When filtering traffic to localhost (127.0.0.1), it causes Maven repository synchronization to fail in IntelliJ IDEA. However, Maven works correctly when local traffic is not filtered. I will provide a minimal code reproduction below.
- (void)startFilterWithCompletionHandler:(void (^)(NSError *error))completionHandler {
// Add code to initialize the filter
NSMutableArray *rules = [NSMutableArray array];
NENetworkRule * rule = [[NENetworkRule alloc] initWithRemoteNetwork:nil remotePrefix:0 localNetwork:nil localPrefix:0 protocol:NENetworkRuleProtocolTCP direction:NETrafficDirectionAny];
[rules addObject:[[NEFilterRule alloc]initWithNetworkRule:rule action:NEFilterActionFilterData]];
rule = [[NENetworkRule alloc] initWithRemoteNetwork:nil remotePrefix:0 localNetwork:nil localPrefix:0 protocol:NENetworkRuleProtocolUDP direction:NETrafficDirectionAny];
[rules addObject:[[NEFilterRule alloc]initWithNetworkRule:rule action:NEFilterActionFilterData]];
NWHostEndpoint *hostEndpointIpv4 = [NWHostEndpoint endpointWithHostname:@"127.0.0.1" port:@"0"];
NENetworkRule *localHostRuleIpv4 = [[NENetworkRule alloc] initWithRemoteNetwork:hostEndpointIpv4
remotePrefix:32
localNetwork:hostEndpointIpv4
localPrefix:32
protocol:NENetworkRuleProtocolAny
direction:NETrafficDirectionAny];
[rules addObject:[[NEFilterRule alloc]initWithNetworkRule:localHostRuleIpv4 action:NEFilterActionFilterData]];
NEFilterSettings *filterSetting = [[NEFilterSettings alloc] initWithRules:rules defaultAction:NEFilterActionAllow];
[self applySettings:filterSetting completionHandler:^(NSError * _Nullable error) {
if (error) {
NSLog(@"Failed to apply filter settring: %@", error.localizedDescription);
}
completionHandler(error);
}];
}
Maven Sync error:
System Log:
默认 17:35:13.184509+0800 kernel cfil_inp_log:6179 <CFIL: outbound TCP data dropped for pre-existing un-filtered flow>: [41046 idea] <TCP out so 3bb6402f58a82e37 - flags 0x800840 0x80> lport 63166 fport 29735 laddr 127.0.0.1 faddr 127.0.0.1
默认 17:35:13.184510+0800 kernel cfil_inp_log:6179 <CFIL: outbound TCP data dropped for pre-existing un-filtered flow>: [41046 idea] <TCP out so d6dde374c8cb613b - flags 0x800840 0x80> lport 63165 fport 29735 laddr 127.0.0.1 faddr 127.0.0.1
默认 17:35:13.529546+0800 kernel cfil_inp_log:6179 <CFIL: outbound TCP data dropped for pre-existing un-filtered flow>: [41046 idea] <TCP out so cc915e74ba29f8cb - flags 0x800840 0x80> lport 63169 fport 39066 laddr 127.0.0.1 faddr 127.0.0.1
默认 17:35:13.529546+0800 kernel cfil_inp_log:6179 <CFIL: outbound TCP data dropped for pre-existing un-filtered flow>: [41046 idea] <TCP out so 2e15c3e54ebcc45 - flags 0x800840 0x80> lport 63168 fport 39066 laddr 127.0.0.1 faddr 127.0.0.1
默认 17:35:14.046094+0800 kernel cfil_inp_log:6179 <CFIL: outbound TCP data dropped for pre-existing un-filtered flow>: [41046 idea] <TCP out so 71f6d3a53472131f - flags 0x800840 0x80> lport 63172 fport 53241 laddr 127.0.0.1 faddr 127.0.0.1
默认 17:35:14.046145+0800 kernel cfil_inp_log:6179 <CFIL: outbound TCP data dropped for pre-existing un-filtered flow>: [41046 idea] <TCP out so c88a367c9717185b - flags 0x800840 0x80> lport 63171 fport 53241 laddr 127.0.0.1 faddr 127.0.0.1
Environment Details:
Operating System: macOS 15.5 (Sequoia)
IDE: IntelliJ IDEA 2025.1
Relevant Technology: NEFilterDataProvider (Network Extension)
I have found reports of similar problems online:
https://discussionschinese.apple.com/thread/255270330?sortBy=rank
https://blog.csdn.net/weixin_42339552/article/details/137402307
They all seem to be caused by network extension。
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In-App Subscriptions Not Fetching in Sandbox or Production (expo-iap / React Native / Bare Workflow)
Hi everyone,
I’m encountering an issue with my in-app subscriptions setup.
