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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App Settings Not Appearing with Xcode 16.2
I recently encountered an issue with Xcode 16.2 while attempting to integrate Settings.bundle into a new app. I added Settings.bundle as a new file (using the provided template), but when I ran the app (the default "Hello World" project), the expected three default controls (Name, Enabled, Slider) did not appear in the app's settings. To troubleshoot, I downgraded my system to macOS Sonoma 14.7.2 and Xcode 15.4 (on a 2023 Mac Mini, M2). After this downgrade, everything worked as expected. With a new project, adding Settings.bundle, and running the app, the settings entry for the app appeared, including the three default fields. This behavior suggests a potential issue or incompatibility with Xcode 16.2.
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1.3k
Dec ’24
detect FamilyControlsMember type without requesting authorization
I have an iOS app that installs a Content Filter in order to block certain types of content at the network/socket level. The Family Controls framework stipulates that this can only be done successfully on a FamilyControlsMember.child account type (or on a supervised device). Our initial release has been really successful, but I would say that perhaps 75% of our users are .individual (probably over 18). Perhaps a topic for another forum post is to discuss how Apple's policy here doesn't seem to be meeting a real need here for non-minors, but I'll leave that alone for now. The problem we're facing is that as far as I can tell, the only way to determine if someone has the right account type is to initiate an authorization request using AuthorizationCenter.shared.requestAuthorization(for:) and then inspect the error. I think it could really help the usability of the app if we could detect the account type and preemptively show a helpful message if the authorization could not succeed, and recommend some alternatives. But I've looked so far in vain for some way to do this. Is there any api in Family Controls (or elsewhere) that can query the system for this information? Any pointers would be greatly appreciated!
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264
Dec ’24
When user opened my application, it crashed immediately. [Firebase crash report CFNetwork]
When user opened my application, it crashed immediately. This is crash log message from firebase. com.apple.CFNetwork.Connection EXC_BAD_ACCESS KERN_INVALID_ADDRESS After restarting iPhone, user can use my application without crash. I cannot reproduce this crash from other device. Here are .ips crash log that I changed to .txt. crashLog-2024-12-26-182447.txt crashLog-2024-12-26-182449.000.txt crashLog-2024-12-26-182535.000.txt crashLog-2024-12-26-182535.txt Do you have any idea to fix this?
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615
Dec ’24
Issue with Live CallerID URL Caching
I've been testing the Live CallerID feature using the Apple-provided local server example - live-caller-id-lookup-example. I've been running a local server with tunneling using ngrok for the initial setup. Everything was working perfectly with the following setup: @main final class CallerID: LiveCallerIDLookupProtocol { var context: LiveCallerIDLookupExtensionContext { LiveCallerIDLookupExtensionContext( serviceURL: URL(string: "https://example-tunnel.ngrok.io")!, tokenIssuerURL: URL(string: "https://example-tunnel.ngrok.io")!, userTierToken: Data(base64Encoded: "BBBB")! ) } } However, after I updated the URLs to the production ones, I encountered an issue: @main struct CallerID: LiveCallerIDLookupProtocol { var context: LiveCallerIDLookupExtensionContext { LiveCallerIDLookupExtensionContext( serviceURL: URL(string: "https://example.net/")!, tokenIssuerURL: URL(string: "https://example/issue")!, userTierToken: Data(base64Encoded: "BBBB")! ) } } The problem is that during calls or when updating PIR parameters, the application still attempts to connect to the initial ngrok tunnel URLs instead of using the new production URLs. I can confirm this because the logs on my local server show incoming requests, indicating that the application is still referencing the old ngrok tunnel URLs. Steps I’ve taken to resolve the issue include: Deleting and reinstalling the application. Using reset(forExtensionWithIdentifier:) Unfortunately, these attempts have not been successful. I even extracted the binary of the app and extension to inspect the strings, confirming that the correct production URLs are present. The server was started with the following command: PIRService --hostname 127.0.0.1 service-config.json Could this be some sort of caching bug on the iOS side, or am I missing something?
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411
Dec ’24
Possible to access CoreData/Persistent storage from DeviceActivityReportExtension?
This is more a general question of whether it is possible to share persistent/coredata from the main app to Screentime-related extensions such as DeviceActivityReportExtension. I've set my code up (e.g., App Groups, files to different targets, using nspersistentcontainer with app group url, etc.) in a way that it builds, and the extension seems to recognize my CoreData schema (able to query using fetchrequest). But the data returned is always null. So i'm wondering if it is even possible to READ app data from the extension. I understand it is not possible to write or pass data from the extension back to the app. I've also been able to read data that was saved in main app from UserDefaults in my extension.
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442
Dec ’24
Launch URL
Hi I am developing a game app with Epic Unreal Engine. I am testing this as testFlight these days. My problem is “launch URL” what a function in Unreal Engine. This is a function that allows user to search the Internet with the entered URL. It worked well before. But not now. I don't know when it did start not working. It's like after the iPhone IOS update or the Xcode update. Mac sequoia 15.1.1 Xcode 16.2 ( Unreal Engine 5.4.4 ) IOS is 18.2. but It didn't work since the just previous version. Any advice can I get?
