Hello everyone, I'm developing a radio app and I want to add CarPlay. Before starting the program I requested all the necessary permissions and they were accepted. Now when I run the app, emulate CarPlay and try to access the app, it crashes and gives me this log: *** Terminating app due to uncaught exception 'NSGenericException', reason: 'Application does not implement CarPlay template application lifecycle methods in its scene delegate.' *** First throw call stack: ( 0 CoreFoundation 0x00000001804b70ec __exceptionPreprocess + 172 1 libobjc.A.dylib 0x000000018008ede8 objc_exception_throw + 72 2 CoreFoundation 0x00000001804b6ffc -[NSException initWithCoder:] + 0 3 CarPlay 0x00000001bc830ee8 -[CPTemplateApplicationScene _deliverInterfaceControllerToDelegate] + 704 4 CarPlay 0x00000001bc82fa60 __64-[CPTemplateApplicationScene initWithSession:connectionOptions:]_block_invoke.4 + 116 5 CoreFoundation 0x00000001803e9aec CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER + 120 6 CoreFoundation 0x00000001803e9a24 ___CFXRegistrationPost_block_invoke + 84 7 CoreFoundation 0x00000001803e8f14 _CFXRegistrationPost + 404 8 CoreFoundation 0x00000001803e88f0 _CFXNotificationPost + 688 9 Foundation 0x0000000180ee2350 -[NSNotificationCenter postNotificationName:object:userInfo:] + 88 10 UIKitCore 0x0000000184f0a8e4 +[UIScene _sceneForFBSScene:create:withSession:connectionOptions:] + 1152 11 UIKitCore 0x0000000185aa445c -[UIApplication _connectUISceneFromFBSScene:transitionContext:] + 808 12 UIKitCore 0x0000000185aa470c -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 304 13 UIKitCore 0x0000000185573c08 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 260 14 FrontBoardServices 0x0000000187994ce4 __95-[FBSScene _callOutQueue_didCreateWithTransitionContext:alternativeCreationCallout:completion:]_block_invoke + 260 15 FrontBoardServices 0x00000001879950a4 -[FBSScene _callOutQueue_coalesceClientSettingsUpdates:] + 60 16 FrontBoardServices 0x0000000187994b64 -[FBSScene _callOutQueue_didCreateWithTransitionContext:alternativeCreationCallout:completion:] + 408 17 FrontBoardServices 0x00000001879c1d50 __93-[FBSWorkspaceScenesClient _callOutQueue_sendDidCreateForScene:transitionContext:completion:]_block_invoke.156 + 216 18 FrontBoardServices 0x00000001879a1618 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 160 19 FrontBoardServices 0x00000001879c0220 -[FBSWorkspaceScenesClient _callOutQueue_sendDidCreateForScene:transitionContext:completion:] + 388 20 libdispatch.dylib 0x0000000103e127b8 _dispatch_client_callout + 16 21 libdispatch.dylib 0x0000000103e163bc _dispatch_block_invoke_direct + 388 22 FrontBoardServices 0x00000001879e4b58 FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK + 44 23 FrontBoardServices 0x00000001879e4a34 -[FBSMainRunLoopSerialQueue _targetQueue_performNextIfPossible] + 196 24 FrontBoardServices 0x00000001879e4b8c -[FBSMainRunLoopSerialQueue _performNextFromRunLoopSource] + 24 25 CoreFoundation 0x000000018041b324 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 24 26 CoreFoundation 0x000000018041b26c __CFRunLoopDoSource0 + 172 27 CoreFoundation 0x000000018041a9d0 __CFRunLoopDoSources0 + 232 28 CoreFoundation 0x00000001804150b0 __CFRunLoopRun + 788 29 CoreFoundation 0x0000000180414960 CFRunLoopRunSpecific + 536 30 GraphicsServices 0x0000000190183b10 GSEventRunModal + 160 31 UIKitCore 0x0000000185aa2b40 -[UIApplication _run] + 796 32 UIKitCore 0x0000000185aa6d38 UIApplicationMain + 124 33 SwiftUI 0x00000001d1e2eab4 $s7SwiftUI17KitRendererCommon33_ACC2C5639A7D76F611E170E831FCA491LLys5NeverOyXlXpFAESpySpys4Int8VGSgGXEfU_ + 164 34 SwiftUI 0x00000001d1e2e7dc $s7SwiftUI6runAppys5NeverOxAA0D0RzlF + 84 35 SwiftUI 0x00000001d1b70c8c $s7SwiftUI3AppPAAE4mainyyFZ + 148 36 streamz.debug.dylib 0x0000000106148e98 $s7streamz7StreamzV5$mainyyFZ + 40 37 streamz.debug.dylib 0x0000000106148f48 __debug_main_executable_dylib_entry_point + 12 38 dyld 0x00000001032d9410 start_sim + 20 39 ??? 0x000000010301a274 0x0 + 4345406068 I also get this error in the 'App' protocol: Thread 1: "Application does not implement CarPlay template application lifecycle methods in its scene delegate." If you need anything specific to figure out what it's about, I'll be happy to help.

