diff --git a/packages/webview_flutter/webview_flutter/CHANGELOG.md b/packages/webview_flutter/webview_flutter/CHANGELOG.md
index dde4472..f8a6e25 100644
--- a/packages/webview_flutter/webview_flutter/CHANGELOG.md
+++ b/packages/webview_flutter/webview_flutter/CHANGELOG.md
@@ -1,5 +1,6 @@
-## NEXT
+## 3.0.2
 
+* Migrates deprecated `Scaffold.showSnackBar` to `ScaffoldMessenger` in example app.
 * Adds OS version support information to README.
 
 ## 3.0.1
diff --git a/packages/webview_flutter/webview_flutter/example/lib/main.dart b/packages/webview_flutter/webview_flutter/example/lib/main.dart
index 88c240a..51080be 100644
--- a/packages/webview_flutter/webview_flutter/example/lib/main.dart
+++ b/packages/webview_flutter/webview_flutter/example/lib/main.dart
@@ -13,7 +13,7 @@
 import 'package:path_provider/path_provider.dart';
 import 'package:webview_flutter/webview_flutter.dart';
 
-void main() => runApp(MaterialApp(home: WebViewExample()));
+void main() => runApp(const MaterialApp(home: WebViewExample()));
 
 const String kNavigationExamplePage = '''
 <!DOCTYPE html><html>
@@ -71,6 +71,10 @@
 ''';
 
 class WebViewExample extends StatefulWidget {
+  const WebViewExample({this.cookieManager});
+
+  final CookieManager? cookieManager;
+
   @override
   _WebViewExampleState createState() => _WebViewExampleState();
 }
@@ -96,42 +100,38 @@
         // This drop down menu demonstrates that Flutter widgets can be shown over the web view.
         actions: <Widget>[
           NavigationControls(_controller.future),
-          SampleMenu(_controller.future),
+          SampleMenu(_controller.future, widget.cookieManager),
         ],
       ),
-      // We're using a Builder here so we have a context that is below the Scaffold
-      // to allow calling Scaffold.of(context) so we can show a snackbar.
-      body: Builder(builder: (BuildContext context) {
-        return WebView(
-          initialUrl: 'https://flutter.dev',
-          javascriptMode: JavascriptMode.unrestricted,
-          onWebViewCreated: (WebViewController webViewController) {
-            _controller.complete(webViewController);
-          },
-          onProgress: (int progress) {
-            print('WebView is loading (progress : $progress%)');
-          },
-          javascriptChannels: <JavascriptChannel>{
-            _toasterJavascriptChannel(context),
-          },
-          navigationDelegate: (NavigationRequest request) {
-            if (request.url.startsWith('https://www.youtube.com/')) {
-              print('blocking navigation to $request}');
-              return NavigationDecision.prevent;
-            }
-            print('allowing navigation to $request');
-            return NavigationDecision.navigate;
-          },
-          onPageStarted: (String url) {
-            print('Page started loading: $url');
-          },
-          onPageFinished: (String url) {
-            print('Page finished loading: $url');
-          },
-          gestureNavigationEnabled: true,
-          backgroundColor: const Color(0x00000000),
-        );
-      }),
+      body: WebView(
+        initialUrl: 'https://flutter.dev',
+        javascriptMode: JavascriptMode.unrestricted,
+        onWebViewCreated: (WebViewController webViewController) {
+          _controller.complete(webViewController);
+        },
+        onProgress: (int progress) {
+          print('WebView is loading (progress : $progress%)');
+        },
+        javascriptChannels: <JavascriptChannel>{
+          _toasterJavascriptChannel(context),
+        },
+        navigationDelegate: (NavigationRequest request) {
+          if (request.url.startsWith('https://www.youtube.com/')) {
+            print('blocking navigation to $request}');
+            return NavigationDecision.prevent;
+          }
+          print('allowing navigation to $request');
+          return NavigationDecision.navigate;
+        },
+        onPageStarted: (String url) {
+          print('Page started loading: $url');
+        },
+        onPageFinished: (String url) {
+          print('Page finished loading: $url');
+        },
+        gestureNavigationEnabled: true,
+        backgroundColor: const Color(0x00000000),
+      ),
       floatingActionButton: favoriteButton(),
     );
   }
@@ -140,8 +140,7 @@
     return JavascriptChannel(
         name: 'Toaster',
         onMessageReceived: (JavascriptMessage message) {
-          // ignore: deprecated_member_use
-          Scaffold.of(context).showSnackBar(
+          ScaffoldMessenger.of(context).showSnackBar(
             SnackBar(content: Text(message.message)),
           );
         });
@@ -152,19 +151,24 @@
         future: _controller.future,
         builder: (BuildContext context,
             AsyncSnapshot<WebViewController> controller) {
-          if (controller.hasData) {
-            return FloatingActionButton(
-              onPressed: () async {
-                final String url = (await controller.data!.currentUrl())!;
-                // ignore: deprecated_member_use
-                Scaffold.of(context).showSnackBar(
-                  SnackBar(content: Text('Favorited $url')),
-                );
-              },
-              child: const Icon(Icons.favorite),
-            );
-          }
-          return Container();
+          return FloatingActionButton(
+            onPressed: () async {
+              String? url;
+              if (controller.hasData) {
+                url = (await controller.data!.currentUrl())!;
+              }
+              ScaffoldMessenger.of(context).showSnackBar(
+                SnackBar(
+                  content: Text(
+                    controller.hasData
+                        ? 'Favorited $url'
+                        : 'Unable to favorite',
+                  ),
+                ),
+              );
+            },
+            child: const Icon(Icons.favorite),
+          );
         });
   }
 }
@@ -186,10 +190,11 @@
 }
 