When I test using the StoreKit configuration file in Xcode, everything works correctly — the subscriptions are fetched and I can simulate purchases without any issues.
However, when I switch to the Sandbox or Production environment, my app fails to fetch the available products from Apple’s servers. The call to fetchProducts (from the expo-iap library) returns an empty array.
Here’s some context about my setup:
Framework: React Native (Expo Bare Workflow)
Library: expo-iap
Products: Auto-renewable subscriptions
StoreKit Configuration: Synced with App Store Connect
Status: Subscription Plans are approved in App Store Connect
I’ve verified the following:
The product identifiers in code match exactly with those in App Store Connect.
The app is signed with the correct bundle ID.
I’m testing with a Sandbox account (logged in via Settings -> Developer -> Sandbox Tester Account).
Despite this, the response from Apple’s servers still contains an empty array.
Has anyone experienced something similar with expo-iap or in general when moving from StoreKit configuration to Sandbox/Production? Any suggestions on what else I could check or common pitfalls I might be missing?
Thanks in advance!
Topic:
App & System Services
SubTopic:
StoreKit
Tags:
Subscriptions
StoreKit
App Store Connect
In-App Purchase
We are creating a Replicated FileProvider based application, where we want to handle different types of errors. As per doc: https://developer.apple.com/documentation/fileprovider/synchronizing-files-using-file-provider-extensions?language=objc#Handle-errors-elegantly
NSFileProviderErrorNotAuthenticated is a resolvable error, and once we report it, the system throttles the sync operation until something (most likely the app or extension) calls signalErrorResolved(:completionHandler:) to signal that the user or the server resolves the error.
But this is not happening in our app, see below the sample code snippet (showing just error related code to keep it concise):
NSProgress* MacFileProvider::modifyItem(....) {
NSProgress *nsProgress = [[NSProgress alloc] init];
nsProgress.totalUnitCount = NSURLSessionTransferSizeUnknown;
NSError *error = [NSError errorWithDomain:NSFileProviderErrorDomain
code:NSFileProviderErrorNotAuthenticated
userInfo:nil];
completionHandler(nil, 0, false, error);
return nsProgress;
}
Observed behaviour:
On making local edits to a file, though this function returns resolvable error, this function is being called multiple times with retry back-off interval. Also, this function is called when we edit other files as well.
Expected behaviour:
As we are returning resolvable error, system should have throttled the operation until we resolve the error. So, all sync operation should have stopped for any item.
Can someone please help understand this behaviour difference, and how to achieve the expected behaviour.
I see many anti-theft apps already released in the App Store that have a feature to immediately play a loud sound when the charger gets unplugged.
I can't find an API to make it work if the app is backgrounded, which is the main point.
How can I achieve this?
Topic:
App & System Services
SubTopic:
General
I got several reports about our TestFlight app crashing unconditionally on 2 devices (iOS 18.1 and iOS 18.3.1) on app start with the following reason:
Termination Reason: DYLD 4 Symbol missing
Symbol not found: _$sScIsE4next7ElementQzSgyYa7FailureQzYKF
(terminated at launch; ignore backtrace)
The symbol in question demangles to
(extension in Swift):Swift.AsyncIteratorProtocol.next() async throws(A.Failure) -> A.Element?
Our deploy target is iOS 18.0, this symbol was introduced in Swift 6.0, we're using latest Xcode 16 now - everything should be working, but for some reason aren't.
Since this symbol is quite rarely used directly, I was able to pinpoint the exact place in code related to it. Few days ago I added the following code to our app library (details omitted):
public struct AsyncRecoveringStream<Base: AsyncSequence>: AsyncSequence {
...
public struct AsyncIterator: AsyncIteratorProtocol {
...
public mutating func next(isolation actor: isolated (any Actor)? = #isolation) async throws(Failure) -> Element? {
...
}
}
}
I tried to switch to Xcode 26 - it was still crashing on affected phone. Then I changed next(isolation:) to its older version, next():
public mutating func next() async throws(Failure) -> Element?
And there crashes are gone. However, this change is a somewhat problematic, since I either have to lower Swift version of our library from 6 to 5 and we loose concurrency checks and typed throws or I'm loosing tests due to Swift compiler crash. Performance is also affected, but it's not that critical for our case.
