Migrate standard sample apps to UIScene lifecycle (#2884)

Fixes https://github.com/flutter/flutter/issues/176957

add_to_app/books/flutter_module_books/pubspec.yaml

@@ -15,7 +15,7 @@ dependencies:
 dev_dependencies:
   analysis_defaults:
     path: ../../../analysis_defaults
-  pigeon: ">=11.0.0 <27.0.0"
+  pigeon: ">=11.0.0 <30.0.0"
   flutter_test:
     sdk: flutter
 

add_to_app/books/ios_books/Podfile

@@ -1,5 +1,4 @@
-# Uncomment the next line to define a global platform for your project
+platform :ios, '15.0'
-# platform :ios, '9.0'
 
 flutter_application_path = '../flutter_module_books/'
 load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')

add_to_app/fullscreen/ios_fullscreen/IOSFullScreen/AppDelegate.swift

@@ -2,20 +2,34 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
-    var window: UIWindow?
+  var flutterEngine: FlutterEngine?
 
-    var flutterEngine : FlutterEngine?
+  func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    // Instantiate Flutter engine
+    self.flutterEngine = FlutterEngine(name: "io.flutter", project: nil)
+    self.flutterEngine?.run(withEntrypoint: nil)
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+    return true
-        // Instantiate Flutter engine
+  }
-        self.flutterEngine = FlutterEngine(name: "io.flutter", project: nil)
-        self.flutterEngine?.run(withEntrypoint: nil)
 
-        return true
+  func application(
-    }
+    _ application: UIApplication,
+    configurationForConnecting connectingSceneSession: UISceneSession,
+    options: UIScene.ConnectionOptions
+  ) -> UISceneConfiguration {
+    let configuration = UISceneConfiguration(
+      name: "Default Configuration",
+      sessionRole: connectingSceneSession.role
+    )
+    configuration.delegateClass = FlutterSceneDelegate.self
+    return configuration
+  }
 }

add_to_app/fullscreen/ios_fullscreen/IOSFullScreen/Info-Debug.plist

@@ -20,6 +20,27 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

add_to_app/fullscreen/ios_fullscreen/IOSFullScreen/Info-Release.plist

@@ -20,6 +20,27 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

add_to_app/fullscreen/ios_fullscreen/Podfile

@@ -1,5 +1,4 @@
-# Uncomment the next line to define a global platform for your project
+platform :ios, '15.0'
-# platform :ios, '9.0'
 
 flutter_application_path = '../flutter_module_fullscreen'
 load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')

add_to_app/ios_content_resizing/ios_content_resizing/Podfile

@@ -1,5 +1,4 @@
-# Uncomment the next line to define a global platform for your project
+platform :ios, '15.0'
-# platform :ios, '15.0'
 
 flutter_application_path = '../flutter_module'
 load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')

add_to_app/ios_content_resizing/ios_content_resizing/ios_content_resizing/SceneDelegate.swift

@@ -5,48 +5,8 @@
 //  Created by Louise Hsu on 12/3/25.
 //
 
+import Flutter
 import UIKit
 
-class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+class SceneDelegate: FlutterSceneDelegate {
-
-  var window: UIWindow?
-
-
-  func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
-    // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
-    // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
-    // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
-    guard let _ = (scene as? UIWindowScene) else { return }
-  }
-
-  func sceneDidDisconnect(_ scene: UIScene) {
-    // Called as the scene is being released by the system.
-    // This occurs shortly after the scene enters the background, or when its session is discarded.
-    // Release any resources associated with this scene that can be re-created the next time the scene connects.
-    // The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).
-  }
-
-  func sceneDidBecomeActive(_ scene: UIScene) {
-    // Called when the scene has moved from an inactive state to an active state.
-    // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
-  }
-
-  func sceneWillResignActive(_ scene: UIScene) {
-    // Called when the scene will move from an active state to an inactive state.
-    // This may occur due to temporary interruptions (ex. an incoming phone call).
-  }
-
-  func sceneWillEnterForeground(_ scene: UIScene) {
-    // Called as the scene transitions from the background to the foreground.
-    // Use this method to undo the changes made on entering the background.
-  }
-
-  func sceneDidEnterBackground(_ scene: UIScene) {
-    // Called as the scene transitions from the foreground to the background.
-    // Use this method to save data, release shared resources, and store enough scene-specific state information
-    // to restore the scene back to its current state.
-  }
-
-
 }
-

add_to_app/multiple_flutters/multiple_flutters_ios/MultipleFluttersIos/SceneDelegate.swift