 class SampleMenu extends StatelessWidget {
-  SampleMenu(this.controller);
+  SampleMenu(this.controller, CookieManager? cookieManager)
+      : cookieManager = cookieManager ?? CookieManager();
 
   final Future<WebViewController> controller;
-  final CookieManager cookieManager = CookieManager();
+  late final CookieManager cookieManager;
 
   @override
   Widget build(BuildContext context) {
@@ -315,8 +320,7 @@
       WebViewController controller, BuildContext context) async {
     final String cookies =
         await controller.runJavascriptReturningResult('document.cookie');
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(SnackBar(
       content: Column(
         mainAxisAlignment: MainAxisAlignment.end,
         mainAxisSize: MainAxisSize.min,
@@ -332,8 +336,7 @@
       WebViewController controller, BuildContext context) async {
     await controller.runJavascript(
         'caches.open("test_caches_entry"); localStorage["test_localStorage"] = "dummy_entry";');
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(const SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
       content: Text('Added a test entry to cache.'),
     ));
   }
@@ -348,8 +351,7 @@
   Future<void> _onClearCache(
       WebViewController controller, BuildContext context) async {
     await controller.clearCache();
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(const SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
       content: Text('Cache cleared.'),
     ));
   }
@@ -360,8 +362,7 @@
     if (!hadCookies) {
       message = 'There are no cookies.';
     }
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(SnackBar(
       content: Text(message),
     ));
   }
@@ -375,7 +376,7 @@
 