Hello, I have encountered a question that I hope to receive an answer to. Currently, I am working on a music project for Mac Catalyst and need to enable music files such as FLAC to be opened by right clicking to view my Mac Catalyst app. But currently, I have encountered a problem where I can see my app option in the right-click open mode after debugging the newly created macOS project using the following configuration. But when I created an iOS project and converted it to a Mac Catalyst app, and then modified the info.plist with the same configuration, I couldn't see my app in the open mode after debugging. May I ask how to solve this problem? Do I need to configure any permissions or features in the Mac Catalyst project? I have been searching for a long time but have not found a solution regarding it. Please resolve it, thank you. Here is the configuration of my macOS project: CFBundleDocumentTypes CFBundleTypeExtensions flac CFBundleTypeIconSystemGenerated 1 CFBundleTypeName FLAC Audio File CFBundleTypeRole Viewer LSHandlerRank Default Note: Sandbox permissions have been enabled for both the macOS project and the iOS to Mac Catalyst project. The Mac Catalyst project also has additional permissions for com. apple. security. files. user taught. read write

I released an app for iPhone (and it's could be downloaded for iPad also), and now I developered another app for iPad version with the same code and logic but I modified the layout to fit bigger screen and make better user experience and appearance. Howevert the app review rejected my release due to the duplicate content, how can I solve it?

I want to add the option to choose an alternative icon inside the app. Is there a way to load an icon asset from within the app? I downloaded Apple’s alternative icon sample, which is supposed to show a list of icons to choose from, but even in the sample, it did not work. So the current solution is to add every alternative icon along with another image asset of the same image to display to the user. This sounds like a waste of bytes. Thank you in advance for any help.

Hello, community, I'm using an HTML editor in a .NET MAUI application running on macOS, and I'm encountering some unexpected behavior during text editing: Double-click text selection disappears after approximately one second. Styles randomly revert or are applied to the wrong text unexpectedly. It appears to be related to macOS spell checking. When using editable elements (, or with contenteditable), the system enables spell checking by default. During this, MAUI attempts to communicate with a system process: com.apple.TextInput.rdt, which is not running, leading to repeated errors like: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.TextInput.rdt was invalidated: failed at lookup with error 3 - No such process." Question: What is com.apple.TextInput.rdt, and why might it not be running? Thank you for any help!

Hi, I have an existing Mac app on the App Store with a couple of widgets as part of the app. I want to now add a new widget to the WidgetBundle. When I build the updated app with Xcode, and then run the updated app, the widgets list doesn't seem to get updated in Notification Center or in the WidgetKit Simulator. I do have the App Store version installed in the /Applications folder as well, so there might be some conflict. What's the trick to getting the widgets list to run the debug version?

My main app does have entitlement to access Coretelphony, i would like to use the same with Appclips, though i was able to add the entitlement to appclip profile, i am unable to create archive for Testflight, i am seeing missing esim profile capabilities, is this not supported in appclips at the moment?

App update in which there were no changes regarding the widget. Just after it updated, the widget turns black in some cases. It also appears black in the widget gallery. Removing and adding it again did not work in this case, only after an iOS restart it works fine again This is the log 2025-03-20 02:14:05.961611 +0800 Content load failed: unable to find or unarchive file for key: [com.aa.bb::com.aa.bb.widget:cc_widget:systemMedium::360.00/169.00/23.00:(null)~(null)] on no host. The session may still produce one shortly. Error: Using url file:///private/var/mobile/Containers/Data/PluginKitPlugin/51C5E4F2-6F1F-4466-A428-73C73B9CC887/SystemData/com.apple.chrono/placeholders/cc_widget/systemMedium----360.00w--169.00h--23.00r--1f--0.00t-0.00l-0.00b0.00t.chrono-timeline ... Error Domain=NSCocoaErrorDomain Code=4 "file“systemMedium----360.00w--169.00h--23.00r--1f--0.00t-0.00l-0.00b0.00t.chrono-timeline”not exist。" UserInfo={NSFilePath=/private/var/mobile/Containers/Data/PluginKitPlugin/51C5E4F2-6F1F-4466-A428-73C73B9CC887/SystemData/com.apple.chrono/placeholders/cc_widget/systemMedium----360.00w--169.00h--23.00r--1f--0.00t-0.00l-0.00b0.00t.chrono-timeline, NSUnderlyingError=0xa693d3a80 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

