I'm debugging an issue where the device unexpectedly turns to landscape and back to portrait orientation, and trying to find the root cause of it.

My company has all iOS commit pushes broadcast build failures in Slack, and I'd rather not dump a bunch of these there while I work to resolve Xcode Cloud build failures unique to its temporary build environment.

I can only select a tab bar button item. Then, CPU usage spikes to 100%-200% and I can no longer do anything like tapping a cell or scrolling. Any thoughts on the potential cause, fix, or a workaround? This happens with both devices and simulators.

override var supportedInterfaceOrientations: UIInterfaceOrientationMask { return [.landscapeRight, .landscapeLeft] } My modal view controller overrides this property, as its a complex custom video player that needs to be restricted to landscape. However, when it's dismissed, there is a jarring bug in the transition where the presenting VC is portrait in the device's landscape state for a second while half of the screen is black. It returns to normal (portrait) after a second, but I would like to avoid this transition bug. What might I be missing as to the root cause, or recommended way to have a portrait app (set in project navigator) present a landscape-only view controller?

I encountered this error 2023-01-24T22:14:41.500565325Z Installing ri documentation for cocoapods-catalyst-support-0.2.1 2023-01-24T22:14:41.500827390Z Done installing documentation for colored2, concurrent-ruby, i18n, tzinfo, zeitwerk, activesupport, nap, fuzzy_match, httpclient, algoliasearch, ffi, ethon, typhoeus, netrc, public_suffix, addressable, cocoapods-core, claide, cocoapods-deintegrate, cocoapods-downloader, cocoapods-plugins, cocoapods-search, cocoapods-trunk, cocoapods-try, molinillo, atomos, nanaimo, rexml, xcodeproj, escape, fourflusher, gh_inspector, ruby-macho, cocoapods, cocoapods-catalyst-support after 50 seconds 2023-01-24T22:14:41.500997230Z 35 gems installed 2023-01-24T22:14:42.023353910Z [in /Volumes/workspace/repository] 2023-01-24T22:14:42.023798292Z 2023-01-24T22:14:42.024448317Z [!] Invalid `Podfile` file: cannot load such file -- cocoapods-catalyst-support. 2023-01-24T22:14:42.024714192Z 2023-01-24T22:14:42.024976712Z # from /Volumes/workspace/repository/Podfile:1 2023-01-24T22:14:42.025200239Z # ------------------------------------------- 2023-01-24T22:14:42.025463448Z > require 'cocoapods-catalyst-support' 2023-01-24T22:14:42.025663811Z # 2023-01-24T22:14:42.025900158Z # ------------------------------------------- from my post-clone script, which is #!/bin/sh # ci_post_clone.sh export GEM_HOME="$HOME/.gem" gem install bundler brew install cocoapods gem install cocoapods-catalyst-support # Install dependencies managed with CocoaPods. pod install

For previous iOS versions, what would be a good approach to this?

For an example like: someOptionalDouble = aDecoder.decodeDouble(forKey: "SomeKey") I'm not sure how to avoid a crash if the double was encoded as nil, while also avoiding Apple's console warning that decoding primitives as an object will become an error in the future.

I have a watchOS app (not independent) that I'm trying to bring StoreKit support to purchasing subscriptions. When I make my existing StoreKit manager for iOS target watchOS, the productsRequest(_:didReceive:) delegate callback returns an empty response.products array but I don't understand why. One guess as to the cause is that when I initialize the SKProductsRequest, the products identifiers I pass ones with prepended bundle identifiers, which may different between iOS and watchOS? The existing iOS code has the format static let subscriptionKindOne = Bundle.main.bundleIdentifier!.lowercased() + ".subscriptionKindOne" static let subscriptionKindTwo = Bundle.main.bundleIdentifier!.lowercased() + ".subscriptionKindTwo" static let subscriptionKindThree = Bundle.main.bundleIdentifier!.lowercased() + ".subscriptionKindThree" Is this right? If so, what would be the correct way to start a products request on watchOS, so that the SKProductsResponse products array is populated?

