diff --git a/packages/webview_flutter_lwe/CHANGELOG.md b/packages/webview_flutter_lwe/CHANGELOG.md
index 50066e348..dcfdf3161 100644
--- a/packages/webview_flutter_lwe/CHANGELOG.md
+++ b/packages/webview_flutter_lwe/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 0.3.6
+* Update minimum Flutter and Dart version to 3.24 and 3.5.
+* Update the example main app.
+* Update webview_flutter to 4.10.0.
+* Update webview_flutter_platform_interface to 2.10.0.
+* Add removeJavaScriptChannel method call.
+* Fix deadlock issue caused by calling setBackgroundColor() after the WebViewController is created.
+
 ## 0.3.5
 
 * Fix an issue where platform channel isn't called on the main thread.
diff --git a/packages/webview_flutter_lwe/README.md b/packages/webview_flutter_lwe/README.md
index 29b66df3f..c715facd5 100644
--- a/packages/webview_flutter_lwe/README.md
+++ b/packages/webview_flutter_lwe/README.md
@@ -20,8 +20,8 @@ This package is not an _endorsed_ implementation of `webview_flutter`. Therefore
 
 ```yaml
 dependencies:
-  webview_flutter: ^4.4.2
-  webview_flutter_lwe: ^0.3.5
+  webview_flutter: ^4.10.0
+  webview_flutter_lwe: ^0.3.6
 ```
 
 ## Example
diff --git a/packages/webview_flutter_lwe/example/lib/main.dart b/packages/webview_flutter_lwe/example/lib/main.dart
index 5c20f15b5..a3507b23f 100644
--- a/packages/webview_flutter_lwe/example/lib/main.dart
+++ b/packages/webview_flutter_lwe/example/lib/main.dart
@@ -7,8 +7,8 @@
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
-import 'dart:typed_data';
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:webview_flutter/webview_flutter.dart';
@@ -108,13 +108,21 @@ class WebViewExample extends StatefulWidget {
 }
 
 class _WebViewExampleState extends State<WebViewExample> {
-  final WebViewController _controller = WebViewController();
+  late final WebViewController _controller;
 
   @override
   void initState() {
     super.initState();
 
-    _controller
+    // #docregion platform_features
+    late final PlatformWebViewControllerCreationParams params;
+    params = const PlatformWebViewControllerCreationParams();
+
+    final WebViewController controller =
+        WebViewController.fromPlatformCreationParams(params);
+    // #enddocregion platform_features
+
+    controller
       ..setJavaScriptMode(JavaScriptMode.unrestricted)
       ..setBackgroundColor(const Color(0x00000000))
       ..setNavigationDelegate(
@@ -138,7 +146,6 @@ Page resource error:
           ''');
           },
           onNavigationRequest: (NavigationRequest request) {
-            debugPrint('On onNavigationReques');
             if (request.url.startsWith('https://www.youtube.com/')) {
               debugPrint('blocking navigation to ${request.url}');
               return NavigationDecision.prevent;
@@ -146,6 +153,18 @@ Page resource error:
             debugPrint('allowing navigation to ${request.url}');
             return NavigationDecision.navigate;
           },
+          // Note: onHttpError is not supproted by LweWebview.
+          // onHttpError: (HttpResponseError error) {
+          //   debugPrint('Error occurred on page: ${error.response?.statusCode}');
+          // },
+          // Note: onUrlChange is not supproted by LweWebview.
+          // onUrlChange: (UrlChange change) {
+          //   debugPrint('url change to ${change.url}');
+          // },
+          // Note: onHttpAuthRequest is not supproted by LweWebview.
+          // onHttpAuthRequest: (HttpAuthRequest request) {
+          //   openDialog(request);
+          // },
         ),
       )
       ..addJavaScriptChannel(
@@ -157,6 +176,13 @@ Page resource error:
         },
       )
       ..loadRequest(Uri.parse('https://flutter.dev'));
+
+    // setBackgroundColor is not currently supported on macOS.
+    if (kIsWeb || !Platform.isMacOS) {
+      controller.setBackgroundColor(const Color(0x80000000));
+    }
+
+    _controller = controller;
   }
 
