SwiftUI List performance

When the guy was talking about structural identity, starting at about 8:53, he mentioned how the swiftui needs to guarantee that the two views can't swap places, and it does this by looking at the views type structure. It guarantees that the true view will always be an A, and the false view will always be a B. Not sure exactly what he means because views can't swap places like dogs. Why isn't just knowing that some View is shown in true, and another is shown in false, enough for its identity? e.g. The identity could be The view on true vs The view on false, same as his example with The dog on the left vs The dog on the right

I have a UIHostingController on which I have set: hostingController.sizingOptions = [.intrinsicContentSize] The size of my SwiftUI content changes with animation (I update a @Published property on an ObservableObject inside a withAnimation block). However, I notice that my hostingController.view just jumps to the new frame without animating the change. Question: how can I animate the frame changes in UIHostingController that are caused by sizingOptions = [.intrinsicContentSize]

I am very new to the macOS Shortcuts application. In my opinion, the documentation is sparse and totally inadequate. The internet seems to be the only method of figuring out how to use this application. I have recently created a shortcut that is working well for me. It has several steps and is too large to fit in the Shortcuts editor window, so I cannot grab a screenshot of it for documenation purposes. I also cannot copy the contents of the editor window and paste them anywhere, such as in a new Note or TextEdit document. I do think Apple should add a means to create a PDF document of the Shortcuts editor window's contents. I went to the official Apple feedback page to leave comments but, irony of ironies, the Shortcuts app is not listed there! I have no idea what I am doing at this point but am excited to learn how to use Shortcuts to automate and simplify tasks that I have to perform frequently. Here's hoping the documentation and features for this application will one day be comprehensiv

Hi Community, I'm excited to share R Helper, a speech practice app I built with accessibility as the core focus from day one. App Store: https://apps.apple.com/app/speak-r-clearly/id6751442522 WHY I BUILT THIS I personally struggled with R sound pronunciation growing up. It affected my confidence in school and job interviews. That experience taught me how important accessible practice tools are. R Helper helps children and adults practice R sounds with full accessibility support. ACCESSIBILITY FEATURES IMPLEMENTED VoiceOver - complete navigation and feedback Voice Control - hands-free operation Dynamic Type - scales to large accessibility sizes Reduce Motion - respects user preference Dark Mode - user controllable High Contrast compatibility Differentiate Without Color THE CHALLENGE Most speech practice apps ignore accessibility. I wanted to change that and prove that specialized educational apps can be fully accessible. KEY FEATURES Works 100% offline, no internet needed Zero data collection, privacy first G

Hi, I’m implementing a macOS DNS Proxy as a system extension and running into a persistent activation error: OSSystemExtensionErrorDomain error 9 (validationFailed) with the message: extension category returned error This happens both on an MDM‑managed Mac and on a completely clean Mac (no MDM, fresh install). Setup macOS: 15.x (clean machine, no MDM) Xcode: 16.x Team ID: AAAAAAA111 (test) Host app bundle ID: com.example.agent.NetShieldProxy DNS Proxy system extension bundle ID: com.example.agent.NetShieldProxy.dnsProxy The DNS Proxy is implemented as a NetworkExtension system extension, not an app extension. Host app entitlements From codesign -d --entitlements :- /Applications/NetShieldProxy.app: xml com.apple.application-identifier AAAAAAA111.com.example.agent.NetShieldProxy com.apple.developer.system-extension.install com.apple.developer.team-identifier AAAAAAA111 com.apple.security.app-sandbox com.apple.security.application-groups group.com.example.NetShieldmac com.apple.security.files.user-selected.

Issue Description: Tapping the app widget sometimes triggers the Universal Link twice, causing duplicate navigation or actions within the app Steps to Reproduce: Add the app widget to the home screen Tap the widget to open the app via the Universal Link Observe that the Universal Link is sometimes fired twice Expected Behavior: Tapping the widget should trigger the Universal Link only once. Actual Behavior: Universal Link is triggered twice, causing duplicate navigation or actions.

I'm implementing PurchaseIntent.intents for App Store in-app purchase promotions, following Apple's WWDC guidance. The API only works on cold launch (killed→launch), but fails on background→foreground transitions, making App Store promotions unusable. Sample code as followed from WWDC23 video What's new in StoreKit 2 and StoreKit Testing in Xcode. In the StoreKitManager observable class, I have this function which is initialized in a listening task: func listenForPurchaseIntent() -> Task { return Task { [weak self] in for await purchase in PurchaseIntent.intents { guard let self else { continue } let product = purchase.product await self.purchaseProduct(product) } } } where purchaseProduct() will perform the call to: try await product.purchase() ISSUE: When the app is in background (after previously launched), and the purchase intent is initiated from Xcode Transaction Manager or using the itms-services://?action=purchaseIntent method, the system foregrounds my app but the purchase intent is never