If an app is rated 4+, does it have any additional obligation due to the SB2420 beyond this rating on the AppStore ?
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I tried to post a reply to a thread. It seems to be posted, but does not appear in the thread once sent…
After porting code to Swift 6 (Xcode 16.4), I get a consistent crash (on simulator) when using UNUserNotificationServiceConnection
It seems (searching on the web) that others have met the same issue. Is it a known Swift6 bug ? Or am I misusing UNUserNotification ?
I do not have the crash when compiling on Xcode 26 ß5, which hints at an issue in Xcode 16.4.
Crash log:
Thread 10 Queue : com.apple.usernotifications.UNUserNotificationServiceConnection.call-out (serial)
As far as I can tell, it seems error is when calling
nonisolated func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
I had to declare non isolated to solve a compiler error.
Main actor-isolated instance method 'userNotificationCenter(_:didReceive:withCompletionHandler:)' cannot be used to satisfy nonisolated requirement from protocol 'UNUserNotificationCenterDelegate'
I was advised to:
Add 'nonisolated' to 'userNotificationCenter(_:didReceive:withCompletionHandler:)' to make this instance method not isolated to the actor
I filed a bug report: Aug 10, 2025 at 2:43 PM – FB19519575
Topic:
App & System Services
SubTopic:
Notifications
Tags:
Swift
Xcode
Notification Center
User Notifications
I'm struggling to convert Swift 5 to Swift 6.
As advised in doc, I first turned strict concurrency ON. I got no error.
Then, selected swift6… and problems pop up.
I have a UIViewController with
IBOutlets: eg a TextField.
computed var eg duree
func using UNNotification: func userNotificationCenter
I get the following error in the declaration line of the func userNotificationCenter:
Main actor-isolated instance method 'userNotificationCenter(_:didReceive:withCompletionHandler:)' cannot be used to satisfy nonisolated requirement from protocol 'UNUserNotificationCenterDelegate'
So, I declared the func as non isolated.
This func calls another func func2, which I had also to declare non isolated.
Then I get error on the computed var used in func2
Main actor-isolated property 'duree' can not be referenced from a nonisolated context
So I declared duree as nonsilated(unsafe).
Now comes the tricky part.
The computed var references the IBOutlet dureeField
if dureeField.text == "X"
leading to the error
Main actor-isolated property 'dureeField' can not be referenced from a nonisolated context
So I finally declared the class as mainActor and the textField as nonisolated
@IBOutlet nonisolated(unsafe) weak var dureeField : UITextField!
That silences the error (but declaring unsafe means I get no extra robustness with swift6) just to create a new one when calling dureeField.text:
Main actor-isolated property 'text' can not be referenced from a nonisolated context
Question: how to address properties inside IBOutlets ? I do not see how to declare them non isolated and having to do it on each property of each IBOutlet would be impracticable.
The following did work, but will make code very verbose:
if MainActor.assumeIsolated({dureeField.text == "X"}) {
So I must be missing something.
Is it only me (or a localisation issue in french) or is there a bug in the submission form (buttons titles):
But acceptance (dark blue button) works as intended.
Just testing an existing app with Xcode 26.
I notice that content of UIBarButtonItem (either text or image) disappears when tapped (and reappear on release).
Those are custom, bordered buttons.
Attribute inspector:
Buttons in Xcode:
When selected in Xcode, we see a rectangle inside the rounder rect of iOS 26
In simulator:
When tapped in simulator:
I have edited code from
backButton.setTitleTextAttributes([
.font : boldFont,
.foregroundColor : UIColor.systemBlue,
], for: .normal)
to
backButton.setTitleTextAttributes([
.font : boldFont,
.foregroundColor : UIColor.systemBlue,
], for: [.normal, .focused, .selected, .highlighted])
to no avail.
What am I missing ?
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.