[draft] offer codes

packages/in_app_purchase/in_app_purchase_storekit/darwin/in_app_purchase_storekit/Sources/in_app_purchase_storekit/InAppPurchasePlugin.swift

@@ -60,6 +60,9 @@ public class InAppPurchasePlugin: NSObject, FlutterPlugin, FIAInAppPurchaseAPI {
     SetUpFIAInAppPurchaseAPI(messenger, instance)
     if #available(iOS 15.0, macOS 12.0, *) {
       InAppPurchase2APISetup.setUp(binaryMessenger: messenger, api: instance)
+      #if os(iOS)
+        registrar.addSceneDelegate(instance)
+      #endif
     }
   }
 
@@ -465,3 +468,7 @@ public class InAppPurchasePlugin: NSObject, FlutterPlugin, FIAInAppPurchaseAPI {
     )
   }
 }
+
+#if os(iOS)
+  extension InAppPurchasePlugin: FlutterSceneLifeCycleDelegate {}
+#endif

packages/in_app_purchase/in_app_purchase_storekit/darwin/in_app_purchase_storekit/Sources/in_app_purchase_storekit/StoreKit2/InAppPurchasePlugin+StoreKit2.swift

@@ -321,6 +321,51 @@ extension InAppPurchasePlugin: InAppPurchase2API {
     }
   }
 
+  func presentOfferCodeRedeemSheet(completion: @escaping (Result<Void, Error>) -> Void) {
+    #if os(iOS)
+      if #available(iOS 16.0, *) {
+        guard let windowScene = self.registrar?.viewController?.view.window?.windowScene else {
+          let error = PigeonError(
+            code: "storekit2_missing_key_window_scene",
+            message: "Failed to fetch key window scene",
+            details: "registrar.viewController.view.window.windowScene returned nil."
+          )
+          completion(.failure(error))
+          return
+        }
+        Task { @MainActor in
+          do {
+            try await AppStore.presentOfferCodeRedeemSheet(in: windowScene)
+            completion(.success(()))
+          } catch {
+            completion(.failure(error))
+          }
+        }
+      }
+    #elseif os(macOS)
+      if #available(macOS 15.0, *) {
+        guard let viewController = self.registrar?.viewController else {
+          let error = PigeonError(
+            code: "storekit2_missing_view_controller",
+            message: "Failed to fetch view controller",
+            details: "registrar.viewController returned nil."
+          )
+          completion(.failure(error))
+          return
+        }
+
+        Task { @MainActor in
+          do {
+            try await AppStore.presentOfferCodeRedeemSheet(from: viewController)
+            completion(.success(()))
+          } catch {
+            completion(.failure(error))
+          }
+        }
+      }
+    #endif
+  }
+
   /// Wrapper method around StoreKit2's sync() method
   /// https://developer.apple.com/documentation/storekit/appstore/sync()
   /// When called, a system prompt will ask users to enter their authentication details

packages/in_app_purchase/in_app_purchase_storekit/darwin/in_app_purchase_storekit/Sources/in_app_purchase_storekit/StoreKit2/StoreKit2Messages.g.swift

@@ -1,7 +1,7 @@
 // Copyright 2013 The Flutter Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-// Autogenerated from Pigeon (v26.1.5), do not edit directly.
+// Autogenerated from Pigeon (v26.1.10), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 
 import Foundation
@@ -759,6 +759,7 @@ protocol InAppPurchase2API {
   func restorePurchases(completion: @escaping (Result<Void, Error>) -> Void)
   func countryCode(completion: @escaping (Result<String, Error>) -> Void)
   func sync(completion: @escaping (Result<Void, Error>) -> Void)
+  func presentOfferCodeRedeemSheet(completion: @escaping (Result<Void, Error>) -> Void)
 }
 
 /// Generated setup class from Pigeon to handle messages through the `binaryMessenger`.
@@ -1008,6 +1009,24 @@ class InAppPurchase2APISetup {
     } else {
       syncChannel.setMessageHandler(nil)
     }
+    let presentOfferCodeRedeemSheetChannel = FlutterBasicMessageChannel(
+      name:
+        "dev.flutter.pigeon.in_app_purchase_storekit.InAppPurchase2API.presentOfferCodeRedeemSheet\(channelSuffix)",
+      binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      presentOfferCodeRedeemSheetChannel.setMessageHandler { _, reply in
+        api.presentOfferCodeRedeemSheet { result in
+          switch result {
+          case .success:
+            reply(wrapResult(nil))
+          case .failure(let error):
+            reply(wrapError(error))
+          }
+        }
+      }
+    } else {
+      presentOfferCodeRedeemSheetChannel.setMessageHandler(nil)
+    }
   }
 }
 /// Generated protocol from Pigeon that represents Flutter messages that can be called from Swift.

