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“Visual Studio Maui IOS”

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Reply to On iOS 26, HLS alternate audio track selection behaves inconsistently
Update — Workaround found After further investigation I have found a workaround that resolves the inconsistent track switching behaviour described above. Observation I noticed that changing the order of EXT-X-MEDIA audio entries in the manifest produced different results. Specifically, when the DEFAULT=YES track is listed first, switching behaviour is unreliable. When the DEFAULT=YES track is placed last, switching back to the default language works correctly. Workaround Reorder the EXT-X-MEDIA audio entries so that the DEFAULT=YES rendition appears last in the manifest: #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=de,NAME=Deutsch,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_DEU.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=fr,NAME=Francais,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_FRA.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=en,NAME=English,AUTOSELECT=YES,DEFAULT=YES,CHANNELS=2,URI=audio_ENG.m3u8 In our case the manifest is generated programmatically, so t
Topic: Media Technologies SubTopic: Streaming Tags:
2w
Static library links on device but fails on iOS Simulator
I’m working on an iOS workspace with: a static library project: M800SDK a test app project: TestAppObj I was able to build M800SDK for iOS Simulator on Apple Silicon as a simulator static library, and I also verified the architectures in the produced .a file. However, when I link the app target against that simulator build and try to build TestAppObj for iOS Simulator, I get the following linker errors: Undefined symbols for architecture arm64: _OBJC_CLASS_$_TokenMngr clang++: error: linker command failed with exit code 1 Additional context: The library links and works correctly when building the app for a physical iPhone. And the public header TokenMngr.h is found correctly by the app target. The app target is compiled as Objective-C++ where needed. The library is linked in the app target under “Link Binary With Libraries”. Could you help me understand: Is it possible to run on iOS Simulator ? the recommended way to package and consume this library for iOS Simulat
Topic: Developer Tools & Services SubTopic: Xcode Tags:
3
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97
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Reply to Recording a Packet Trace
Thank you for the detailed instructions, I still cannot get it to work though. My Mac is running macOS 15.7.4 and my iPhone is on iOS 26.3.1, but step 9 invariably fails. I even tried messing with the system firewall settings, allowing all incoming connections to mitmproxy and disabling the firewall altogether, but still no luck.
Topic: App & System Services SubTopic: Networking Tags:
2w
Reply to Partially disable liquid glass effect from navigation bars but retain on tabbar
@Tmmn Add this code to your collectionView or another scrollView-based class: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.style = .hard } If you want even more old-school style: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.isHidden = true } Configure appearance for navigationItem: let appearance = UINavigationBarAppearance() appearance.configureWithDefaultBackground() appearance.backgroundEffect = UIBlurEffect(style: .systemChromeMaterial) navigationItem.standardAppearance = appearance Also it can be configured globally: UINavigationBar.appearance().standardAppearance = appearance
Topic: UI Frameworks SubTopic: UIKit Tags:
2w
Reply to iOS 26.2 RC DeviceActivityMonitor.eventDidReachThreshold regression?
Thanks a lot for confirming that this is currently investigated! Can you say when this will be addressed? I have reported this horrible regression in iOS 26 beta 1 in June 2025. It’s kinda sad that this didn’t seem to have any priority for Apple to get addressed before the public version was released. In 3 months this bug report will be one year old. [quote='874099022, DTS Engineer, /thread/809410?answerId=874099022#874099022'] This is a known issue that is currently being investigated. If you have already filed a bug report for this issue, thank you. [/quote]
Topic: App & System Services SubTopic: General Tags:
2w
Instruments Malfunction
I’m reporting a severe reproducible issue in Instruments, specifically when using the SwiftUI instrument and opening Show Cause & Effect Graph. What happens: • Instruments becomes extremely laggy/unresponsive • The graph/detail area can turn solid magenta/pink • Memory usage rapidly increases (I observed around 18 GB, 25 GB, and up to 34 GB) • My Mac has crashed/restarted during this, or in other terms, had a kernel panic, where my Mac froze, and everything unresponsive. The Trackpad wouldn't even click. Important detail: • I could not find a generated kernel panic log after the crash/restart. Repro context: • SwiftUI iOS app profiled from Xcode • Trigger is specifically entering Show Cause & Effect Graph • Recordings can be short and still trigger it • Issue is much less severe or absent if I avoid that view What I already tried: • Rebooting • Short captures / fewer instruments • Clearing Xcode/Instruments caches/preferences • Retesting after cleanup • Reinstalling Xcode Is this a known Inst
Topic: Developer Tools & Services SubTopic: Instruments Tags:
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126
2w
Reliable region monitoring (geofence-based) while app is killed
I am developing an app used by public safety agencies. Part of the app is used to determine live agency staffing using geofences. For example, a geofence exists around a station, and when a user enters or exits that geofence, the app updates the staffing count at that station in real time. The issue I am having is reliably detecting when a user enters or exits the geofence while the app is killed (meaning the user force quit the app from the app launcher). I understand that iOS can relaunch an app in the background if the system terminated the process using Region Monitoring, but I haven't gotten a clear answer about whether or how this is possible if the user kills (force quits) the app. Thank you in advance for your assistance.
