Document based SwiftData apps do not autosave changes to the ModelContext at all. This issue has been around since the first release of this SwiftData feature.
In fact, the Apple WWDC sample project (https://developer.apple.com/documentation/swiftui/building-a-document-based-app-using-swiftdata) does not persist any data in its current state, unless one inserts modelContext.save() calls after every data change.
I have reported this under the feedback ID FB16503154, as it seemed to me that there is no feedback report about the fundamental issue yet.
Other posts related to this problem:
https://forums.developer.apple.com/forums/thread/757172
https://forums.developer.apple.com/forums/thread/768906
https://developer.apple.com/forums/thread/764189
Delve into the world of built-in app and system services available to developers. Discuss leveraging these services to enhance your app's functionality and user experience.
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I get crash reports which I can't reproduce when trying to present an SKStoreProductViewController :
Fatal Exception: UIApplicationInvalidInterfaceOrientation
Supported orientations has no common orientation with the application, and [SKStoreProductViewController shouldAutorotate] is returning YES
No matter what app Deployment info orientation I try I can't get my SKStoreProductViewController shouldAutorotate property to return YES. It is always false.
Does anyone knows why or how to get an SKStoreProductViewController to return shouldAutorotate YES?
Topic:
App & System Services
SubTopic:
StoreKit
Our product is using IOKit framework for monitoring USB device activities. We have used IOKit framework for getting the notification for USB plugin and un-plugins. With the macOS version 15.3 we are started seeing issue with it. When the notification is received during USB plugin/connection, we are unable to get IOUSBDeviceInterface object which will be used for further processing.
Currently we are seeing the below error every time, while trying to create the IO plugin interface using IOCreatePlugInInterfaceForService API:
create plugin Error: (0xe00002be): (iokit/common) resource shortage
Due to this the we are unable to proceed with the flow further and the entire flow is broken.
These logics work fine in macOS version 15.2 and lower versions without any issues.
logic used:
USBDevice::initInterfaceInterfaceByIOService(io_service_t entry)
{
IOCFPlugInInterface** plugInInterface = NULL;
IOUSBInterfaceInterface** interface = NULL;
SInt32 score = 0;
mach_error_code err =
IOCreatePlugInInterfaceForService(entry, kIOUSBInterfaceUserClientTypeID, kIOCFPlugInInterfaceID, &plugInInterface, &score);
if ((err != 0) || (!plugInInterface)) {
os_log_error(OS_LOG_DEFAULT, "Unable to create plugin \n");
return nullptr;
}
auto result = (*plugInInterface)->QueryInterface(plugInInterface, CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID), (LPVOID*)&interface);
(*plugInInterface)->Release(plugInInterface);
if (result || !interface) {
os_log_error(OS_LOG_DEFAULT, "Unable to create interface \n");
return nullptr;
}
return interface;
}
Hi,
We’re developing a BLE peripheral device and encountered a connection issue when connecting two devices (Device A and Device B) simultaneously to an iOS device.
Problem:
On iOS 18, we are experiencing occasional BLE timeouts and disconnections when both devices are connected at the same time.
On iOS 16, we did not encounter this issue under the same conditions.
What we’ve tried:
Adjusted the connection interval from 30ms to 15ms.
This seems to have improved stability somewhat.
However, we still observe intermittent timeout/disconnection issues.
Questions:
Are there any known changes in BLE connection handling or timing constraints in iOS 18?
Are there recommended connection parameter settings (interval, latency, timeout, etc.) for multi-device BLE connections in iOS?
Is there a way to debug or log more details about the disconnection reasons on the iOS side?
Any guidance or suggestions would be greatly appreciated.
Hi,
I’m trying to get an array of strings from the user using AppIntents, but I’m encountering an issue. The shortcut ends without prompting the user for input or saving the value, though it doesn’t crash. I need to get the user to input multiple tasks in an array, but the current approach isn’t working as expected.