   @override
@@ -189,6 +215,62 @@ Page resource error:
       child: const Icon(Icons.favorite),
     );
   }
+
+  Future<void> openDialog(HttpAuthRequest httpRequest) async {
+    final TextEditingController usernameTextController =
+        TextEditingController();
+    final TextEditingController passwordTextController =
+        TextEditingController();
+
+    return showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          title: Text('${httpRequest.host}: ${httpRequest.realm ?? '-'}'),
+          content: SingleChildScrollView(
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: <Widget>[
+                TextField(
+                  decoration: const InputDecoration(labelText: 'Username'),
+                  autofocus: true,
+                  controller: usernameTextController,
+                ),
+                TextField(
+                  decoration: const InputDecoration(labelText: 'Password'),
+                  controller: passwordTextController,
+                ),
+              ],
+            ),
+          ),
+          actions: <Widget>[
+            // Explicitly cancel the request on iOS as the OS does not emit new
+            // requests when a previous request is pending.
+            TextButton(
+              onPressed: () {
+                httpRequest.onCancel();
+                Navigator.of(context).pop();
+              },
+              child: const Text('Cancel'),
+            ),
+            TextButton(
+              onPressed: () {
+                httpRequest.onProceed(
+                  WebViewCredential(
+                    user: usernameTextController.text,
+                    password: passwordTextController.text,
+                  ),
+                );
+                Navigator.of(context).pop();
+              },
+              child: const Text('Authenticate'),
+            ),
+          ],
+        );
+      },
+    );
+  }
 }
 
 enum MenuOptions {
@@ -206,6 +288,7 @@ enum MenuOptions {
   transparentBackground,
   setCookie,
   logExample,
+  basicAuthentication,
 }
 
 class SampleMenu extends StatelessWidget {
@@ -251,6 +334,8 @@ class SampleMenu extends StatelessWidget {
             _onSetCookie();
           case MenuOptions.logExample:
             _onLogExample();
+          case MenuOptions.basicAuthentication:
+            _promptForUrl(context);
         }
       },
       itemBuilder: (BuildContext context) => <PopupMenuItem<MenuOptions>>[
@@ -311,6 +396,10 @@ class SampleMenu extends StatelessWidget {
           value: MenuOptions.logExample,
           child: Text('Log example'),
         ),
+        const PopupMenuItem<MenuOptions>(
+          value: MenuOptions.basicAuthentication,
+          child: Text('Basic Authentication Example'),
+        ),
       ],
     );
   }
@@ -465,6 +554,38 @@ class SampleMenu extends StatelessWidget {
 
     return webViewController.loadHtmlString(kLogExamplePage);
   }
+
+  Future<void> _promptForUrl(BuildContext context) {
+    final TextEditingController urlTextController = TextEditingController();
+
+    return showDialog<String>(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          title: const Text('Input URL to visit'),
+          content: TextField(
+            decoration: const InputDecoration(labelText: 'URL'),
+            autofocus: true,
+            controller: urlTextController,
+          ),
+          actions: <Widget>[
+            TextButton(
+              onPressed: () {
+                if (urlTextController.text.isNotEmpty) {
+                  final Uri? uri = Uri.tryParse(urlTextController.text);
+                  if (uri != null && uri.scheme.isNotEmpty) {
+                    webViewController.loadRequest(uri);
+                    Navigator.pop(context);
+                  }
+                }
+              },
+              child: const Text('Visit'),
+            ),
+          ],
+        );
+      },
+    );
+  }
 }
 
 class NavigationControls extends StatelessWidget {
diff --git a/packages/webview_flutter_lwe/example/pubspec.yaml b/packages/webview_flutter_lwe/example/pubspec.yaml
index 058680a4e..f4690ad55 100644
--- a/packages/webview_flutter_lwe/example/pubspec.yaml
+++ b/packages/webview_flutter_lwe/example/pubspec.yaml
@@ -3,8 +3,8 @@ description: Demonstrates how to use the webview_flutter_lwe plugin.
 publish_to: "none"
 
 environment:
-  sdk: ">=3.1.0 <4.0.0"
-  flutter: ">=3.13.0"
+  sdk: ^3.5.0
+  flutter: ">=3.24.0"
 
 dependencies:
   flutter:
@@ -12,7 +12,7 @@ dependencies:
   path_provider: ^2.0.7
   path_provider_tizen:
     path: ../../path_provider/
-  webview_flutter: ^4.4.2
+  webview_flutter: ^4.10.0
   webview_flutter_lwe:
     path: ../
 
