On macOS, we have didMountNotification but there doesn't seem to be an equivalent for iOS. Is there a way to be notified when a volume is mounted on iOS? I would like to use it in my iOS app I'm currently porting from macOS, which starts a synchronization from the volume (which has been previously selected in a NSOpenPanel) as soon as it's mounted.
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.
Selecting any option will automatically load the page
Post
Replies
Boosts
Views
Activity
We use the Transaction Info API for Apple Pay verification, but due to a surge in player payment requests during major game version updates, we've encountered a large backlog of orders and are unable to process all verifications in time. We're wondering if anyone knows the process for requesting an increase in the QPS limit? QAQ
Topic:
App & System Services
SubTopic:
StoreKit
Hello Apple Developer Team,
Based on the mandate to update the APNs certificate by February 24, 2025 for certificate-based authentication, a question from the team has been brought up that maybe Apple or the community can help answer. Since our implementation uses token-based authentication, I’m seeking clarification on a couple of points:
1. Does the certificate update affect token-based connections at all?
2. What is the rationale behind updating certificates for certificate-based authentication, and are there any implications or benefits for developers using token-based authentication?
Understanding these details will help us ensure our system remains compliant and optimally configured. Any guidance or further clarification you can provide would be greatly appreciated.
Thank you!
we’re looking to get some clarification around how the hourly forecasts should be interpreted to ensure we’re using your data in the correct manner. If you could provide the answers to the following questions would be extremely helpful:
1. What do the data points (e.g temperature) in the hourly forecast represent for a future hour? Do they represent the expected average over that future hour or do they represent the forecast for the point in time at the top of the hour?
2. What do those same data points represent in the hourly forecast for an hour which has already begun? e.g. it’s 8:30 and we pull the hourly forecast and the 8:00 hour is still returned. Which of the following would be the correct interpretation for the values returned for the 8:00 hour:
The values represent the forecast for the point in time at the top of the 8:00 hour (if this is the case we would expect it to stop updating)
The values represent the current forecast i.e. what the weather is right now
The values represent the average over the remaining portion of the 8:00 hour
The values represent the average over the full 8:00 hour including both the portion which has already elapsed and the portion which is still to come
3. What does the data represent after the hour (i.e. looking at historical hours)? Is it:
The last forecast made within the hour? If so, is that point-in-time or average for the hour (as explained above)?
The actual weather for that hour (using some non-forecast measure of real weather)? If so, again is that point-in-time at top of hour / point-in-time at end of hour / average over the hour?
According to the Apple notification alert received in October 2024, the APNS server certificate update for production is scheduled for February 24, 2025.
Has this change been implemented, or is there a platform or method to verify whether this update has been applied in production?
If so, where can we check this?"
I got a notification that the Certification Authority (CA) for Apple Push Notification service (APNs) is changing. Does this affect the push service for Apple Wallet passes or just for apps? I have a push service for Apple Wallet passes but no service for apps. I don't use push notification service for anything other than for Apple Wallet Pass push notifications, not at all for apps. Is there anything I need to do or is this not relevant to my situation?
If it does, what do I need to change in order to make sure my service still works? Do I just replace the certificate? Is there a standard path where it would live on the server?
I'm sure this is a simple thing, but it's been over a decade since I wrote the push service so I'm pretty rusty.
Hi team at Apple, here is a scenario we came across:
The order of priority of payment methods in Apple Wallet follows:
Credit
Debit
Apple Cash
Our app displays a payment sheet that excludes credit cards. Instead of a debit card, the default payment option shown to the user on the payment sheet is Apple Cash.
Is this a known issue or have we configured something wrong in our end?
I want to create automations when the first person comes Home.
When Setting up the Automation on the owner device everything seems to be correct. Yet the Automation doesn‘t Wort properly. my girlfriend is listed as admin.
when she has a Look at the Automation, the Location of my phone is unknown.
the issue is that this leads To the following behaviour. When i come House the Automation Checks if my girlfriend is Home. All Good. When my Grilfriend comes Home the Automation doesn‘t Check where i am But directly execut the Automation.
Hi,
I'm working on a game for the past few years using first Unreal Engine 4, and now Unreal Engine 5.4.4.
I'm experiencingan unusual crash on startup on some devices
. The crash is so fast that I'm barely able to see the launching screen sometimes because the app closes itself before that.
I got a EXC_CRASH (SIGABRT) so I know that it's a null pointer reference, but I can't quite wrap my head about the cause, I think that's something messed up in the packaging of the app, but here is where I'm blocked, I'm not that accustomed with apple devices.
If someone has some advise to give, please, any help will be very valuable. Many thanks.
Log :
Crash Log on Ipad
I am a macOS software developer using Xcode and Objective-C. I have a wallpaper app on the App Store, and recently, a few users have asked if the app can be excluded from the ‘Screen Time’ statistics. Is there a way to allow users to choose whether or not the app should appear in the ‘Screen Time’ tracking? I have already set LSUIElement to YES in the info.plist, but the app is still being tracked in ‘Screen Time.