I have DNG files that I want to open and show as EDR content in my app. It seems like the DNG files should have enough per pixel information to show more colors that Display P3 but whenever I load the images using CIRawFilter and then inspect the outputImage color space it is always "DisplayP3", not something like "ITU-R BT.2100 PQ" there doesn't seem to be any way to make it load with a different color space for displaying EDR images. Does this make sense for DNG files, it seems like it should? If I open the same file using CIImage with the expandToHDR option e.g. CIImage(contentsOf: rawURL, options: [.expandToHDR: true]) then it does have the desired EDR color space, but then I don't get any of the properties that are available via the CIRAWFilter class to manipulate the data. Basically I just want to be able to open the DNG file via CIRAWFilter and then display it in my SwiftUI app as an EDR image by adding the allowedDynamicRange(.high) property. Image("my-dng-image").allowedDynamicRange(.high) Or do DNG files (just RAW not ProRAW) not contain enough information to be displayed as EDR images, seems like they should.

Since beta 4, Using TipKit causes the app to crash. This was not the case in Beta 3. My app uses UIKit

I recently updated my 16 pro to the latest software 18.4 developer beta. One issue i have encounter is that my always on display is not on or running in the background even tho the toggle option is ON. To fix this I have to go back to the setting and toggle the option back off and on.

I want to keep the sidebar fixed in NavigationSplitView. I don’t want the user to be able to open or close the sidebar. I removed the toggle button, but I still couldn’t make the sidebar stay fixed. It can still be closed using Cmd + Alt + S or by dragging. What I want is just to disable the resize feature of the sidebar. Isn’t it possible with SwiftUI? NavigationSplitView is kind of blackhole :) LeftSidebarView() .environmentObject(detailView) .toolbar(removing: .sidebarToggle) .navigationSplitViewColumnWidth(240)

Hello, I'm currently coding a productivity app which help user to focus while studying through restricting access to website and app they have selected, however for now, they can really easily make this uselles trhough quitting the app using command + Q or force quit the app in the activity monitor. Do you know how could I block user to quit the app while she is running, and it is allowed by apple guideline ?

Hello, I’m developing an app where I display a SwiftUI view inside a UIHostingController embedded within a UIKit ViewController. I’m trying to animate the height of the UIHostingController’s view based on a switch’s value, but the SwiftUI view doesn’t animate at all. Below is a simplified version of my code: class ViewController: UIViewController { private lazy var parentView: UIView = { let view = UIView() view.backgroundColor = .red view.translatesAutoresizingMaskIntoConstraints = false return view }() private lazy var hostingView: UIView = { let testView = TestView() let hostingController = UIHostingController(rootView: testView) let view = hostingController.view! view.translatesAutoresizingMaskIntoConstraints = false return view }() private lazy var button: UISwitch = { let button = UISwitch() button.addTarget(self, action: #selector(onClickSwitch(sender:)), for: .valueChanged) button.translatesAutoresizingMaskIntoConstraints = false return button }() private var hostingViewHeightConstraint: NSLayoutConstraint? override func viewDidLoad() { super.viewDidLoad() view.addSubview(parentView) parentView.addSubview(hostingView) parentView.addSubview(button) NSLayoutConstraint.activate([ parentView.topAnchor.constraint(equalTo: view.topAnchor), parentView.bottomAnchor.constraint(equalTo: view.bottomAnchor), parentView.leadingAnchor.constraint(equalTo: view.leadingAnchor), parentView.trailingAnchor.constraint(equalTo: view.trailingAnchor) ]) NSLayoutConstraint.activate([ hostingView.bottomAnchor.constraint(equalTo: parentView.bottomAnchor), hostingView.leadingAnchor.constraint(equalTo: parentView.leadingAnchor), hostingView.trailingAnchor.constraint(equalTo: parentView.trailingAnchor) ]) hostingViewHeightConstraint = hostingView.heightAnchor.constraint(equalTo: parentView.heightAnchor, multiplier: 0.5) hostingViewHeightConstraint?.isActive = true NSLayoutConstraint.activate([ button.centerXAnchor.constraint(equalTo: parentView.centerXAnchor), NSLayoutConstraint(item: button, attribute: .centerY, relatedBy: .equal, toItem: parentView, attribute: .centerY, multiplier: 0.25, constant: 0) ]) } @objc func onClickSwitch(sender: UISwitch) { hostingViewHeightConstraint?.isActive = false let multiplier: CGFloat = sender.isOn ? 0.25 : 0.5 hostingViewHeightConstraint = hostingView.heightAnchor.constraint(equalTo: parentView.heightAnchor, multiplier: multiplier) hostingViewHeightConstraint?.isActive = true UIView.animate(withDuration: 0.3) { self.view.layoutIfNeeded() } } } I’m looking for the behavior demonstrated in the video below: Does anyone have suggestions on how to achieve this?

