ramzesenok

class Coordinator: UINavigationController {
    init() {
        super.init(nibName: nil, bundle: nil)

        let firstVC = HostingController { FirstView(push: push) }

        setViewControllers([firstVC], animated: false)
    }

    required init?(coder aDecoder: NSCoder) {

ramzesenok

struct ContentView: View {
    @State var titles = ["Cell #1", "Cell #2", "Cell #3", "Cell #4"]

    var body: some View {
        NavigationView {
            ScrollView {
                VStack(spacing: 0) {
                    ForEach(self.titles, id: \.self) { title in
                        HStack {
                            Text(title)

ramzesenok

enum Page: Identifiable, CaseIterable {
    case first, second

    var title: String {
        switch self {
        case .first:
            return "First"
        case .second:
            return "Second"
        }

ramzesenok

import Combine
import SwiftUI
import CoreData

class CoreDataViewModel: NSObject, ObservableObject, NSFetchedResultsControllerDelegate {
    let container: NSPersistentContainer
    private var controllerUpdates = [NSObject: CurrentValueSubject<[NSFetchRequestResult], Never>]()

    init(container: NSPersistentContainer) {
        self.container = container

ramzesenok

// MARK: - Data Structures

enum Operation: String {
    case add = "+"
    case subtract = "-"
    case multiply = "*"
    case divide = "/"
    
    var action: (Int, Int) -> Int {
        switch self {