@@ -2,31 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import Flutter
 import UIKit
 
 /// The UIWindowSceneDelegate for the app.
-class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+class SceneDelegate: FlutterSceneDelegate {
-  var window: UIWindow?
-
-  func scene(
-    _ scene: UIScene, willConnectTo session: UISceneSession,
-    options connectionOptions: UIScene.ConnectionOptions
-  ) {
-    guard let _ = (scene as? UIWindowScene) else { return }
-  }
-
-  func sceneDidDisconnect(_ scene: UIScene) {
-  }
-
-  func sceneDidBecomeActive(_ scene: UIScene) {
-  }
-
-  func sceneWillResignActive(_ scene: UIScene) {
-  }
-
-  func sceneWillEnterForeground(_ scene: UIScene) {
-  }
-
-  func sceneDidEnterBackground(_ scene: UIScene) {
-  }
 }

add_to_app/multiple_flutters/multiple_flutters_ios/MultipleFluttersIos/SingleFlutterViewController.swift

@@ -39,7 +39,7 @@ class SingleFlutterViewController: FlutterViewController, DataModelObserver {
   override func viewDidLoad() {
     super.viewDidLoad()
     channel = FlutterMethodChannel(
-      name: "multiple-flutters", binaryMessenger: self.engine!.binaryMessenger)
+      name: "multiple-flutters", binaryMessenger: self.engine.binaryMessenger)
     channel!.invokeMethod("setCount", arguments: DataModel.shared.count)
     let navController = self.navigationController!
     channel!.setMethodCallHandler { (call: FlutterMethodCall, result: @escaping FlutterResult) in

add_to_app/multiple_flutters/multiple_flutters_ios/Podfile

@@ -1,3 +1,5 @@
+platform :ios, '15.0'
+
 # Copyright 2021 The Flutter team. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.

add_to_app/plugin/ios_using_plugin/IOSUsingPlugin/AppDelegate.swift

@@ -2,22 +2,36 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import UIKit
 import Flutter
 import FlutterPluginRegistrant
+import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
-    var window: UIWindow?
+  var flutterEngine: FlutterEngine?
-    
-    var flutterEngine : FlutterEngine?
-    
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
-        // Instantiate Flutter engine
-        self.flutterEngine = FlutterEngine(name: "io.flutter", project: nil)
-        self.flutterEngine?.run(withEntrypoint: nil)
-        GeneratedPluginRegistrant.register(with: self.flutterEngine!)
 
-        return true
+  func application(
-    }
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    // Instantiate Flutter engine
+    self.flutterEngine = FlutterEngine(name: "io.flutter", project: nil)
+    self.flutterEngine?.run(withEntrypoint: nil)
+    GeneratedPluginRegistrant.register(with: self.flutterEngine!)
+
+    return true
+  }
+
+  func application(
+    _ application: UIApplication,
+    configurationForConnecting connectingSceneSession: UISceneSession,
+    options: UIScene.ConnectionOptions
+  ) -> UISceneConfiguration {
+    let configuration = UISceneConfiguration(
+      name: "Default Configuration",
+      sessionRole: connectingSceneSession.role
+    )
+    configuration.delegateClass = FlutterSceneDelegate.self
+    return configuration
+  }
 }

add_to_app/plugin/ios_using_plugin/IOSUsingPlugin/Info-Debug.plist

@@ -20,6 +20,27 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

add_to_app/plugin/ios_using_plugin/IOSUsingPlugin/Info-Release.plist

@@ -20,6 +20,27 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

add_to_app/plugin/ios_using_plugin/Podfile

@@ -1,5 +1,4 @@
-# Uncomment the next line to define a global platform for your project
+platform :ios, '15.0'
-# platform :ios, '9.0'
 
 flutter_application_path = '../flutter_module_using_plugin'
 load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')

add_to_app/prebuilt_module/ios_using_prebuilt_module/IOSUsingPrebuiltModule/AppDelegate.swift