   Future<void> _onSetCookie(
       WebViewController controller, BuildContext context) async {
-    await CookieManager().setCookie(
+    await cookieManager.setCookie(
       const WebViewCookie(
           name: 'foo', value: 'bar', domain: 'httpbin.org', path: '/anything'),
     );
@@ -466,8 +467,7 @@
                       if (await controller!.canGoBack()) {
                         await controller.goBack();
                       } else {
-                        // ignore: deprecated_member_use
-                        Scaffold.of(context).showSnackBar(
+                        ScaffoldMessenger.of(context).showSnackBar(
                           const SnackBar(content: Text('No back history item')),
                         );
                         return;
@@ -482,8 +482,7 @@
                       if (await controller!.canGoForward()) {
                         await controller.goForward();
                       } else {
-                        // ignore: deprecated_member_use
-                        Scaffold.of(context).showSnackBar(
+                        ScaffoldMessenger.of(context).showSnackBar(
                           const SnackBar(
                               content: Text('No forward history item')),
                         );
diff --git a/packages/webview_flutter/webview_flutter/example/test/main_test.dart b/packages/webview_flutter/webview_flutter/example/test/main_test.dart
new file mode 100644
index 0000000..8676333
--- /dev/null
+++ b/packages/webview_flutter/webview_flutter/example/test/main_test.dart
@@ -0,0 +1,39 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:webview_flutter/webview_flutter.dart';
+import 'package:webview_flutter_example/main.dart';
+
+void main() {
+  testWidgets('Test snackbar from ScaffoldMessenger',
+      (WidgetTester tester) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        home: WebViewExample(cookieManager: FakeCookieManager()),
+      ),
+    );
+    expect(find.byIcon(Icons.favorite), findsOneWidget);
+    await tester.tap(find.byIcon(Icons.favorite));
+    await tester.pump();
+    expect(find.byType(SnackBar), findsOneWidget);
+  });
+}
+
+class FakeCookieManager implements CookieManager {
+  factory FakeCookieManager() {
+    return _instance ??= FakeCookieManager._();
+  }
+
+  FakeCookieManager._();
+
+  static FakeCookieManager? _instance;
+
+  @override
+  Future<bool> clearCookies() => throw UnimplementedError();
+
+  @override
+  Future<void> setCookie(WebViewCookie cookie) => throw UnimplementedError();
+}
diff --git a/packages/webview_flutter/webview_flutter/pubspec.yaml b/packages/webview_flutter/webview_flutter/pubspec.yaml
index 322f4ad..1035098 100644
--- a/packages/webview_flutter/webview_flutter/pubspec.yaml
+++ b/packages/webview_flutter/webview_flutter/pubspec.yaml
@@ -2,7 +2,7 @@
 description: A Flutter plugin that provides a WebView widget on Android and iOS.
 repository: https://github.com/flutter/plugins/tree/main/packages/webview_flutter/webview_flutter
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 3.0.1
+version: 3.0.2
 
 environment:
   sdk: ">=2.14.0 <3.0.0"
diff --git a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
index ad81b0f..fb5a2b8 100644
--- a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
+++ b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.8.5
+
+* Migrates deprecated `Scaffold.showSnackBar` to `ScaffoldMessenger` in example app.
+
 ## 2.8.4
 