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263
Dec ’24
DateFormatter return wrong year
my Date type data is "2024-12-28 15:00:00 +0000" and when I use Date formatter to format date with timezone TimeZone(identifier: "Asia/Seoul"), date formatter return wrong year like below (lldb) po print(date); let formatter = DateFormatter(); formatter.timeZone = TimeZone(identifier: "Asia/Seoul"); formatter.dateFormat = "YYYY-MM-dd"; formatter.string(from: date) 2024-12-28 15:00:00 +0000 "2025-12-29" (lldb) po print(date); let formatter = DateFormatter(); formatter.timeZone = .gmt; formatter.dateFormat = "YYYY-MM-dd"; formatter.string(from: date) 2024-12-28 15:00:00 +0000 "2024-12-28"
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Dec ’24
macOS ImageCaptureCore does not recognise scanners
Hi All, I would like to develop a small macOS app using swift. I want to use ImageCaptureCore to access and control connected scanners ( via usb). I followed the official docs and wrote this ScannerManager. The code seems to be working without issues or warnings. I added the Hardened Runtime capability and both com.apple.security.personal-information.photos-library and com.apple.security.device.usb to the .entitlements file. As well added NSCameraUsageDescription to the Info.plist. Problem: None of my scanners do get detected (tested 2 different models). Of course, they are connected and do get recognized by the Image Capture App (and work as expected) and are listed in the systems app, too. When I connect my phone it does get detected by the func deviceBrowser(_ browser: ICDeviceBrowser, didAdd... delegate function. Thats why I believe my code is working but the app is lacking permissions to detect scanners somehow. Does anyone know something about this? I am using macOS 15.1.1 (24B91) on a M1 Pro. Many thanks in advance! class ScannerManager: NSObject, ICDeviceBrowserDelegate, ICDeviceDelegate { let deviceBrowser: ICDeviceBrowser private var currentDevice: ICDevice? private var scannerDeviceDelegate: ScannerDeviceDelegate? var isScanning = false var scanners: [ICDevice] = [] // MARK: - Initialization override init() { print("🚀 Initializing ScannerManager...") self.deviceBrowser = ICDeviceBrowser() super.init() self.deviceBrowser.delegate = self // Log the initial browsed device type mask self.deviceBrowser.browsedDeviceTypeMask = .scanner print("🔍 Starting device browser...") self.deviceBrowser.start() // Enhanced device logging if let devices = deviceBrowser.devices { print("\n📱 Connected devices overview:") print("Total devices found: \(devices.count)") if devices.isEmpty { print("⚠️ No devices currently connected") } else { devices.forEach { device in print("\n📌 Device Details:") print(" - Name: \(device.name ?? "unnamed")") print(" - Type: \(String(describing: device.type))") print(" - Transport Type: \(String(describing: device.transportType))") print(" - Status: \(device.hasOpenSession ? "In Use" : "Available")") print(" - Persistent ID: \(String(describing: device.persistentIDString))") print(" - Location: \(device.locationDescription ?? "Unknown")") print(" - Capabilities: \(String(describing: device.capabilities))") } } } else { print("⚠️ Unable to access device list") } } ...
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160
Dec ’24
IPhone 16 - remove Device Management
Hello. I bought a new Iphone 16, 2 days ago in my store, but when I checked it at home, it turned out that it was installed using the Telia Sweden ( Remote Management System ). Can someone help me remove this Telia RMS system from my smartphone so that it is not configured for Telia during setup? Since their configurator blocks my smartphone, with a note - Lost Iphone. The device has been blocked by Telia. I have been using Apple equipment for 10 years, I have phones and tablets. I need help
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480
Dec ’24
Spotlight doesn't show .html file results
When I search for text in a .html file using the Command-Spacebar spotlight popup the .html file is never shown in the results. On the other hand the .html file does show in the result when I search in the Finder window search field, or when I search in the Terminal using mdfind. Why is this and how can I fix? I want to use spotlight to find .html files. You can reproduce the problem like this: echo spotlighttest > testone.txt % echo spotlighttest > testtwo.html % mdfind spotlighttest 2024-12-30 14:22:28.552 mdfind[28326:550500] [UserQueryParser] Loading keywords and predicates for locale "en_US" 2024-12-30 14:22:28.553 mdfind[28326:550500] [UserQueryParser] Loading keywords and predicates for locale "en" ~/Desktop/Spotlighttest/testone.txt ~/Desktop/Spotlighttest/testtwo.html I believe this shows that both files are index properly, but if you then do Command-Spacebar and search for "Spotlighttest" I think you will see that only testone shows as a result. Edit I believe this is a change in macOS 15.x and used to work correctly in previous macOS
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451
Dec ’24
App Store Review always got 4.3 for my apps
I created an app and submitted to app store for review and got a rejection with "4.3(a) - Design - Spam". This one was created for brand new, and I didn't find any similar apps in App store. I searched in this forum but am not sure if it is because I used flutter to build my app? How could I get a bit more specific detail why it got rejected? Guideline 4.3(a) - Design - Spam We noticed your app shares a similar binary, metadata, and/or concept as apps submitted to the App Store by other developers, with only minor differences. Submitting similar or repackaged apps is a form of spam that creates clutter and makes it difficult for users to discover new apps. Next Steps Since we do not accept spam apps on the App Store, we encourage you to review your app concept and submit a unique app with distinct content and functionality.