Why is this crash happening? How can I solve this problem or elegantly work around it?
Thank you!
2025-10-09_17-13-31.7885_+0100-23e00e377f9d43422558d069818879042d4c5c2e.crash
Hello Apple Team,
We’re building a CloudKit-enabled Core Data app and would like clarification on the behavior and performance characteristics of Binary Data attributes with “Allows External Storage” enabled when used with NSPersistentCloudKitContainer.
Initially, we tried storing image files manually on disk and only saving the metadata (file URLs, dimensions, etc.) in Core Data. While this approach reduced the size of the Core Data store, it introduced instability after app updates and broke sync between devices. We would prefer to use the official Apple-recommended method and have Core Data manage image storage and CloudKit syncing natively.
Specifically, we’d appreciate guidance on the following:
When a Binary Data attribute is marked as “Allows External Storage”, large image files are stored as separate files on device rather than inline in the SQLite store.
How effective is this mechanism in keeping the Core Data store size small on device?
Are there any recommended size thresholds or known limits for how many externally stored blobs can safely be managed this way?
How are these externally stored files handled during CloudKit sync?
Does each externally stored Binary Data attribute get mirrored to CloudKit as a CKAsset?
Does external storage reduce the sync payload size or network usage, or is the full binary data still uploaded/downloaded as part of the CKAsset?
Are there any bandwidth implications for users syncing via their private CloudKit database, versus developer costs in the public CloudKit database?
Is there any difference in CloudKit or Core Data behavior when a Binary Data attribute is managed this way versus manually storing image URLs and handling the file separately on disk?
Our goal is to store user-generated images efficiently and safely sync them via CloudKit, without incurring excessive local database bloat or CloudKit network overhead.
Any detailed guidance or internal performance considerations would be greatly appreciated.
Thank you,
Paul Barry
Founder & Lead Developer — Boat Buddy / Vessel Buddy iOS App
Archipelago Environmental Solutions Inc.
I'm developing a Share Extension for a macOS Electron application that allows users to share files from Finder to our application using the system Share menu. The extension compiles, signs, and notarizes successfully, but crashes during initialization due to sandbox restrictions blocking hid-control operations required by NSApplication.
The Share Extension crashes during initialization with the following sandbox violation:
Process: ShareExtension [pid]
Identifier: com.xxxxxxxxxxxx.xxxxxxxxx.extension
Operation: hid-control
I would appreciate guidance on:
The proper entitlements for third-party Share Extensions with App Sandbox
Alternative approaches if Share Extensions have fundamental limitations for third-party developers
Any documentation or sample code demonstrating Share Extensions outside the App Store
While developing our driver, we've noticed that the *.ips report that contains the stacktrace of the crash is not always generated. I'm wondering why this report may not get generated, or if there's anything specific to do to guarantee it gets generated.
Hi,
Is it possible for a macOS (or iOS/ipadOS) app to communicate with a CCID-compliant reader using the CCID interface (i.e., directly sending the PC_TO_RDR_* messages) instead of using the CryptoTokenKit API?
Apple's CCID driver (/System/Library/CryptoTokenKit/usbsmartcardreaderd.slotd) seems to support all the PC_TO_RDR and RDR_TO_PC messages: https://blog.apdu.fr/posts/2023/11/apple-own-ccid-driver-in-sonoma/#enable-my-ccid-driver
The background for this question is that we develop smartcard products and we'd like to use the finer grained settings provided by the CCID specification for testing/demo purposes.
Thank you.
Dear Apple engineers,
We have developed a DriverKit (DEXT) driver for an HBA RAID controller.
The RAID controller is connected to hosts through Thunderbolt (PCIe port of the Thunderbolt controller).
We do plug/unplug tests to verify the developed driver. The test always fails in about 100 cycles with a MacOS crash (panic).
The panic contains
“LLC Bus error (Unavailable) from cpu0: FAR=0xa40100008 LLC_ERR_STS/ADR/INF=0x80/0x300480a40100008/0x1400000005 addr=0xa40100008 cmd=0x18(ACC_CIFL2C_CMD_RD_LD: request for load miss in E or S state)”
At first we assumed that the issue is with hardware. But we did this test on different hosts (MacMini M3 and M4) with different units of our device.
The error points to the same physical address FAR=0xa40100008 even if the hosts are different.
