ChrisMash

import Combine

class PlayerTimeObserver {
  let publisher = PassthroughSubject<TimeInterval, Never>()
  private var timeObservation: Any?
  
  init(player: AVPlayer) {
    // Periodically observe the player's current time, whilst playing
    timeObservation = player.addPeriodicTimeObserver(forInterval: CMTime(seconds: 0.5, preferredTimescale: 600), queue: nil) { [weak self] time in
      guard let self = self else { return }

ChrisMash

import SwiftUI
import AVFoundation

struct PlayerTimeView: View {
  let timeObserver: PlayerTimeObserver
  @State private var currentTime: TimeInterval = 0
  
  var body: some View {
    Text("\(Utility.formatSecondsToHMS(currentTime))")
    .onReceive(timeObserver.publisher) { time in

ChrisMash

import SwiftUI
import AVKit

struct VideoView: View {
   private let player = AVPlayer(url: URL(string: "https://bitdash-a.akamaihd.net/content/sintel/hls/playlist.m3u8")!)
   
   var body: some View {
     VideoPlayer(player: player)
            .onAppear() {
                // Start the player going, otherwise controls don't appear

ChrisMash

struct OCStruct {
    NSInteger integer;
};

@interface OCClass : NSObject

- (NSInteger)getInt;
- (NSString* _Nonnull)intToStringWith:(NSInteger)integer;
- (NSString* _Nullable)tryIntToStringWith:(NSInteger)integer;

ChrisMash

public struct SStruct {
    public var integer: Int
}

public class SClass: NSObject {
    @objc public func getInt() -> Int { ... }
    @objc public func intToString(_ int: Int) -> String { ... }
    @objc public func tryIntToString(_ int: Int) -> String? { ... }
}

ChrisMash

let address = "[email protected]"
let subject = "AwesomeApp Feedback"

// Example email body with useful info for bug reports
let body = "\n\nApp Version: \(appVersion)\nDevice: \(deviceType)\niOS: \(osVersion)"

// Build the URL from its components
var components = URLComponents()
components.scheme = "mailto"
components.path = address

ChrisMash

// A representation of a playing card
struct Card: Identifiable, Equatable {
    let id = UUID()
    let number: Int
}

// A representation of a player's hand of cards
class Hand: ObservableObject, Identifiable {
    let id = UUID()
    @Published var cards = [Card]()

ChrisMash

// A representation of the current state of the game,
// including which cards each player has and the deck
// of cards that can be picked up from
class GameState {
    
    private(set) var deck = Hand()
    private(set) var hands = [Hand]()
    
    init() {
        // Fill the deck with 20 cards, shuffled

ChrisMash

// A view to represent a single card
struct CardView: View {
    
    let card: Card
    let namespace: Namespace.ID
    
    var body: some View {
        ZStack {
            RoundedRectangle(cornerRadius: 20,
                             style: .continuous)

ChrisMash

struct CardView_Previews: PreviewProvider {
    // Create a wrapper view that will let us hold a @Namespace to pass to the view
    struct Wrapper: View {
        @Namespace var animation
        var body: some View {
            CardView(card: Card(number: 1), namespace: animation)
                .padding()
                .background(Color.gray)
        }
    }