In our application we have two usecases for a Hotkey/Shortcut identification API/method. We have some predefined shortcuts that will ship with our MacOS application. They may or may not change dynamically, based on what the user has already set as shortcuts/hotkeys, and also to avoid any important system wide shortcuts that the user may or may not have changed. We allow the user to customize the shortcuts/hotkeys in our application, so we want to show what shortcuts the user already has in use system-wide and across their OS experience. This gives rise to the need for an API that lets us know which shortcut/hotkeys are currently being used by the user and also the current system wide OS shortcuts in use. Please let me know if there are any APIs in AppKit or SwiftUI we can use for the above

Hello, the LocalizedStringKey does not work in the live activity. What do you suggest me to use in order to get localization in the live activity?

i am posting this because i seek an understanding of Apple's cross-platform UI strategy. my background is UIKit, Core Animation, and Chameleon a UIKit workalike for (then) OSX. UIKit evolved and Mac Catalyst came along. what is the positioning of Mac Catalyst? it extends and at the same time it limits AppKit. is it an AppKit extension or is it a UI framework of its own? a Mac Catalyst app is not an AppKit app, or is it? or is it sort-of? then came SwiftUI. does SwiftUI sit on top of UIKit (for iOS) and Mac Catalyst (for macOS) or is it an unrelated technology? more recently i see CoreUI messages in the debugger console. where does that fit in? will future UIKit, AppKit, Mac Catalyst, and SwiftUI all build upon CoreUI? will CoreUI become a public framework like CoreGraphics, CoreAnimation? in the old Apple docs there were block diagram overviews of how the individual frameworks would sit one on top of the other. this is what i am looking for...

Hey, It seems that when Apple Intelligence is enabled, scrolling can become completely broken when using an app. This is affecting several apps, including telegram: https://github.com/TelegramMessenger/Telegram-iOS/issues/1570?reload=1 It seems that UIPanGesture is affected by this. (MapKit stop being able to scroll too). Killing + Relaunching the app fix the problem. Bug report ID, containing a video: FB16780431

I integrated an Advanced App Clip Experience to my app. In trying to test the App Clip Card, the card does not appear when I tap the link on my device that is associated to the Advanced App Clip Experience. Listed are some contextual information: Testing on device running on iOS 18.3.1 Associated Domains: Main target app: applinks: App clips target app: applinks: and appclips: Archived and uploaded build to App Store Connect. Green "Testing" status via Testflight. On Distribution tab, green "Valid" status for build domain. Advanced App Clip Experience green "Received" status. Developer App Clip Testing Diagnostics: Green "Register Advanced Experience" status Green "App Clip Code" status Warning "App Clip Published on App Store" Orange Circle "Associated Domains" After looking at countless threads, I still cannot for the life of me find a solution to test the App Clip. Any guidance would be extremely appreciated. I had also submitted a support ticket with case ID #102552504973.

Hello everyone! I'm developing an app with this amazing RoomPlan API, so far everything works great, however I want to render a customized viewer and I don't want draw default 3D geometry, the line shapes are very helpful so I want to keep them. Is there any way to disable the 3D geometry shown on the viewr? I could just render another viewer ontop of the room capture viewer however I want to save as much resources as possible.