packages/in_app_purchase/in_app_purchase_storekit/darwin/in_app_purchase_storekit/Sources/in_app_purchase_storekit_objc/messages.g.m

@@ -733,11 +733,11 @@ void SetUpFIAInAppPurchaseAPIWithSuffix(id<FlutterBinaryMessenger> binaryMesseng
         binaryMessenger:binaryMessenger
                   codec:FIAGetMessagesCodec()];
     if (api) {
-      NSCAssert([api respondsToSelector:@selector(startProductRequestProductIdentifiers:
-                                                                             completion:)],
-                @"FIAInAppPurchaseAPI api (%@) doesn't respond to "
-                @"@selector(startProductRequestProductIdentifiers:completion:)",
-                api);
+      NSCAssert(
+          [api respondsToSelector:@selector(startProductRequestProductIdentifiers:completion:)],
+          @"FIAInAppPurchaseAPI api (%@) doesn't respond to "
+          @"@selector(startProductRequestProductIdentifiers:completion:)",
+          api);
       [channel setMessageHandler:^(id _Nullable message, FlutterReply callback) {
         NSArray<id> *args = message;
         NSArray<NSString *> *arg_productIdentifiers = GetNullableObjectAtIndex(args, 0);

packages/in_app_purchase/in_app_purchase_storekit/example/ios/Runner.xcodeproj/project.pbxproj

@@ -60,8 +60,6 @@
 		21CE6E615CF661FC0E18FB0A /* libPods-Runner.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-Runner.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
 		6458340B2CE3497379F6B389 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
-		784666492D4C4C64000A1A5F /* FlutterFramework */ = {isa = PBXFileReference; lastKnownFileType = wrapper; name = FlutterFramework; path = Flutter/ephemeral/Packages/.packages/FlutterFramework; sourceTree = "<group>"; };
-		78DABEA22ED26510000E7860 /* in_app_purchase_storekit */ = {isa = PBXFileReference; lastKnownFileType = wrapper; name = in_app_purchase_storekit; path = ../../darwin/in_app_purchase_storekit; sourceTree = "<group>"; };
 		78E0A7A72DC9AD7400C4905E /* FlutterGeneratedPluginSwiftPackage */ = {isa = PBXFileReference; lastKnownFileType = wrapper; name = FlutterGeneratedPluginSwiftPackage; path = Flutter/ephemeral/Packages/FlutterGeneratedPluginSwiftPackage; sourceTree = "<group>"; };
 		7AB7758EFACBE3E1E7BDE0C6 /* Pods-RunnerTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.debug.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.debug.xcconfig"; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
@@ -138,8 +136,6 @@
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				78DABEA22ED26510000E7860 /* in_app_purchase_storekit */,
-				784666492D4C4C64000A1A5F /* FlutterFramework */,
 				78E0A7A72DC9AD7400C4905E /* FlutterGeneratedPluginSwiftPackage */,
 				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
@@ -307,7 +303,7 @@
 			);
 			mainGroup = 97C146E51CF9000F007C117D;
 			packageReferences = (
-				781AD8BC2B33823900A9FFBB /* XCLocalSwiftPackageReference "FlutterGeneratedPluginSwiftPackage" */,
+				781AD8BC2B33823900A9FFBB /* XCLocalSwiftPackageReference "Flutter/ephemeral/Packages/FlutterGeneratedPluginSwiftPackage" */,
 			);
 			productRefGroup = 97C146EF1CF9000F007C117D /* Products */;
 			projectDirPath = "";
@@ -588,8 +584,10 @@
 			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
-				DEVELOPMENT_TEAM = "";
+				DEVELOPMENT_TEAM = S8QB4VV633;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -604,8 +602,9 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.plugins.inAppPurchaseExample;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.plugins.inAppPurchaseExample9;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Debug;
@@ -615,8 +614,10 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
-				DEVELOPMENT_TEAM = "";
+				DEVELOPMENT_TEAM = S8QB4VV633;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -631,8 +632,9 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.plugins.inAppPurchaseExample;
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.plugins.inAppPurchaseExample9;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Release;
@@ -649,8 +651,9 @@
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = "";
+				DEVELOPMENT_TEAM = S8QB4VV633;
 				INFOPLIST_FILE = RunnerTests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
@@ -680,8 +683,9 @@
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = "";
+				DEVELOPMENT_TEAM = S8QB4VV633;
 				INFOPLIST_FILE = RunnerTests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
@@ -730,7 +734,7 @@
 /* End XCConfigurationList section */
 