@@ -2,20 +2,34 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
-    var window: UIWindow?
+  var flutterEngine: FlutterEngine?
 
-    var flutterEngine : FlutterEngine?
+  func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    // Instantiate Flutter engine
+    self.flutterEngine = FlutterEngine(name: "io.flutter", project: nil)
+    self.flutterEngine?.run(withEntrypoint: nil)
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+    return true
-        // Instantiate Flutter engine
+  }
-        self.flutterEngine = FlutterEngine(name: "io.flutter", project: nil)
-        self.flutterEngine?.run(withEntrypoint: nil)
 
-        return true
+  func application(
-    }
+    _ application: UIApplication,
+    configurationForConnecting connectingSceneSession: UISceneSession,
+    options: UIScene.ConnectionOptions
+  ) -> UISceneConfiguration {
+    let configuration = UISceneConfiguration(
+      name: "Default Configuration",
+      sessionRole: connectingSceneSession.role
+    )
+    configuration.delegateClass = FlutterSceneDelegate.self
+    return configuration
+  }
 }

add_to_app/prebuilt_module/ios_using_prebuilt_module/IOSUsingPrebuiltModule/Info-Debug.plist

@@ -20,6 +20,27 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

add_to_app/prebuilt_module/ios_using_prebuilt_module/IOSUsingPrebuiltModule/Info-Release.plist

@@ -20,6 +20,27 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

animations/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

animations/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

asset_transformation/ios/Runner/AppDelegate.swift

@@ -2,12 +2,15 @@ import Flutter
 import UIKit
 
 @main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

asset_transformation/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

compass_app/app/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
 import Flutter
 import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

compass_app/app/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

compass_app/app/pubspec.yaml

@@ -35,7 +35,7 @@ dev_dependencies:
   integration_test:
     sdk: flutter
   build_runner: ^2.4.14
-  freezed: ^3.0.0
+  freezed: '>=3.0.0 <5.0.0'
   json_serializable: ^6.9.0
 
 flutter:

compass_app/server/pubspec.yaml

@@ -20,5 +20,5 @@ dev_dependencies:
     path: ../../analysis_defaults
   test: ^1.24.0
   build_runner: ^2.4.11
-  freezed: ^3.0.0
+  freezed: '>=3.0.0 <5.0.0'
   json_serializable: ^6.8.0

cupertino_gallery/ios/Runner/AppDelegate.swift

@@ -2,12 +2,15 @@ import Flutter
 import UIKit
 
 @main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

cupertino_gallery/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

date_planner/ios/Runner/AppDelegate.swift

@@ -2,12 +2,15 @@ import Flutter
 import UIKit
 
 @main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

date_planner/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

desktop_photo_search/fluent_ui/pubspec.yaml

@@ -31,7 +31,7 @@ dev_dependencies:
   analysis_defaults:
     path: ../../analysis_defaults
   async: ^2.11.0
-  build: ^3.0.0
+  build: '>=3.0.0 <5.0.0'
   build_runner: ^2.4.6
   built_value_generator: ^8.6.1
   flutter_test:

desktop_photo_search/material/pubspec.yaml

@@ -30,7 +30,7 @@ dev_dependencies:
   analysis_defaults:
     path: ../../analysis_defaults
   async: ^2.11.0
-  build: ^3.0.0
+  build: '>=3.0.0 <5.0.0'
   build_runner: ^2.4.6
   built_value_generator: ^8.6.1
   flutter_test:

dynamic_theme/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

dynamic_theme/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

form_app/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

form_app/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

google_maps/ios/Runner/AppDelegate.swift

@@ -1,18 +1,20 @@
-import UIKit
 import Flutter
 import GoogleMaps
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
-
     // TODO: Add your Google Maps API key
     GMSServices.provideAPIKey("YOUR-API-KEY")
 
