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iPhone 16 pro

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Crash in libquic.dylib when app is backgrounded and issues an HTTP/3 request on iOS 26
Title / Summary Crash in libquic.dylib when app is backgrounded and issues an HTTP/3 request Description On iOS 26, the app crashes inside libquic.dylib while performing a network request using HTTP/3 (QUIC) after the app has moved to the background. The crash happens within low-level QUIC / libquic internals. Reproduction Steps Launch the app, perform normal operations. Background the app (press home / switch away). While in background, trigger a network request that uses HTTP/3 / QUIC. Observe that the app crashes (stack trace pointing into libquic.dylib). Expected Behavior The HTTP/3 request in background should either be handled gracefully (fail or complete) without causing a crash; the app must not be terminated due to internal libquic failures. Actual Behavior The app crashes with signals/exceptions coming from libquic.dylib (in the QUIC / packet building / encryption / key state logic) when a HTTP/3 request is made in background. Environment / Device Information • OS: iOS 26 • Device: iPhone 1
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Reply to iPhone17 bluetooth background scanning issue
@Engineer https://developer.apple.com/documentation/corebluetooth/cbcentralmanagerdelegate/centralmanager(_:diddiscover:advertisementdata:rssi:) optional func centralManager( _ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber ) On iPhone 17, this method does not work when the app enters the background.
Topic: App & System Services SubTopic: Core OS Tags:
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Separate iPhone and iPad apps from each other Xcode
Without knowing is how two apps shares the resources. The problem is both are designed to be landscape with all screen orientations the same. The validated ipad process fails that it must have both the same screen orientations as the iPhone. The iPad app review fails in Apple Connect, with screen shots portrait clipped. Yet the iPhone was accepted with the same orientations. They both start in portrait which is ok, just turn them to landscape and they look fine. I have seen many apps that go back and forth and you know which orientation you want. Just turn 90 degrees. Is there a resolution to this situation? Charlie Coupe
Topic: UI Frameworks SubTopic: General
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Image Miniaturization Issue
I have three toolbar buttons with images from Assets.xcassets. Initially, I didn't use @1x, @2x, @3x sizes. I just put one size (72 x 72) for all of them. It was never a problem till a few days ago. The reviewer has reported numerous issues, which all seem to originate from miniaturized toolbar images. They have given me a screenshot from an iPad. Now, each of the three to the left has shrunken to 4 x 4, according to them. Some lines of code are the following. import SwiftUI struct ContentView: View { var body: some View { NavigationStack { ZStack { VStack { ... ... ... } .background(.brown) .navigationBarTitleDisplayMode(.inline) .navigationBarItems( leading: HStack(content: { Button { } label: { Image(ToolbarImage1) .resizable() .foregroundColor(.red) .aspectRatio(contentMode: .fit) .frame(width: 28) } Button { } label: { Image(ToolbarImage2) .resizable() .foregroundColor(.cyan) .aspectRatio(contentMode: .fit) .frame(width: 28) } Button { } label: { Image(ToolbarImage3) .resizable() .foregroundColor(.gray)
Topic: UI Frameworks SubTopic: SwiftUI
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macOS 26 adds image to NSMenuItem on its own
In my Mac app, there is a menu item whose title is Copy, and another called Zoom to Marker. Apparently appkit sees fit to inject its own images into these items (off-state images I suppose). Why it was consider a good idea to begin with is unclear, because how can you be sure these images are appropriate? If that wasn't bad enough, the framework does not even check that these menu items already have off state images. So now the menu items get two images! How do I prevent this? Note: I use Xcode 16.
Topic: UI Frameworks SubTopic: AppKit
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iOS 26 - S/MIME Encryption / Certificates
Hi everyone. Since the update to iOS 26, we are no longer able to tap the person's name and view the certificate of a signed email and choose to install the certificate or remove it. This has always worked just fine but seems to be broken on iOS 26 and I have verified that it does not work on iOS 26.1 beta as well. The part that is strange is it does work just fine on an iPad running iPad OS 26. This makes it impossible to send encrypted emails to someone via the mail app on an iPhone. I have found a temporary workaround which is to install Outlook for iOS and install the certificates through that app which then allows me to send encrypted emails via Outlook. This appears to be a bug just with the iPhone as I have also seen a few other people online talking about the same problem. Has anyone found a solution to this?
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Possible to bring back "Time in Bed" iOS feature?