Here’s the current method I’m using:
// Short code snippet showing the current method
private func collectTasks() async throws -> [String] {
var collectedTasks: [String] = tasks ?? []
while true {
if !collectedTasks.isEmpty {
let addMore = try await $input.requestConfirmation("Would you like to add another task?")
if !addMore {
break
}
}
let newTask = try await $input.requestValue("Please enter a task:")
collectedTasks.append(newTask)
}
return collectedTasks
}
The Call
func perform() async throws -> some IntentResult {
let finalTasks = try await collectTasks()
// Some more Code
}
Any advice or suggestions would be appreciated. Thanks in advance!
We sell magazines through a third party app platform called Pocketmags and our website. The magazines have Print, Digital and Combo options available for purchase. Also, this third party app provides the platform to read the digital version of the magazines.
Once a user buys a subscription on the website, he/she receives the email with the login information on PocketMags, where he registers his login details and can start reading his subscription. With us, the customer shares his billing/shipping address along with their email id while they make payment.
Now we have our own app where through which we want to sell these magazines and have to integrate In-App purchase for selling these digital subscriptions. How do we send the 3rd party subscription access details on email to the user if they do in app purchase?
Is there a way to detect an incoming call with a React Native app? I have a fitness app and would like to pause the workout during the phone call.
I'm currently integrating Apple Pay with my payment provider, and I'm encountering a signature validation error during the payment flow.
Here's the setup:
I’ve verified that my Merchant Certificate is valid, and I'm able to initialize the Apple Pay session without any issues. Also this curl works fine
The Payment Processing Certificate was created by my PSP.
PSP claims that the payment token signature is invalid during the transaction phase, which prevents payment completion.
The parsed signature starts like this
0:d=0 hl=2 l=inf cons: SEQUENCE
2:d=1 hl=2 l= 9 prim: OBJECT :pkcs7-signedData
13:d=1 hl=2 l=inf cons: cont [ 0 ]
15:d=2 hl=2 l=inf cons: SEQUENCE
17:d=3 hl=2 l= 1 prim: INTEGER :01
20:d=3 hl=2 l= 13 cons: SET
22:d=4 hl=2 l= 11 cons: SEQUENCE
24:d=5 hl=2 l= 9 prim: OBJECT :sha256
35:d=3 hl=2 l=inf cons: SEQUENCE
37:d=4 hl=2 l= 9 prim: OBJECT :pkcs7-data
48:d=4 hl=2 l= 0 prim: EOC
50:d=3 hl=2 l=inf cons: cont [ 0 ]
52:d=4 hl=4 l= 995 cons: SEQUENCE
56:d=5 hl=4 l= 904 cons: SEQUENCE
60:d=6 hl=2 l= 3 cons: cont [ 0 ]
62:d=7 hl=2 l= 1 prim: INTEGER :02
65:d=6 hl=2 l= 8 prim: INTEGER :16634C8B0E305717
75:d=6 hl=2 l= 10 cons: SEQUENCE
77:d=7 hl=2 l= 8 prim: OBJECT :ecdsa-with-SHA256
87:d=6 hl=2 l= 122 cons: SEQUENCE
89:d=7 hl=2 l= 46 cons: SET
91:d=8 hl=2 l= 44 cons: SEQUENCE
93:d=9 hl=2 l= 3 prim: OBJECT :commonName
98:d=9 hl=2 l= 37 prim: UTF8STRING :Apple Application Integration CA - G3
I'm looking for guidance on what could be causing this signature failure.
Does anyone know what else I can check regarding the merchant or payment processing certificates, private keys, or key usage that might cause Apple Pay signature validation to fail, even if the session initializes successfully? Domains are also verified.
Any help or suggestions would be greatly appreciated.
Hello,
I am writing this because the behavior of the App Store Server Notification that our server receives is problematic in the Sandbox environment.
I have two questions in total.
When purchasing a Free Trial subscription, after receiving the SUBSCRIBED / INITAL_BUY Notification, DID_RENEW should be sent when it expires, but DID_FAIL_TO_RENEW/GRACE_PERIOD is sent.
