Hello,
I'm trying to display some Duration in a live activity using a custom format, with the goal of displaying a match time (only minutes) as, e.g. 33', 45' (+2), etc.
For that purpose, I'm using a TimeDataSource<Duration>, so that it also updates automatically given a starting point.
I've implemented my custom FormatStyle, trying to somehow mimic the existing UnitsFormatStyle (which perfectly works with live activities) but just changing the format.
I've added conformance to DiscreteFormatStyle, and code-wise everything seems to be ok (if I've understood things correctly). It compiles and it even works as expected in a playground.
However, when trying to use it within the live activity, I'm getting these cryptic errors in the Console.app, and the live activity just turns into a view with placeholders
Failed to fetch view from archive at index 12: SwiftUI.AnyCodable<SwiftUI.(unknown context at $1d47f6af0).SafelyCodableRequirement>.(unknown context at $1d47fe410).Errors.noType(mangledName: "7SwiftUI18TimeDataFormattingO10ResolvableVy_AA0cD6SourceVAAE15DurationStorageOys0H0V_GAK28BlickLiveActivitiesExtensionE16MatchFormatStyleVG")
[624AEC37-13D9-4927-9F41-C3092B61E214] Failed to return view entry from archive for view model with tag listItem with error: SwiftUI.AnyCodable<SwiftUI.(unknown context at $1d47f6af0).SafelyCodableRequirement>.(unknown context at $1d47fe410).Errors.noType(mangledName: "7SwiftUI18TimeDataFormattingO10ResolvableVy_AA0cD6SourceVAAE15DurationStorageOys0H0V_GAK28BlickLiveActivitiesExtensionE16MatchFormatStyleVG")
Are there any limitations when it comes to live activities and these custom formatters? This whole error doesn't make sense, since I'm only aiming to update every minute, which should just be fine, the same thing I get with the UnitsFormatStyle.
For reference, this is my playground, which just works as expected:
import Foundation
import SwiftUI
import PlaygroundSupport
extension Duration {
struct MatchFormatStyle: DiscreteFormatStyle, Sendable {
let periodLength: Int
let overtime: Int
func format(_ value: Duration) -> String {
let (seconds, _): (Int64, Int64) = value.components
let minutes: Int = Int(seconds) / 60
let current: Int = periodLength + minutes + overtime
if current > periodLength {
return "\(periodLength)' (+\(current - periodLength))"
} else {
return "\(current)'"
}
}
func discreteInput(before input: Duration) -> Duration? {
let (seconds, _): (Int64, Int64) = input.components
let minutes: Int64 = seconds / 60 - 1
return Duration(secondsComponent: minutes * 60, attosecondsComponent: .zero)
}
func discreteInput(after input: Duration) -> Duration? {
let (seconds, _): (Int64, Int64) = input.components
let minutes: Int64 = seconds / 60 + 1
return Duration(secondsComponent: minutes * 60, attosecondsComponent: .zero)
}
}
}
extension FormatStyle where Self == Duration.MatchFormatStyle {
static func matchTime(currentTime: Int, periodLength: Int) -> Duration.MatchFormatStyle {
return Duration.MatchFormatStyle(periodLength: periodLength, overtime: max(currentTime - periodLength, .zero))
}
}
extension TimeDataSource<Date> {
static func matchDuration(for currentTime: Int, periodLength: Int) -> TimeDataSource<Duration> {
let minutesAhead: Double = Double(max(periodLength - currentTime + 1, .zero))
return TimeDataSource<Date>.durationOffset(to: Date.now.addingTimeInterval(minutesAhead * 60))
}
}
struct FooView: View {
let currentTime: Int = 36
let periodLength: Int = 45
var body: some View {
Text(
TimeDataSource<Date>.matchDuration(for: currentTime, periodLength: periodLength),
format: .matchTime(currentTime: currentTime, periodLength: periodLength)
)
.frame(width: 400, height: 200)
.font(.system(size: 50))
}
}
// Present the view controller in the Live View window
PlaygroundPage.current.setLiveView(FooView())
Any hints or suggestions are welcome, many thanks in advance.
General
RSS for tagDelve 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
In iOS 26.1, after my app answers a VoIP call on the lock screen, tapping the bottom-left "More" button doesn't bring up the app icon to jump to the app. The same scenario works normally on iOS 26. How can I resolve this issue?
Certainly! Here's a concise version of your forum post:
Title: Issues Handling Multiple Incoming Calls in CallKit
Body:
Hello,
I'm using CallKit and I am encountering challenges with handling multiple incoming calls.
Current Configuration:
configuration.maximumCallsPerCallGroup = 5
configuration.maximumCallGroups = 3
This setup aims to allow up to 5 calls per group.
Observed Behavior:
Despite the configuration, the system UI seems to limit the number of calls per group, often defaulting to "End & Accept" instead of "Hold & Accept" when a third call comes in.
Questions:
Is there a documented system-imposed limit on the number of calls per group or total calls, even if maximumCallGroups and maximumCallsPerCallGroup are set higher?