I have an iPhone 11 Pro Max running iOS 26. But since iOS 18, Apple decided to remove the Time in Bed feature[1][2]. Is it possible to develop an app that, effectively, brings back this feature? It doesn't have to be that accurate. Just a gauge is fine. As a starter I would like to track the time the phone was in Sleep mode (regardless whether the phone is being used). I have a minimal programming background but have not developed an iOS app before so any help would be appreciated. I found out about HealthKit[3] which lets me access (edit?) Health data, but I don't know where to go from there. [1] https://www.reddit.com/r/iOSBeta/comments/1em8bl6/ios_181_db1_time_in_bed_via_iphone_feature_removed [2] https://www.reddit.com/r/ios/comments/1fkjat4/apple_removed_the_iphoneonly_sleep_tracking [3] https://developer.apple.com/documentation/healthkit
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Unable to launch any simulators in Xcode, XPC error talking to liblaunch_sim.dylib could not be opened
Hello, been beating my head against the wall for a few days with this. Originally got the error in Xcode 16, through the course of troubleshooting uninstalled and reinstalled Xcode multiple times, upgraded Xcode to 23 - same result. Create a different user on my computer and try, same result. Xcode > Settings > Components show both iOS 26.0 and iOS18.6 simulator, however no simulators show in Xcode, and Xcode hangs when you try to create one. 'xcrun simctl list runtimes' shows this: iOS 18.6 (18.6 - 22G86) - com.apple.CoreSimulator.SimRuntime.iOS-18-6 (unavailable, liblaunch_sim.dylib could not be opened) iOS 26.0 (26.0 - 23A343) - com.apple.CoreSimulator.SimRuntime.iOS-26-0 (unavailable, liblaunch_sim.dylib could not be opened). Does anyone have any ideas on what the issue could be?
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ShazamKit for Android and 16 KB native library alignment
Hello, I'm working on a Flutter app targeting both Android and iOS, where I implemented ShazamKit. In order to achieve that, I first tried with the flutter_shazam_kit package, but since it's not maintained anymore, I forked it here, and tried to update it to meet the Google Play Store requirements, as you can see here: https://github.com/mregnauld/flutter_shazam_kit/tree/fix-16k Unfortunately, after trying everything, my app still doesn't meet the (not so) new 16 KB native library alignment. Also, I'm 100% sure it comes from that because the error message disappears if I remove that package from my app. So after investigating, it seems that the problem comes from the ShazamKit for Android (that you can find here: https://developer.apple.com/download/all/?q=Android%20ShazamKit), and especially the .so files in the .aar file. Is there anything I can do to fix that, or should I wait before the ShazamKit team fix that? I'm totally stuck with that so any help is highly appreciated. Thanks.
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macOS 26.0 Tahoe + Xcode 26.0.1 Simulator causes system-wide audio distortion
After upgrading to macOS 26.0 Tahoe and Xcode 26.0.1, I’ve noticed an issue with audio playback whenever the iOS Simulator is running. Device: MacBook Pro 13 (2020, Intel, 16GB RAM, 500GB SSD) Issue: Any sound played on the Mac (system sounds, music, videos) begins to break/distort once the Simulator is active. App Sounds: If the app running inside the Simulator plays audio, that audio also breaks/distorts. Previous Version: This issue did not occur on macOS Sequoia 15 or with Xcode 16. Everything was working fine before the upgrade.
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Wi-Fi Aware Building peer-to-peer app sample app Error
We are using wifi_aware demo at https://developer.apple.com/documentation/wifiaware/building-peer-to-peer-apps. We use iPhone 16 with ios26 to install this app successfully for the first time. After then we want to remove some paired devices, but the function used to delete paired device is not founded. So we uninstall the app, and intend to install it again. This time, it jump to the interface displaying the message This device does not support Wi-Fi Aware. We are confused by this and don't know what to do. Instead of using other devices, how can we successfully install the app on this device. The iphone, Apple computer and Xcode environment maintain the same for sure. We sincerely appreciate your reply.
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ICDeviceBrowser authorization requests always return ICAuthorizationStatusNotDetermined on iOS 26.1 beta
Area ImageCaptureCore / ICDeviceBrowser Description On iOS 26.1 beta, calling requestControlAuthorization() requestContentsAuthorization() always returns .notDetermined and never transitions to .authorized or .denied. This prevents apps from properly accessing device control or contents authorization. The issue occurs regardless of device state or prior requests. Steps to Reproduce 1. Create and start an ICDeviceBrowser instance. 2. Call requestControlAuthorization() or requestContentsAuthorization(). 3. Inspect the returned ICAuthorizationStatus. Expected Result • The system should prompt the user if necessary. • A final status of either .authorized or .denied should be returned. Actual Result • The completion handler always reports .notDetermined. • No user prompt appears and the status does not change. Version / Build • iOS 26.1 beta • Xcode Hardware • [iPhone 15 Pro, iPad Pro (M2)] Impact This regression blocks development and testing of features relying on ImageCaptureCore. App
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Reply to iOS blocks 100% notification for app in the background
Unfortunately, no — I haven’t found any solution. An Apple engineer helped determine that this is indeed an iOS issue: background notifications are received by my app, but they are forcibly dropped by the system. Apparently, there was no deadline set for this state in my iOS, so my app was punished indefinitely. It lasted for 2 months. The case itself was forwarded (by the Apple engineer) to the iOS Notifications team at Apple about a month ago, but they haven’t contacted me. In the meantime, I tried uninstalling the app, resetting the iPhone (from Settings), and upgrading the system several times (including to iOS 26). More recently, I uninstalled the app for 1 week, hoping to give the system time to “forget it” (I had no idea if this would help, but being permanently blocked doesn’t make sense either, right?). After that, I installed beta 26.1 and reinstalled the app, but nothing worked. Finally, I tried the ultimate solution: “Erase All Content and Settings” from iPhone settings. This wor
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