The EXPIRE Notification is sent after the subscription expires or DID_CHANGE_RENEWAL_STATUS/AUTO_RENEW_DISABLED is sent, but it does not arrive.
The first problem is that I recently heard that automatic payments after a free trial require the user's consent via email. Is this the reason?
If so, I am curious about how I can test it in the Sandbox environment.
Is the second problem a bug?
Topic:
App & System Services
SubTopic:
Notifications
Tags:
Subscriptions
In-App Purchase
App Store Server Notifications
I am building a widget with configurable options (dynamic option) where the options are pull from api (ultimately the options are return from a server, but during my development, the response is constructed on the fly from locally).
Right now, I am able to display the widget and able to pull out the widget configuration screen where I can choose my config option . I am constantly having an issue where the loading the available options when selected a particular option (e.g. Category) and display them on the UI. Sometime, when I tap on the option "Category" and the loading indicator keeps spinning for while before it can populate the list of topics (return from methods in NewsCategoryQuery struct via fetchCategoriesFromAPI ). Notice that I already made my fetchCategoriesFromAPI call to return the result on the fly and however the widget configuration UI stills take a very long time to display the result. Even worst, the loading (loading indicator keep spinning) sometime will just kill itself after a while and my guess there are some time threshold where the widget extension or app intent is allow to run, not sure on this?
My questions:
How can I improve the loading time to populate the dynamic options in widget configuration via App Intent
Here is my sample code for my current setup
struct NewsFeedConfigurationIntent: AppIntent, WidgetConfigurationIntent {
static let title: LocalizedStringResource = "Configure News Topic Options"
static let description = IntentDescription("Select a topic for your news.")
@Parameter(title: "Category", default: nil)
var category: NewsCategory?
}
struct NewsCategory: AppEntity, Identifiable {
let id: String
let code: String
let name: String
static let typeDisplayRepresentation: TypeDisplayRepresentation = "News Topic"
static let defaultQuery = NewsCategoryQuery()
var displayRepresentation: DisplayRepresentation {
DisplayRepresentation(title: LocalizedStringResource(stringLiteral: name))
}
}
struct NewsCategoryQuery: EntityQuery {
func entities(for identifiers: [NewsCategory.ID]) async throws -> [NewsCategory] {
let categories = fetchCategoriesFromAPI()
return categories.filter { identifiers.contains($0.id) }
}
func suggestedEntities() async throws -> [NewsCategory] {
fetchCategoriesFromAPI()
}
}
func fetchCategoriesFromAPI() -> [NewsCategory] {
let list = [
"TopicA",
"TopicB",
"TopicC",
.......
]
return list.map { item in
NewsCategory(id: item, code: item, name: item.capitalized)
}
}
Topic:
App & System Services
SubTopic:
Widgets & Live Activities
Tags:
WidgetKit
Intents
App Intents
If you are experiencing an unexpected or inconsistent behavior when using the App Store Server Library, review the following resources to ensure that your implementation workflow didn’t cause the issue:
Simplifying your implementation by using the App Store Server Library
Explore App Store server APIs for In-App Purchase
Meet the App Store Server Library
If you are unable to resolve your issue using the above resources, file a GitHub issue. Alternatively, if you wish to provide specific requests, transactions, or other private information for review, submit a Feedback Assistant report with the following information:
The bundleId or appAppleId of your app
The date and time your issue occurred
The library language(s)
The version of the library
The environment (i.e., Production, Sandbox, or Xcode)
The GitHub issue for this report if available
The endpoint(s) reproducing your issue
The HTTP body and headers of the endpoint raw request
The HTTP body and headers of the endpoint response
To submit the report, perform these steps:
Log into Feedback Assistant.
Click on the Compose icon to create a new report.
Select the Developer Tools & Resources topic.
In the sheet that appears:
Enter a title for your report.
Select “App Store Server Library” from the “Which area are you seeing an issue with?” pop-up menu.
