Hey there my application allows users to have video calls with each other using Agora. I have successfully set up incoming call functionality on Android but on iOS I am struggling to get the call ui to appear when the app is not running/in background/locked.
To my knowledge this is because there is much stricter security on iOS which is limiting me from calling this. When i initially set it up it worked at first when the app was in the background but I think I was failing to report the call to call kit in time and now it's not working.
I'm not sure if I need access to this entitlement:
com.apple.developer.pushkit.unrestricted-voip
Which i believe is only for the big boys or if I make sure I'm reporting the call to call kit fast enough that I won't encounter this issue and it will consistently work in the background.
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 am trying to track a user's real-time sleep state using heart rate data, but I have encountered several issues:
When using HKSampleQuery on the phone to fetch heart rate data, I can only retrieve data recorded before the app comes to the foreground or before it is terminated and restarted (see related issue: https://developer.apple.com/forums/thread/774953).
I attempted to get data on the Apple Watch and send updates to the phone via Watch Connectivity. However, if I use WKExtendedRuntimeSession, although I can obtain data on the watch, once the watch screen goes off, it can no longer transmit data via Watch Connectivity to the phone (since I cannot guarantee the app will remain in the foreground when lying in bed).
On the other hand, using HKWorkoutSession results in interference with the activity rings and causes the heart rate sensor to run too frequently, which I worry may affect the battery life of the watch.
Is there an elegant solution for tracking a user's heart rate data for sleep monitoring?
Hello Everyone,
I somehow missed to renew the APNS Certificate,
I am new to Apple Ecosystem, I can not see the expired or any Certificates under
Certificates, Identifiers & Profiles
Can anyone help me with this!
Hello,
I’m developing an iOS app that works with sleep data from Apple Watch via HealthKit. I would like to clarify the following:
How can an iPhone app detect when a sleep session ends on the Apple Watch?
When is sleep data typically written to the HealthKit store on iPhone after sleep ends? Is it immediately after wake-up, or does it depend on certain conditions (e.g., watch charging, connectivity)?
Understanding the timing and mechanism of sleep data synchronization is crucial for our app to process accurate and timely health information.
Thank you for your assistance.
I'm developing a widget with WidgetKit, and I'm having a problem: I need to click on an image, and when I click it triggers a network request, the image automatically rotates clockwise, and when the network ends, the image automatically stops rotating. How to do that?
My current idea is to click on the image and await the call to the network request. Should Toggle be used for the control corresponding to the picture? Because Toggle has two states. Then there is how to do image rotation, did not find support API.
I am checking if the user taps on the firebase push notification and get the payload.
override func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
let userInfo = response.notification.request.content.userInfo
os_log("notification tapped %{public}@", log: OSLog.push, type: .info, userInfo)
handleNotificationPayload(userInfo as! [String: AnyObject])
setFlutterLinkClickedVariable()
}
My use case is in app terminated state when push notification is tapped, get the link from payload and navigate to corresponding screen based on the link. This is working when there is only one push notification. When there are multiple push notifications with different links in the payload, only the first notification I tap works. Rest of the notifications just launches the app and does not navigate because the link is not set.
I am getting the link from the payload and invoking flutter code which sets the link in the user defaults (shared preferences) and when the app launches in the home screen it checks for this variable and navigates accordingly.
func handleNotificationPayload(_ payload: [String: AnyObject]) {
if let link = payload["link"] as? String {
setFlutterLinkVariable(link)
}
}
override func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
os_log("app did receive remote notification %{public}@", log: OSLog.push, type: .info, userInfo)
handleNotificationPayload(userInfo as! [String : AnyObject])
completionHandler(.newData)
}
Currently when there is only one push notification it works because the link is set from the above method. The click delegate is not calling. I did set the delegate in application(:didFinishLaunchingWithOptions).
UNUserNotificationCenter.current().delegate = self
application.registerForRemoteNotifications()
How to solve this issue? Thanks.
