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.

Posts under General subtopic

Post

Replies

Boosts

Views

Activity

How to Set Up Deferred Deep Linking
I have universal links configured for my iOS app which work as expected when the app is installed. When the app is not installed the universal link will go to the browser as expected. What I want to do is redirect to the app store, allow the user to install the app, then redirect them to the initial universal link. Redirecting them to the app store isn't the hard part I can achieve that from the webpage, however I don't know how to save a reference to that initial link to redirect them once they instal the app. What I want the flow to be for a user who doesn't have the app is: visit a universal link (example.com/UUID) redirect to the app store and install the app open the app and redirect to example.com/UUID I've seen some ways people are doing this with the clipboard but I don't love that solution, I also don't want to use a 3rd party service if I can avoid it - how are the 3rd party services making this happen?
4
5
4.6k
Apr ’25
Interactive Live Activity Bug in iOS 18 - perform not called
In iOS 18 (beta 1-4) when you set openAppWhenRun = false in your AppIntent of your live activity the perform function never gets called. In iOS 16 and 17 my live activities work. I have downloaded other apps and in their live activities any button tab which doesn´t open the app is also doing nothing in iOS 18. Has anyone got this working? Any comments from an Apple engineer on this?
4
2
1.4k
Apr ’25
Associated Domains and location of the AASA file when “service”=”Authsrv”
We are planning to use our internal IdP (PingFederate) for authentication of end users in their iOS apps using ASWebAuthenticationSession. Initial tests are successful, but the user is prompted for every login (and logouts) with a consent dialogue box: “AppName” wants to use “internal domain-name” to Sign In This allows the app and website to share information about you. Cancel Continue” Let’s say that our top-level domain is “company.no”, where our IdP is placed at “idp.company.com”. I have seen examples where the Associated domains entitlement points to the idp as a webserver for serving the JSON output AASA file. In this case that would be: authsrv: idp.company.com Anyone with experience implementing this structure with the IdP as webserver for serving the JSON output? Our problem is that trying to use the IdP as webserver for this purpose is that it is very complicated to modify the IdP’s webserver configuration. Also, this modification needs to be re-done every time we need to upgrade the IdP. My question is therefore also related to the options of which webserver to install the AASA file on. Has anyone installed the file on a generic webserver on the toplevel domain like “webserver.company.com” ?
4
0
130
Apr ’25
Database disk image is malformed in Call Blocking
I have an app developed by using the Callkit/Call-Blocking and received feedback from individual users, when using [cxcalldirectorymanager reloadextensionwithidentifier] to write call blocking data, it returned error code 11 with the following contents: errorCode: 11 errorDomain: com.apple.callkit.database.sqlite errorDescription: sqlite3_step for query 'DELETE FROM PhoneNumberBlockingEntry WHERE extension_id =?' returned 11 (11) errorMessage 'database disk image is malformed' I want to know the reasons for this error and how to solve it,Thanks!
4
3
1.1k
Nov ’25
CallKit blocked call remains Missed Calls
I’m currently developing a spam number blocking app using CallKit. I’ve confirmed that up to iOS 26 beta 5, there is a bug where number blocking doesn’t work. In my current tests, the ringtone doesn’t sound and the blocking works fine, but the call still appears in the missed calls list, which is bothersome. If the bug is fixed in future versions (as it was in previous versions), is there a way to block the number so that it also does not appear in missed calls?
4
1
144
Aug ’25
Pushkit/Callkit with unlocked SIM before first unlock
We have a problem in a scenario that SIM lock is disabled so after a phone reboots it has the Internet connection but it is still locked. When you call into the VOIP app the app is not being launched as the result (it seems reasonable because it wouldn't be able to access the keychain items etc...) but the OS still seem to enforce the rule that the app needs to report the new incoming call. When we then unlock the app we can see no more pushkit pushes are arriving (dropped on the floor in the console) but we get the three initial pushes that were send during the locked phase right after the app launch.