Select “Incorrect/Unexpected Behavior” from the “What type of feedback are you reporting?” pop-up menu.
Enter a description of your issue and how to reproduce it.
Add the information gathered above to the sheet.
Submit your report.
After filing your report, please respond in your existing Developer Forums post with the Feedback Assistant ID. Use your Feedback Assistant ID to check for updates or resolutions. For more information, see Understanding feedback status.
Team,
We are currently checking out on Apple Pay using ALL and MRU as currencies. We have authorized the payment via Touch ID; however, we are not receiving the onPaymentAuthorized event.
Could you please confirm if Apple Pay supports ALL and MRU currencies? We have confirmed that it works with other currencies.
Thank you!
Topic:
App & System Services
SubTopic:
Apple Pay
Howdy,
I'm trying to figure out how to replicate the following behavior for our app:
The system is able to ascertain that the Mac equivalent of some iOS app is installed locally, and it prevents notifications from being mirrored. However, I am unable to determine how this association is inferred. When I check our iOS app under this prefpane, the switch remains enabled and toggleable—we'd like to act like Slack here.
My initial assumption is that an app group containing both the Mac and iOS apps can be used to create the association; however, I would like to confirm that this is indeed the case before doing so. I'm not terribly confident about this.
Details:
The bundle identifiers of both apps do not match. This also applies to Slack; its iOS app is com.tinyspeck.chatlyio while its Mac app is com.tinyspeck.slackmacgap.
In our case, the iOS app's identifier is like com.company.app while the Mac app's identifier is com.company.app.desktop.
Both apps are signed with certificates that have matching team identifiers. The com.apple.developer.team-identifier entitlement is present on the Mac app.
The Mac app shares a keychain access group with the iOS app.
The Mac app is not sandboxed.
The Mac app is an Electron app.
The Mac app does not use APNs. It sends notifications "locally".
I currently only have the iOS app installed on my iPhone via TestFlight, if that matters.
Notification mirroring does work, but we'd like to forcibly disable this by associating the apps together.
To my knowledge, the iOS app makes use of both a UNNotificationServiceExtension and a UNNotificationContentExtension.
The iOS app currently doesn't have an assigned category (at least in Xcode). The Mac app is currently miscategorized as a developer tool (LSApplicationCategoryType = "public.app-category.developer-tools";), but that should be fixed.
(Redacted) bundle information for the Mac app:
CFBundleDisplayName = App;
CFBundleExecutable = "App Desktop";
CFBundleName = App;
Note that our CFBundleExecutable differs from the bundle's display name/name because we're currently migrating our users to a new version of the app that they'd likely want to live alongside the new one. The filename of the bundle itself is, similarly, App Desktop.app.
For the iOS app, to my knowledge, the CFBundleName and CFBundleDisplayName are App.
Hi,
We are using Firebase to configure APNs (Apple Push Notification Service) for sending push notifications. During local testing, the push notifications are received properly when the app is in the foreground or background. After TestFlight testing and passing review, we found that when the app is installed using the developer's Apple ID, push notifications are received correctly whether the app is in the foreground or background.
However, when the app is provided to other testers (using non-developer Apple IDs), notifications are only received when the app is in the foreground, and they are not triggered when the app is in the background or inactive state.
Request for Assistance:
Why, after TestFlight testing and passing review, does the app receive push notifications properly in the background when installed using the developer's Apple ID, but on other testers' devices, notifications are not received when the app is in the background?
Are there any differences in Apple ID types or device configurations (developer ID vs. regular tester ID) that could affect the behavior of push notifications in the background mode?
Do we need to apply any additional settings or permissions, particularly for handling background push notifications?
Are there any iOS version or device-specific limitations that could impact the proper delivery of background push notifications?
Additional Information:
The app is properly configured for APNs, and push notifications are being sent via Firebase.
In the developer's Apple ID test environment, the app receives push notifications properly whether it is in the foreground or background.
On other testers' devices, push notifications are only received when the app is in the foreground, and they are not received when the app is in the background.
