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I am exploring on managing state in SwiftUI app with purpose built Views due to the advantages for managing dependency with Environment.
This is the minimal example I came up with:
@MainActor
struct AsyncStateModifier<T: Equatable>: View {
let input: T
let action: (T) async -> Void
@Environment var queue: AsyncActionQueue
var body: some View {
return EmptyView()
.onChange(of: input, initial: true) { old, new in
queue.process(action: action, with: input)
}
}
}
The drawback of this approach is initial: true allows the onChange callback to fire when view appears and since EmptyView doesn't appear the action is never executed initially.
When replacing EmptyView with Rectangle().hidden() this can be achieved, but I wanted to avoid having any impact on view hierarchy and EmptyView is suitable for that. Is there any alternative approach to make something like this possible?
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We are trying to diagnose an issue with our VPN network extension but have discovered that the VPN logging profile, available on the Apple Developer website is not valid:
We have tried installing it on multiple phones, including the latest version of iOS 17 with no success so far.
We would appreciate if the profile could be updated as soon as possible.
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This is crash stack. What caused this crash? How to solve it?
Date/Time: 2024-05-17 11:12:48.0370 +0800
Launch Time: 2024-05-17 11:12:28.4598 +0800
OS Version: iPhone OS 17.4.1 (21E236)
Release Type: User
Baseband Version: 3.50.04
Report Version: 104
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x00000001aee09920
Triggered by Thread: 0
Kernel Triage:
VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter
Thread 0 Crashed:
0 libdispatch.dylib 0x00000001aee09920 _dispatch_lane_resume + 712 (queue.c:3284)
1 CoreFoundation 0x00000001a6f357a8 __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 148 (CFNotificationCenter.c:700)
2 CoreFoundation 0x00000001a6f35170 ___CFXRegistrationPost_block_invoke + 88 (CFNotificationCenter.c:193)
3 CoreFoundation 0x00000001a6f350b8 _CFXRegistrationPost + 440 (CFNotificationCenter.c:221)
4 CoreFoundation 0x00000001a6f34608 _CFXNotificationPost + 728 (CFNotificationCenter.c:1247)
5 Foundation 0x00000001a5dc6f10 -[NSNotificationCenter postNotificationName:object:userInfo:] + 92 (NSNotification.m:531)
6 UIKitCore 0x00000001a930f04c -[UIApplication _sendWillEnterForegroundCallbacks] + 212 (UIApplication.m:11709)
7 UIKitCore 0x00000001a930d7cc __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke_2 + 1272 (_UISceneLifecycleMultiplexer.m:653)
8 UIKitCore 0x00000001a930d298 _UIScenePerformActionsWithLifecycleActionMask + 112 (_UISceneLifecycleState.m:109)
9 UIKitCore 0x00000001a9393934 __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke + 216 (_UISceneLifecycleMultiplexer.m:566)
10 UIKitCore 0x00000001a92bcac4 -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] + 220 (_UISceneLifecycleMultiplexer.m:515)
11 UIKitCore 0x00000001a92bb53c -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 608 (_UISceneLifecycleMultiplexer.m:565)
12 UIKitCore 0x00000001a92baea4 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] + 248 (_UISceneLifecycleMultiplexer.m:468)
13 UIKitCore 0x00000001a92bad74 __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block... + 148 (_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction.m:73)
14 UIKitCore 0x00000001a92bac7c +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:fromCurrentState:actions:completion:] + 736 (BSAnimationSettings+UIKit.m:54)
15 UIKitCore 0x00000001a92ba504 _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion + 224 (_UISceneSettingsDiffAction.m:27)
16 UIKitCore 0x00000001a92ba1b4 -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] + 316 (_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction.m:58)
17 UIKitCore 0x00000001a964ae20 __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke.226 + 612 (UIScene.m:2067)