 * Fixes bug preventing `mockito` code generation for tests.
diff --git a/packages/webview_flutter/webview_flutter_android/example/lib/main.dart b/packages/webview_flutter/webview_flutter_android/example/lib/main.dart
index 0d0cd59..3dd107b 100644
--- a/packages/webview_flutter/webview_flutter_android/example/lib/main.dart
+++ b/packages/webview_flutter/webview_flutter_android/example/lib/main.dart
@@ -110,37 +110,33 @@
           _SampleMenu(_controller.future),
         ],
       ),
-      // We're using a Builder here so we have a context that is below the Scaffold
-      // to allow calling Scaffold.of(context) so we can show a snackbar.
-      body: Builder(builder: (BuildContext context) {
-        return WebView(
-          initialUrl: 'https://flutter.dev',
-          onWebViewCreated: (WebViewController controller) {
-            _controller.complete(controller);
-          },
-          onProgress: (int progress) {
-            print('WebView is loading (progress : $progress%)');
-          },
-          navigationDelegate: (NavigationRequest request) {
-            if (request.url.startsWith('https://www.youtube.com/')) {
-              print('blocking navigation to $request}');
-              return NavigationDecision.prevent;
-            }
-            print('allowing navigation to $request');
-            return NavigationDecision.navigate;
-          },
-          onPageStarted: (String url) {
-            print('Page started loading: $url');
-          },
-          onPageFinished: (String url) {
-            print('Page finished loading: $url');
-          },
-          javascriptChannels: _createJavascriptChannels(context),
-          javascriptMode: JavascriptMode.unrestricted,
-          userAgent: 'Custom_User_Agent',
-          backgroundColor: const Color(0x80000000),
-        );
-      }),
+      body: WebView(
+        initialUrl: 'https://flutter.dev',
+        onWebViewCreated: (WebViewController controller) {
+          _controller.complete(controller);
+        },
+        onProgress: (int progress) {
+          print('WebView is loading (progress : $progress%)');
+        },
+        navigationDelegate: (NavigationRequest request) {
+          if (request.url.startsWith('https://www.youtube.com/')) {
+            print('blocking navigation to $request}');
+            return NavigationDecision.prevent;
+          }
+          print('allowing navigation to $request');
+          return NavigationDecision.navigate;
+        },
+        onPageStarted: (String url) {
+          print('Page started loading: $url');
+        },
+        onPageFinished: (String url) {
+          print('Page finished loading: $url');
+        },
+        javascriptChannels: _createJavascriptChannels(context),
+        javascriptMode: JavascriptMode.unrestricted,
+        userAgent: 'Custom_User_Agent',
+        backgroundColor: const Color(0x80000000),
+      ),
       floatingActionButton: favoriteButton(),
     );
   }
@@ -154,8 +150,7 @@
             return FloatingActionButton(
               onPressed: () async {
                 final String url = (await controller.data!.currentUrl())!;
-                // ignore: deprecated_member_use
-                Scaffold.of(context).showSnackBar(
+                ScaffoldMessenger.of(context).showSnackBar(
                   SnackBar(content: Text('Favorited $url')),
                 );
               },
@@ -323,8 +318,7 @@
       WebViewController controller, BuildContext context) async {
     final String cookies =
         await controller.runJavascriptReturningResult('document.cookie');
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(SnackBar(
       content: Column(
         mainAxisAlignment: MainAxisAlignment.end,
         mainAxisSize: MainAxisSize.min,
@@ -340,8 +334,7 @@
       WebViewController controller, BuildContext context) async {
     await controller.runJavascript(
         'caches.open("test_caches_entry"); localStorage["test_localStorage"] = "dummy_entry";');
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(const SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
       content: Text('Added a test entry to cache.'),
     ));
   }
@@ -356,8 +349,7 @@
   Future<void> _onClearCache(
       WebViewController controller, BuildContext context) async {
     await controller.clearCache();
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(const SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
       content: Text('Cache cleared.'),
     ));
   }
@@ -369,8 +361,7 @@
     if (!hadCookies) {
       message = 'There are no cookies.';
     }
-    // ignore: deprecated_member_use
-    Scaffold.of(context).showSnackBar(SnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(SnackBar(
       content: Text(message),
     ));
   }
@@ -474,8 +465,7 @@
                       if (await controller!.canGoBack()) {
                         await controller.goBack();
                       } else {
-                        // ignore: deprecated_member_use
-                        Scaffold.of(context).showSnackBar(
+                        ScaffoldMessenger.of(context).showSnackBar(
                           const SnackBar(content: Text('No back history item')),
                         );
                         return;
@@ -490,8 +480,7 @@
                       if (await controller!.canGoForward()) {
                         await controller.goForward();
                       } else {
-                        // ignore: deprecated_member_use
-                        Scaffold.of(context).showSnackBar(
+                        ScaffoldMessenger.of(context).showSnackBar(
                           const SnackBar(
                               content: Text('No forward history item')),
                         );
diff --git a/packages/webview_flutter/webview_flutter_android/pubspec.yaml b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
index 5c3c83a..3fae698 100644
--- a/packages/webview_flutter/webview_flutter_android/pubspec.yaml
+++ b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
@@ -2,7 +2,7 @@
 description: A Flutter plugin that provides a WebView widget on Android.
 repository: https://github.com/flutter/plugins/tree/main/packages/webview_flutter/webview_flutter_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 2.8.4
+version: 2.8.5
 
 environment:
   sdk: ">=2.14.0 <3.0.0"
diff --git a/packages/webview_flutter/webview_flutter_wkwebview/CHANGELOG.md b/packages/webview_flutter/webview_flutter_wkwebview/CHANGELOG.md
index c3dd872..bad900d 100644
--- a/packages/webview_flutter/webview_flutter_wkwebview/CHANGELOG.md
+++ b/packages/webview_flutter/webview_flutter_wkwebview/CHANGELOG.md
@@ -1,6 +1,7 @@
-## NEXT
+## 2.7.2
 
 * Fixes an integration test race condition.
+* Migrates deprecated `Scaffold.showSnackBar` to `ScaffoldMessenger` in example app.
 