In my App I want to create a new directory structure in a user selected base directory. In the entitlements com.apple.security.files.user-selected.read-write = true is defined. I call URL.startAccessingSecurityScopedResource( ) and get a true value back. When calling FileManager.createDirectory( at: directoryURL, withIntermediateDirectories: true, attributes: nil ) an error is thrown that write access is missing. User has write permissions in that directory.
When the user selects a directory I store a bookmark via an @AppStorage variable. After write attempt URL.stopAccessingSecurityScopedResource() is called.
I have also implemented a SharedExtension (especially for the Photo app). When user calls the SharedExtension of my app and the app just uses the bookmark stored with @AppStorage and follows the same process as described above no difficulties appear and directories are created as expected.
Changing back to the main app, using again the untouched bookmark and execute the exactly same code as in the first attempt everything works fine and as expected.
The phenomenon appears on real devices but not on simulator.
Any ideas how to solve the issue of having no write access in first attempt?
Hi there, I got two models here:
Two Models, with Many-To-Many Relationship
@Model
final class PresetParams: Identifiable {
@Attribute(.unique) var id: UUID = UUID()
var positionX: Float = 0.0
var positionY: Float = 0.0
var positionZ: Float = 0.0
var volume: Float = 1.0
@Relationship(deleteRule: .nullify, inverse: \Preset.presetAudioParams)
var preset = [Preset]()
init(position: SIMD3<Float>, volume: Float) {
self.positionX = position.x
self.positionY = position.y
self.positionZ = position.z
self.volume = volume
self.preset = []
}
var position: SIMD3<Float> {
get {
return SIMD3<Float>(x: positionX, y: positionY, z: positionZ)
}
set {
positionX = newValue.x
positionY = newValue.y
positionZ = newValue.z
}
}
}
@Model
final class Preset: Identifiable {
@Attribute(.unique) var id: UUID = UUID()
var presetName: String
var presetDesc: String?
var presetAudioParams = [PresetParams]() // Many-To-Many Relationship.
init(presetName: String, presetDesc: String? = nil) {
self.presetName = presetName
self.presetDesc = presetDesc
self.presetAudioParams = []
}
}
To be honest, I don't fully understand how the @Relationship thing works properly in a Many-To-Many relationship situation. Some tutorials suggest that it's required on the "One" side of an One-To-Many Relationship, while the "Many" side doesn't need it.
And then there is an ObservableObject called "ModelActors" to manage all ModelActors, ModelContainer, etc.
ModelActors, ModelContainer...
class ModelActors: ObservableObject {
static let shared: ModelActors = ModelActors()
let sharedModelContainer: ModelContainer
private init() {
var schema = Schema([
// ...
Preset.self,
PresetParams.self,
// ...
])
do {
sharedModelContainer = try ModelContainer(for: schema, migrationPlan: MigrationPlan.self)
} catch {
fatalError("Could not create ModelContainer: \(error.localizedDescription)")
}
}
}
And there is a migrationPlan:
MigrationPlan
// MARK: V102
// typealias ...
// MARK: V101
typealias Preset = AppSchemaV101.Preset
typealias PresetParams = AppSchemaV101.PresetParams
// MARK: V100
// typealias ...
enum MigrationPlan: SchemaMigrationPlan {
static var schemas: [VersionedSchema.Type] {
[
AppSchemaV100.self,
AppSchemaV101.self,
AppSchemaV102.self,
]
}
static var stages: [MigrationStage] {
[AppMigrateV100toV101, AppMigrateV101toV102]
}
static let AppMigrateV100toV101 = MigrationStage.lightweight(fromVersion: AppSchemaV100.self, toVersion: AppSchemaV101.self)
static let AppMigrateV101toV102 = MigrationStage.lightweight(fromVersion: AppSchemaV101.self, toVersion: AppSchemaV102.self)
}
// MARK: Here is the AppSchemaV101
enum AppSchemaV101: VersionedSchema {
static var versionIdentifier: Schema.Version = Schema.Version(1, 0, 1)
static var models: [any PersistentModel.Type] {
return [ // ...