18 UIKitCore 0x00000001a92b9328 -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] + 216 (UIScene.m:1736)
19 UIKitCore 0x00000001a92b9198 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] + 244 (UIScene.m:2026)
20 UIKitCore 0x00000001a92b8fd8 -[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:] + 336 (UIApplicationSceneClientAgent.m:86)
21 FrontBoardServices 0x00000001bfaeb524 -[FBSScene updater:didUpdateSettings:withDiff:transitionContext:completion:] + 660 (FBSScene.m:812)
22 FrontBoardServices 0x00000001bfaeb270 __94-[FBSWorkspaceScenesClient _queue_updateScene:withSettings:diff:transitionContext:completion:]_block_invoke_2 + 152 (FBSWorkspaceScenesClient.m:692)
23 FrontBoardServices 0x00000001bfaeb10c -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 168 (FBSWorkspace.m:411)
24 FrontBoardServices 0x00000001bfaeb028 __94-[FBSWorkspaceScenesClient _queue_updateScene:withSettings:diff:transitionContext:completion:]_block_invoke + 344 (FBSWorkspaceScenesClient.m:691)
25 libdispatch.dylib 0x00000001aee02dd4 _dispatch_client_callout + 20 (object.m:576)
26 libdispatch.dylib 0x00000001aee0686c _dispatch_block_invoke_direct + 288 (queue.c:511)
27 FrontBoardServices 0x00000001bfae7490 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 52 (FBSSerialQueue.m:285)
28 FrontBoardServices 0x00000001bfae7410 -[FBSMainRunLoopSerialQueue _targetQueue_performNextIfPossible] + 240 (FBSSerialQueue.m:309)
29 FrontBoardServices 0x00000001bfae72e8 -[FBSMainRunLoopSerialQueue _performNextFromRunLoopSource] + 28 (FBSSerialQueue.m:322)
30 CoreFoundation 0x00000001a6f3d62c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1957)
31 CoreFoundation 0x00000001a6f3c8a8 __CFRunLoopDoSource0 + 176 (CFRunLoop.c:2001)
32 CoreFoundation 0x00000001a6f3b058 __CFRunLoopDoSources0 + 244 (CFRunLoop.c:2038)
33 CoreFoundation 0x00000001a6f39d88 __CFRunLoopRun + 828 (CFRunLoop.c:2955)
34 CoreFoundation 0x00000001a6f39968 CFRunLoopRunSpecific + 608 (CFRunLoop.c:3420)
35 GraphicsServices 0x00000001eb22f4e0 GSEventRunModal + 164 (GSEvent.c:2196)
36 UIKitCore 0x00000001a93acedc -[UIApplication _run] + 888 (UIApplication.m:3692)
37 UIKitCore 0x00000001a93ac518 UIApplicationMain + 340 (UIApplication.m:5282)
38 VRCapture 0x00000001045ac3a4 main + 84 (main.m:33)
39 dyld 0x00000001ca45ad84 start + 2240 (dyldMain.cpp:1298)
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Hello everyone,
I am developing a feature in my app where, upon receiving a push notification, the app should open automatically if it is closed and the screen is locked. If the device is unlocked, a persistent notification should appear and only be removed with user interaction.
We managed to implement this functionality on Android using some configurations and additional rules. With this, upon receiving a push notification, the app opens automatically or a permanent notification appears.
I would like to know how I can implement this functionality on iOS using Swift. Is there any specific configuration or API that allows the app to open automatically upon receiving a push notification or to display a persistent notification on the unlocked screen?
Thanks in advance for your help!
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Please help with the code to get version of specific installed app on iPhone.
I am basically android developer and new to iOS development.Kindly help me.
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I'm experiencing an issue with WKWebView and localStorage. I've set up a standard WKWebView with the configuration:
configuration.websiteDataStore = WKWebsiteDataStore.default()
Everything works fine in the emulator (iOS 16.x, 17.0), but on my iPhone 13 running iOS 17.4, I encounter a problem. When I set a localStorage value on my local HTML page, navigate to another URL within the webview, and then return to the original page, the localStorage is cleared. This behavior is new and wasn't happening before. Has anyone else encountered this or have any suggestions on how to fix it? The localstorage should be persistent as it always has been.