Topic: App & System Services SubTopic: Maps & Location Tags:
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238
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Nearby Interaction background ranging with Live Activity (iOS 18.4+)
We are evaluating the new behavior mentioned in the Nearby Interaction documentation for iOS 18.4+, which states: “In iOS 18.4 and later, your app can continue ranging in the background with any supported device if the app starts a Live Activity as it goes to the background. Could you clarify what situations are considered “can continue ranging” versus cases where it will not continue? Specifically, if my app: starts a NISession in the foreground starts a Live Activity with that data then the app goes to background should the NI session still deliver ranging updates so the app can update the Live Activity? also, my app already enable Background Modes capability
Topic: App & System Services SubTopic: Widgets & Live Activities Tags:
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136
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Can two NSPanel windows both display active/focused appearance simultaneously on macOS 26?
I'm building a macOS app with two separate NSPanel windows, both using the new liquid glass material (NSVisualEffectView / macOS 26). The UI intentionally has two separate floating panels visible at the same time. The problem: only the key window displays the active liquid glass appearance. The non-key panel always renders with the inactive/foggy appearance, even with: NSWindowStyleMaskNonactivatingPanel canBecomeKeyWindow = false orderFrontRegardless() addChildWindow(_:ordered:) Is there any way — documented or otherwise — to force the active liquid glass appearance on a non-key NSPanel? Or is this fundamentally a compositor-level restriction? If it's impossible with two separate windows, is there an alternative approach to achieve two visually separate liquid glass boxes that both appear active simultaneously?
Topic: UI Frameworks SubTopic: AppKit Tags:
1
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59
2w
Best approach for animating a speaking avatar in a macOS/iOS SwiftUI application
I am developing a macOS application using SwiftUI (with an iOS version as well). One feature we are exploring is displaying an avatar that reads or speaks dynamically generated text produced by an AI service. The basic flow would be: Text generated by an AI service Text converted to speech using a TTS engine An avatar (2D or 3D) rendered in the app that animates lip movement synchronized with the speech Ideally the avatar would render locally on the device. Questions: What Apple frameworks would be most appropriate for implementing a speaking avatar? SceneKit RealityKit SpriteKit (for 2D avatars) Is there any recommended way to drive lip-sync animation from speech audio using Apple frameworks? Does AVSpeechSynthesizer expose phoneme or viseme timing information that could be used for avatar animation? If such timing information is not available, what is the recommended approach for synchronizing character mouth animation with speech audio on macOS/iOS? Are there examples of real-time charact
Topic: Machine Learning & AI SubTopic: Apple Intelligence Tags:
0
0
529
2w
BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: the user taps Stop in the Live Activity the system expires the task due to time expiration the task is terminated due to system resource pressure (CPU, memory, battery, etc.) other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: In the context of
Topic: App & System Services SubTopic: Core OS Tags:
1
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99
2w
BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: • the user taps Stop in the Live Activity • the system expires the task due to time expiration • the task is terminated due to system resource pressure (CPU, memory, battery, etc.) • other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: 1. In the
Topic: App & System Services SubTopic: Core OS Tags:
1
0
79
2w
iOS App Stuck in 'Waiting for Review' for Over 7 Business Days — Expedited Review Submitted, No Progress
Hi, I submitted my iOS app for review on Wednesday, March 4th (around 4 PM UTC+8), and it has been stuck in Waiting for Review for over 7 business days with no progress. I have already submitted an Expedited Review request 2 days ago, but the status remains unchanged. I understand review times can vary, but this extended wait with no movement or communication is making it difficult to plan our launch timeline. Has anyone experienced a similar delay recently? Is there anything else I can do at this point? Any insight would be greatly appreciated. Thank you.
