some changes

lib/views/login/pages/login_mobile_page.dart

@@ -9,9 +9,39 @@ import '../../../core/utils/size_config.dart';
 import '../../../view_models/auth_view_model.dart';
 import '../widgets/widgets.dart';
 
-class LoginMobilePage extends StatelessWidget {
+class LoginMobilePage extends StatefulWidget {
   const LoginMobilePage({super.key});
 
+  @override
+  State<LoginMobilePage> createState() => _LoginMobilePageState();
+}
+
+class _LoginMobilePageState extends State<LoginMobilePage> {
+  late final AuthViewModel viewModel;
+  @override
+  void initState() {
+    viewModel = context.read<AuthViewModel>();
+    viewModel.addListener(_viewModelListener);
+    super.initState();
+  }
+
+  void _viewModelListener() {
+    if (viewModel.loggedInUser != null) {
+      HomeRouteData().go(context);
+    }
+    if (viewModel.errorMessage != null) {
+      ScaffoldMessenger.of(
+        context,
+      ).showSnackBar(SnackBar(content: Text(viewModel.errorMessage!)));
+    }
+  }
+
+  @override
+  void dispose() {
+    viewModel.removeListener(_viewModelListener);
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -58,21 +88,11 @@ class LoginMobilePage extends StatelessWidget {
                   else
                     BaseButton(
                       isEnabled: viewModel.isLoginEnabled,
-                      onPressed:
-                          viewModel.isLoginEnabled
-                              ? () async {
-                                await viewModel.login();
-                                if (viewModel.loggedInUser != null) {
-                                  HomeRouteData().go(context);
-                                } else if (viewModel.errorMessage != null) {
-                                  ScaffoldMessenger.of(context).showSnackBar(
-                                    SnackBar(
-                                      content: Text(viewModel.errorMessage!),
-                                    ),
-                                  );
-                                }
-                              }
-                              : null,
+                      onPressed: () async {
+                        if (viewModel.isLoginEnabled) {
+                          await viewModel.login();
+                        }
+                      },
                     ),
                 ],
               );