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Hello,
We're developing a framework that needs to talk to a camera on iOS. We've written a Driverkit Extension to enable this but we're having trouble working out how to distribute this to third parties.
We have to specify the application's bundle id in the driverkit's bundle ID. But as far as I can tell that means if there are multiple consumers, they each need their own specially built driverkit extension.
For MacOS, we can see an entitlement that allow any 'user client' to connect to our driverkit extension. But from what I can tell, that doesn't seem to be the same for iOS.
Am I missing something? Or is it expected that we should have to build a new driverkit extension with a different bundle ID for every app that every third party wants to develop?
Let me know if I'm missing too much context, thanks in advance!
Post not yet marked as solved
We are considering raising the age rating of our existing app. Currently, the app is rated 4+, but we are looking into raising it to 12+. We have some questions regarding this change and would appreciate your guidance:
For users under 12 years old (below the specified age) who have already installed the app:
Will they still be able to use the app as before?
Will they be unable to receive updates?
For users under 12 years old (below the specified age) accessing the App Store:
How will the app appear to them?
Will it become invisible in the App Store for them?
Thank you for your assistance.
Post not yet marked as solved
Hi, When I uploaded 2 videos in the Event Card Video, and Event Details Page Video section of a new In-App Event, both are showing processing for a long time. I'm trying to upload videos for the first time in an in-app event, is it normal to take longer time on video processing? The video dimension is 1920x1080 with 30fps for the event card video, and 1080x1920 with 30fps for the event details page video.
Please let me know if you have any tips.
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Hello, I'm currently integrating a feature in our app that allows customers to set up a passkey. Once set up, users are prompted to use their passkey at the sign-in page. For users without a registered passkey, we ensure that the passkey assertion request fails silently to maintain a smooth login experience, using preferImmediatelyAvailableCredentials effectively for this purpose.
However, we've noticed that when users are employing third-party password managers like 1Password or Bitwarden, they encounter a QR code fallback. Discussions with 1Password have revealed that iOS does not currently extend preferImmediatelyAvailableCredentials to these services.
I would appreciate any advice on how to harmonize the behavior between iCloud Keychain and third-party password providers to ensure a consistent user experience.
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Hello,
I'm facing an issue with the volume slider in AVPlayer. Despite setting the volume property and mute property to false, the volume slider does not work as expected.
Initially, the volume is muted with the slider set to the minimum. If I change the volume, when I release the slider, it returns to the minimum and the mute icon remains active. However, if I set it to maximum, the setting remains and the icon changes. However, the video volume never changes and remains at the value set in the code.
Here is the code I am using:
var player: AVPlayer!
var playerController: AVPlayerViewController!
override func viewDidLoad() {
super.viewDidLoad()
player = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "video", ofType: "mp4")!))
player.volume = 0.5
player.isMuted = false
playerController = AVPlayerViewController()
playerController.player = player
playerController.view.frame = self.view.frame
addChild(playerController)
view.addSubview(playerController.view)
playerController.view.frame = view.bounds
playerController.didMove(toParent: self)
player.play()
}
Can someone please help me resolve this issue? Any assistance would be greatly appreciated.
Thank you.
When I run my app in debug mode, whenever a time consuming task is run (like a core data fetch request) there is a time indication appearing on top of the view. I am unable to find the meaning of this and how it is named.
It looks like:
"appName NNNN ms"
(it is not caught by the screen shot)
Can someone tell if it is possible to get rid of it and how ? Thanks for your help !
