PagingScrollView.swift

struct PagingScrollView<Content: View>: UIViewRepresentable {
    let size: CGSize
    @Binding var contentOffset: CGPoint
    @ViewBuilder let content: () -> Content

    class Coordinator: NSObject, UIScrollViewDelegate {
        var hostingController: UIHostingController<Content>?
        var contentOffsetChanged: ((CGPoint) -> Void)?
        func scrollViewDidScroll(_ scrollView: UIScrollView) {
            contentOffsetChanged?(scrollView.contentOffset)
        }
    }

    func makeCoordinator() -> Coordinator {
        Coordinator()
    }

    func makeUIView(context: Context) -> UIScrollView {
        let view = UIScrollView()
        view.delegate = context.coordinator
        view.isPagingEnabled = true
        view.showsHorizontalScrollIndicator = false
        view.showsVerticalScrollIndicator = false
        view.contentInsetAdjustmentBehavior = .never

        let hostingController = UIHostingController(rootView: content())
        context.coordinator.hostingController = hostingController
        let contentView = hostingController.view ?? UIView()
        contentView.backgroundColor = .clear
        view.addSubview(contentView)

        context.coordinator.contentOffsetChanged = { contentOffset in
            DispatchQueue.main.async {
                self.contentOffset = contentOffset
            }
        }

        NotificationCenter.default.addObserver(forName: UIDevice.orientationDidChangeNotification, object: nil, queue: .main) { _ in
            view.contentOffset = .zero
        }

        return view
    }

    func updateUIView(_ uiView: UIScrollView, context: Context) {
        context.coordinator.hostingController?.rootView = content()
        uiView.contentSize = size
        context.coordinator.hostingController?.view.frame = CGRect(origin: .zero, size: size)
    }
}