Details Unable to boot the Simulator. Domain: NSPOSIXErrorDomain Code: 60 Failure Reason: launchd failed to respond. User Info: { DVTErrorCreationDateKey = "2025-06-29 06:16:35 +0000"; IDERunOperationFailingWorker = "_IDEInstalliPhoneSimulatorWorker"; Session = "com.apple.CoreSimulator.SimDevice.134EC197-BA6B-45DF-B5B2-61A1D4F14863"; } -- Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding Domain: com.apple.SimLaunchHostService.RequestError Code: 4 -- Analytics Event: com.apple.dt.IDERunOperationWorkerFinished : { "device_model" = "iPhone15,2"; "device_osBuild" = "16.2 (20C52)"; "device_platform" = "com.apple.platform.iphonesimulator"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = "x86_64"; "operation_duration_ms" = 8341; "operation_errorCode" = 60; "operation_errorDomain" = NSPOSIXErrorDomain; "operation_errorWorker" = "_IDEInstalliPhoneSimulatorWorker"; "operation_name" = IDERunOperationWorkerGroup; "param_consoleMode" = 0; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com.apple.platform.iphonesimulator"; "param_diag_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 1; "param_diag_checker_tpc_enable" = 1; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "param_diag_queueDebugging_enable" = 1; "param_diag_runtimeProfile_generate" = 0; "param_diag_sanitizer_asan_enable" = 0; "param_diag_sanitizer_tsan_enable" = 0; "param_diag_sanitizer_tsan_stopOnIssue" = 0; "param_diag_sanitizer_ubsan_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 0; "param_launcher_UID" = 2; "param_launcher_allowDeviceSensorReplayData" = 0; "param_launcher_kind" = 0; "param_launcher_style" = 0; "param_launcher_substyle" = 0; "param_runnable_appExtensionHostRunMode" = 0; "param_runnable_productType" = "com.apple.product-type.application"; "param_runnable_type" = 2; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphonesimulator16.2"; "sdk_osVersion" = "16.2"; "sdk_variant" = iphonesimulator; } -- System Information macOS Version 12.7.1 (Build 21G920) Xcode 14.2 (21534) (Build 14C18) Timestamp: 2025-06-29T08:16:35+02:00 I filed a bug report: FB18475006

I have an @objC used for notification. kTag is an Int constant, fieldBeingEdited is an Int variable. The following code fails at compilation with error: Command CompileSwift failed with a nonzero exit code if I capture self (I edited code, to have minimal case) @objc func keyboardDone(_ sender : UIButton) { DispatchQueue.main.async { [self] () -> Void in switch fieldBeingEdited { case kTag : break default : break } } } If I explicitly use self, it compiles, even with self captured: @objc func keyboardDone(_ sender : UIButton) { DispatchQueue.main.async { [self] () -> Void in switch fieldBeingEdited { // <<-- no need for self here case self.kTag : break // <<-- self here default : break } } } This compiles as well: @objc func keyboardDone(_ sender : UIButton) { DispatchQueue.main.async { () -> Void in switch self.fieldBeingEdited { // <<-- no need for self here case self.kTag : break // <<-- self here default : break } } } Is it a compiler bug or am I missing something ?

There are at the moment a lot of spams for a bank phone number. https://developer.apple.com/forums/thread/769506 What is really surprising is to read App Store Connect Engineer answer, each time the same: We appreciate your interest in participating in the forums! These forums are for questions about developing software and accessories for Apple platforms. Your question seems related to a consumer feature and is better suited for the Apple Support Communities Is it an automatic answer (I cannot believe anyone who read the post did not notice it was a spam) ? If so, couldn't it simply detect it is a spam (Apple Intelligence could come to help) and delete the message (or the account) ? PS: it would also be a spam in Apple Support Communities PS2: I note the message has been deleted very rapidly.

I have created a custom class: class TarifsHeaderFooterView: UITableViewHeaderFooterView { …} With its init: override init(reuseIdentifier: String?) { super.init(reuseIdentifier: reuseIdentifier) configureContents() } I register the custom header view in viewDidLoad of the class using the tableView. Table delegate and data source are defined in storyboard. tarifsTableView.register(TarifsHeaderFooterView.self, forHeaderFooterViewReuseIdentifier: headerTarifsIdentifier) And call it: func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? { let view = tableView.dequeueReusableHeaderFooterView(withIdentifier: headerTarifsIdentifier) as! TarifsHeaderFooterView That works on iPhone (simulators and devices). But it crashes on any iPad simulator, as tableView.dequeueReusableHeaderFooterView(withIdentifier: headerTarifsIdentifier) is found nil. What difference between iPhone and iPad do I miss that explains this crash ? PS: sorry for the messy message. It looks like the new "feature" of the forum to put a Copy code button on the code parts, causes the code sections to be put at the very end of the post, not at the place they should be.

Capability to read and write ofd HFS disks on Mac has been removed since a long time. Capability to simply read was also removed since Catalina I think. That is surprising and sometimes frustrating. I still use a 90's MacBook for a few tasks and need from time to time to transfer files to newer Mac or read some old files stored on 3.5" disks. Solution I use is to read the disk on an old Mac with MacOS 10.6 (I'm lucky enough to have kept one) and transfer to USB stick or airdrop… As there is no USB port on the Macbook of course (and I have no more a working 56k modem to transfer by mail), only option if not 3,5" disk is using PCMCIA port on the MacBook for writing to an SD Card to be read in Mac Sonoma. But reading directly 3.5" disk would be great. Hence my questions for the forum: how hard would it be to write such a driver for READING only HFS on Mac Sonoma? There are some software like FuseHFS. Did anyone experience it ? Did anyone have a look at the source code (said to be open source). does anyone know why Apple removed such capability (I thought it was a tiny piece of code compared to the GB of present MacOS)? Thanks for any insights on the matter.