Starting on Xcode 15.3 and 15.4 my SwiftUI Previews stopped working with the following error:
== PREVIEW UPDATE ERROR:
LinkDylibError: Failed to build ContentView.swift
Linking failed: linker command failed with exit code 1 (use -v to see invocation)
ld: warning: search path '/Applications/Xcode.app/Contents/SharedFrameworks-iphonesimulator' not found
Undefined symbols for architecture arm64:
"static MyLibrary.DisplayUtil.getText() -> Swift.String", referenced from:
closure #1 () -> SwiftUI.Text in (extension in Demo_Broken_Preview_PreviewReplacement_ContentView_1):Demo_Broken_Preview.ContentView.(__preview__body in _1BA320C8FB5388C953E1E463345C3D72).getter : some in ContentView.1.preview-thunk.o
"type metadata accessor for MyLibrary.DisplayUtil", referenced from:
closure #1 () -> SwiftUI.Text in (extension in Demo_Broken_Preview_PreviewReplacement_ContentView_1):Demo_Broken_Preview.ContentView.(__preview__body in _1BA320C8FB5388C953E1E463345C3D72).getter : some in ContentView.1.preview-thunk.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
After much trial and error, I narrowed it down to my SwiftUI views using properties or functions inside components in Swift Packages.
This is a simple example of my Swift Package:
public class DisplayUtil {
public func getText() -> String {
return "Text"
}
public static func getText() -> String {
return "Text"
}
}
And my SwiftUI View
import SwiftUI
import MyLibrary
struct ContentView: View {
var body: some View {
VStack {
Text(DisplayUtil.getText())
}
.padding()
}
}
#Preview {
ContentView()
}
The same code works fine on Xcode 15.2
Link to the sample project:
https://www.icloud.com/iclouddrive/0c00AD0esi2PwqqiRggokfwGw#Demo%5FBroken%5FPreview
Is anybody else having a similar issue?
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I am developing an iOS app that utilizes the timeInDaylight data from HealthKit. This feature is available starting from iOS 17.0+, but it can only be recorded using the Apple Watch SE (2nd generation) and Apple Watch Series 6 or later.
How should I release this app given its dependency on timeInDaylight data? Without this data, the app is useless.
I understand that the App Store does not allow setting specific health data requirements. I am also concerned that including a "device requirements" warning in the App Store description might not pass the review process.
Could you provide any advice on how to approach this situation?
Thank you.
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I have recently submitted a new app version to the Appstore with Xcode 15.0. Unfortunately, I have started to see the below crash in the Xcode organiser > Crashes section occurring for more number of times.
UIKitCore: +[UIAlertController _alertControllerContainedInViewController:] + 160
The exception trace is not leading to main() function but not pointing to any of the code line. I had used UIAlertController in the past versions to show the alerts but there is no code written in the current version code related to UIAlertController. Only from the latest version, this kind of crash started to surface.
In the latest release, We have added a third party SDK and while implementing the SDK, we had added the Location and Bluetooth Permissions in Info.plist file. But as we don't want to use/track the Location and Bluetooth details from the app, the SDK team has disabled the Location and Bluetooth settings to not reflect in the tracked data.
Is this behaviour creating any conflict with the UIAlertController and logging the crash? Because by default the OS tries to show the alert when the permissions exist in the plist file, but the alert will not come as the service is disabled on the SDK server settings. Is this creating any conflict and logging the crash.
Please extend your help.
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Hello, I want to use universal links in my application, for which I need to get the TeamID and BundleId, for apple-app-site-association file. Can you please tell me, do I have to buy an Apple Developer Account at the time of development to do this, or can I get it all for free at the time of development?
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iMessage sometimes does not show Firebase Dynamic Link preview, while other apps like Messenger or Slack always work. I don't know if it is because of Firebase or the image itself, as there are some images which do show up in preview and some images don't.
If anyone has any clue, please let me know. Thanks!
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We are facing issues since we shifted our react native iOS project from sdk 16 to sdk 17. While we are still able to build our app but there are some issues with our app’s functionality. Did any one else face similar challenges? We are on react-native version 0.71.8
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I tried to enroll Apple Developer Program but after the consent page it always show this "Your enrollment in the Apple Developer Program could not be completed at this time.". Please help me to fix this problem. Thank you!!