Preset.self,
PresetParams.self
]
}
}
Fails on iOS 18.3.x: "Failed to fulfill link PendingRelationshipLink"
So I expected the SwiftData subsystem to work correctly with version control. A good news is that on iOS 18.1 it does work. But it fails on iOS 18.3.x with a fatal Error:
"SwiftData/SchemaCoreData.swift:581: Fatal error: Failed to fulfill link PendingRelationshipLink(relationshipDescription: (<NSRelationshipDescription: 0x30377fe80>), name preset, isOptional 0, isTransient 0, entity PresetParams, renamingIdentifier preset, validation predicates (), warnings (), versionHashModifier (null)userInfo {}, destination entity Preset, inverseRelationship (null), minCount 0, maxCount 0, isOrdered 0, deleteRule 1, destinationEntityName: "Preset", inverseRelationshipName: Optional("presetAudioParams")), couldn't find inverse relationship 'Preset.presetAudioParams' in model"
Fails on iOS 17.5: Another Error
I tested it on iOS 17.5 and found another issue: Accessing or mutating the "PresetAudioParams" property causes the SwiftData Macro Codes to crash, affecting both Getter and Setter. It fails with an error:
"EXC_BREAKPOINT (code=1, subcode=0x1cc1698ec)"
Tweaking the @Relationship marker and ModelContainer settings didn't fix the problem.
I'm experiencing a persistent issue with CloudKit sharing in my iOS application. When attempting to present a UICloudSharingController, I receive the error message "Unknown client: ChoreOrganizer" in the console.
App Configuration Details:
App Name: ChoreOrganizer
Bundle ID: com.ProgressByBits.ChoreOrganizer
CloudKit Container ID: iCloud.com.ProgressByBits.ChoreOrganizer
Core Data Model Name: ChoreOrganizer.xcdatamodeld
Core Data Entity: Chore
Error Details:
The error "Unknown client: ChoreOrganizer" occurs when I present the UICloudSharingController
This happens only on the first attempt to share; subsequent attempts during the same app session don't show the error but sharing still doesn't work
All my code executes successfully without errors until UICloudSharingController is presented
Implementation Details:
I'm using NSPersistentCloudKitContainer for Core Data synchronization and UICloudSharingController for sharing. My implementation creates a custom CloudKit zone, saves both a record and a CKShare in that zone, and then presents the sharing controller.
Here's the relevant code:
@MainActor
func presentSharing(from viewController: UIViewController) async throws {
// Create CloudKit container
let container = CKContainer(identifier: containerIdentifier)
let database = container.privateCloudDatabase
// Define custom zone ID
let zoneID = CKRecordZone.ID(zoneName: "SharedChores", ownerName: CKCurrentUserDefaultName)
do {
// Check if zone exists, create if necessary
do {
_ = try await database.recordZone(for: zoneID)
} catch {
let newZone = CKRecordZone(zoneID: zoneID)
_ = try await database.save(newZone)
}
// Create record in custom zone
let recordID = CKRecord.ID(recordName: "SharedChoresRoot", zoneID: zoneID)
let rootRecord = CKRecord(recordType: "ChoreRoot", recordID: recordID)
rootRecord["name"] = "Shared Chores Root" as CKRecordValue
// Create share
let share = CKShare(rootRecord: rootRecord)
share[CKShare.SystemFieldKey.title] = "Shared Tasks" as CKRecordValue
// Save both record and share in same operation
let recordsToSave: [CKRecord] = [rootRecord, share]
_ = try await database.modifyRecords(saving: recordsToSave, deleting: [])
// Present sharing controller
let sharingController = UICloudSharingController(share: share, container: container)
sharingController.delegate = shareDelegate
// Configure popover
if let popover = sharingController.popoverPresentationController {
popover.sourceView = viewController.view
popover.sourceRect = CGRect(
x: viewController.view.bounds.midX,
y: viewController.view.bounds.midY,
width: 1, height: 1
)
popover.permittedArrowDirections = []
}
viewController.present(sharingController, animated: true)
} catch {
throw error
}
}
Steps I've already tried:
Verified correct bundle ID and container ID match in all places (code, entitlements file, Developer Portal)