How does the system UI behave when these limits are exceeded? Are there known UI constraints or fallback behaviors?
Are there best practices for handling scenarios where the system UI cannot display all calls, such as gracefully managing incoming calls or providing alternative UI solutions?
Any insights or experiences with similar configurations would be greatly appreciated.
Thank you.
Feel free to copy and paste this directly into the Apple Developer Forums. If you need further assistance or adjustments, let me know!
Hi everyone,
I’ve been stuck on an issue with iOS Universal Links for about a week and could really use some help.
The problem
When tapping a Universal Link on iOS, my Flutter app opens correctly (desired behavior) — but immediately afterward, Safari opens the same link in the browser. So both the app and the browser open.
This only happens on iOS. On Android everything works as expected.
What works
If the link is simply the domain, like:
https://mydomain.com
…then the app opens without triggering the browser afterward. This is the correct behavior.
What doesn’t work
If the link includes a path or parameters, like:
https://mydomain.com/path
https://mydomain.com/path?param=value
…then the app opens, and then the browser opens immediately after.
What I’ve tried
Verified my AASA file using Branch’s validator:
https://branch.io/resources/aasa-validator/
→ The AASA file is valid.
Universal Links do open the correct screen inside the app — the issue is the unwanted second step (Safari opening).
Behavior is consistent across different iOS devices.
Extra details
Using Flutter.
Universal Links set up with the standard configuration (associatedDomains, AASA hosted at /.well-known/apple-app-site-association, etc.).
Question
Has anyone encountered this issue where Universal Links with paths/params open the app and then open Safari?
What could cause iOS to trigger the browser fallback even when the AASA file is valid and the app handles the link correctly?
Any insights, debugging tips, or known edge cases would be incredibly appreciated!
Hi, I didn't find any mentions in the doc about disabling the option for snoozing in an alarm. Although you can create an alarm without a snooze button using AlarmKit, the user can still snooze by clicking on the volume button, for example.
Topic:
App & System Services
SubTopic:
General
We're having trouble with getting Siri to hand off specific trigger words to our app via shortcuts. I want to be able to say "Hey Siri Myappname Foobar" but in some cases if Foobar is the name of a specific business it may launch maps instead showing locations of those businesses. Is there any way to inform Siri, "no, *****, launch our app as the shortcut specifies!"
After reading the news below, we are currently working on updating our app in preparation for the enforcement of Texas SB 2420.
https://developer.apple.com/news/?id=2ezb6jhj
Based on the information in the announcement, we understand that parents will be able to revoke their consent for apps.
However, we are unsure how an app is supposed to obtain or verify the parent’s consent status in the first place.
We reviewed the Declared Age Range API and PermissionKit’s Significant Change API, but could not find any functionality related to this.
If anyone with expertise on this topic has insight, we would greatly appreciate your guidance.
Thank you in advance.
I am trying to build my app and want to be able to integrate with apple ads services so I can get my users attribution token. I tried a added the "com.apple.developer.adservices" entitlement but now that I build my app it fails with the following error
include the com.apple.developer.adservices entitlement. Profile qualification is using entitlement definitions that may be out of date. Connect to network to update.
What do I need to do to make this work, I tried and cant fina any docs online
Topic:
App & System Services
SubTopic:
General
As of macOS 26 I have a menu item off a tray app that now is showing an exclamation mark by it when I have not defined one to show.
Where is this coming from?
Topic:
App & System Services
SubTopic:
General
When a user enables an SMS filtering extension via iOS Settings → Messages → Text Message Filtering and selects an app, the following prompt appears:
"The developer of [App Name] will receive the text, attachments and sender information in text messages from senders not in your Contacts. Messages may include personal or sensitive information like bank verification codes."
This message cannot be modified by developers, and we're receiving complaints and negative reviews from users who are alarmed by it, despite our app not collecting any data.
iOS should allow developers to customize this message or reword this message to not make false claims about data collection.
We've opened a feedback assistant report here: FB21445903
My CoreSpotlight extension seems to exceed the 6 MB memory limit. What’s the best way to debug this?
I've tried to attach the debugger on the Simulator but the extension seems to be never launched when I trigger the reindex from Developer settings. Is this supposed to work?
On device, I am able to attach the debugger. However, I can neither transfer the debug session to Instruments, nor display the memory graph. So I've no idea how the memory is used.
Any recommendations how to move forward? Is there a way to temporarily disable the memory limit since even with LLDB attached, the extension is killed.
On iOS 26, calling CXCallDirectoryManager.sharedInstance.openSettings() does not navigate to the “Call Blocking & Identification” settings page as documented. Instead, it either opens the main Phone settings page or fails to navigate entirely. This breaks the expected behavior for enabling Call Directory extensions and impacts onboarding flows for apps using CallKit.
Expected:
Settings should open directly to Phone → Call Blocking & Identification.