All test devices have been verified to have notification permissions enabled, and Firebase configuration is correct.
I'm developing an iPad app and encountered a strange issue with external Bluetooth keyboards.
Issue:
I have a Bluetooth keyboard set to JIS layout in Settings > General > Keyboard > Hardware Keyboard > Keyboard Type.
If I connect the keyboard before launching the app, everything works fine, and the input follows the JIS layout.
However, if I launch the app first and then turn on the Bluetooth keyboard, the input behaves as if the keyboard is in ANSI layout, even though the settings still show JIS.
It seems like iPadOS defaults to ANSI if no external keyboard is connected when the app starts, and later connections do not update the layout properly.
Has anyone encountered a similar issue, and is there a programmatic way to ensure that the correct keyboard layout is applied after the keyboard is connected?
Any help or insights would be greatly appreciated!
Topic:
App & System Services
SubTopic:
Hardware
We're experiencing an issue with in-app purchases in our React Native iOS app where RNIap.getProducts() is consistently returning an empty array, preventing users from making purchases.
Technical Details:
Using react-native-iap library
Product ID: '[REDACTED]'
Platform: iOS
Product Type: Consumable (one-time payment, NOT subscription)
Error in logs: "No products returned from App Store. Check App Store Connect."
Debugging shows: Products Fetched: []
Steps to Reproduce:
Open app and navigate to the quiz feature
Attempt to purchase additional quiz attempts
Modal opens but fails to load product information
What We've Confirmed:
IAP Connection initializes successfully
No error is thrown during product fetch, just an empty array returned
App is configured with correct Bundle ID
Using Apple Sandbox test account
We are implementing consumable purchases (one-time payments)
Potential Issues to Investigate:
Product configuration in App Store Connect
Ensure product is set as "Consumable" type in App Store Connect
Sandbox tester account permissions/activation
Bundle ID matching between app and App Store Connect
Product ID case sensitivity or typos
I have an app that works by being able to map IAP transactions to a predefined user ID. This means when I consume events from Apple's App Store Server Notifications endpoints I have to do a reverse lookup in order to assign permissions within my app.
Workflow:
User purchases subscription within the app via IAP. The app persists the subscriptionID from the Apple IAP library in my cloud database (Firestore).
Cloud function receives the event from App Store Server Notifications endpoint and looks up the user ID containing the persisted transactionID (with retries to avoid race condition).
Question:
This workflow works but it seems an improvement would be to allow dev's to append metadata, like the user ID, to the transaction submitted to IAP that we can access within the signedTransactionInfo of the event from the App Store Server Notifications endpoint in order to facilitate a direct lookup of the user document needing it's permissions updated. This would greatly simplify workflows that use non-Apple systems as a source of truth for app permissions. Does this actually exist already? If not, is there a feature request platform?
Topic:
App & System Services
SubTopic:
StoreKit
I noticed a very weird behavior for refunds. When a user refunds an up-front paid app, they still have access to the app. How can I detect such a case and block access to the app?
In general, I think it should be handled by Apple, but for some reason, they don't do it.
For important background information, read Extra-ordinary Networking before reading this.
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
On Host Names
I commonly see questions like How do I get the device’s host name? This question doesn’t make sense without more context. Apple systems have a variety of things that you might consider to be the host name:
The user-assigned device name — This is a user-visible value, for example, Guy Smiley. People set this in Settings > General > About > Name.
The local host name — This is a DNS name used by Bonjour, for example, guy-smiley.local. By default this is algorithmically derived from the user-assigned device name. On macOS, people can override this in Settings > General > Sharing > Local hostname.
The reverse DNS name associated with the various IP addresses assigned to the device’s various network interfaces
That last one is pretty much useless. You can’t get a single host name because there isn’t a single IP address. For more on that, see Don’t Try to Get the Device’s IP Address.
The other two have well-defined answers, although those answers vary by platform. I’ll talk more about that below.
Before getting to that, however, let’s look at the big picture.