The 2 full panic logs are attached (one for M4, another one for M3 host).
Could you share your understanding of the crash and give any hints on how we can fix it?
Please let us know if you need any additional data.
Thank you
M3 panic:
https://drive.google.com/file/d/1GJXd3tTW6ajdrHpFsJxO_tWWYKYIgcMc/view?usp=share_link
M4 panic:
https://drive.google.com/file/d/1SU-3aBSdhLsyhhxsLknzw9wGvBQ9TbJC/view?usp=share_link
Topic:
App & System Services
SubTopic:
Drivers
Hi,
My app uses the NetworkExtension framework to connect to an access point.
For some reason, my app occasionally fails to find and/or connect to my AP (which I know is online and beaconing on a given frequency). This roughly happens 1/10 times.
I am using an iPhone 17, running iOS 26.0.1. I am connecting to a WPA2-Personal network.
In the iPhone system logs, I see the following:
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Notice>: Dequeuing command type: "Scan" pending commands: 0
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Notice>: __WiFiDeviceCopyPreparedScanResults: network records count: 0
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: WiFi infra associated, NAN DISABLED, , DFS state Off, IR INACTIVE, llwLink ACTIVE, RTM-DP 0, allowing scans
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: isScanDisallowedByAwdl[1148] : InfraScanAllowed 1 (RTModeScan 0 NonSteering 0 assistDisc 0 HTMode 0 RTModeNeeded 0 Immin 0 ScanType 1 Flags 0 ScanOn2GOnly 0 DevAllows2G 1)
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: IO80211PeerManager::setScanningState:5756:_scanningState:0x2(oldState 0) on:1, source:ScanManagerFamily, err:0
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: setScanningState:: Scan request from ScanManagerFamily. Time since last scan(1.732 s) Number of channels(0), 2.4 only(no), isDFSScan 0, airplaying 0, scanningState 0x2
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: IO80211PeerManager::setScanningState:5756:_scanningState:0x2(oldState 0) on:1, source:ScanManagerFamily, err:0
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: Controller Scan Started, scan state 0 -> 2
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: IO80211PeerManager::setScanningState:5756:_scanningState:0x0(oldState 2) on:0, source:ScanError, err:3766617154
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: setScanningState[23946]:: Scan complete for source(8)ScanError. Time(0.000 s), airplaying 0, scanningState 0x0 oldState 0x2 rtModeActive 0 (ProxSetup 0 curSchedState 3)
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: IO80211PeerManager::setScanningState:5756:_scanningState:0x0(oldState 2) on:0, source:ScanError, err:3766617154
Oct 10 10:34:10 kernel()[0] <Notice>: wlan0:com.apple.p2p: Controller Scan Done, scan state 2 -> 0
Oct 10 10:34:10 wifid(IO80211)[54] <Notice>: Apple80211IOCTLSetWrapper:6536 @[35563.366221] ifname['en0'] IOUC type 10/'APPLE80211_IOC_SCAN_REQ', len[5528] return -528350142/0xe0820442
Oct 10 10:34:10 wifid[54] <Notice>: [WiFiPolicy] {SCAN-} Completed Apple80211ScanAsync on en0 (0xe0820442) with 0 networks
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Error>: __WiFiDeviceCreateFilteredScanResults: null scanResults
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Notice>: __WiFiDeviceCreateFilteredScanResults: rssiThresh 0, doTrimming 0, scanResultsCount: 0, trimmedScanResultsCount: 0, filteredScanResultsCount: 0, nullNetworksCount: 0
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Notice>: __WiFiDeviceManagerDispatchUserForcedAssociationCallback: result 1
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Error>: __WiFiDeviceManagerForcedAssociationCallback: failed to association error 1
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Notice>: WiFiLocalizationGetLocalizedString: lang='en_GB' key='WIFI_JOIN_NETWORK_FAILURE_TITLE' value='Unable to join the network
\M-b\M^@\M^\%@\M-b\M^@\M^]'
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Notice>: WiFiLocalizationGetLocalizedString: lang='en_GB' key='WIFI_FAILURE_OK' value='OK'
Oct 10 10:34:10 wifid(WiFiPolicy)[54] <Notice>: __WiFiDeviceManagerUserForcedAssociationScanCallback: scan results were empty
It looks like there is a scan error, and I see the error: failed to association error 1.