Hello
My app has implementation of In App Provisioning which is working fine. We have now added Wallet Extensions to it, but my App is not shown in Apple Wallet "From apps on your iphone"
I have uploaded Feedback (FB16450547) at
https://feedbackassistant.apple.com/feedback/16450547
Kindly request for your advice
Please allow me to confirm the Server Notifications V2 specification.
I am aware that if withdrawal an Apple account that has a subscription, the subscription will eventually be cancelled.
Regarding Server Notifications V2 notifications with a notificationType of EXPIRED, am I correct in thinking that they will be sent when the subscription expires even if the Apple account is withdrawal?
Hi!
I am using the HKAnchoredObjectQuery to first get a snapshot of the initial results, and then trigger an updateHandler.
I need to handle the initial results and the updates separately, which is why I implemented two completions.
When I test the code, it works for a while. New and deleted samples trigger the updateHandler. However, after a while there appears an error:
[connection] nw_read_request_report [C2] Receive failed with error "Software caused connection abort"
Followingly, the updateHandler will stop getting triggered when I add updates in Apple health. Anyone have experience with this?
func getMostRecentSample(for sampleType: HKSampleType,
anchorKey: String,
completion: @escaping (HKQuantitySample?, Error?) -> Swift.Void,
updateHandler: @escaping (HKQuantitySample, Error?) -> Swift.Void) {
// If it is the first initialization, anchor is passed as nil
var anchor: HKQueryAnchor? = nil
// Check for previous saved anchor in userdefaults
if UserDefaults.standard.object(forKey: anchorKey) != nil {
let data = UserDefaults.standard.object(forKey: anchorKey) as! Data
do {
guard let newAnchor = try NSKeyedUnarchiver.unarchivedObject(ofClass: HKQueryAnchor.self, from: data) else {
print("Could not parse anchor to HKQueryAnchor type")
return
}
anchor = newAnchor
} catch {
print("Error retreiving anchor from UserDefaults")
}
}
let query = HKAnchoredObjectQuery(type: sampleType,
predicate: nil,
anchor: anchor,
limit: HKObjectQueryNoLimit
) { (query, samplesOrNil, _, newAnchor, errorOrNil) in
guard let samples = samplesOrNil as? [HKQuantitySample] else {
fatalError("*** An error occurred during the initial query: \(errorOrNil!.localizedDescription) ***")
}
if let anchor = newAnchor {
do {
let data = try NSKeyedArchiver.archivedData(withRootObject: anchor as Any, requiringSecureCoding: false)
UserDefaults.standard.set(data, forKey: anchorKey)
} catch {
print("Error retreiving anchor from UserDefaults")
}
}
completion(samples.last, nil)
}
// Setting up long-running query
query.updateHandler = { (query, samplesOrNil, _, newAnchor, errorOrNil) in
guard let samples = samplesOrNil as? [HKQuantitySample] else {
fatalError("*** An error occurred during an update: \(errorOrNil!.localizedDescription) ***")
}
if let anchor = newAnchor {
do {
let data = try NSKeyedArchiver.archivedData(withRootObject: anchor as Any, requiringSecureCoding: false)
UserDefaults.standard.set(data, forKey: anchorKey)
} catch {
print("Error retreiving anchor from UserDefaults")
}
}
if let sample = samples.last {
updateHandler(sample, nil)
}
}
self.healthStore.execute(query)
}
Hello Apple Developer Community,
I am developing a medical app that is classified as Class B according to FDA regulations. The app connects to a medical device using Bluetooth Low Energy (BLE) to collect critical medical data such as ECG readings. To ensure accurate data collection and maintain the quality of the medical readings, the app needs to wake up every five minutes in the background and perform tasks for approximately 30 seconds.
I understand that iOS has strict limitations on background execution to preserve battery and system performance. However, due to the medical nature of the app and the need for periodic data collection, I am seeking guidance on the following:
If I can provide documentation that the app is associated with an FDA-approved Class B medical device, would Apple allow more lenient background task execution policies?
Are there specific APIs, such as BackgroundTasks, CoreBluetooth, or other recommended strategies, that could help me achieve this behavior reliably?
Is there a process to apply for an exception or special consideration for medical apps that require periodic background activity?
Any insights or recommendations would be greatly appreciated. Thank you!
I have been trying to investigate some of the kernel crashes I have noticed on my IOS crash logs. Some of these are in device driver software for the peripheral interfaces.
Given that the driver code executes with kernel privileges, these kind of crashes leave the device vulnerable to remote code injection, with no user interaction required in some cases.
Crash Report from IOS 18.2.1
If Apple can provide the symbol table for IOS 18.2.1 blue tooth driver and source code, I can gladly help investigate this further.
I have an issue that causes multiple instances of the push provider to be initialized. And I'd like to ask you what could trigger the instantiation NEAppPushProvider subclass. It seems like it's being triggered excessively. If there's documentation that I have overlooked then just show it to me and I'll be on my way.
