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Ignore accented rendering mode?
In iOS18 the user can change their Home Screen customization to choose either light, dark, or tinted. If they choose tinted the widgets are rendered using the "accented" rendering mode and without a background. Is there some way to override so that the tinted mode is ignore completely and the widgets render as full color? I know about WidgetAccentedRenderingMode (https://developer.apple.com/documentation/widgetkit/widgetaccentedrenderingmode) but that's only for images, not the whole control and doesn't help with the background also being removed in the tinted mode.
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954
Nov ’24
colorScheme value always dark after setting dark mode in display and brightness even if Home Screen customization is light
If you set the display and brightness settings in iOS to be in dark mode, then the value returned in the colorScheme environment value: https://developer.apple.com/documentation/swiftui/environmentvalues/colorscheme @Environment(.colorScheme) var colorScheme is always dark, even if you toggle between light or dark in the Home Screen customization option. Tinted is reported correctly. Is there some way to get the Home Screen customization light/dark/tinted value correctly? Swapping the Home Screen customization value between light/dark does swap between the light and dark app icon so it seems like the widget color scheme should also swap in this case.
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665
Sep ’24
Swift6 race warning
I'm trying to fix some Swift6 warnings, this one seems too strict, I'm not sure how to fix it. The variable path is a String, which should be immutable, it's a local variable and never used again inside of the function, but still Swift6 complains about it being a race condition, passing it to the task What should I do here to fix the warning?
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626
Jan ’25
Loading a DNG into CIRAWFilter and use HDR
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.
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129
Mar ’25
Crashes launching app from Camera control button
I'm using the LockedCameraCaptureExtension to launch my Camera app from the camera button. Some of our users report our app crashing a few seconds after being launch from the camera button. The call stack is something inside BoardServices [BSServicesConfiguration activateXPCService] I'm not sure how to investigate or fix this, anyone else having the same issue? Basically in my LockedCameraCaptureExtension when it loads I just call openApplication on the LockedCameraCaptureSession to launch into my app. @main struct captureExtension: LockedCameraCaptureExtension { var body: some LockedCameraCaptureExtensionScene { LockedCameraCaptureUIScene { session in Button(action: { Task { await openCamera(session: session) } }, label: { Text("Open Camera") }) .buttonStyle(PlainButtonStyle()) .task { await openCamera(session: session) } } } private func openCamera(session: LockedCameraCaptureSession) async { try? await session.openApplication(for: NSUserActivity(activityType: "com.mycompany.camera")) } }
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81
Sep ’25
White flash using manageSubscriptionsSheet in SwiftUI
In SwiftUI I am using the manageSubscriptionsSheet modifier to open the iOS subscription screen. When this is presented it immediately flashes a white view and then animated the subscription screen up from the bottom, it looks pretty bad. The view I am calling manageSubscriptionsSheet on is presented in a sheet, so maybe trying to present the subscriptions view as well is causing the visual glitch. Any way to not have this white flashing view when opening the subscription screen?
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137
Oct ’25
How to reduce draw call count in RealityKit
I'm trying to render a large number of entities, it looks like each ModelEntity causes a draw call, even if you share the ModelComponent so each Entity shares the mesh and materials. I tried to use the MeshInstanceCollection inside MeshResource to generate a large number of objects in the scene, the code works and draws many objects but the draw count is still one call per instance, this seems strange I would assume it should only be one draw call for the single entity since I have specified to use instancing in the resource. Has anybody else successfully used instancing in RealityKit to draw a large number go Entities (maybe around 10,000) or drawn this amount of items successfully with 60fps any other way? Here is some sample code that draws 100 cubes using instancing but still causes 100 draw calls. func instanceTest(scene: RealityKit.Scene) { var resource = MeshResource.generateBox(size: 0.2) var contents = MeshResource.Contents() contents.models = resource.contents.models var arr: [MeshResource.Instance] = [] var matrix = matrix_identity_float4x4 matrix[3, 0] = 0.5 for i in 0..<100 { let inst = MeshResource.Instance(id: "\(i)", model: "MeshModel", at: matrix) arr.append(inst) } contents.instances = MeshInstanceCollection(arr) let updatedResource = try? MeshResource.generate(from: contents) let unlitMaterial = UnlitMaterial(color: .red) let modelEntity = ModelEntity( mesh: updatedResource!, materials: [unlitMaterial] ) let anchor = AnchorEntity() anchor.addChild(modelEntity) scene.addAnchor(anchor) }
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1.1k
Jun ’24
Add a value to the Photos Caption field
In the iOS Photos app there is a caption field the user can write to. How can you write to this value from Swift when creating a photo? I see apps that do this, but there doesn't seem to be any official way to do this using the Photo library through PHAssetCreationRequest or PHAssetResourceCreationOptions or setting EXIF values, I tried settings a bunch of values there including IPTC values but nothing appears in the caption field in the iOS photos app. There must be some way to do it since I see other apps setting that value somehow after capturing a photo.
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124
Oct ’25
Crash on iOS18 Beta5 when adding a SCNAnimation animationDidStop closure with Swift6 selected
I'm trying to update my projects to use Swift6, if I change the project settings to use Swift6 then my app crashes when I add a closure to the SCNAnimation animationDidStop property. The error is inside the SceneKit renderingQueue and indicates that the callback is being called on the wring queue. Maybe I need to do something in the code to fix this but I can't seem to make it work, maybe a SceneKit bug? If you create a new game template in Xcode using SceneKit and replace the contents of GameViewController.swift with the following you will see the app crash after it is launched. import UIKit import SceneKit class GameViewController: UIViewController { let player: SCNAnimationPlayer = { let a = CABasicAnimation(keyPath: "opacity") return SCNAnimationPlayer(animation: SCNAnimation(caAnimation: a)) }() override func viewDidLoad() { super.viewDidLoad() let scnView = self.view as! SCNView scnView.scene = SCNScene() // Change the project settings to use Swift6 // Setting this closure will then cause a _dispatch_assert_queue_fail // EXC_BREAKPOINT error in the scenekit.renderingQueue.SCNView queue, // the only thing on the stack is: // "%sBlock was %sexpected to execute on queue [%s (%p)]" player.animation.animationDidStop = { (a: SCNAnimation, b: SCNAnimatable, c: Bool) in print("stopped") } scnView.scene?.rootNode.addAnimationPlayer(player, forKey: nil) player.play() } }
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1k
Aug ’24
Liquid Glass clear variant
In this WWDC talk about liquid glass https://developer.apple.com/videos/play/wwdc2025/219/ they mention that there are two variants of liquid glass, regular and clear. I don't see any way to try the clear variant using the .glassEffect() APIs, they only expose regular, is there some other way to try the clear variant?
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405
Aug ’25
WeatherKit REST API attribution logo when not using the Swift wrappers
If you use the iOS16 Swift WeatherKit API you can get the weather data attribution logo doing something like: // Skipping full syntax for example let attribution = WeatherService.shared.attribution // A URL to an image you can show along with the weather data attribution.combinedMarkLightURL What about if you are not using the iOS16 WeatherKit wrappers e.g. you are using the REST API on your own server to return data. The API docs show a providerLogo/providerName parameter in the metadata returned from the service, but they don't seem to be populated right now. Is it ok just to use a unicode Apple logo to make a string instead like:  Weather Also in the API there is a metadata object returned in each dataset e.g. current, daily, hourly which each has an attributionURL field, will all those values always be the same or we might have to display multiple URLs for data sources, the Swift example seems to just have one attribution object.
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2.1k
Nov ’22