diff --git a/packages/webview_flutter_lwe/lib/src/lwe_webview.dart b/packages/webview_flutter_lwe/lib/src/lwe_webview.dart
index fe3747a00..cdf139652 100644
--- a/packages/webview_flutter_lwe/lib/src/lwe_webview.dart
+++ b/packages/webview_flutter_lwe/lib/src/lwe_webview.dart
@@ -169,12 +169,35 @@ class LweWebView {
   /// Adds a new JavaScript channel to the set of enabled channels.
   Future<void> addJavaScriptChannel(
       JavaScriptChannelParams javaScriptChannelParams) {
+    // When JavaScript channel with the same name exists make sure to remove it
+    // before registering the new channel.
+    if (_javaScriptChannelParams.containsKey(javaScriptChannelParams.name)) {
+      _invokeChannelMethod<void>(
+          'removeJavaScriptChannel', javaScriptChannelParams.name);
+    }
+
     _javaScriptChannelParams[javaScriptChannelParams.name] =
         javaScriptChannelParams;
+
     return _invokeChannelMethod<void>(
         'addJavaScriptChannel', javaScriptChannelParams.name);
   }
 
+  /// Removes the JavaScript channel with the matching name from the set of
+  /// enabled channels.
+  Future<void> removeJavaScriptChannel(String javaScriptChannelName) async {
+    final JavaScriptChannelParams? params =
+        _javaScriptChannelParams[javaScriptChannelName];
+
+    if (params == null) {
+      return;
+    }
+
+    _javaScriptChannelParams.remove(javaScriptChannelName);
+    return _invokeChannelMethod<void>(
+        'removeJavaScriptChannel', javaScriptChannelName);
+  }
+
   /// Runs the given JavaScript in the context of the current page.
   Future<void> runJavaScript(String javaScript) =>
       _invokeChannelMethod<void>('runJavaScript', javaScript);
diff --git a/packages/webview_flutter_lwe/lib/src/lwe_webview_controller.dart b/packages/webview_flutter_lwe/lib/src/lwe_webview_controller.dart
index dd0074034..cbda3d7df 100644
--- a/packages/webview_flutter_lwe/lib/src/lwe_webview_controller.dart
+++ b/packages/webview_flutter_lwe/lib/src/lwe_webview_controller.dart
@@ -62,14 +62,6 @@ class LweWebViewController extends PlatformWebViewController {
           'LoadRequestParams#uri is required to have a scheme.');
     }
 
-    if (params.headers.isNotEmpty) {
-      throw ArgumentError('LoadRequestParams#headers is not supported.');
-    }
-
-    if (params.body != null) {
-      throw ArgumentError('LoadRequestParams#body is not supported.');
-    }
-
     switch (params.method) {
       case LoadRequestMethod.get:
         return _webview.loadRequest(params.uri.toString());
@@ -132,6 +124,13 @@ class LweWebViewController extends PlatformWebViewController {
   @override
   Future<Offset> getScrollPosition() => _webview.getScrollPosition();
 
+  @override
+  Future<void> enableZoom(bool enabled) {
+    throw UnimplementedError(
+        'This version of `LweWebViewController` currently has no '
+        'implementation of `enableZoom`.');
+  }
+
   @override
   Future<void> setBackgroundColor(Color color) =>
       _webview.setBackgroundColor(color);
@@ -148,6 +147,10 @@ class LweWebViewController extends PlatformWebViewController {
           JavaScriptChannelParams javaScriptChannelParams) =>
       _webview.addJavaScriptChannel(javaScriptChannelParams);
 
+  @override
+  Future<void> removeJavaScriptChannel(String javaScriptChannelName) =>
+      _webview.removeJavaScriptChannel(javaScriptChannelName);
+
   @override
   Future<void> runJavaScript(String javaScript) =>
       _webview.runJavaScript(javaScript);
@@ -160,6 +163,15 @@ class LweWebViewController extends PlatformWebViewController {
   Future<void> setUserAgent(String? userAgent) =>
       _webview.setUserAgent(userAgent);
 
+  @override
+  Future<void> setOnScrollPositionChange(
+      void Function(ScrollPositionChange scrollPositionChange)?
+          onScrollPositionChange) async {
+    throw UnimplementedError(
+        'This version of `LweWebViewController` currently has no '
+        'implementation of `setOnScrollPositionChange`.');
+  }
+
   @override
   Future<String?> getUserAgent() => _webview.getUserAgent();
 