4
0
202
May ’25
Live Caller ID: Multiple userIdentifier values for same device - Expected behavior?
Hello! We're currently testing Live Caller ID implementation and noticed an issue with userIdentifier values in our database. Initially, we expected to have approximately 100 records (one per user), but the database grew to about 10,000 evaluationKey entries. Upon investigation, we discovered that the userIdentifier (extracted from "User-Identifier" header) for the same device remains constant throughout a day but changes after a few days. We store these evaluation keys using a composite key pattern "userIdentifier/configHash". All these entries have the same configHash but different userIdentifier values. This behavior leads to unnecessary database growth as new entries are created for the same users with different userIdentifier values. Could you please clarify: Is this the expected behavior for userIdentifier to change over time? If yes, is there a specific TTL (time-to-live) for userIdentifier? If this is not intended, could this be a potential iOS bug? This information would help us optimize our database storage and implement proper cleanup procedures. Thank you for your assistance!
4
1
445
Mar ’25
About AppShortcuts limit
I developed a shortcut feature for my app using the AppIntents framework, which can display a maximum of 10 shortcuts in the Shortcuts app. However, I've noticed that apps like Tesla and Porsche have a significantly larger number of shortcuts, far exceeding 10. After searching online, I found that they might be using Intent Extensions and the SiriKit framework. I customized an Intent through SiriKit, checked the option for "Intent is user-configurable in the Shortcuts app" and "Add to Siri." I can find this shortcut when I search for it, but it does not appear on the homepage or under the app category. Is there any way to resolve this?
4
0
211
Aug ’25
Question about including all project classes in ofClasses parameter when using NSKeyedUnarchiver.unarchivedObject(ofClasses:from:)
Hello, I have a question about data deserialization using NSKeyedUnarchiver in iOS SDK development. Current Situation: Previously, we were using the NSKeyedUnarchiver.unarchiveObject(with: Data) function We have changed to using the NSKeyedUnarchiver.unarchivedObject(ofClasses:from:) method to deserialize complex objects stored in UserDefaults We need to include all types in the ofClasses parameter, including Swift primitive types as well as various custom classes and structs within the project Questions: Implementation Approach: Is it correct pattern to include all classes defined in the project in the ofClasses array? Is this approach recommended? Runtime Stability: When using this approach, is there a possibility of runtime crashes? Are there any performance issues? Alternative Methods: If the current approach is not the correct pattern, what alternatives should we consider? Current Code Structure: All model classes conform to the NSSecureCoding protocol We use the requiringSecureCoding: true parameter We use a whitelist approach, explicitly listing only allowed classes I would like to know if this structure is appropriate, or if we should consider a different approach. Thank you.
4
0
210
Oct ’25
TipKit popover Issues...
I have been trying to use TipKit popovers in my App. They all behave as expected in the simulator but on a real device I am seeing some strange behaviors. I have a couple of instances of where the tip is displaying an entire sheet instead of just the popover. In another case I cannot dismiss the Tip. Has anyone seen these behaviors and are there known issues/workarounds for this? I am reluctant to use something that works perfectly in the simulator but gives unpredictable results on a device. Not a good user experience in my opinion.
4
1
191
Aug ’25
AlarmKit Not Playing Custom Sound or Named System Sounds - iOS 26 beta 4 (23A5297i)
I'm using the new AlarmKit framework to schedule and trigger alarms in my Swift app in iOS 26 beta 4 (23A5297i). I'm trying to customize the alarm sound using a sound file embedded in the app bundle or by referencing known system tones. Problem: No matter what I pass to .named("sound-2"), whether a file bundle url, .named("sound-2.caf"), tried .mp3, .caf & .aiff, or a known iOS system sound like .named("Radar") ("Chimes", etc.), the alarm always plays the default system alert tone. There's no error or warning, but the custom or specified sound is silently ignored. sound: .named("sound-2") Question: What is the correct method or approach to play custom sound / music when Alarm Triggers? What .named("...") expects file name, file Path URL or System sound name? Is there any specific audio file length accepted or specific format? Challenge: The alarm functionality feels incomplete without support for custom sounds. A single default alert tone is often not sufficient to wake up users effectively. Hope it will be fixed in the next iOS updates.