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

google_maps/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

ios_app_clip/ios/AppClip/Info.plist

@@ -22,6 +22,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>NSAppClip</key>
 	<dict>
 		<key>NSAppClipRequestEphemeralUserNotification</key>

ios_app_clip/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
 @main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

ios_app_clip/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UIApplicationSupportsIndirectInputEvents</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>

material_3_demo/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

material_3_demo/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

navigation_and_routing/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

navigation_and_routing/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

pedometer/example/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

pedometer/example/ios/Runner/Info.plist

@@ -26,6 +26,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>NSMotionUsageDescription</key>
 	<string>Live stream pedometer</string>
 	<key>UIApplicationSupportsIndirectInputEvents</key>

platform_channels/ios/Runner/AppDelegate.swift

@@ -2,88 +2,111 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
-    override func application(
+  override func application(
-        _ application: UIApplication,
+    _ application: UIApplication,
-        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
-    ) -> Bool {
+  ) -> Bool {
-        let flutterViewController = window.rootViewController as! FlutterViewController
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
-        FlutterMethodChannel(name: "methodChannelDemo", binaryMessenger: flutterViewController.binaryMessenger).setMethodCallHandler({
+  }
-            (call: FlutterMethodCall, result: FlutterResult) -> Void in
+
-            
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
-            guard let count = (call.arguments as? NSDictionary)?["count"] as? Int else {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
-                result(FlutterError(code: "INVALID_ARGUMENT", message: "Value of count cannot be null", details: nil))
+
-                return
+    let messenger = engineBridge.applicationRegistrar.messenger()
-            }
+
-            
+    FlutterMethodChannel(name: "methodChannelDemo", binaryMessenger: messenger)
-            switch call.method {
+      .setMethodCallHandler({ (call: FlutterMethodCall, result: FlutterResult) -> Void in
-            case "increment":
+        guard let count = (call.arguments as? NSDictionary)?["count"] as? Int else {
-                result(count + 1)
+          result(
-            case "decrement":
+            FlutterError(
-                result(count - 1)
+              code: "INVALID_ARGUMENT",
-            default:
+              message: "Value of count cannot be null",
-                result(FlutterMethodNotImplemented)
+              details: nil
-            }
+            )
-        })
+          )
-        
+          return
-        FlutterBasicMessageChannel(name: "platformImageDemo", binaryMessenger: flutterViewController.binaryMessenger, codec: FlutterStandardMessageCodec.sharedInstance()).setMessageHandler{
-            (message: Any?, reply: FlutterReply) -> Void in
-            
-            if(message as! String == "getImage") {
-                guard let image = UIImage(named: "eat_new_orleans.jpg") else {
-                    reply(nil)
-                    return
-                }
-                
-                reply(FlutterStandardTypedData(bytes: image.jpegData(compressionQuality: 1)!))
-            }
         }
-        
+
-        FlutterEventChannel(name: "eventChannelDemo", binaryMessenger: flutterViewController.binaryMessenger).setStreamHandler(AccelerometerStreamHandler())
+        switch call.method {
-        
+        case "increment":
-        var petList : [[String:String]] = []
+          result(count + 1)
-        
+        case "decrement":
-        // A FlutterBasicMessageChannel for sending petList to Dart.
+          result(count - 1)
-        let stringCodecChannel = FlutterBasicMessageChannel(name: "stringCodecDemo", binaryMessenger: flutterViewController.binaryMessenger, codec: FlutterStringCodec.sharedInstance())
+        default:
-        
+          result(FlutterMethodNotImplemented)
