I have an ARSCNView with nodes in AR. The UI guides you in scaling an object and the images captured are used to create a 3D model. When I try take a picture using arView.snapshot() it basically takes a screenshot a the resolution is the screen resolution and the nodes are visible. I also noticed that the AR View displays a lower quality output than the camera app. If I try get a separate camera output with AVFoundation then the arView doesn't get an output and vive versa, it only allows one view to access the camera. Is it possible to get a full resolution image without the nodes visible from the AR View (if I hide them, capture the image and display them again they do flicker) or is it possible to have 2 camera streams one to the arView and the other used to solely capture images (this one does not need to visible on screen)

In my tableview I have a few custom cells. When I scroll in the tableview it lags in the same spot but only for the first time the app is open. if I go back to the root view then open the tableview again it doesn't seem to lag. I've traced the lag to one cell. In that cell I have an embedded collection view and each of those cells has image view with is showing a MKMapSnapshot and also a few labels etc. If run with 0 collectionView cells (numberOfCellsInSection) the tableview scrolls smoothly but lags when I have 1 or more CollectionViewCell cells. I initially loaded the image in the collectionView cell class in layoutSubviews which worked but I then learned that this is called numerous times so code like that shouldn't be there. if I put it in awakeFromNib the Branch struct doesn't seem to have been passed to the cell as yet (from cellForRowAt) so it doesn't work there. I then moved setting the image in cellForItemAt but I'm still not sure if it is correct there. // Table View cellForRowAt         case .branchesCell:             let cell = tableView.dequeueReusableCell(withIdentifier: "branchesCell", for: indexPath) as! BranchesCell             cell.branches = restaurant?.branches // This is the info the embedded collectionView cell should display. Text for labels and coordinates for the MKMapSnapshot.             return cell // TableView Cell Class class BranchesCell: UITableViewCell, UICollectionViewDelegate, UICollectionViewDataSource {     @IBOutlet var collectionView: UICollectionView!     var branches: [Branch]?     var restaurantName = String()     override func awakeFromNib() {         super.awakeFromNib()         collectionView.delegate = self         collectionView.dataSource = self         collectionView.backgroundColor = .clear         collectionView.delaysContentTouches = false     }     // MARK: UICollectionView     func numberOfSections(in collectionView: UICollectionView) -> Int { return 1 }     func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {         if let branches = branches {             return branches.count         } else { return 0 }     }          func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {         let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! NestledBranchCell         cell.layer.masksToBounds = false         cell.backgroundColor = .clear         let imageView = cell.viewWithTag(1) as! UIImageView         if let branches = branches {             cell.branch = branches[indexPath.row]             cell.restaurantName = restaurantName // Tried to run this in a different thread to see if it would make a difference.             DispatchQueue.main.async() { [self] in                 let size = CGSize(width: 314, height: 195) // Set the image here                 getMapImage(branch: branches[indexPath.row], size: size) { mapImage in                     imageView.image = mapImage                 }             }         }         return cell     }     func getMapImage(branch: Branch, size: CGSize, completion: @escaping (UIImage?) -> ()) {         var mapImage = UIImage()         let mapSnapshotOptions = MKMapSnapshotter.Options()         let location = branch.coordinates.coordinate         let region = MKCoordinateRegion(center: location, latitudinalMeters: 300, longitudinalMeters: 300)         mapSnapshotOptions.region = region         mapSnapshotOptions.scale = UIScreen.main.scale         mapSnapshotOptions.size = size         mapSnapshotOptions.showsBuildings = true         mapSnapshotOptions.pointOfInterestFilter = .none         let snapShotter = MKMapSnapshotter(options: mapSnapshotOptions)         snapShotter.start { snapshot, error in             let image = snapshot?.image             mapImage = image!             completion(mapImage)         }     } }