Added NSUbiquitousContainers configuration to Info.plist
Ensured proper entitlements in the app
Created and configured proper provisioning profiles
Tried both default zone and custom zone for sharing
Various ways of saving the record and share (separate operations, same operation)
Cleaned build folder, deleted derived data, reinstalled the app
Tried on both simulator and physical device
Confirmed CloudKit container exists in CloudKit Dashboard with correct schema
Verified iCloud is properly signed in on test devices
Console Output:
1. Starting sharing process
2. Created CKContainer with ID: iCloud.com.ProgressByBits.ChoreOrganizer
3. Using zone: SharedChores
4. Checking if zone exists
5. Zone exists
7. Created record with ID: <CKRecordID: 0x3033ebd80; recordName=SharedChoresRoot, zoneID=SharedChores:__defaultOwner__>
8. Created share with ID: <CKRecordID: 0x3033ea920; recordName=Share-C4701F43-7591-4436-BBF4-6FA8AF3DF532, zoneID=SharedChores:__defaultOwner__>
9. About to save record and share
10. Records saved successfully
11. Creating UICloudSharingController
12. About to present UICloudSharingController
13. UICloudSharingController presented
Unknown client: ChoreOrganizer
Additional Information:
When accessing the CloudKit Dashboard, I can see that data is being properly synced to the cloud, indicating that the basic CloudKit integration is working. The issue appears to be specific to the sharing functionality.
I would greatly appreciate any insights or solutions to resolve this persistent "Unknown client" error. Thank you for your assistance.
Good morning,
I'm encountering reliability issues with DDC/CI communication when using USB-C connection. Initially using ddc-hi (which uses this package), I ran into several issues that I've partially resolved but still need help addressing.
Environment
OS: macOS
Display Connection: USB-C
for _ in 1 ... (numOfRetryAttemps ?? 4) + 1 {
for _ in 1 ... max((numOfWriteCycles ?? 2) + 0, 1) {
usleep(writeSleepTime ?? 10000)
success = IOAVServiceWriteI2C(service, UInt32(ARM64_DDC_7BIT_ADDRESS), UInt32(dataAddress), &packet, UInt32(packet.count)) == 0
}
if !reply.isEmpty {
usleep(readSleepTime ?? 50000)
if IOAVServiceReadI2C(service, UInt32(ARM64_DDC_7BIT_ADDRESS), 0, &reply, UInt32(reply.count)) == 0 {
success = self.checksum(chk: 0x50, data: &reply, start: 0, end: reply.count - 2) == reply[reply.count - 1]
}
}
if success {
return success
}
usleep(retrySleepTime ?? 20000)
}
The result from IOAVServiceReadI2C is not reliable in some cases.
Do we have any other API to get VCP code from monitor like Intel version done.
The previous APIs weren’t working anymore on the M1 GPU, the IOFramebuffer was now an IOMobileFramebuffer and the IOI2C* functions weren’t doing anything.
We have a user that has an active subscription according to the appstore in our product but it is registering as expired. Hitting the subscribe button in the SwiftUI SK2 dialog does nothing, meaning, nothing happens.
Any ideas?
Topic:
App & System Services
SubTopic:
StoreKit
Dear Apple Developer Support,
I am reaching out for guidance on implementing continuous directional and location updates in a watchOS app designed as part of a mapping/navigation solution.
Current Scenario:
We send continuous location and direction updates from our iOS app to the watchOS companion app.
When viewing directions on the Apple Watch, the screen dims after a short period, and the live data stops updating consistently, even though the user is actively looking at the screen.
This negatively impacts the usability of real-time navigation on watchOS.
Our Objective:
Prevent screen dimming (or extend screen-on time) while the user is viewing navigation directions.
Ensure reliable, continuous data updates on the watch screen during active navigation sessions.
Request:
We would appreciate your guidance on:
The recommended method to keep the watchOS screen active while displaying real-time navigation data.
Proper use of APIs such as WKExtendedRuntimeSession, WorkoutSession, or any other mechanism suitable for this use case.
