content.swift

import SwiftUI
import UIKit

class CustomLargeTitleNavigationBar: UINavigationBar {
    
    private lazy var view: UIView = {
        let view = UIView()
        view.backgroundColor = .red
        view.translatesAutoresizingMaskIntoConstraints = false
        view.widthAnchor.constraint(equalToConstant: 200).isActive = true
        view.heightAnchor.constraint(equalToConstant: 44).isActive = true
        
        return view
    }()
    
    override func didMoveToSuperview() {
        super.didMoveToSuperview()
        print(subviews)
        
    }

    override func layoutSubviews() {
        super.layoutSubviews()
        
        for subview in subviews {
            print("subviews", subview.description)
            
            if let largeTitleLabel = subview.subviews.first(where: { $0 is UILabel }) as? UILabel {
                print("😍")
                let largeTitleView = subview
                if !largeTitleView.subviews.contains(view) {
                    largeTitleView.addSubview(view)
                    view.bottomAnchor.constraint(equalTo: self.bottomAnchor).isActive = true
                    view.leadingAnchor.constraint(equalTo: self.leadingAnchor).isActive = true
                }
                
                break
            }
        }
       
    }
}

struct CustomNavigationController: UIViewControllerRepresentable {
    var controllers: [UIViewController]
    
    func makeUIViewController(context: Context) -> UINavigationController {
        let navController = UINavigationController(
            navigationBarClass: CustomLargeTitleNavigationBar.self,
            toolbarClass: nil
        )
        
//        let navController = UINavigationController()
        
        navController.navigationBar.prefersLargeTitles = true
        navController.viewControllers = controllers
        
        /// Do something here later ?
        return navController
    }
    
    func updateUIViewController(_ navController: UINavigationController, context: Context) {
        navController.setViewControllers(controllers, animated: true)
    }
}

struct HostViewController<Content: View>: View {
    var viewControllers: [UIHostingController<Content>]
    
    init(@ViewBuilder content: () -> Content) {
        let vc = UIHostingController(rootView: content())
        vc.title = "Hosting"
        self.viewControllers = [vc]
        
    }
    
    var body: some View {
        CustomNavigationController(controllers: viewControllers)
    }
}

struct ContentView: View {
    let emojiList = [
        "🎨 - :art: - Improving structure / format of the code.",
        "⚡️ - :zap: - Improving performance.",
        "🔥 - :fire: - Removing code or files.",
        "🐛 - :bug: - Fixing a bug.",
        "🚑 - :ambulance: - Critical hotfix.",
        "✨ - :sparkles: - Introducing new features.",
        "📝 - :pencil: - Writing docs.",
        "🚀 - :rocket: - Deploying stuff.",
        "💄 - :lipstick: - Updating the UI and style files.",
        "🎉 - :tada: - Initial commit.",
        "✅ - :white_check_mark: - Updating tests.",
        "🔒 - :lock: - Fixing security issues.",
        "🍎 - :apple: - Fixing something on macOS.",
        "🐧 - :penguin: - Fixing something on Linux.",
        "🏁 - :checkered_flag: - Fixing something on Windows.",
        "🤖 - :robot: - Fixing something on Android.",
        "🍏 - :green_apple: - Fixing something on iOS.",
        "🔖 - :bookmark: - Releasing / Version tags.",
        "🚨 - :rotating_light: - Removing linter warnings.",
        "🚧 - :construction: - Work in progress.",
        "💚 - :green_heart: - Fixing CI Build.",
        "⬇️ - :arrow_down: - Downgrading dependencies.",
        "⬆️ - :arrow_up: - Upgrading dependencies.",
        "📌 - :pushpin: - Pinning dependencies to specific versions.",
        "👷 - :construction_worker: - Adding CI build system.",
        "📈 - :chart_with_upwards_trend: - Adding analytics or tracking code.",
        "♻️ - :recycle: - Refactoring code.",
        "🐳 - :whale: - Work about Docker.",
        "➕ - :heavy_plus_sign: - Adding a dependency.",
        "➖ - :heavy_minus_sign: - Removing a dependency.",
        "🔧 - :wrench: - Changing configuration files.",
        "🌐 - :globe_with_meridians: - Internationalization and localization.",
        "✏️ - :pencil2: - Fixing typos.",
        "💩 - :poop: - Writing bad code that needs to be improved.",
        "⏪ - :rewind: - Reverting changes.",
        "🔀 - :twisted_rightwards_arrows: - Merging branches.",
        "📦 - :package: - Updating compiled files or packages.",
        "👽 - :alien: - Updating code due to external API changes.",
        "🚚 - :truck: - Moving or renaming files.",
        "📄 - :page_facing_up: - Adding or updating license.",
        "💥 - :boom: - Introducing breaking changes.",
        "🍱 - :bento: - Adding or updating assets.",
        "👌 - :ok_hand: - Updating code due to code review changes.",
        "♿️ - :wheelchair: - Improving accessibility.",
        "💡 - :bulb: - Documenting source code.",
        "🍻 - :beers: - Writing code drunkenly.",
        "💬 - :speech_balloon: - Updating text and literals.",
        "🗃 - :card_file_box: - Performing database related changes.",
        "🔊 - :loud_sound: - Adding logs.",
        "🔇 - :mute: - Removing logs.",
        "👥 - :busts_in_silhouette: - Adding contributor(s).",
        "🚸 - :children_crossing: - Improving user experience / usability."
    ]
    var body: some View {
        TabView {
            HostViewController {
                List(emojiList, id: \.self) { Text($0) }
            }.tabItem {
                Image(systemName: "star")
            }
            
            NavigationView {
                List(emojiList, id: \.self) { Text($0) }
                    .navigationBarTitle(Text("Title"), displayMode: .large)
            }.tabItem {
                Image(systemName: "bookmark")
            }
            
            NavigationView {
                VStack {
                    Text("Do Something here")
                }.navigationBarTitle(Text("Title"), displayMode: .large)
            }.tabItem {
                Image(systemName: "bookmark")
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}