I have a CollectionView in my SwiftUI App. The collectionView is wrapped in a UIViewRepresentable. If I tap on a collectionView cell normally the function isn't called but if I hold the cell down the console prints <0x107507790> Gesture: System gesture gate timed out. and when I let go of the cell after that's printed then didSelectItem is called. Here is my CollectionView Class: class SessionsCollectionView: UIView, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout { lazy var collectionView: UICollectionView = { let layout = UICollectionViewFlowLayout() layout.minimumInteritemSpacing = 0 layout.minimumLineSpacing = 30 let collectionView = UICollectionView(frame: CGRect.zero, collectionViewLayout: layout) collectionView.translatesAutoresizingMaskIntoConstraints = false collectionView.dataSource = self collectionView.delegate = self collectionView.clipsToBounds = false collectionView.delaysContentTouches = false collectionView.register(SessionCell.self, forCellWithReuseIdentifier: "cell") collectionView.register(SessionsHeader.self, forSupplementaryViewOfKind: UICollectionView.elementKindSectionHeader, withReuseIdentifier: "header") return collectionView }() override init(frame: CGRect) { super.init(frame: frame) self.backgroundColor = .clear setupCollectionView() } required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") } private func setupCollectionView() { addSubview(collectionView) collectionView.backgroundColor = .clear collectionView.alwaysBounceVertical = true collectionView.alwaysBounceHorizontal = false collectionView.delaysContentTouches = false collectionView.contentInset = .init(top: 20, left: 0, bottom: 20, right: 0) collectionView.showsVerticalScrollIndicator = false NSLayoutConstraint.activate([ collectionView.topAnchor.constraint(equalTo: topAnchor), collectionView.leadingAnchor.constraint(equalTo: leadingAnchor), collectionView.trailingAnchor.constraint(equalTo: trailingAnchor), collectionView.bottomAnchor.constraint(equalTo: bottomAnchor) ]) } // MARK: Header func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView { if kind == UICollectionView.elementKindSectionHeader { let sectionHeader = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: "header", for: indexPath) as! Header return sectionHeader } } func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize { let width: CGFloat = collectionView.frame.width let height: CGFloat = 33 + 20 return CGSize(width: width, height: height) } // MARK: - UICollectionViewDataSource func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { return 10 } func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! SessionCell return cell } // MARK: - UICollectionViewDelegateFlowLayout func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize { let width = collectionView.bounds.width let height = 150 return CGSize(width: collectionView.bounds.width, height: height) } func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { print(indexPath.row) } } struct SessionsCollectionViewWrapper: UIViewRepresentable { var sessionViewNavigation: SessionViewNavigation func makeUIView(context: Context) -> SessionsCollectionView { let sessionsCollectionView = SessionsCollectionView() return sessionsCollectionView } func updateUIView(_ uiView: SessionsCollectionView, context: Context) { // Update any properties or handle updates if needed } }

In my Table View I have the label text set to a different colour if the name is in the Flagged Array (flaggedNames). The correct cell labels turn red but as I scroll the text of other labels are also red. This changes as I scroll.     override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {         let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)         let name = names[indexPath.row]         cell.textLabel?.text = name         if flaggedNames.contains(meterNumber) {             cell.textLabel?.textColor = .systemRed         }         return cell     }

I'm looking to get a GPU to use for Object capture. The requirements are an AMD GPU with 4GB of VRAM and ray tracing support, the rx 580 seems to be able to do ray tracing from what I've found online but looks like someone had an issue with a 580X here https://developer.apple.com/forums/thread/689891

I subclassed UISlider and changed the track width (and nothing else) and as you move the slider to the end the last bit of the track appears before the thumb has been moved to the end and there is no radius on the end. If the thumb is at the start you have to move the thumb quite a bit before the track starts to highlight.

I'm trying to access another class in my CollectionView Controller but when I try and initialise the class I get the error Here is the class @MainActor class AlbumsViewModel {     private let albumService: AlbumService     private let favouritesService: FavouritesService     private let recommendationService: RecommendationService     @Published var favourites = [Bool]()     @Published var recommendedAlbums = [Album]()     @Published var allAlbums = [Album]() {         didSet {             updateFavourites()         }     }     init(albumService: AlbumService, favouritesService: FavouritesService, recommendationService: RecommendationService) {         self.albumService = albumService         self.favouritesService = favouritesService         self.recommendationService = recommendationService     } ...(functions here) Collectionview Controller Class class CVC: UICollectionViewController, UICollectionViewDelegateFlowLayout {     var viewModel: AlbumsViewModel     init?(viewModel: AlbumsViewModel, coder: NSCoder) {         self.viewModel = viewModel         super.init(coder: coder)     }     required init?(coder: NSCoder) {         fatalError("init(coder:) has not been implemented")     }     override func viewDidLoad() {         super.viewDidLoad()         collectionView.delaysContentTouches = false         Task {             print(viewModel.allAlbums)         }     } // End viewDidLoad ... Trying to recreate this https://martinmitrevski.com/2021/07/11/ml-recommendation-app-with-create-ml-on-ios-15/