I have also seen the iOS device find the SSID but fail to associate (associated error 2):
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Notice>: __WiFiMetricsManagerCopyLinkChangeNetworkParams: updating AccessPointInfo: {
DeviceNameElement = testssid;
ManufacturerElement = " ";
ModelName = " ";
ModelNumber = " ";
}
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Notice>: __WiFiMetricsManagerCopyLinkChangeNetworkParams: minSupportDataRate 6, maxSupportDataRate 54
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Error>: Disassociated.
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Error>: __WiFiMetricsManagerUpdateDBAndSubmitAssociationFailure: Failed to append deauthSourceOUI to CA event
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Error>: __WiFiMetricsManagerUpdateDBAndSubmitAssociationFailure: Failed to append bssidOUI to CA event
..... <log omitted>
..... <log omitted>
Oct 8 12:25:52 wifid(CoreWiFi)[54] <Notice>: [corewifi] END REQ [GET SSID] took 0.005530542s (pid=260 proc=mediaplaybackd bundleID=com.apple.mediaplaybackd codesignID=com.apple.mediaplaybackd service=com.apple.private.corewifi-xpc qos=21 intf=(null) uuid=D67EF err=-528342013 reply=(null)
Oct 8 12:25:52 SpringBoard(SpringBoard)[244] <Notice>: Presenting a CFUserNotification with reply port: 259427 on behalf of: wifid.54
Oct 8 12:25:52 SpringBoard(SpringBoard)[244] <Notice>: Received request to activate alertItem: <SBUserNotificationAlert: 0xc20a49b80; title: Unable to join the network
\M-b\M^@\M^\\134^Htestssid\134^?\M-b\M^@\M^]; source: wifid; pid: 54>
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Notice>: __WiFiDeviceManagerUserForcedAssociationCallback: failed forced association
Oct 8 12:25:52 SpringBoard(SpringBoard)[244] <Notice>: Activation - Presenting <SBUserNotificationAlert: 0xc20a49b80; title: Unable to join the network
\M-b\M^@\M^\\134^Htestssid\134^?\M-b\M^@\M^]; source: wifid; pid: 54> with presenter: <SBUnlockedAlertItemPresenter: 0xc1d9f6530>
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Notice>: __WiFiDeviceManagerDispatchUserForcedAssociationCallback: result 2
Oct 8 12:25:52 SpringBoard(SpringBoard)[244] <Notice>: Activation - Presenter:<SBUnlockedAlertItemPresenter: 0xc1d9f6530> will present presentation: <SBAlertItemPresentation: 0xc1cd40820; alertItem: <SBUserNotificationAlert: 0xc20a49b80; presented: NO>; presenter: <SBUnlockedAlertItemPresenter: 0xc1d9f6530>>
Oct 8 12:25:52 wifid(WiFiPolicy)[54] <Error>: __WiFiDeviceManagerForcedAssociationCallback: failed to association error 2
Anyone able to help with this?
UNNotificationAttachment convenience init method seems to be checking for supported file types based on the extension of the file URL provided as a constructor parameter. This seems to be sub-optimal at best and incorrect at worst.
Is this is a known issue for which a bug already exists?
On a CI infrastructure we connect nodes through SSH, and launch automated apps testing.
Since Macos Tahoe:
When launching an App through SSH with full executable binary path
App doesn't show up in apps bar and top menu
No keyboard events are received (mouse work well)
How to reproduce:
ssh <YOUR_MAC_TAHOE>
/Applications/Pages.app/Contents/MacOS/Pages
# ==> Navigate until you can enter text, no keyboard input are working
# ==> App do not show up on app bar
# ==> Work as expected if launched from a local terminal
open /Applications/Pages.app
# ==> work well
Do I miss a system configuration to restore ability to launch apps from SSH ?
Note: We use full executable binary path (not bundle path/.app folder) because our test application require this full path (Qt Squish)
Topic:
App & System Services
SubTopic:
Automation & Scripting
I'm trying to fade in the sound used in my alarm app but currently there's no way to achieve this since the alarm sound loops and if i add a fade-in at the beginning of my audio, every time the audio loops the fadein happens.
Topic:
App & System Services
SubTopic:
General
My widget has a background color set, but after the system sets custom transparency, my widget displays a blank space. I would like to solve this problem by obtaining the system's custom transparency settings and then setting the background color transparency, or do you have a better way to solve this problem
Topic:
App & System Services
SubTopic:
Widgets & Live Activities
We currently have the need to develop Smart Island. We need to identify whether the current mobile phone supports Smart Island. At present, the solution we can think of is to maintain a model list if the current phone is in the white list, it supports Smart Island. But we think this method is not good enough. Is there a better solution to support identification? In addition, will the later models support smart Island?