 ## 2.7.1
 
diff --git a/packages/webview_flutter/webview_flutter_wkwebview/example/lib/main.dart b/packages/webview_flutter/webview_flutter_wkwebview/example/lib/main.dart
index d4e0ec4..e126de8 100644
--- a/packages/webview_flutter/webview_flutter_wkwebview/example/lib/main.dart
+++ b/packages/webview_flutter/webview_flutter_wkwebview/example/lib/main.dart
@@ -105,27 +105,23 @@
           _SampleMenu(_controller.future),
         ],
       ),
-      // We're using a Builder here so we have a context that is below the Scaffold
-      // to allow calling Scaffold.of(context) so we can show a snackbar.
-      body: Builder(builder: (BuildContext context) {
-        return WebView(
-          initialUrl: 'https://flutter.dev/',
-          onWebViewCreated: (WebViewController controller) {
-            _controller.complete(controller);
-          },
-          javascriptChannels: _createJavascriptChannels(context),
-          javascriptMode: JavascriptMode.unrestricted,
-          navigationDelegate: (NavigationRequest request) {
-            if (request.url.startsWith('https://www.youtube.com/')) {
-              print('blocking navigation to $request}');
-              return NavigationDecision.prevent;
-            }
-            print('allowing navigation to $request');
-            return NavigationDecision.navigate;
-          },
-          backgroundColor: const Color(0x80000000),
-        );
-      }),
+      body: WebView(
+        initialUrl: 'https://flutter.dev/',
+        onWebViewCreated: (WebViewController controller) {
+          _controller.complete(controller);
+        },
+        javascriptChannels: _createJavascriptChannels(context),
+        javascriptMode: JavascriptMode.unrestricted,
+        navigationDelegate: (NavigationRequest request) {
+          if (request.url.startsWith('https://www.youtube.com/')) {
+            print('blocking navigation to $request}');
+            return NavigationDecision.prevent;
+          }
+          print('allowing navigation to $request');
+          return NavigationDecision.navigate;
+        },
+        backgroundColor: const Color(0x80000000),
+      ),
       floatingActionButton: favoriteButton(),
     );
   }
@@ -139,8 +135,7 @@
             return FloatingActionButton(
               onPressed: () async {
                 final String url = (await controller.data!.currentUrl())!;
-                // ignore: deprecated_member_use
-                Scaffold.of(context).showSnackBar(
+                ScaffoldMessenger.of(context).showSnackBar(
                   SnackBar(content: Text('Favorited $url')),
                 );
               },
@@ -456,8 +451,7 @@
                       if (await controller!.canGoBack()) {
                         await controller.goBack();
                       } else {
-                        // ignore: deprecated_member_use
-                        Scaffold.of(context).showSnackBar(
+                        ScaffoldMessenger.of(context).showSnackBar(
                           const SnackBar(content: Text('No back history item')),
                         );
                         return;
@@ -472,8 +466,7 @@
                       if (await controller!.canGoForward()) {
                         await controller.goForward();
                       } else {
-                        // ignore: deprecated_member_use
-                        Scaffold.of(context).showSnackBar(
+                        ScaffoldMessenger.of(context).showSnackBar(
                           const SnackBar(
                               content: Text('No forward history item')),
                         );
diff --git a/packages/webview_flutter/webview_flutter_wkwebview/pubspec.yaml b/packages/webview_flutter/webview_flutter_wkwebview/pubspec.yaml
index 219d6ce..75e7cca 100644
--- a/packages/webview_flutter/webview_flutter_wkwebview/pubspec.yaml
+++ b/packages/webview_flutter/webview_flutter_wkwebview/pubspec.yaml
@@ -2,7 +2,7 @@
 description: A Flutter plugin that provides a WebView widget based on Apple's WKWebView control.
 repository: https://github.com/flutter/plugins/tree/main/packages/webview_flutter/webview_flutter_wkwebview
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 2.7.1
+version: 2.7.2
 
 environment:
   sdk: ">=2.14.0 <3.0.0"