@@ -186,6 +198,33 @@ class LweWebViewController extends PlatformWebViewController {
         'This version of `LweWebViewController` currently has no '
         'implementation of `setOnConsoleMessage`.');
   }
+
+  @override
+  Future<void> setOnJavaScriptAlertDialog(
+      Future<void> Function(JavaScriptAlertDialogRequest request)
+          onJavaScriptAlertDialog) async {
+    throw UnimplementedError(
+        'This version of `LweWebViewController` currently has no '
+        'implementation of `setOnJavaScriptAlertDialog`.');
+  }
+
+  @override
+  Future<void> setOnJavaScriptConfirmDialog(
+      Future<bool> Function(JavaScriptConfirmDialogRequest request)
+          onJavaScriptConfirmDialog) async {
+    throw UnimplementedError(
+        'This version of `LweWebViewController` currently has no '
+        'implementation of `setOnJavaScriptConfirmDialog`.');
+  }
+
+  @override
+  Future<void> setOnJavaScriptTextInputDialog(
+      Future<String> Function(JavaScriptTextInputDialogRequest request)
+          onJavaScriptTextInputDialog) async {
+    throw UnimplementedError(
+        'This version of `LweWebViewController` currently has no '
+        'implementation of `setOnJavaScriptTextInputDialog`.');
+  }
 }
 
 /// An implementation of [PlatformWebViewWidget] with the Lightweight Web Engine.
@@ -328,6 +367,7 @@ class LweNavigationDelegate extends PlatformNavigationDelegate {
     _navigationDelegateChannel.setMethodCallHandler((MethodCall call) async {
       final Map<String, Object?> arguments =
           (call.arguments as Map<Object?, Object?>).cast<String, Object?>();
+
       switch (call.method) {
         case 'navigationRequest':
           return _handleNavigation(arguments['url']! as String,
@@ -416,6 +456,15 @@ class LweNavigationDelegate extends PlatformNavigationDelegate {
     _onPageFinished = onPageFinished;
   }
 
+  @override
+  Future<void> setOnHttpError(
+    HttpResponseErrorCallback onHttpError,
+  ) async {
+    throw UnimplementedError(
+        'This version of `LweNavigationDelegate` currently has no '
+        'implementation for `setOnHttpError`');
+  }
+
   @override
   Future<void> setOnProgress(
     ProgressCallback onProgress,
@@ -432,9 +481,17 @@ class LweNavigationDelegate extends PlatformNavigationDelegate {
 
   @override
   Future<void> setOnUrlChange(UrlChangeCallback onUrlChange) async {
-    // The current version of LWE does not provide any functionality related to a 'url change'.
     throw UnimplementedError(
         'This version of `LweNavigationDelegate` currently has no '
-        'implementation of `setOnConsoleMessage`.');
+        'implementation for `setOnUrlChange`');
+  }
+
+  @override
+  Future<void> setOnHttpAuthRequest(
+    HttpAuthRequestCallback onHttpAuthRequest,
+  ) async {
+    throw UnimplementedError(
+        'This version of `LweNavigationDelegate` currently has no '
+        'implementation for `setOnHttpAuthRequest`');
   }
 }
diff --git a/packages/webview_flutter_lwe/pubspec.yaml b/packages/webview_flutter_lwe/pubspec.yaml
index b61fb6a29..b6d3704be 100644
--- a/packages/webview_flutter_lwe/pubspec.yaml
+++ b/packages/webview_flutter_lwe/pubspec.yaml
@@ -2,11 +2,11 @@ name: webview_flutter_lwe
 description: Tizen implementation of the webview_flutter plugin backed by Lightweight Web Engine.
 homepage: https://github.com/flutter-tizen/plugins
 repository: https://github.com/flutter-tizen/plugins/tree/master/packages/webview_flutter_lwe
-version: 0.3.5
+version: 0.3.6
 
 environment:
-  sdk: ">=3.1.0 <4.0.0"
-  flutter: ">=3.13.0"
+  sdk: ^3.5.0
+  flutter: ">=3.24.0"
 
 flutter:
   plugin:
@@ -20,8 +20,8 @@ dependencies:
   flutter:
     sdk: flutter
   flutter_tizen: ^0.2.1
-  webview_flutter: ^4.4.2
-  webview_flutter_platform_interface: ^2.6.0
+  webview_flutter: ^4.10.0
+  webview_flutter_platform_interface: ^2.10.0
 