Topic:
App & System Services
SubTopic:
Widgets & Live Activities
Hello! We are in the progress of migrating a large Swift 5.10 legacy code base over to use Swift 6.0 with Strict Concurrency checking.
We have already stumbled across a few weird edge cases where the "guaranteed" @MainActor isolation is violated (such as with @objc #selector methods used with NotificationCenter).
However, we recently found a new scenario where our app crashes accessing main actor isolated state on a background thread, and it was surprising that the compiler couldn't warn us.
Minimal reproducible example:
class ViewController: UIViewController {
var isolatedStateString = "Some main actor isolated state"
override func viewDidLoad() {
exampleMethod()
}
/// Note: A `@MainActor` isolated method in a `@MainActor` isolated class.
func exampleMethod() {
testAsyncMethod() { [weak self] in
// !!! Crash !!!
MainActor.assertIsolated()
// This callback inherits @MainActor from the class definition, but it is called on a background thread.
// It is an error to mutate main actor isolated state off the main thread...
self?.isolatedStateString = "Let me mutate my isolated state"
}
}
func testAsyncMethod(completionHandler: (@escaping () -> Void)) {
let group = DispatchGroup()
let queue = DispatchQueue.global()
// The compiler is totally fine with calling this on a background thread.
group.notify(queue: queue) {
completionHandler()
}
// The below code at least gives us a compiler warning to add `@Sendable` to our closure argument, which is helpful.
// DispatchQueue.global().async {
// completionHandler()
// }
}
}
The problem:
In the above code, the completionHandler implementation inherits main actor isolation from the UIViewController class.
However, when we call exampleMethod(), we crash because the completionHandler is called on a background thread via the DispatchGroup.notify(queue:).
If were to instead use DispatchQueue.global().async (snippet at the bottom of the sample), the compiler helpfully warns us that completionHandler must be Sendable.
Unfortunately, DispatchGroup's notify gives us no such compiler warnings. Thus, we crash at runtime.
So my questions are:
Why can't the compiler warn us about a potential problem with DispatchGroup().notify(queue:) like it can with DispatchQueue.global().async?
How can we address this problem in a holistic way in our app, as it's a very simple mistake to make (with very bad consequences) while we migrate off GCD?
I'm sure the broader answer here is "don't mix GCD and Concurrency", but unfortunately that's a little unavoidable as we migrate our large legacy code base! 🙂
Hi, I have AppShortcutsProvider in my app target(not as a separate extension) to support Siri command. It is working perfectly in English, but I would also like to add a localisation on it as my app supports multiple languages.
struct MyShortcuts: AppShortcutsProvider {
static let shortcutTileColor: ShortcutTileColor = .grape
static var appShortcuts: [AppShortcut] {
AppShortcut(
intent: NextClassAppIntents(),
phrases: [
"What is my next class in \(.applicationName)?",
"What's the next class in \(.applicationName)?",
"Next class in \(.applicationName)."
],
shortTitle: "Next Class",
systemImageName: "calendar.badge.clock"
)
}
}
Xcode String Catalog was doing great jobs, It also detected shortTitle automatically and added that to the Catalog. However, I don't see localisation for those phrases anywhere in the String Catalog and when I try to use String(localized: ), compiler gives me an error.
How can I properly localise AppShortcutPhrase?
Topic:
App & System Services
SubTopic:
Automation & Scripting
Tags:
Shortcuts
Localization
Intents
App Intents
I researched Apple HealthKit Background Delivery documentation but I couldn't find any information about does HK background delivery stay persistent after restarting the device? Do I need to enable background delivery for each health data type on a reboot? Can you enlighten me about this topic.
Create a static widget kit based widget for watchKit. Use swiftUI and an image.
IE on 42mm you can import a 141x141 image at 2x. Import a 141x141 image in the widget and load it in swiftUI.
In watchOS 11.x simulator the image will allow up to the size for X Large circles, and on os26, it will not load and complain the image is too large and report the area for the smaller circle, IE 89x89 @ 2x for 41mm
Also submitted a "feedback" ticket FB20506200
This is a big issue b/c the size difference for X large circles v the smaller circles is really large.
To get existing images to load I am having to resize them down 75-80% on OS26 in the X Large complication.