-        // Registers a MessageHandler for FlutterBasicMessageChannel to receive pet details.
-        FlutterBasicMessageChannel(name: "jsonMessageCodecDemo", binaryMessenger: flutterViewController.binaryMessenger, codec: FlutterJSONMessageCodec.sharedInstance())
-            .setMessageHandler{(message: Any?, reply: FlutterReply) -> Void in
-                petList.insert(message! as! [String: String], at: 0)
-                stringCodecChannel.sendMessage(self.convertPetListToJson(petList: petList))
-            }
-        
-        // Registers a MessageHandler for FlutterBasicMessageHandler to receive indices of detail records to remove from the petList.
-        FlutterBasicMessageChannel(name: "binaryCodecDemo", binaryMessenger: flutterViewController.binaryMessenger, codec: FlutterBinaryCodec.sharedInstance()).setMessageHandler{
-            (message: Any?, reply: FlutterReply) -> Void in
-            
-            guard let index = Int.init(String.init(data: message! as! Data, encoding: String.Encoding.utf8)!) else {
-                reply(nil)
-                return
-            }
-            
-            if (index >= 0 && index < petList.count) {
-                petList.remove(at: index)
-                reply("Removed Successfully".data(using: .utf8)!)
-                stringCodecChannel.sendMessage(self.convertPetListToJson(petList: petList))
-            } else {
-                reply(nil)
-            }
         }
-        
+      })
-        GeneratedPluginRegistrant.register(with: self)
+
-        return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+    FlutterBasicMessageChannel(
+      name: "platformImageDemo",
+      binaryMessenger: messenger,
+      codec: FlutterStandardMessageCodec.sharedInstance()
+    ).setMessageHandler { (message: Any?, reply: FlutterReply) -> Void in
+      if message as! String == "getImage" {
+        guard let image = UIImage(named: "eat_new_orleans.jpg") else {
+          reply(nil)
+          return
+        }
+
+        reply(FlutterStandardTypedData(bytes: image.jpegData(compressionQuality: 1)!))
+      }
     }
-    
+
-    // Function to convert petList to json string.
+    FlutterEventChannel(
-    func convertPetListToJson(petList: [[String: String]]) -> String? {
+      name: "eventChannelDemo",
-        guard let data = try? JSONSerialization.data(withJSONObject: ["petList": petList], options: .prettyPrinted) else {
+      binaryMessenger: messenger
-            return nil
+    ).setStreamHandler(AccelerometerStreamHandler())
-        }
+
-        return String(data: data, encoding: String.Encoding.utf8)
+    var petList: [[String: String]] = []
+
+    // A FlutterBasicMessageChannel for sending petList to Dart.
+    let stringCodecChannel = FlutterBasicMessageChannel(
+      name: "stringCodecDemo",
+      binaryMessenger: messenger,
+      codec: FlutterStringCodec.sharedInstance()
+    )
+
+    // Registers a MessageHandler for FlutterBasicMessageChannel to receive pet details.
+    FlutterBasicMessageChannel(
+      name: "jsonMessageCodecDemo",
+      binaryMessenger: messenger,
+      codec: FlutterJSONMessageCodec.sharedInstance()
+    ).setMessageHandler { (message: Any?, reply: FlutterReply) -> Void in
+      petList.insert(message! as! [String: String], at: 0)
+      stringCodecChannel.sendMessage(self.convertPetListToJson(petList: petList))
     }
+
+    // Registers a MessageHandler for FlutterBasicMessageHandler to receive indices of detail records to remove from the petList.
+    FlutterBasicMessageChannel(
+      name: "binaryCodecDemo",
+      binaryMessenger: messenger,
+      codec: FlutterBinaryCodec.sharedInstance()
+    ).setMessageHandler { (message: Any?, reply: FlutterReply) -> Void in
+      guard let index = Int(String(data: message! as! Data, encoding: String.Encoding.utf8)!) else {
+        reply(nil)
+        return
+      }
+
+      if index >= 0 && index < petList.count {
+        petList.remove(at: index)
+        reply("Removed Successfully".data(using: .utf8)!)
+        stringCodecChannel.sendMessage(self.convertPetListToJson(petList: petList))
+      } else {
+        reply(nil)
+      }
+    }
+  }
+
+  // Function to convert petList to json string.
+  func convertPetListToJson(petList: [[String: String]]) -> String? {
+    guard let data = try? JSONSerialization.data(withJSONObject: ["petList": petList], options: .prettyPrinted) else {
+      return nil
+    }
+    return String(data: data, encoding: String.Encoding.utf8)
+  }
 }