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315
Dec ’24
CarPlay Not Working Properly
I just purchased a new 2025 Honda Civic Hybrid sedan with the highest trim package. The staff at the dealership set CarPlay up to my iPhone 16 Pro, and all was operating perfectly. Then, last week, I started noticing random connectivity problems with it (ie: no sound from my audio apps, “not connected” being displayed on the dashboard displa, etc.) I tried to think of what had changed with my setup, and the only change was that I updated to the latest iOS update 18.2 I scheduled a service appointment with the Honda dealer in hopes that Apple and Honda can confirm a fix for this issue. I’ll try to attach an image from my car’s dashboard display as an example of an error message that isn’t resolved.
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264
Jan ’25
Siri Shortcuts Response Templates No work on iOS18.1.1
I have shortcuts up and running and I have my custom response added to my completion handler since day1. Recently I upgraded to iOS18, and found out the app I develop can not display the custom response. I test the app on iOS17.6, the display of custom response is no problem. The situation is exactly like the problem posted on 2018: https://forums.developer.apple.com/forums/thread/109324 Can anyone help me or have the same bugs? Thank you so much! Happy 2025
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443
Jan ’25
Do you need to request permission to use the Screen Time API?
I'm a complete newbie to Swift and app development, but I'm playing around with an idea that uses the ScreenTime API. Some of the articles (and AI) mention that you need to request access through Apple to use this, but based on my research it seems like this is a bit outdated. Can anyone provide a clear answer here + any resources you've used to navigate this? The documentation is pretty sparse. Thank you in advance!
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473
Jan ’25
Universal Links not working even though all debug steps succeed
I am trying to get universal links to work in our app Firefox iOS The Problem: I am not able to get universal links to work for our release app or beta app scheme locally or with a TestFlight build. I am able to get it working on our development scheme with a locally hosted app site association file. I also was able to get it working using our development scheme but setting the bundle id to the release app bundle id. I also built a demo app with the release app id and the release app development certificate. It succeeded there as well. Implementation Steps: Added associated domains entitlement to the production and beta schemes for our main app target (No associated domains entitlements or capabilities added for any extensions) Confirmed that the bundle ids associated with these schemes have the associated domains capability Added applinks:blog.mozilla.org to associated domains list Confirmed in code that user activities are being handled via SceneDelegate.swift Steps to Debug: I have gone through and validated every step in the provided Universal Link Debugging. All were successful: Associated Domains Development -> Diagnostics: Opens Installed App Validate AASA host and applinks match curl -v https://blog.mozilla.org/.well-known/apple-app-site-association returns the expected json file swcutil dl correctly downloads the AASA blob swcutil verify succeeds I have inspected the IPA of our beta build and confirmed the App ID and the associated domains is an entitlement. I have looked at the console logs filtering by swcd. I am not seeing any errors and I see the download for the AASA file kick off: Beginning data task AASA-4BABF039-3C69-4E36-AA4E-ECCDF3D14878 { domain: bl….mo….org, bytes: 0, route: cdn } There is only one error that appears in the console but our app is not enterprise-managed so I assume this is normal. Error getting enterprise-managed associated domains data. If this device is not enterprise-managed, this is normal: Error Domain=SWCErrorDomain Code=1701 "Failed to get associated domain data from ManagedConfiguration framework." UserInfo={NSDebugDescription=Failed to get associated domain data from ManagedConfiguration framework., Line=298, Function=<private>} I have run Sysdiagnos and identified for our App ID: Site/Fmwk Approval: approved I am at a loss as to what is preventing universal links from working even though all validation steps pass.
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849
Jan ’25
GroupActivityMessenger between visionOS and iOS
I have an app which passes GroupActivity messages between instances running on iOS and visionOS provided both instances were built from the same target. They do not pass successfully if the apps were built from different targets, even though the one is a duplicate of the other. I have a sample demonstrating the issue: https://github.com/bwake2012/GroupActivitiesColors I need different targets because not all third party libraries support all devices. Libraries which support connected external hardware may never support visionOS. Multiple targets is the simplest way I can see to deal with that. The two targets are duplicates, except for the destinations. The app instances appear to join the session correctly. You can see screen shots from two devices in the same session. I see errors in the debugger: messageStream(for:messageType:):618 Explanation: Decoding message from data Error: Swift.DecodingError.valueNotFound(Any, Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "message", intValue: nil), CodingKeys(stringValue: "t", intValue: nil)], debugDescription: "Decoder for value of GroupActivitiesColors.ChooseColorMessage.self not found.", underlyingError: nil))
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Jan ’25