Actual:
Navigates to the main Phone settings page
This appears to be a regression from previous iOS versions. Documentation still states this API should open the correct page.
We are not receving incoming call from blocked numbers below iOS 26 versions but same in iOS 26 onwards we are receiving the incoming call..
Can you please provide any solutions to fix the issue
My app is a VoIP softphone for Mac that allows people to make phone calls to a regular phone numbers. The app exists since before Mac App Store. The app declares itself to the system as capable of handling tel: URLs. Until now, people could change the default handler for tel URLs in FaceTime settings (Default for calls).
In macOS Tahoe 26, this doesn't seem to be possible any more. That option is gone from the FaceTime settings.
Is it completely gone or has it been moved somewhere else? If there is no UI control for this any more, is it possible to change it programmatically?
There is a crash while running the project in Xcode 16.2. The project has been using CMPedometer and CoreMotion since 2020. I wonder: I did not have the NSMotionUsageDescription key added, why is it mandatory to add this key now?
“This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSMotionUsageDescription key with a string value explaining to the user how the app uses this data.”
Hi, I have tried to add Eve energy plug but still pairing failed, it reported always same error.
Error Domain=com.apple.MatterSupport Code=1 "(null)"
Could anyone help?
Regards
Hi everyone,
We’re experiencing a persistent issue with an App Clip Experience that continues to load on iOS devices even after being deactivated in App Store Connect more than 48 hours ago.
Issue Summary
An App Clip Experience tied to the URL pattern
https://srgplus.com/u/...
keeps appearing when scanning NFC tags or QR codes, despite being removed from App Store Connect.
Key Details
The App Clip Experience was deactivated over 48 hours ago.
iOS still launches the App Clip when scanning NFC tags or QR codes that match the URL structure.
The specific token-based App Clip Experience (for example: https://srgplus.com/u/iohgqa) was removed, but iOS still loads an App Clip as if the Experience exists.
It seems like iOS is falling back to a previously registered base URL Pattern such as:
https://srgplus.com/u
or possibly even https://srgplus.com
The problem:
This fallback App Clip is not visible anywhere in App Store Connect → Advanced App Clip Experiences.
So we cannot delete or modify it.
The behavior persists across:
Multiple devices
Different networks
After clearing device caches
After reinstalling our app
Even after scanning using devices that never used this App Clip before
This makes us believe that the App Clip Experience may be:
Cached on Apple’s servers
Or orphaned/hidden in App Store Connect
Or not properly removed from the URL pattern registry
Steps to Reproduce
Deactivate an App Clip Experience in App Store Connect.
Wait 48 hours or more.
Scan an NFC tag or QR code pointing to a previously used URL pattern.
App Clip still appears, even though no active Experience exists.
Expected Behavior
App Clip should stop appearing once the Experience is deactivated and removed.
Actual Behavior
App Clip continues to load indefinitely, suggesting a cached or orphaned configuration.
Question
Has anyone encountered similar behavior?
Is there a way to request a manual purge of App Clip URL patterns or cached Experiences from Apple’s side?
Any guidance or insights would be greatly appreciated.
Thank you!
I have a home widget with buttons (new in iOS 17).
In order to prevent taking action if the user taps on the widget buttons accidentally, I want to ask the user for confirmation.
It appeared that requestConfirmation be exactly what I needed, but no confirmation view shows up when I invoke this method in the perform function.
I have tried the following:
try await requestConfirmation(result: .result(dialog: "Are you sure you want to do this?") {
Image(.mdlsWhite)
})
and this alternative:
let confirmed: Bool = try await $name.requestConfirmation(for: self.name,
dialog: IntentDialog(stringLiteral: msg))
Neither option work.
I am starting to think that the requestConfirmation is not to be used with Home Widgets.
Is there a better way to handle confirmations for buttons included in a Home Widget?
Hi Apple Developer,
I’m working on a message-filtering application and reviewing Apple's documentation on message filtering. The documentation clearly states that MMS messages can be filtered. (https://developer.apple.com/documentation/identitylookup/sms-and-mms-message-filtering)
When we refer to MMS, it includes images, short videos, and other supported multimedia formats. However, the ILMessageFilterQueryRequest only provides the message body as a String, meaning we can access text and links but not images or other media files.
Could you please confirm whether Apple allows third-party applications to access multimedia content sent from unknown numbers?
Looking forward to your quick response.
Thanks,
Rijul Singhal
Is there any resource which describes this type of errors?
I was integrating SKADNetwork view through Ad attribution and everything from the source app side is done and this error
appears after the target app is installed and opened.
Here is the full error
Error setting install attribution pingback registered for app: <APP ID>, error: Error Domain=ASDErrorDomain Code=1209 "SKAdNetwork: Could not set registered for pingback that does not exist." UserInfo={NSLocalizedDescription=SKAdNetwork: Could not set registered for pingback that does not exist.}, result: 0
I cannot find any resource on the internet which gives any info about this ASDErrors.
If anyone can help, you would be doing me a solid, Thanks in advance.