Topic: App Store Distribution & Marketing SubTopic: App Review Tags:
4
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205
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Duplicate Charges on iOS 26.4 Beta - Refund Request Denied
I am currently running iOS 26.4 Beta and have encountered a critical issue with the in-app purchase system. Due to a system malfunction in this beta version, I was charged multiple times for the same purchase. I have already submitted a formal refund request through the official channels; however, the request was rejected/not processed. Has anyone else experienced similar billing issues on this specific beta build? Any advice on how to escalate this, given that the standard refund process has failed?
Topic: App Store Distribution & Marketing SubTopic: App Store Connect Tags:
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76
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App Store Reporting for Auto-Renewable Subscriptions
Hi everyone, I am trying to understand the reporting capabilities available in the iOS ecosystem for auto-renewable subscriptions via App Store Connect / Apple subscription reports. Does Apple provide country-wise active subscriber counts for auto-renewable subscriptions? The requirement is to understand how many currently active subscribers exist in each country. Is there any reporting available at the subscription productID level by country? For example, if we have multiple subscription SKUs (monthly / yearly), can we see the country-wise distribution per productID. In the available reports, are new subscriptions and renewals split separately? We want to differentiate first-time subscription conversions vs recurring renewals. Is there a metric that represents currently active subscriptions at a specific point in time? Most reports seem to show transactions or events, but we are trying to find a metric representing active subscriber base (snapshot) rather than cumulative transactions. Thanks
Topic: App Store Distribution & Marketing SubTopic: App Store Connect
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Reply to On iOS 26, HLS alternate audio track selection behaves inconsistently
Update — Workaround found After further investigation I have found a workaround that resolves the inconsistent track switching behaviour described above. Observation I noticed that changing the order of EXT-X-MEDIA audio entries in the manifest produced different results. Specifically, when the DEFAULT=YES track is listed first, switching behaviour is unreliable. When the DEFAULT=YES track is placed last, switching back to the default language works correctly. Workaround Reorder the EXT-X-MEDIA audio entries so that the DEFAULT=YES rendition appears last in the manifest: #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=de,NAME=Deutsch,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_DEU.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=fr,NAME=Francais,AUTOSELECT=YES,DEFAULT=NO,CHANNELS=2,URI=audio_FRA.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=program_audio,LANGUAGE=en,NAME=English,AUTOSELECT=YES,DEFAULT=YES,CHANNELS=2,URI=audio_ENG.m3u8 In our case the manifest is generated programmatically, so t
Topic: Media Technologies SubTopic: Streaming Tags:
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2w
Static library links on device but fails on iOS Simulator
I’m working on an iOS workspace with: a static library project: M800SDK a test app project: TestAppObj I was able to build M800SDK for iOS Simulator on Apple Silicon as a simulator static library, and I also verified the architectures in the produced .a file. However, when I link the app target against that simulator build and try to build TestAppObj for iOS Simulator, I get the following linker errors: Undefined symbols for architecture arm64: _OBJC_CLASS_$_TokenMngr clang++: error: linker command failed with exit code 1 Additional context: The library links and works correctly when building the app for a physical iPhone. And the public header TokenMngr.h is found correctly by the app target. The app target is compiled as Objective-C++ where needed. The library is linked in the app target under “Link Binary With Libraries”. Could you help me understand: Is it possible to run on iOS Simulator ? the recommended way to package and consume this library for iOS Simulat
Topic: Developer Tools & Services SubTopic: Xcode Tags:
Replies
3
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0
Views
97
Activity
2w
Reply to Recording a Packet Trace
Thank you for the detailed instructions, I still cannot get it to work though. My Mac is running macOS 15.7.4 and my iPhone is on iOS 26.3.1, but step 9 invariably fails. I even tried messing with the system firewall settings, allowing all incoming connections to mitmproxy and disabling the firewall altogether, but still no luck.
Topic: App & System Services SubTopic: Networking Tags:
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Views
Activity
2w
Reply to Partially disable liquid glass effect from navigation bars but retain on tabbar
@Tmmn Add this code to your collectionView or another scrollView-based class: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.style = .hard } If you want even more old-school style: if #available(iOS 26.0, *) { collectionView.topEdgeEffect.isHidden = true } Configure appearance for navigationItem: let appearance = UINavigationBarAppearance() appearance.configureWithDefaultBackground() appearance.backgroundEffect = UIBlurEffect(style: .systemChromeMaterial) navigationItem.standardAppearance = appearance Also it can be configured globally: UINavigationBar.appearance().standardAppearance = appearance
Topic: UI Frameworks SubTopic: UIKit Tags:
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2w
Reply to iOS 26.2 RC DeviceActivityMonitor.eventDidReachThreshold regression?
