I am using UISheetPresentationController to present a sheet. Everything works fine except I am not able to modify width of the sheet in landscape mode. As per design the width has to be 60% of the view bounds. In Apple talk: https://developer.apple.com/videos/play/wwdc2021/10063/ It is mentioned that we can resize sheet to preferredContentSize if this flag is set to true: sheet.widthFollowsPreferredContentSizeWhenEdgeAttached = true But this does not work. Here is my code: class BottomSheetController<Content: View>: UIViewController { private var hostingController: UIHostingController<Content>? init( content: @escaping () -> Content) { self.hostingController = UIHostingController(rootView: content()) super.init(nibName: nil, bundle: nil) configureSheetProperties() } required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") } override func viewDidLoad() { super.viewDidLoad() guard let hostingController = hostingController else { return } addChild(hostingController) view.addSubview(hostingController.view) hostingController.didMove(toParent: self) hostingController.view.translatesAutoresizingMaskIntoConstraints = false NSLayoutConstraint.activate([ hostingController.view.topAnchor.constraint(equalTo: view.topAnchor), hostingController.view.leadingAnchor.constraint(equalTo: view.leadingAnchor), hostingController.view.trailingAnchor.constraint(equalTo: view.trailingAnchor), hostingController.view.bottomAnchor.constraint(equalTo: view.bottomAnchor), ]) } private func configureSheetProperties() { modalPresentationStyle = .pageSheet preferredContentSize = CGSize(width: view.bounds.width * 0.6, height: view.bounds.height) if let sheet = sheetPresentationController { sheet.prefersGrabberVisible = true sheet.prefersScrollingExpandsWhenScrolledToEdge = false sheet.prefersEdgeAttachedInCompactHeight = true sheet.widthFollowsPreferredContentSizeWhenEdgeAttached = true sheet.preferredCornerRadius = 20 sheet.detents = [.medium()] } } open override var preferredContentSize: CGSize { get { return CGSize(width: view.bounds.width * 0.6, height: super.preferredContentSize.height) } set { super.preferredContentSize = CGSize(width: view.bounds.width * 0.6, height: newValue.height) } } }