4
2
185
Aug ’25
MetricKit Metric Payload Split
In MetricKit, a metric payload comes in with a time range which usually means it contains multiple launches/sessions. How can we relate things that will change between launches or sessions such as pid and lowPowerModeEnabled from the metadata. Will there be multiple payloads for each unique value or is there some other way to use this?
4
0
140
3d
apple-app-site-association file 404 problem
We put the apple-app-site-association file at https://ourdomain.com.tr/.well-known/apple-app-site-association. When we send a request to url, we get 200 response code every time and we can see the file. But sometimes when we try to access https://app-site-association.cdn-apple.com/a/v1/ourdomain.com.tr url with browser or CMD tool, we are facing with 404 response code. There isn't any ip adress filter in our systems and we tried using vpn for sending same request from different locations(america and europe) but nothing changed. In addition, can anyone provide the ip list of apple cdn servers to check the F5 Load balancer WAF logs? CMD output: C:\Users\Name>curl -Lv https://app-site-association.cdn-apple.com/a/v1/ourdomain.com.tr Host app-site-association.cdn-apple.com:443 was resolved. IPv6: (none) IPv4: 17.253.122.197, 17.253.15.210, 17.253.122.196, 17.253.107.201, 17.253.57.203, 17.253.15.198, 17.253.57.200 Trying 17.253.122.197:443... Connected to app-site-association.cdn-apple.com (17.253.122.197) port 443 schannel: disabled automatic use of client certificate ALPN: curl offers http/1.1 ALPN: server accepted http/1.1 using HTTP/1.x GET /a/v1/ourdomain.com HTTP/1.1 Host: app-site-association.cdn-apple.com User-Agent: curl/8.9.1 Accept: / Request completely sent off schannel: remote party requests renegotiation schannel: renegotiating SSL/TLS connection schannel: SSL/TLS connection renegotiated < HTTP/1.1 404 Not Found < Apple-Failure-Details: {"cause":"context deadline exceeded (Client.Timeout exceeded while awaiting headers)"} < Apple-Failure-Reason: SWCERR00301 Timeout < Apple-From: https://ourdomain.com.tr/.well-known/apple-app-site-association < Apple-Try-Direct: true < Cache-Control: max-age=3600,public < Content-Length: 10 < Content-Type: text/plain; charset=utf-8 < Date: Mon, 14 Apr 2025 12:52:04 GMT < Expires: Mon, 14 Apr 2025 12:52:14 GMT < Age: 1770 < Via: http/1.1 uklon5-vp-vst-004.ts.apple.com (acdn/268.14469), https/1.1 uklon5-vp-vfe-002.ts.apple.com (acdn/268.14469), http/1.1 frmrs1-edge-mx-008.ts.apple.com (acdn/268.14469), http/1.1 frmrs1-edge-fx-005.ts.apple.com (acdn/268.14469) < X-Cache: hit-fresh, hit-stale, hit-fresh, hit-fresh < CDNUUID: 9e72cf99-1503-4644-9ea3-173328a25c94-31496306226 < Connection: keep-alive < Not Found Connection #0 to host app-site-association.cdn-apple.com left intact
4
0
310
4d
How to learn most recent best practices?
Hello. Background: Most learning resources are for leaning Swift/Objective-C. I'm pretty sure I need something different. I'm already an experienced software engineer, just new to iOS/MacOS development. My problem is not learning the language, but rather how to learn modern best practices. I cannot find examples for what I'm looking for. So much seems to be sparse on implementation details, out of date, or both. I'm trying to write an app that has a few distinct parts. The UI portion will be mostly a menu bar app, which I am not having a problem discovering resources for how to implement. The app will also have a daemon and utilize network extensions. This is where I am having trouble. What's the current best practices on how to write and launch a daemon? Should the daemon be its own library/package which is them imported into the main app? If so, which Xcode template do I use for this? Are there any Hello World! examples of this? What is the best way for a UI app to communicate with a daemon? Are there any Hello World! repositories on how to implement network extensions? Should this be done in the main UI app, or in a separate library/package? TIA
4
0
150
Apr ’25