Thanks a lot for confirming that this is currently investigated! Can you say when this will be addressed? I have reported this horrible regression in iOS 26 beta 1 in June 2025. It’s kinda sad that this didn’t seem to have any priority for Apple to get addressed before the public version was released. In 3 months this bug report will be one year old. [quote='874099022, DTS Engineer, /thread/809410?answerId=874099022#874099022'] This is a known issue that is currently being investigated. If you have already filed a bug report for this issue, thank you. [/quote]
Topic: App & System Services SubTopic: General Tags:
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2w
Instruments Malfunction
I’m reporting a severe reproducible issue in Instruments, specifically when using the SwiftUI instrument and opening Show Cause & Effect Graph. What happens: • Instruments becomes extremely laggy/unresponsive • The graph/detail area can turn solid magenta/pink • Memory usage rapidly increases (I observed around 18 GB, 25 GB, and up to 34 GB) • My Mac has crashed/restarted during this, or in other terms, had a kernel panic, where my Mac froze, and everything unresponsive. The Trackpad wouldn't even click. Important detail: • I could not find a generated kernel panic log after the crash/restart. Repro context: • SwiftUI iOS app profiled from Xcode • Trigger is specifically entering Show Cause & Effect Graph • Recordings can be short and still trigger it • Issue is much less severe or absent if I avoid that view What I already tried: • Rebooting • Short captures / fewer instruments • Clearing Xcode/Instruments caches/preferences • Retesting after cleanup • Reinstalling Xcode Is this a known Inst
Topic: Developer Tools & Services SubTopic: Instruments Tags:
Replies
2
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0
Views
126
Activity
2w
Reliable region monitoring (geofence-based) while app is killed
I am developing an app used by public safety agencies. Part of the app is used to determine live agency staffing using geofences. For example, a geofence exists around a station, and when a user enters or exits that geofence, the app updates the staffing count at that station in real time. The issue I am having is reliably detecting when a user enters or exits the geofence while the app is killed (meaning the user force quit the app from the app launcher). I understand that iOS can relaunch an app in the background if the system terminated the process using Region Monitoring, but I haven't gotten a clear answer about whether or how this is possible if the user kills (force quits) the app. Thank you in advance for your assistance.
Topic: App & System Services SubTopic: Maps & Location Tags:
Replies
1
Boosts
0
Views
238
Activity
2w
Nearby Interaction background ranging with Live Activity (iOS 18.4+)
We are evaluating the new behavior mentioned in the Nearby Interaction documentation for iOS 18.4+, which states: “In iOS 18.4 and later, your app can continue ranging in the background with any supported device if the app starts a Live Activity as it goes to the background. Could you clarify what situations are considered “can continue ranging” versus cases where it will not continue? Specifically, if my app: starts a NISession in the foreground starts a Live Activity with that data then the app goes to background should the NI session still deliver ranging updates so the app can update the Live Activity? also, my app already enable Background Modes capability
Topic: App & System Services SubTopic: Widgets & Live Activities Tags:
Replies
0
Boosts
0
Views
136
Activity
2w
Can two NSPanel windows both display active/focused appearance simultaneously on macOS 26?
I'm building a macOS app with two separate NSPanel windows, both using the new liquid glass material (NSVisualEffectView / macOS 26). The UI intentionally has two separate floating panels visible at the same time. The problem: only the key window displays the active liquid glass appearance. The non-key panel always renders with the inactive/foggy appearance, even with: NSWindowStyleMaskNonactivatingPanel canBecomeKeyWindow = false orderFrontRegardless() addChildWindow(_:ordered:) Is there any way — documented or otherwise — to force the active liquid glass appearance on a non-key NSPanel? Or is this fundamentally a compositor-level restriction? If it's impossible with two separate windows, is there an alternative approach to achieve two visually separate liquid glass boxes that both appear active simultaneously?