 /* Begin XCLocalSwiftPackageReference section */
-		781AD8BC2B33823900A9FFBB /* XCLocalSwiftPackageReference "FlutterGeneratedPluginSwiftPackage" */ = {
+		781AD8BC2B33823900A9FFBB /* XCLocalSwiftPackageReference "Flutter/ephemeral/Packages/FlutterGeneratedPluginSwiftPackage" */ = {
 			isa = XCLocalSwiftPackageReference;
 			relativePath = Flutter/ephemeral/Packages/FlutterGeneratedPluginSwiftPackage;
 		};

packages/in_app_purchase/in_app_purchase_storekit/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -44,6 +44,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
       shouldUseLaunchSchemeArgsEnv = "YES"
       codeCoverageEnabled = "YES">
       <MacroExpansion>
@@ -73,6 +74,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"

packages/in_app_purchase/in_app_purchase_storekit/example/ios/Runner/AppDelegate.h

@@ -5,6 +5,6 @@
 #import <Flutter/Flutter.h>
 #import <UIKit/UIKit.h>
 
-@interface AppDelegate : FlutterAppDelegate
+@interface AppDelegate : FlutterAppDelegate <FlutterImplicitEngineDelegate>
 
 @end

packages/in_app_purchase/in_app_purchase_storekit/example/ios/Runner/AppDelegate.m

@@ -9,9 +9,12 @@ @implementation AppDelegate
 
 - (BOOL)application:(UIApplication *)application
     didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-  [GeneratedPluginRegistrant registerWithRegistry:self];
   // Override point for customization after application launch.
   return [super application:application didFinishLaunchingWithOptions:launchOptions];
 }
 
+- (void)didInitializeImplicitFlutterEngine:(NSObject<FlutterImplicitEngineBridge> *)engineBridge {
+  [GeneratedPluginRegistrant registerWithRegistry:engineBridge.pluginRegistry];
+}
+
 @end

packages/in_app_purchase/in_app_purchase_storekit/example/ios/Runner/Info.plist

@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
 	<key>CFBundleExecutable</key>
@@ -22,6 +24,29 @@
 	<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>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>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>
@@ -39,9 +64,5 @@
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
-	<key>CADisableMinimumFrameDurationOnPhone</key>
-	<true/>
-	<key>UIApplicationSupportsIndirectInputEvents</key>
-	<true/>
 </dict>
 </plist>

packages/in_app_purchase/in_app_purchase_storekit/example/lib/main.dart

@@ -148,6 +148,7 @@ class _MyAppState extends State<_MyApp> {
             _buildConnectionCheckTile(),
             _buildProductList(),
             _buildConsumableBox(),
+            _buildCodeRedemptionButton(),
             _buildRestoreButton(),
           ],
         ),
@@ -429,6 +430,30 @@ class _MyAppState extends State<_MyApp> {
     );
   }
 
+  Widget _buildCodeRedemptionButton() {
+    if (_loading) {
+      return Container();
+    }
+
+    return Padding(
+      padding: const EdgeInsets.all(4.0),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.end,
+        children: <Widget>[
+          TextButton(
+            style: TextButton.styleFrom(
+              backgroundColor: Theme.of(context).colorScheme.primary,
+              foregroundColor: Colors.white,
+            ),
+            onPressed: () =>
+                _iapStoreKitPlatformAddition.presentCodeRedemptionSheet(),
+            child: const Text('Show code redemption sheet'),
+          ),
+        ],
+      ),
+    );
+  }
+
   Widget _buildRestoreButton() {
     if (_loading) {
       return Container();