After adding a native Mac target (SwiftUI Multiplatform + AppKit) to an iOS app, I get this compiler error. Does this require moving off of XIBs entirely, or is there something else I can do to resolve this error?

In a new document-based UIKit app, specifying in the Info.plist an import type identifier of public.log that conforms to public.content, public.data, public.item accomplishes this. In a new document-based SwiftUI multi-platform app, doing the same crashed at the DocumentGroup initializer with the error _SwiftData_SwiftUI/Documents.swift:91: Fatal error: The document type is public.log which does not conform to com.apple.package. This initializer expects the document type to be a package.

After adopting sidebar / split view controller support in Mac Catalyst, there are several UI side effects that make the default title bar stick out and look inconsistent. If I hide the title bar however, func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { guard let windowScene = (scene as? UIWindowScene) else { return } #if targetEnvironment(macCatalyst) if let titlebar = windowScene.titlebar { titlebar.titleVisibility = .hidden titlebar.toolbar = nil } #endif } the ability to double click the top of the window to maximize it is lost. What would be the simplest approach to have both the hidden appearance, but keep the double click behavior?

Is there a UIKit equivalent to SwiftUI's confirmationDialog(_:isPresented:titleVisibility:actions:)?

The Swift book says that "to prevent strong reference cycles, delegates are declared as weak references." protocol SomeDelegate: AnyObject { } class viewController: UIViewController, SomeDelegate { weak var delegate: SomeDelegate? override func viewDidLoad() { delegate = self } } Say the class parameterizes a struct with that delegate class viewController: UIViewController, SomeDelegate { weak var delegate: SomeDelegate? override func viewDidLoad() { delegate = self let exampleView = ExampleView(delegate: delegate) let hostingController = UIHostingController(rootView: exampleView) self.present(hostingController, animated: true) } } struct ExampleView: View { var delegate: SomeDelegate! var body: some View { Text("") } } Should the delegate property in the struct also be marked with weak?

How do you only accept pan gestures when the user is in the process of a pinch gesture? In other words, I'd like to avoid delivering one finger pan gestures. @IBAction func pinchPiece(_ pinchGestureRecognizer: UIPinchGestureRecognizer) { guard pinchGestureRecognizer.state == .began || pinchGestureRecognizer.state == .changed, let piece = pinchGestureRecognizer.view else { // After pinch releases, zoom back out. if pinchGestureRecognizer.state == .ended { UIView.animate(withDuration: 0.3, animations: { pinchGestureRecognizer.view?.transform = CGAffineTransform.identity }) } return } adjustAnchor(for: pinchGestureRecognizer) let scale = pinchGestureRecognizer.scale piece.transform = piece.transform.scaledBy(x: scale, y: scale) pinchGestureRecognizer.scale = 1 // Clear scale so that it is the right delta next time. } @IBAction func panPiece(_ panGestureRecognizer: UIPanGestureRecognizer) { guard panGestureRecognizer.state == .began || panGestureRecognizer.state == .changed, let piece = panGestureRecognizer.view else { return } let translation = panGestureRecognizer.translation(in: piece.superview) piece.center = CGPoint(x: piece.center.x + translation.x, y: piece.center.y + translation.y) panGestureRecognizer.setTranslation(.zero, in: piece.superview) } public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool { true }

I just got an app feature working where the user imports a video file, each frame is fed to a custom action classifier, and then only frames with a certain action classified are exported. However, I'm finding that testing a one hour 4K video at 60 FPS is taking an unreasonably long time - it's been processing for 7 hours now on a MacBook Pro with M1 Max running the Mac Catalyst app. Are there any techniques or general guidance that would help with improving performance? As much as possible I'd like to preserve the input video quality, especially frame rate. One hour length for the video is expected, as it's of a tennis session (could be anywhere from 10 minutes to a couple hours). I made the body pose action classifier with Create ML.