Topic: UI Frameworks SubTopic: AppKit Tags:
Replies
1
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0
Views
59
Activity
2w
Best approach for animating a speaking avatar in a macOS/iOS SwiftUI application
I am developing a macOS application using SwiftUI (with an iOS version as well). One feature we are exploring is displaying an avatar that reads or speaks dynamically generated text produced by an AI service. The basic flow would be: Text generated by an AI service Text converted to speech using a TTS engine An avatar (2D or 3D) rendered in the app that animates lip movement synchronized with the speech Ideally the avatar would render locally on the device. Questions: What Apple frameworks would be most appropriate for implementing a speaking avatar? SceneKit RealityKit SpriteKit (for 2D avatars) Is there any recommended way to drive lip-sync animation from speech audio using Apple frameworks? Does AVSpeechSynthesizer expose phoneme or viseme timing information that could be used for avatar animation? If such timing information is not available, what is the recommended approach for synchronizing character mouth animation with speech audio on macOS/iOS? Are there examples of real-time charact
Topic: Machine Learning & AI SubTopic: Apple Intelligence Tags:
Replies
0
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0
Views
529
Activity
2w
BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: the user taps Stop in the Live Activity the system expires the task due to time expiration the task is terminated due to system resource pressure (CPU, memory, battery, etc.) other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: In the context of
Topic: App & System Services SubTopic: Core OS Tags:
Replies
1
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0
Views
99
Activity
2w
BGContinuedProcessingTask expirationHandler — Is there a way to distinguish the stop reason?
We are using BGContinuedProcessingTask on iOS 26 for long-running background video compression and upload. This work usually takes about 30 minutes to 1 hour. In testing on physical devices, expirationHandler is invoked irregularly. In some cases, it seems like it is caused by total task duration, and in other cases, it seems related to system resource conditions such as CPU, memory, or battery. However, even after many experiments, we have not been able to find a clear or consistent pattern. The important problem for us is that we cannot tell why expirationHandler was called. From the app’s perspective, we need to handle the following cases differently: • the user taps Stop in the Live Activity • the system expires the task due to time expiration • the task is terminated due to system resource pressure (CPU, memory, battery, etc.) • other system-driven termination cases However, at the moment, it is difficult or practically impossible to distinguish these cases reliably. My questions are: 1. In the
Topic: App & System Services SubTopic: Core OS Tags:
Replies
1
Boosts
0
Views
79
Activity
2w
iOS App Stuck in 'Waiting for Review' for Over 7 Business Days — Expedited Review Submitted, No Progress
Hi, I submitted my iOS app for review on Wednesday, March 4th (around 4 PM UTC+8), and it has been stuck in Waiting for Review for over 7 business days with no progress. I have already submitted an Expedited Review request 2 days ago, but the status remains unchanged. I understand review times can vary, but this extended wait with no movement or communication is making it difficult to plan our launch timeline. Has anyone experienced a similar delay recently? Is there anything else I can do at this point? Any insight would be greatly appreciated. Thank you.
Topic: App Store Distribution & Marketing SubTopic: App Review Tags:
Replies
4
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0
Views
205
Activity
2w
Duplicate Charges on iOS 26.4 Beta - Refund Request Denied
I am currently running iOS 26.4 Beta and have encountered a critical issue with the in-app purchase system. Due to a system malfunction in this beta version, I was charged multiple times for the same purchase. I have already submitted a formal refund request through the official channels; however, the request was rejected/not processed. Has anyone else experienced similar billing issues on this specific beta build? Any advice on how to escalate this, given that the standard refund process has failed?
Topic: App Store Distribution & Marketing SubTopic: App Store Connect Tags:
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0
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0
Views
76
Activity
2w
App Store Reporting for Auto-Renewable Subscriptions
Hi everyone, I am trying to understand the reporting capabilities available in the iOS ecosystem for auto-renewable subscriptions via App Store Connect / Apple subscription reports. Does Apple provide country-wise active subscriber counts for auto-renewable subscriptions? The requirement is to understand how many currently active subscribers exist in each country. Is there any reporting available at the subscription productID level by country? For example, if we have multiple subscription SKUs (monthly / yearly), can we see the country-wise distribution per productID. In the available reports, are new subscriptions and renewals split separately? We want to differentiate first-time subscription conversions vs recurring renewals. Is there a metric that represents currently active subscriptions at a specific point in time? Most reports seem to show transactions or events, but we are trying to find a metric representing active subscriber base (snapshot) rather than cumulative transactions. Thanks
Topic: App Store Distribution & Marketing SubTopic: App Store Connect
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0
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27
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