Any best practices or App Store review considerations for apps that require extended screen time and continuous updates.
How such use cases were traditionally handled on watchOS and what has or hasn’t worked.
We want to ensure we're implementing this in a battery-efficient, user-respectful, and Apple-compliant manner.
Thank you for your assistance and guidance.
Hi,
I’m trying to perform UWB ranging between an iPhone and a Qorvo DWM3001CDK accessory using Apple NI’s NINearbyAccessoryConfiguration class. I’ve followed the steps described in the official Apple documentation (https://developer.apple.com/documentation/nearbyinteraction/ninearbyaccessoryconfiguration), specifically for enabling background mode using the init(accessoryData:bluetoothPeerIdentifier:) initializer.
The configuration is successfully created, and background mode is enabled. However, when the iPhone starts the session, I doesn’t receive any ranging data from the DWM3001CDK, and the session ends with a timeout.
Interestingly, if I use the init(data:) initializer, I can successfully receive ranging data, but this only works in foreground mode, which doesn’t meet my requirements.
Steps I’ve followed:
Used Core Bluetooth to discover and pair the accessory.
Retrieved the configuration data from the accessory according to the third-party UWB device specifications.
Initialized the configuration using NINearbyAccessoryConfiguration(accessoryData:bluetoothPeerIdentifier:) for background mode.
Started the session with NISession.run(configuration).
Waited for updates in the delegate method session(_:didUpdate:).
Specific questions:
Are there additional requirements for using init(accessoryData:bluetoothPeerIdentifier:) to enable background UWB ranging with the DWM3001CDK?
Is there a known difference in how init(data:) and init(accessoryData:bluetoothPeerIdentifier:) handle the ranging process?
Any advice or insights would be greatly appreciated.
Thanks in advance!
Hi,
We are trying to make the PKAddPaymentPassViewController to show the correct list of devices to where the pass can be added.
We have analysed the documentation and we are using the PrimaryAccountIdentifier field which is the field that supposedly controls this behavior but the list of devices presented in the view controller always include one iPhone and one Apple Watch, regardless of where the card has been already added.
We are initializing the PKAddPaymentPassRequestConfiguration object with:
PKEncryptionScheme
PrimaryAccountIdentifier
CardholderName
PrimaryAccountSuffix
LocalizedDescription
PaymentNetwork
PrimaryAccountIdentifier
CardholderName
PrimaryAccountSuffix
LocalizedDescription
We have also verified the configuration in our payment pass processor and everything should be ok.
We would like to have some help on achieving the desired flow for Apple Pay, which is to present the PKAddPaymentPassViewController with the correct list of available devices and not the full list.
Thank you.
I'm working on a project to allow HID input from macOS to a connected iOS device. Are we prohibited from matching to a connected iPhone with DriverKit? I see the attribute kCDCDoNotMatchThisDevice for my iPhone is YES when looking at the IO registry and my dext does not initialize
Hi everyone,
I'm facing an issue where I cannot write a file to a shared App Group container in my tvOS app when running on a real device. My code works perfectly on the simulator, but fails on a physical device with a permissions error. I’ve set up an App Group with a custom identifier (e.g., group.<my.identifier>), and it’s correctly configured in the Capabilities section of Xcode for both my main app and widget targets.
Here’s the code I’m using to save a test file:
func saveTestFile() {
guard let groupURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.<my.identifier>") else {
print("Couldn't access the Group URL.")
return
}
let containerURL = groupURL.appendingPathComponent("Library", isDirectory: true)
if FileManager.default.isWritableFile(atPath: containerURL.path) {
print("Directory IS writable")
} else {
print("Directory IS NOT writable")
}
let fileURL = containerURL.appendingPathComponent("test.txt")
let content = "Hello App Group!"
do {
try content.write(to: fileURL, atomically: true, encoding: .utf8)
print("File test.txt is saved at: \(fileURL.path)")
} catch {
print("Error while saving the file: \(error)")
}
}
Console:
Directory IS NOT writable
Error while saving the file: Error Domain=NSCocoaErrorDomain Code=513 "You don’t have permission to save the file “test.txt” in the folder “”." UserInfo={NSFilePath=/private/var/mobile/Containers/Shared/AppGroup//Library/test.txt, NSURL=file:///private/var/mobile/Containers/Shared/AppGroup//Library/test.txt, NSUnderlyingError=0x14387fbe0 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}}
I’ve tried saving the file in different subdirectories within the App Group container:
Directly in groupURL (root of the container).