 topics:
   - html
diff --git a/packages/webview_flutter_lwe/tizen/src/message_dispatcher.cc b/packages/webview_flutter_lwe/tizen/src/message_dispatcher.cc
index 2d29d05b7..c6bc04c88 100644
--- a/packages/webview_flutter_lwe/tizen/src/message_dispatcher.cc
+++ b/packages/webview_flutter_lwe/tizen/src/message_dispatcher.cc
@@ -10,11 +10,22 @@ MessageDispatcher::MessageDispatcher() { ecore_init(); }
 MessageDispatcher::~MessageDispatcher() { ecore_shutdown(); }
 
 void MessageDispatcher::dispatchTaskOnMainThread(std::function<void()>&& fn) {
-  ecore_main_loop_thread_safe_call_sync(
-      [](void* data) -> void* {
-        auto fn = static_cast<std::function<void()>*>(data);
-        if (fn) (*fn)();
-        return nullptr;
+  struct Param {
+    std::function<void()> fn;
+  };
+  Param* p = new Param({std::move(fn)});
+
+  ecore_main_loop_thread_safe_call_async(
+      [](void* data) -> void {
+        ecore_timer_add(
+            0.0,
+            [](void* data) -> Eina_Bool {
+              auto* p = static_cast<Param*>(data);
+              p->fn();
+              delete p;
+              return ECORE_CALLBACK_CANCEL;
+            },
+            data);
       },
-      &fn);
+      p);
 }
diff --git a/packages/webview_flutter_lwe/tizen/src/webview.cc b/packages/webview_flutter_lwe/tizen/src/webview.cc
index 118f82bbd..7989a7ac6 100644
--- a/packages/webview_flutter_lwe/tizen/src/webview.cc
+++ b/packages/webview_flutter_lwe/tizen/src/webview.cc
@@ -153,7 +153,7 @@ WebView::WebView(flutter::PluginRegistrar* registrar, int view_id,
         flutter::EncodableMap args = {
             {flutter::EncodableValue("url"), flutter::EncodableValue(url)}};
 
-        dispatcher_->dispatchTaskOnMainThread([this, &args]() {
+        dispatcher_->dispatchTaskOnMainThread([this, args]() {
           navigation_delegate_channel_->InvokeMethod(
               "onPageStarted", std::make_unique<flutter::EncodableValue>(args));
         });
@@ -163,7 +163,7 @@ WebView::WebView(flutter::PluginRegistrar* registrar, int view_id,
         flutter::EncodableMap args = {
             {flutter::EncodableValue("url"), flutter::EncodableValue(url)}};
 
-        dispatcher_->dispatchTaskOnMainThread([this, &args]() {
+        dispatcher_->dispatchTaskOnMainThread([this, args]() {
           navigation_delegate_channel_->InvokeMethod(
               "onPageFinished",
               std::make_unique<flutter::EncodableValue>(args));
@@ -174,7 +174,7 @@ WebView::WebView(flutter::PluginRegistrar* registrar, int view_id,
         flutter::EncodableMap args = {{flutter::EncodableValue("progress"),
                                        flutter::EncodableValue(progress)}};
 
-        dispatcher_->dispatchTaskOnMainThread([this, &args]() {
+        dispatcher_->dispatchTaskOnMainThread([this, args]() {
           navigation_delegate_channel_->InvokeMethod(
               "onProgress", std::make_unique<flutter::EncodableValue>(args));
         });
@@ -189,8 +189,7 @@ WebView::WebView(flutter::PluginRegistrar* registrar, int view_id,
             {flutter::EncodableValue("failingUrl"),
              flutter::EncodableValue(error.GetUrl())},
         };
-
-        dispatcher_->dispatchTaskOnMainThread([this, &args]() {
+        dispatcher_->dispatchTaskOnMainThread([this, args]() {
           navigation_delegate_channel_->InvokeMethod(
               "onWebResourceError",
               std::make_unique<flutter::EncodableValue>(args));
@@ -207,7 +206,7 @@ WebView::WebView(flutter::PluginRegistrar* registrar, int view_id,
              flutter::EncodableValue(true)},
         };
 