platform_channels/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

platform_design/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

platform_design/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

platform_view_swift/ios/Runner/AppDelegate.swift

@@ -2,42 +2,56 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate, PlatformViewControllerDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate, PlatformViewControllerDelegate {
   var flutterResult: FlutterResult?
 
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
-        let controller: FlutterViewController = window?.rootViewController as! FlutterViewController
-        let channel = FlutterMethodChannel.init(name: "dev.flutter.sample/platform_view_swift", binaryMessenger: controller.binaryMessenger)
-        
-        channel.setMethodCallHandler({
-            (call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
-            if ("switchView" == call.method) {
-                self.flutterResult = result
-                
-                let platformViewController = PlatformViewController(nibName: "PlatformViewController", bundle: nil)
-                platformViewController.counter = call.arguments as! Int
-                platformViewController.delegate = self
-                
-                let navigationController = UINavigationController(rootViewController: platformViewController)
-                navigationController.navigationBar.topItem?.title = "Platform View"
-                controller.present(navigationController, animated: true, completion: nil)
-            } else {
-                result(FlutterMethodNotImplemented)
-            }
-        });
-        
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
-    
+
-    func didUpdateCounter(counter: Int) {
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
-        flutterResult?(counter)
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
-    }
+
+    let registrar = engineBridge.pluginRegistry.registrar(forPlugin: "PlatformViewSwift")
+    let channel = FlutterMethodChannel(
+      name: "dev.flutter.sample/platform_view_swift",
+      binaryMessenger: engineBridge.applicationRegistrar.messenger()
+    )
+
+    channel.setMethodCallHandler({
+      [weak self] (call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
+      guard let self = self else { return }
+      if "switchView" == call.method {
+        self.flutterResult = result
+
+        let platformViewController = PlatformViewController(nibName: "PlatformViewController", bundle: nil)
+        platformViewController.counter = call.arguments as! Int
+        platformViewController.delegate = self
+
+        let navigationController = UINavigationController(rootViewController: platformViewController)
+        navigationController.navigationBar.topItem?.title = "Platform View"
+
+        let presenter = registrar?.viewController ?? UIApplication.shared.connectedScenes
+          .compactMap { $0 as? UIWindowScene }
+          .flatMap { $0.windows }
+          .first { $0.isKeyWindow }?
+          .rootViewController
+
+        presenter?.present(navigationController, animated: true, completion: nil)
+      } else {
+        result(FlutterMethodNotImplemented)
+      }
+    })
+  }
+
+  func didUpdateCounter(counter: Int) {
+    flutterResult?(counter)
+  }
 }

platform_view_swift/ios/Runner/Info.plist

@@ -22,6 +22,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>
@@ -41,5 +62,9 @@
 	</array>
 	<key>UIViewControllerBasedStatusBarAppearance</key>
 	<false/>
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
+	<key>UIApplicationSupportsIndirectInputEvents</key>
+	<true/>
 </dict>
 </plist>

simple_shader/ios/Runner/AppDelegate.swift

@@ -1,13 +1,16 @@
-import UIKit
 import Flutter
+import UIKit
 
-@UIApplicationMain
+@main
-@objc class AppDelegate: FlutterAppDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
 }

simple_shader/ios/Runner/Info.plist

@@ -24,6 +24,27 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>FlutterSceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>