In groupURL.appendingPathComponent("Library").
In groupURL.appendingPathComponent("Caches").
Do you have any ideas what is the problem?
Thanks in advance for any help!
I dont know if this is the appropriate forum for this.
Answers I've found on the web points me towards intentions, but somehow I couldnt make it work.
Im trying to activate siri on carplay to ask user for voice input then make a search.
Is this a custom intent capability or is there any other way.
Hello,
I have an app in AppStore "Counter Widget". https://apps.apple.com/app/id1522170621
It allows you to add a widget to your homescreen/lockscreen to count anything.
Everything works fine except for one scenario. iOS 18+
I create 2 or more widgets for one counter. For example, medium and small widgets.
I click on the widget button to increase or decrease the value.
The button in the widget uses Button(intent: AppIntent) to update the value and calls WidgetCenter.shared.reloadAllTimelines() to update the second widget for the same counter.
For iOS 18 in this particular scenario, you don't even have to call the WidgetCenter.shared.reloadAllTimelines(). iOS already knows that there is a widget with the same INIntent settings and will update it itself.
Both widgets are updated and show the new value. Everything is correct.
Now on the homescreen I open the widget configuration for one of the widgets to change the INIntent for the widget. For example, i change the background to wallpaper. This is just a skin for the widget, and the widget is associated with the same counter value as before.
As in (2), I click the widget button to increase or decrease the value.
But now only one widget is updated. iOS ignores my call to WidgetCenter.shared.reloadAllTimelines() and does not update the second widget connected to the same counter.
As I found, iOS, when I call WidgetCenter.shared.reloadAllTimelines() from the widget itself, updates other widgets only if INIntent is absolutely equal for them.
Overriding isEqual for them did not help. That is, I cannot specify which fields from my INIntent can be ignored during such an update and consider that widgets are equal and need to be updated. Obviously iOS make this compare outside my code.
The main problem is that when the user adds a widget to the lock screen and increases and decreases the value there. After that, he opens the home screen and the widget there is not synchronized with the value from the widget on the lock screen.
How to solve this problem?
I have a renewing monthly subscription in my app and recently added upgrade possibilities to yearly and 6 month subscriptions. Those new subscriptions were reviewed, approved and published to App Store.
I'm showing a modal for users in the app from where they can upgrade their subscription. Upgrading was tested with real devices on Sandbox and TestFlight. There has been successful purchases through the in app modal in production app, and directly upgrading from App Store.
However, for some users there seems to happen a failed transaction with paymentCancelled error code during the upgrade. The IAP is still successful, their subscription is upgraded and they haven't voluntarily canceled the IAP. The localized description of the error is "Toimintoa ei voitu suorittaa. (Virhe 2 kohteessa SKErrorDomain.)" which translates to "The operation could not be completed. (Error 2 in SKErrorDomain.)"
These users have various iPhones (iPhone 12 Pro, iPhone 14 Pro, iPhone 15 Pro, iPhone 16 Pro) with up to date iOS versions (>= 18.3.1).
I'm receiving DID_CHANGE_RENEWAL_PREF (UPGRADE) server notification of these purchases on my server.
I haven't been able to reproduce this error myself.
Any ideas why StoreKit might fail the transaction with paymentCancelled error but still successfully upgrade the subscription?
Topic:
App & System Services
SubTopic:
StoreKit
I would like to add a Live Activity to my app, but unfortunately I always get an error message. When I go into the Identifiers via the Developer Portal and look at my app, there is no Activity Kit or Live Activity in the Capabilites that I could activate. In XCode I don't see the option for Signing & Capabilities either... Can anyone help me how to add this correctly? Thanks in advance!