iOS26 beta4 CallKit block number function not working
Hi I'm novice developer. I’m currently developing a phone number blocking app using a Call Directory Handler Extension. The blocking feature works perfectly on iOS 18.5, but it doesn’t seem to function properly on iOS 26 beta 4. The extension is invoked, and the numbers are passed correctly, but incoming calls are not being blocked as expected. Is there a known issue with CallKit or Call Directory Extensions on iOS 26 beta 4
4
0
198
Aug ’25
app crashed _CFRelease.cold.1
In my app, I implemented a screen recording functionality. But there was an unexpected crash. 0 CoreFoundation _CFRelease.cold.1 + 16 1 CoreFoundation ___CFTypeCollectionRelease 2 ReplayKit ___56-[RPScreenRecorder captureHandlerWithSample:timingData:]_block_invoke + 148 3 libdispatch.dylib __dispatch_call_block_and_release + 32 4 libdispatch.dylib __dispatch_client_callout + 16 5 libdispatch.dylib __dispatch_lane_serial_drain + 740 6 libdispatch.dylib __dispatch_lane_invoke + 388 7 libdispatch.dylib __dispatch_root_queue_drain_deferred_wlh + 292 8 libdispatch.dylib __dispatch_workloop_worker_thread + 540 9 libsystem_pthread.dylib __pthread_wqthread + 292
4
0
172
Jul ’25
Receive Custom URL Parameters
Hello! I’m trying to handle custom URLs (e.g., customurl://open?param=value) that open the app. However, while the app launches via the custom URL as expected, the parameters are not being passed to or are accessible from the iOS-specific implementation. Currently, if I open a custom URL via Safari, the app gets launched but the custom URL and parameters are not accessible. customurl://open?hello=test According to the iOS Docs ( https://developer.apple.com/documentation/xcode/defining-a-custom-url-scheme-for-your-app#Handle-incoming-URLs ) any URLs should be passed to: func application(_ application: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:] ) -&gt; Bool I do not register the above application function to be called but instead this one is executed during app start with launchOptions always being nil: func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -&gt; Bool This is the case regardless of if the App is started fresh or was already running in the background. My pInfo entry for the custom URL: &lt;key&gt;CFBundleURLTypes&lt;/key&gt; &lt;array&gt; &lt;dict&gt; &lt;key&gt;CFBundleTypeRole&lt;/key&gt; &lt;string&gt;Viewer&lt;/string&gt; &lt;key&gt;CFBundleURLName&lt;/key&gt; &lt;string&gt;dev.customurl.project&lt;/string&gt; &lt;key&gt;CFBundleURLSchemes&lt;/key&gt; &lt;array&gt; &lt;string&gt;customurl&lt;/string&gt; &lt;/array&gt; &lt;/dict&gt; &lt;dict/&gt; &lt;/array&gt; TLDR: How can I access the parameters, passed with the URL? Any thoughts on what I am doing wrong?
4
0
200
Apr ’25
ExtensionFoundation on iOS 26
Hi, I'm trying to add an extension to my app on iOS 26. I've followed the instructions on https://developer.apple.com/documentation/extensionfoundation/adding-support-for-app-extensions-to-your-app and made it as far as being able to launch the extension: let monitor = try await AppExtensionPoint.Monitor(appExtensionPoint: .localWebServerExtension) currentIdentity = monitor.identities.first if let currentIdentity = currentIdentity { let myConfig = AppExtensionProcess.Configuration(appExtensionIdentity: currentIdentity, onInterruption: { NSLog("extension was terminated") }) myProcess = try await AppExtensionProcess(configuration: myConfig) myConnection = try myProcess?.makeXPCConnection() } None of these calls throw, and when I examine myProcess from inside that code, it seems to be normal (there's a pid, for example). Yet the code inside my extension seems to not be executed: breakpoints are not triggered, NSLog() calls do not appear on the console. The onInterruption() callback is also not triggered, or at least it does not appear on the console either. I've probably missed something obvious, but what could it be?
4
0
162
Oct ’25
identitylookup needed for ILMessageFilterQueryHandling?
My iOS app uses a Message Filter extension (via ILMessageFilterQueryHandling) and works only when run directly as the extension target. When installed normally (via TestFlight), the filter does not trigger at all — which I now believe is because iOS enforces the com.apple.developer.identitylookup entitlement at runtime. Anyone know anything about this? I put in a request for the entitlement last week but heard nothing back. Called Apple "technical" support and they had no idea what I was talking about. The documentation around this is EXTREMELY lacking in my opinion...
4
0
93
Apr ’25