Big Picture
The use cases for the user-assigned device name are pretty clear. I rarely see folks confused about that.
Another use case for this stuff is that you’ve started a server and you want to tell the user how to connect to it. I discuss this in detail in Showing Connection Information in an iOS Server.
However, most folks who run into problems like this do so because they’re suffering from one of the following misconceptions:
The device has a DNS name.
Its DNS name is unique.
Its DNS name doesn’t change.
Its DNS name is in some way useful for networking.
Some of these may be true in some specific circumstances, but none of them are true in all circumstances.
These issues are not unique to Apple platforms — if you look at the Posix spec for gethostname, it says nothing about DNS! — but folks tend to notice these problems more on Apple platforms because Apple devices are often deployed to highly dynamic network environments.
So, before you start using the APIs discussed in this post, think carefully about your assumptions.
And if you actually do want to work with DNS, there are two cases to consider:
If you’re looking for the local host name, use the APIs discussed above.
In other cases, it’s likely that the APIs in this post will not be helpful and you’d be better off focusing on DNS APIs [1].
[1] The API I recommend for this is DNS-SD. See the DNS section in TN3151 Choosing the right networking API.
macOS
To get the user-assigned device name, call the SCDynamicStoreCopyComputerName(_:_:) function. For example:
let userAssignedDeviceName = SCDynamicStoreCopyComputerName(nil, nil) as String?
To get the local host name, call the SCDynamicStoreCopyLocalHostName(_:) function. For example:
let localHostName = SCDynamicStoreCopyLocalHostName(nil) as String?
IMPORTANT This returns just the name label. To form a local host name, append .local..
Both routines return an optional result; code defensively!
If you’re displaying these values to the user, use the System Configuration framework dynamic store notification mechanism to keep your UI up to date.
iOS and Friends
On iOS, iPadOS, tvOS, and visionOS, get the user-assigned device name from the name property on UIDevice.
IMPORTANT Access to this is now restricted. For more on that, see the documentation for the com.apple.developer.device-information.user-assigned-device-name entitlement.
There is no direct mechanism to get the local host name.
Other APIs
There are a wide variety of other APIs that purport to return the host name. These include:
gethostname
The name property on NSHost [1]
The hostName property on NSProcessInfo (ProcessInfo in Swift)
These are problematic for a number of reasons:
They have a complex implementation that makes it hard to predict what value you’ll get back.
They might end up trying to infer the host name from the network environment.
The existing behaviour is hard to change due to compatibility concerns.
Some of them are marked as to-be-deprecated.
IMPORTANT The second issue is particularly problematic, because it involves synchronous DNS requests [2]. That’s slow in general. Worse yet, if the network environment is restricted in some way, these calls can be very slow, taking about 30 seconds to time out.
Given these problems, it’s generally best to avoid calling these routines at all.
[1] It also has a names property, which is a little closer to reality but still not particularly useful.
[2] Actually, that’s not true for gethostname. Rather, that call just returns whatever was last set by sethostname. This is always fast. The System Configuration framework infrastructure calls sethostname to update the host name as the system state changes.
Hi Guys,
I am having an issue verifying a card when it is pending verification in the Apple Watch Wallet App and the iPhone Wallet.
When the user verifies the card in the wallets, they are redirected to verification in my APP. However, the problem is that I don't know which application is calling, whether it is the Apple Watch or the iPhone, because the URL sends me the same serialNumber from the PKPASS. It is impossible to know if the user wants to verify and activate the card on the watch or the iPhone.
Because I only receive the following information in the URL:
myapp://app-url?
passTypeldentifier=paymentpass.com.apple&action =verify&serialNumber=*****
The serialNumber is the same from the iPhone Wallet and the Watch Wallet.
func application(_ app: UIApplication, open url: URL, options:
[UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool
{
let source = options[.sourceApplication]
I try to retrieve the source, but it comes back null. It would be the only way to know the originating App.
Can someone help me solve this problem?
Topic:
App & System Services
SubTopic:
Apple Pay