Adding an inspector and toolbar to Xcode's app template, I have: struct ContentView: View { var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Hello, world!") } .padding() .toolbar { Text("test") } .inspector(isPresented: .constant(true)) { Text("this is a test") } } } In the preview canvas, this renders as I would expect: However when running the app: Am I missing something? (Relevant wwdc video is wwdc2023-10161. I couldn't add that as a tag)

I've had to ditch the SwiftUI app lifecycle due to this issue: https://developer.apple.com/forums/thread/742580 After creating a new UIKit document app as a test, it doesn't have a toolbar when opening the document. How can I add one along the lines of https://developer.apple.com/wwdc22/10069 ? The UIDocumentViewController isn't already embedded in a UINavigationController it seems. To reproduce: New Project -> iOS -> Document App. Select Interface: Storyboard. Add an empty "untitled.txt" resource to the project. Change the first line in documentBrowser(_:,didRequestDocumentCreationWithHandler:) to let newDocumentURL: URL? = Bundle.main.url(forResource: "untitled", withExtension: "txt")

In my app, I only get one interruption notification when a phone call comes in, and nothing after that. The app uses AVAudioEngine. Is this a bug? A very simple repro is to just register for the notification, but not do anything else with audio: struct ContentView: View { var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Hello, world!") } .padding() .onReceive(NotificationCenter.default.publisher(for: AVAudioSession.interruptionNotification)) { event in handleAudioInterruption(event: event) } } private func handleAudioInterruption(event: Notification) { print("handleAudioInterruption") guard let info = event.userInfo, let typeValue = info[AVAudioSessionInterruptionTypeKey] as? UInt, let type = AVAudioSession.InterruptionType(rawValue: typeValue) else { print("missing the stuff") return } if type == .began { print("interruption began") } else if type == .ended { print("interruption ended") guard let optionsValue = info[AVAudioSessionInterruptionOptionKey] as? UInt else { return } if AVAudioSession.InterruptionOptions(rawValue: optionsValue).contains(.shouldResume) { print("should resume") } } } } And do this in the app's init: @main struct InterruptionsApp: App { init() { try! AVAudioSession.sharedInstance().setCategory(.playback, options: []) try! AVAudioSession.sharedInstance().setActive(true) } var body: some Scene { WindowGroup { ContentView() } } }

I'm getting the following error on Intel Iris integrated graphics. Code works well on newer Mac GPUs as well as Apple GPUs. Execution of the command buffer was aborted due to an error during execution. Invalid Resource (00000009:kIOAccelCommandBufferCallbackErrorInvalidResource) The error is for a compute command, not a draw command. The constant isn't in the documentation. All buffers and textures seem to be created successfully. I've also checked that the GPU supports the required threadgroup size for the compute pipeline. thanks!

Why Auto Layout instead of the horizontal and vertical boxes used by other systems like Qt? Or a layout system like CSS?What is missing in the other ways of doing this stuff?Over a couple years, Auto Layout has given me mostly headaches, and I now generally try to avoid it, so I want to know if there's a good reason for my suffering.thanks!

I've got a scene which renders as I expect: but in the acceleration structure inspector, the kraken primitive doesn't render: In the list on the left, the structure is there. As expected, there is just one bounding-box primitive as a lot happens in the intersection function (doing it this way since I've already built my own octree and it takes too long to rebuild BVHs for dynamic geometry) This is just based on the SimplePathTracer example. The signatures of the sphereIntersectionFunction and octreeIntersectionFunction aren't that different: [[intersection(bounding_box, triangle_data, instancing)]] BoundingBoxIntersection sphereIntersectionFunction(// Ray parameters passed to the ray intersector below float3 origin [[origin]], float3 direction [[direction]], float minDistance [[min_distance]], float maxDistance [[max_distance]], // Information about the primitive. unsigned int primitiveIndex [[primitive_id]], unsigned int geometryIndex [[geometry_intersection_function_table_offset]], // Custom resources bound to the intersection function table. device void *resources [[buffer(0), function_constant(useResourcesBuffer)]] #if SUPPORTS_METAL_3 ,const device Sphere* perPrimitiveData [[primitive_data]] #endif ,ray_data IntersectionPayload& payload [[payload]]) { vs. [[intersection(bounding_box, triangle_data, instancing)]] BoundingBoxIntersection octreeIntersectionFunction(// Ray parameters passed to the ray intersector below float3 origin [[origin]], float3 direction [[direction]], float minDistance [[min_distance]], float maxDistance [[max_distance]], // Information about the primitive. unsigned int primitiveIndex [[primitive_id]], unsigned int geometryIndex [[geometry_intersection_function_table_offset]], // Custom resources bound to the intersection function table. device void *resources [[buffer(0)]], const device BlockInfo* perPrimitiveData [[primitive_data]], ray_data IntersectionPayload& payload [[payload]]) Note: running 15.0 beta 5 (15A5209g) since even the unmodified SimplePathTracer example project will hang the acceleration structure viewer on Xcode 14. Update: Replacing the octreeIntersectionFunction's code with just a hard-coded sphere does render. Perhaps the viewer imposes a time (or instruction count) limit on intersection functions so as to not hang the GPU?

I had to switch from the SwiftUI app lifecycle to the UIKit lifecycle due to this issue: https://developer.apple.com/forums/thread/742580 When I switch to UIKit I get a black screen on startup. It's the inverse of this issue: https://openradar.appspot.com/FB9692750 For development, I can work around this by deleting and reinstalling the app, but I can't ship an app that results in a black screen for users when they update. Anyone know of a work-around? I've filed FB13462315