From 4e4a92c2a3824fb15bdfaa907c72126a7e0adc2d Mon Sep 17 00:00:00 2001
From: Artur Gurgul <artur@gurgul.pro>
Date: Sat, 2 Aug 2025 13:00:06 +0200
Subject: [PATCH] Hello for SwiftUI

---
 ios/Native/Application/RootView.swift         | 24 +++++++++++++++
 ios/Native/Application/SharedState.swift      | 16 ++++++++++
 .../Application/UIReactNativeView.swift       | 29 +++++++++++++++++++
 .../UIReactNativeHostingViewController.swift  | 29 -------------------
 ios/RNPlayground/AppDelegate.swift            | 10 ++++---
 5 files changed, 75 insertions(+), 33 deletions(-)
 create mode 100644 ios/Native/Application/RootView.swift
 create mode 100644 ios/Native/Application/SharedState.swift
 create mode 100644 ios/Native/Application/UIReactNativeView.swift
 delete mode 100644 ios/Native/UIReactNativeHostingViewController.swift

diff --git a/ios/Native/Application/RootView.swift b/ios/Native/Application/RootView.swift
new file mode 100644
index 0000000..c13bc1e
--- /dev/null
+++ b/ios/Native/Application/RootView.swift
@@ -0,0 +1,24 @@
+//
+//  RootView.swift
+//  RNPlayground
+//
+//  Created by Artur Gurgul on 02/08/2025.
+//
+
+import SwiftUI
+
+struct RootView: View {
+  private let sharedState: SharedState
+  init(_ sharedState: SharedState) {
+    self.sharedState = sharedState
+  }
+  
+  var body: some View {
+    VStack {
+      Text("Hello to SwiftUI!")
+      if let reactNativeFactory = sharedState.reactNativeFactory {
+        UIReactNativeView(reactNativeFactory)
+      }
+    }
+  }
+}
diff --git a/ios/Native/Application/SharedState.swift b/ios/Native/Application/SharedState.swift
new file mode 100644
index 0000000..b491d6e
--- /dev/null
+++ b/ios/Native/Application/SharedState.swift
@@ -0,0 +1,16 @@
+//
+//  SharedState.swift
+//  RNPlayground
+//
+//  Created by Artur Gurgul on 02/08/2025.
+//
+
+import SwiftUI
+import Combine
+import React
+import React_RCTAppDelegate
+import ReactAppDependencyProvider
+
+final class SharedState: ObservableObject {
+  var reactNativeFactory: RCTReactNativeFactory?
+}
diff --git a/ios/Native/Application/UIReactNativeView.swift b/ios/Native/Application/UIReactNativeView.swift
new file mode 100644
index 0000000..5ff796f
--- /dev/null
+++ b/ios/Native/Application/UIReactNativeView.swift
@@ -0,0 +1,29 @@
+//
+//  UIReactNativeView.swift
+//  RNPlayground
+//
+//  Created by Artur Gurgul on 01/08/2025.
+//
+
+import UIKit
+import SwiftUI
+import React
+import React_RCTAppDelegate
+import ReactAppDependencyProvider
+
+
+struct UIReactNativeView: UIViewRepresentable {
+  var factory: RCTReactNativeFactory
+  
+  init(_ reactNativeFactory: RCTReactNativeFactory) {
+    factory = reactNativeFactory
+  }
+  
+  func makeUIView(context: Context) -> UIView {
+    return factory.rootViewFactory.view(withModuleName: "RNPlayground")
+  }
+  
+  func updateUIView(_ uiView: UIView, context: Context) {
+    
+  }
+}
diff --git a/ios/Native/UIReactNativeHostingViewController.swift b/ios/Native/UIReactNativeHostingViewController.swift
deleted file mode 100644
index fd46ee2..0000000
--- a/ios/Native/UIReactNativeHostingViewController.swift
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-//  UIReactNativeHostingViewController.swift
-//  RNPlayground
-//
-//  Created by Artur Gurgul on 01/08/2025.
-//
-
-import UIKit
-import React
-import React_RCTAppDelegate
-import ReactAppDependencyProvider
-
-class UIReactNativeHostingViewController: UIViewController {
-  
-  var factory: RCTReactNativeFactory
-  
-  init(_ reactNativeFactory: RCTReactNativeFactory) {
-    self.factory = reactNativeFactory
-    super.init(nibName: nil, bundle: nil)
-  }
-  
-  required init?(coder: NSCoder) {
-    fatalError("init(coder:) has not been implemented")
-  }
-  
-  override func loadView() {
-    view = factory.rootViewFactory.view(withModuleName: "RNPlayground")
-  }
-}
diff --git a/ios/RNPlayground/AppDelegate.swift b/ios/RNPlayground/AppDelegate.swift
index 0bbe441..82a2d95 100644
--- a/ios/RNPlayground/AppDelegate.swift
+++ b/ios/RNPlayground/AppDelegate.swift
@@ -1,4 +1,5 @@
 import UIKit
+import SwiftUI
 import React
 import React_RCTAppDelegate
 import ReactAppDependencyProvider
@@ -8,7 +9,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
   var window: UIWindow?
 
   var reactNativeDelegate: ReactNativeDelegate?
-  var reactNativeFactory: RCTReactNativeFactory?
+  private let sharedState = SharedState()
 
   func application(
     _ application: UIApplication,
@@ -19,7 +20,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     delegate.dependencyProvider = RCTAppDependencyProvider()
 
     reactNativeDelegate = delegate
-    reactNativeFactory = factory
+    sharedState.reactNativeFactory = factory
 
     window = UIWindow(frame: UIScreen.main.bounds)
     
@@ -34,10 +35,11 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
   }
   
   func startNativeApp() {
-    guard let window, let reactNativeFactory else {
+    guard let window, sharedState.reactNativeFactory != nil else {
       return
     }
-    window.rootViewController = UIReactNativeHostingViewController(reactNativeFactory)
+    
+    window.rootViewController = UIHostingController(rootView: RootView(sharedState))
     window.makeKeyAndVisible()
   }
 }