Here's the details. But really all I want to know is why is my subclass for NEAppPushProvider keeps getting initialized. If you can answer me that than maybe all these details don't really matter but here they are.
Here's why I believe there's multiple push provider. I see logs for my push provider initializing but I don't see it de-initializing. I also see redundant logs showing multiple instances trying to log into my server. Each time it initializes, an additional log is added for trying to log into my server.
In the app, the system saves it's configuration shortly after initialization, after saving and loading the push configuration, the app doesn't touch config.
Meanwhile in the extension, after 8 or so hours, the extension starts creating a new instance of the push provider. Then a few hours later it does it again. And again. Until the watch dog kills us for wasting too much CPU.
Normally on a fresh install, I'll observe turning off the wifi to call stop on the push provider and later have the push provider de-initialize.
The extension maintains a socket connection to the server, the server can send it messages to display push notifications. The software runs on hospital networks, which will not have access to the internet. It seems like the connection to the server is stable from the logs. I don't detect any disconnections. I'll check with the server to confirm.
In the app I call removeFromPreferences to clear out any extensions before logging in/saving push configurations. And I call saveToPreferences on the NEAppPushManager. I do this to make sure I don't have more than one push configuration saved at one time. I also have many logs looking out for this. I used the sample code from apple as the basis of the my own Push Manager. I can post code if you deem it necessary.
Hope to here from you soon. Thank you.
Got notification to update this certificate - there was a link to Sectigo.com where I found an attachment with that name - when I clicked it I got a box where it said to install it. Clicked the box and it was saved somewhere on my computer.
Now I dont know if that's it or I need to take further actions - please help :-)
Have no experience with this - my collegue who did this has stopped.
Hoping for a simple answer :-)
P
Hello,
I'm creating an app that stores multiple Date objects: the users selects a date and a time and receives a notification at this time precisely.
The problem that happens is after saving a Date, if the device's timezone changes, the Date also changes - and that is not what's I'm expecting (just want the original time as is without depending on timezone).
I have inspected the TimeZone properties when I'm building the Date from DateComponents but nothing has worked.
Thank you for your answer.
Hello,
I have been implementing NEAppPushProvider class to establish my own protocol to directly communicate with our provider server without the need to rely on APNs for background push notifications.
I am at a stage where I am able to establish a tcp communicator and receive messages back and forth but I noticed that when I disconnect from the WIFI I've set up by setting a given SSID, I am not getting hit on the Stop method. Below is briefly how I load and save preferences.
NEAppPushManager appPushManager = new NEAppPushManager();
appPushManager.LoadFromPreferences((error) =>
{
if (error != null)
{
Console.WriteLine($"Error loading NEAppPushManager preferences: {error.LocalizedDescription}");
return;
}
if (!enable)
{
Console.WriteLine("Disabling Local Push Provider...");
appPushManager.Enabled = false;
// ✅ Immediately update UserDefaults before saving preferences
userDefaults.SetBool(false, Constants.IsLocalPushEnabled);
userDefaults.Synchronize();
appPushManager.SaveToPreferences((saveError) =>
{
if (saveError != null)
{
Console.WriteLine($"Error disabling Local Push: {saveError.LocalizedDescription}");
}
else
{
Console.WriteLine("Local Push successfully disabled.");
}
});
return;
}
// ✅ Now we can safely enable Local Push
Console.WriteLine($"Enabling Local Push for SSID: {_currentSSID}");
appPushManager.MatchSsids = new string[] { _currentSSID };
appPushManager.LocalizedDescription = "LocalPushProvider";
appPushManager.ProviderBundleIdentifier = Constants.LocalPushExtensionBundleId;
appPushManager.Enabled = true;
appPushManager.SaveToPreferences((saveError) =>
{
if (saveError != null)
{
Console.WriteLine($"Error saving Local Push settings: {saveError.LocalizedDescription}");
}
else
{
Console.WriteLine("✅ Local Push successfully registered.");
userDefaults.SetBool(true, Constants.IsLocalPushEnabled);
userDefaults.Synchronize();
}
});
});
I've read through documentation and was expecting the Stop method to be hit when I turn off Wifi. Am I missing anything? Please let me know if I should provide more info. Currently I just have a console writeline method inside the Stop method to see if it actually gets hit.
on a span of 4 months we sent 2 for nfc entitlement requests and refused , no reason nothing . i mean all we want is the ability to use nfc on passes nothing else , no idea why this is so complex . with google you don’t even need a developer account and it’s for free , here we pay and we can’t even get the full functionality the passes offer , we got the hardware and the solution but we find out we need an nfc entitlement to allow passes to have nfc ? i mean our use case is very simple instead of having barcode on the passes we want them to be via nfc and we already got the nfc hardware but we find out we need nfc entitlement which we tried requesting but getting refused with no reason at all. at least tell u what is the problem what how to fix it not outright refuse without any reason at all. if anyone got any solution please provide.