I get a crash in Apple Watch simulator (Series 9 45mm 18.0) as soon as the app launch if I type anything on external keyboard (just hitting command key for instance to capture a screenshot). Same crash on series 7 (45mm, OS 18.1) But app works normally when I use mouse to interact with the app on simulator. App does not crash on real device (Watch 4 OS 10.4.1). Nor does it crash on Series 6 simulator (44 mm OS 17.4). Here are the log I could collect (apparently, they contain sensitive language !!! so I attach as a file.: Attached logs

I feel a bit dumb now. I once succeeded to change the language of an app on Watch simulator. So it is possible. And I'm not able to repeat (fool of me I did not took note of how I did it). I just remember it was simply through some language settings selection, may be rebooting the Mac, but not by changing anything in code. Does someone know how to do ?

Not a question, but a surprise. Did I miss something, but apparently there has been no new beta release (16.3) since Release of 16.2 on Dec 11. 2 months without betas is really unusual (in fact, it never happened and usually, next beta n+1 is even released before the final release of version n). So does that mean 16.3 will be a major update ? Wait and see.

I have an alertController that is presented as popover on iPad let alertController = UIAlertController(title: alertTitle, message: alertMessage, preferredStyle: alertStyle) if let ppc = alertController.popoverPresentationController { // … } Is it possible to change the message font color (which is really very light on iPad) ? It is OK on iPhone with the same alert (not popover): text is much more readable:

I create a notification with an image attachment: let center = UNUserNotificationCenter.current() center.delegate = self let content = UNMutableNotificationContent() // some more stuff… let paths = NSSearchPathForDirectoriesInDomains( FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true) let documentsDirectory = paths[0] as NSString let fileExtPNG = "#" + "\(imageName)" + " photo.png" let fileNamePNG = documentsDirectory.appendingPathComponent(fileExtPNG) as String url = URL(fileURLWithPath: fileNamePNG) let attachment = try UNNotificationAttachment(identifier: "Image", url: url, options: nil) content.attachments = [attachment] I then add the request: let request = UNNotificationRequest(identifier:requestIdentifier, content: content, trigger: nil) center.removePendingNotificationRequests(withIdentifiers: [requestIdentifier]) center.add(request) {(error) in } Problem: when I later test (once notification has been registered), the file do not exist anymore at the url. I've commented out the add request to confirm. I have a work around, by creating a temporary copy of the file at the URL and pass it in the attachment. Then, everything works fine and the copy is deleted. But that's a bit bizarre. What am I missing here ?

When picking a photo in the gallery, whatever the orientation of the original image, size is always as landscape if let image = info[convertFromUIImagePickerControllerInfoKey(UIImagePickerController.InfoKey.editedImage)] as? UIImage { print("picked original", image.size) For a portrait photo: picked original (1122.0, 932.0) For a landscape: picked original (1124.0, 844.0) What am I missing ?

In this setup, label do not show properly because of the textColor. Labels are defined in IB, in the following hierarchy: ViewController View Label 1 scrollView View Button Label 2 Buttons show properly, but labels, even though defined with default label color appear as if their alpha was 0.2. It is even worse in dark mode: I have checked the settings for the label and did not find anything anormal: I have tried to change label color to system.gray 2, to no avail. If I change to red, does not show in red in IB. Problem appears for both Label 1 (at the top level in the view) and Label 2

In this UIKit app, I have to display numbers (from 1 to 100), in a label., on several lines, with 8 numbers on each line. Order is computed by the app for a specific purpose. The numbers are separated by space. Label font is Helvetica Neue 15.0. I want to get them aligned vertically. So, I have a padding so that they are all the same length of 4. Problem: the space have smaller width (half in fact) than digits, so alignment is disrupted: Of course, I can use fixed width fonts (like Menlo), but I've not found one that fits (the zero is barred, which is not looking great in the app). I have tried using class func monospacedDigitSystemFont( ofSize fontSize: CGFloat, weight: UIFont.Weight ) -> UIFont and apply to label.text. To no avail as it modifies only digits, not space char. I have found a workaround, padding with 2 spaces instead of one, but is there another solution ? So I am looking for a space character that would have the same width as a digit. There existe thin space (https://en.wikipedia.org/wiki/Whitespace_character) but not larger space. Does it exist ?

Apparently, settings do not show anymore the apps settings in iOS 18.2. I tested on simulators (Xcode 16.2) both on iOS 18.1 and iOS 18.2 and got very different results: In iOS 18.1 simulator, I see the settings of a lot of apps. In iOS 18.2 simulator, not a single app setting. That is a really serious issue in simulator for development (I filed a bug report FB16175635), but would be really critical on device as it would make it impossible to adjust setting of many apps. Unless I missed something (meta setting ?) in iOS 18.2 ? I have not upgraded to 18.2 notably for this reason. So I would appreciate if someone who has upgraded could make the test and report ? select Settings on Home page scroll to Apps category tap here to access the list Does the list show anything ? Thanks for your help.