-        dispatcher_->dispatchTaskOnMainThread([this, &args, url]() {
+        dispatcher_->dispatchTaskOnMainThread([this, args, url]() {
           auto result = std::make_unique<NavigationRequestResult>(url, this);
           navigation_delegate_channel_->InvokeMethod(
               "navigationRequest",
@@ -231,7 +230,8 @@ void WebView::RegisterJavaScriptChannelName(const std::string& name) {
         {flutter::EncodableValue("channel"), flutter::EncodableValue(name)},
         {flutter::EncodableValue("message"), flutter::EncodableValue(message)},
     };
-    dispatcher_->dispatchTaskOnMainThread([this, &args]() {
+
+    dispatcher_->dispatchTaskOnMainThread([this, args]() {
       webview_channel_->InvokeMethod(
           "javaScriptChannelMessage",
           std::make_unique<flutter::EncodableValue>(args));
@@ -241,6 +241,10 @@ void WebView::RegisterJavaScriptChannelName(const std::string& name) {
   webview_instance_->AddJavaScriptInterface(name, "postMessage", on_message);
 }
 
+void WebView::UnregisterJavaScriptChannelName(const std::string& name) {
+  webview_instance_->RemoveJavascriptInterface(name, "postMessage");
+}
+
 WebView::~WebView() { Dispose(); }
 
 std::string WebView::GetWebViewChannelName() {
@@ -583,6 +587,14 @@ void WebView::InitWebView() {
 #endif
 }
 
+template <typename T>
+void WebView::SetBackgroundColor(const T& color) {
+  LWE::Settings settings = webview_instance_->GetSettings();
+  settings.SetBaseBackgroundColor(color >> 16 & 0xff, color >> 8 & 0xff,
+                                  color & 0xff, color >> 24 & 0xff);
+  webview_instance_->SetSettings(settings);
+}
+
 void WebView::HandleWebViewMethodCall(const FlMethodCall& method_call,
                                       std::unique_ptr<FlMethodResult> result) {
   if (!webview_instance_) {
@@ -655,6 +667,12 @@ void WebView::HandleWebViewMethodCall(const FlMethodCall& method_call,
       RegisterJavaScriptChannelName(*channel);
     }
     result->Success();
+  } else if (method_name == "removeJavaScriptChannel") {
+    const auto* channel = std::get_if<std::string>(arguments);
+    if (channel) {
+      UnregisterJavaScriptChannelName(*channel);
+    }
+    result->Success();
   } else if (method_name == "clearCache") {
     webview_instance_->ClearCache();
     result->Success();
@@ -725,13 +743,15 @@ void WebView::HandleWebViewMethodCall(const FlMethodCall& method_call,
       result->Error("Invalid argument", "The argument must be a string.");
     }
   } else if (method_name == "backgroundColor") {
-    const auto* color = std::get_if<int32_t>(arguments);
-    if (color) {
-      LWE::Settings settings = webview_instance_->GetSettings();
-      settings.SetBaseBackgroundColor(*color >> 16 & 0xff, *color >> 8 & 0xff,
-                                      *color & 0xff, *color >> 24 & 0xff);
-      webview_instance_->SetSettings(settings);
+    if (std::holds_alternative<int32_t>(*arguments)) {
+      SetBackgroundColor(std::get<int32_t>(*arguments));
       result->Success();
+    } else if (std::holds_alternative<int64_t>(*arguments)) {
+      SetBackgroundColor(std::get<int64_t>(*arguments));
+      result->Success();
+    } else {
+      result->Error("Invalid argument",
+                    "The argument must be a int32_t or int64_t.");
     }
   } else if (method_name == "setUserAgent") {
     const auto* user_agent = std::get_if<std::string>(arguments);
diff --git a/packages/webview_flutter_lwe/tizen/src/webview.h b/packages/webview_flutter_lwe/tizen/src/webview.h
index 0f2064c87..eae0a6eab 100644
--- a/packages/webview_flutter_lwe/tizen/src/webview.h
+++ b/packages/webview_flutter_lwe/tizen/src/webview.h
@@ -61,7 +61,11 @@ class WebView : public PlatformView {
   void HandleCookieMethodCall(const FlMethodCall& method_call,
                               std::unique_ptr<FlMethodResult> result);
 
+  template <typename T>
+  void SetBackgroundColor(const T& color);
+
   void RegisterJavaScriptChannelName(const std::string& name);
+  void UnregisterJavaScriptChannelName(const std::string& name);
   std::string GetWebViewChannelName();
   std::string GetNavigationDelegateChannelName();