chore: fix warnings after latest flutter version (#17640)

Author: Lyokone

packages/firebase_ai/firebase_ai/example/lib/main.dart

@@ -12,24 +12,24 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import 'package:firebase_core/firebase_core.dart';
-import 'package:firebase_auth/firebase_auth.dart';
 import 'package:firebase_ai/firebase_ai.dart';
+import 'package:firebase_auth/firebase_auth.dart';
+import 'package:firebase_core/firebase_core.dart';
 import 'package:flutter/material.dart';
 
+import 'pages/audio_page.dart';
+import 'pages/bidi_page.dart';
 // Import after file is generated through flutterfire_cli.
 // import 'package:firebase_ai_example/firebase_options.dart';
 
 import 'pages/chat_page.dart';
-import 'pages/audio_page.dart';
+import 'pages/document.dart';
 import 'pages/function_calling_page.dart';
 import 'pages/image_prompt_page.dart';
-import 'pages/token_count_page.dart';
-import 'pages/schema_page.dart';
 import 'pages/imagen_page.dart';
-import 'pages/document.dart';
+import 'pages/schema_page.dart';
+import 'pages/token_count_page.dart';
 import 'pages/video_page.dart';
-import 'pages/bidi_page.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -230,7 +230,7 @@ class _HomeScreenState extends State<HomeScreen> {
                   onChanged: widget.onBackendChanged,
                   activeTrackColor: Colors.green.withValues(alpha: 0.5),
                   inactiveTrackColor: Colors.blueGrey.withValues(alpha: 0.5),
-                  activeColor: Colors.green,
+                  activeThumbColor: Colors.green,
                   inactiveThumbColor: Colors.blueGrey,
                 ),
                 Text(

packages/firebase_auth/firebase_auth/example/lib/auth.dart

@@ -12,9 +12,9 @@ import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_facebook_auth/flutter_facebook_auth.dart';
 import 'package:flutter_signin_button/flutter_signin_button.dart';
 import 'package:google_sign_in/google_sign_in.dart';
-import 'package:flutter_facebook_auth/flutter_facebook_auth.dart';
 
 typedef OAuthSignIn = void Function();
 
@@ -256,7 +256,7 @@ class _AuthGateState extends State<AuthGate> {
                                             height: 50,
                                             child: SignInButton(
                                               button,
-                                              onPressed: authButtons[button]!,
+                                              onPressed: authButtons[button],
                                             ),
                                           ),
                                   ),

packages/firebase_data_connect/firebase_data_connect/lib/src/core/ref.dart

@@ -56,7 +56,7 @@ abstract class OperationRef<Data, Variables> {
   Future<bool> _shouldRetry() async {
     String? newToken;
     try {
-      newToken = await this.dataConnect.auth?.currentUser?.getIdToken();
+      newToken = await dataConnect.auth?.currentUser?.getIdToken();
     } catch (e) {
       // Don't retry if there was an issue getting the ID Token.
       log('There was an error attempting to retrieve the ID Token: $e');
@@ -152,12 +152,12 @@ class QueryRef<Data, Variables> extends OperationRef<Data, Variables> {
   Future<QueryResult<Data, Variables>> execute() async {
     bool shouldRetry = await _shouldRetry();
     try {
-      QueryResult<Data, Variables> r = await this._executeOperation(_lastToken);
+      QueryResult<Data, Variables> r = await _executeOperation(_lastToken);
       return r;
     } on DataConnectError catch (e) {
       if (shouldRetry &&
           e.code == DataConnectErrorCode.unauthorized.toString()) {
-        return this.execute();
+        return execute();
       } else {
         rethrow;
       }
@@ -201,7 +201,7 @@ class QueryRef<Data, Variables> extends OperationRef<Data, Variables> {
         .cast<QueryResult<Data, Variables>>();
     if (_queryManager.containsQuery(operationName, variables, varsSerialized)) {
       try {
-        this.execute();
+        execute();
       } catch (_) {
         // Call to `execute` should properly pass the error to the Stream.
         log('Error thrown by execute. The error will propagate via onError.');
@@ -234,13 +234,12 @@ class MutationRef<Data, Variables> extends OperationRef<Data, Variables> {
     try {
       // Logic below is duplicated due to the fact that `executeOperation` returns
       // an `OperationResult` here, and `QueryRef` expects a `QueryResult`.
-      OperationResult<Data, Variables> r =
-          await this._executeOperation(_lastToken);
+      OperationResult<Data, Variables> r = await _executeOperation(_lastToken);
       return r;
     } on DataConnectError catch (e) {
       if (shouldRetry &&
           e.code == DataConnectErrorCode.unauthorized.toString()) {
-        return this.execute();
+        return execute();
       } else {
         rethrow;
       }

packages/firebase_vertexai/firebase_vertexai/example/lib/main.dart

@@ -12,25 +12,25 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import 'package:firebase_core/firebase_core.dart';
-import 'package:firebase_auth/firebase_auth.dart';
 import 'package:firebase_ai/firebase_ai.dart';
+import 'package:firebase_auth/firebase_auth.dart';
+import 'package:firebase_core/firebase_core.dart';
 import 'package:firebase_vertexai/firebase_vertexai.dart';
 import 'package:flutter/material.dart';
 
+import 'pages/audio_page.dart';
+import 'pages/bidi_page.dart';
 // Import after file is generated through flutterfire_cli.
 // import 'package:vertex_ai_example/firebase_options.dart';
 
 import 'pages/chat_page.dart';
-import 'pages/audio_page.dart';
+import 'pages/document.dart';
 import 'pages/function_calling_page.dart';
 import 'pages/image_prompt_page.dart';
-import 'pages/token_count_page.dart';
-import 'pages/schema_page.dart';
 import 'pages/imagen_page.dart';
-import 'pages/document.dart';
+import 'pages/schema_page.dart';
+import 'pages/token_count_page.dart';
 import 'pages/video_page.dart';
-import 'pages/bidi_page.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -232,7 +232,7 @@ class _HomeScreenState extends State<HomeScreen> {
                   onChanged: widget.onBackendChanged,
                   activeTrackColor: Colors.green.withValues(alpha: 0.5),
                   inactiveTrackColor: Colors.blueGrey.withValues(alpha: 0.5),
-                  activeColor: Colors.green,
+                  activeThumbColor: Colors.green,
                   inactiveThumbColor: Colors.blueGrey,
                 ),
                 Text(