cjnevin

private func resolve(url: URL) async -> URL? {
    await withCheckedContinuation { continuation in
        var request = URLRequest(url: url)
        request.httpMethod = "HEAD"

        let task = URLSession.shared.dataTask(with: request) { _, response, error in
            guard let httpResponse = response as? HTTPURLResponse, error == nil else {
                continuation.resume(returning: nil)
                return
            }

cjnevin

import UIKit

protocol InnerCollectionViewCell: UICollectionViewCell {
    associatedtype Item: Hashable
    func configure(with item: Item, index: Int)
}

extension UICollectionViewFlowLayout {
    func rect(at index: Int) -> CGRect {
        CGRect(

cjnevin

import UIKit

class InfiniteCell: UICollectionViewCell, UICollectionViewDataSource, UICollectionViewDelegate {
    private var total: Int { additionalItemCount + items.count }
    private var additionalItemCount: Int = 0
    private let threshold: Int = 3 // will need to be based on orientation and screen size to perform correctly
    private var items: [UIColor] = []
    private let itemSize: CGSize = .init(width: 150, height: 150)
    private var itemsWidth: CGFloat { CGFloat(items.count) * itemSize.width }
    private lazy var flowLayout = UICollectionViewFlowLayout()

cjnevin

import SwiftUI

struct Tab: Equatable, Identifiable {
    var id: UUID = UUID()
    var color: Color
}

struct OffsetKey: PreferenceKey {
    static var defaultValue: CGFloat = 0

cjnevin

import SwiftUI

struct ContentView: View {
    @State var offset: CGFloat = 190
    @State var endOffset: CGFloat = 190
    @State var items: [Int] = [
        1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19
    ]

    var itemSpacing: CGFloat = 10

cjnevin

import SwiftUI

extension View {
    func sticky(in coordinateSpace: CoordinateSpace) -> some View {
        modifier(StickyViewModifier(coordinateSpace: coordinateSpace))
    }
}

private struct StickyViewModifier: ViewModifier {
    let coordinateSpace: CoordinateSpace

cjnevin

import SwiftUI

enum Behaviour {
    case pinnedBelow
    case normal
    case pinnedAbove
}

struct NonStickyView<Content: View>: View {
    let id: String

cjnevin

import SwiftUI

enum Constants {
    static let backgroundHeight: CGFloat = 500
    static let headerHeight: CGFloat = 150
    static let contentHeight: CGFloat = 350
}

struct ColoredView: View {
    let color: Color

cjnevin

import SwiftUI

enum Constants {
    static let heroHeight: CGFloat = 500
    static let menuHeight: CGFloat = 150
}

struct LargeHeaderView: View {
    let color: Color

cjnevin

import UIKit

enum Style {
    static let backgroundColor = UIColor.black
    static let spacing = CGFloat(8)
    static let filterStackHeight = CGFloat(34)
    static let filterHeaderHeight = (filterStackHeight * 2) + (spacing * 3)
}

class ViewController: UIViewController {