При достижении страницы дашборда из spla sh ее бесконечное восстановление

Question

Приложение Flutter, использующее поставщика, перестраивает свою страницу информационной панели, по которой перемещается страница spla sh, если пользователь вошел в систему. Но страница приборной панели постоянно перестраивается. Обе страницы используют провайдера для прослушивания: true.

неисправная страница панели инструментов:

Это просто текст в центре страницы, показывающий адрес электронной почты пользователя.

main.dart

import 'package:flutter/material.dart';
import 'package:foodie/screens/about.dart';
import 'package:foodie/screens/dashboard.dart';
import 'package:foodie/screens/history.dart';
import 'package:foodie/screens/login.dart';
import 'package:foodie/screens/notification.dart';
import 'package:foodie/screens/profile.dart';
import 'package:foodie/screens/splash.dart';
import 'package:foodie/screens/wallet.dart';
import 'package:foodie/services/auth.dart';
import 'package:provider/provider.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MultiProvider(
      providers: [
        ChangeNotifierProvider<AuthService>(
          create: (context) => AuthService(),
        ),
      ],
      child: MaterialApp(
        title: 'Foodie',
        debugShowCheckedModeBanner: false,
        theme: ThemeData.light().copyWith(primaryColor: Colors.teal),
        darkTheme: ThemeData.dark(),
        routes: {
          '/': (_) => SplashScreen(),
          LoginScreen.routeName: (_) => LoginScreen(),
          SplashScreen.routeName: (_) => SplashScreen(),
          DashboardScreen.routeName: (_) => DashboardScreen(),
          ProfileScreen.routeName: (_) => ProfileScreen(),
          HistoryScreen.routeName: (_) => HistoryScreen(),
          WalletScreen.routeName: (_) => WalletScreen(),
          AboutScreen.routeName: (_) => AboutScreen(),
          NotificationScreen.routeName: (_) => NotificationScreen(),
        },
      ),
    );
  }
}

spla sh .dart

import 'package:flutter/material.dart';
import 'package:flutter_custom_clippers/flutter_custom_clippers.dart';
import 'package:foodie/components/loader.dart';
import 'package:foodie/screens/dashboard.dart';
import 'package:foodie/screens/login.dart';
import 'package:foodie/services/auth.dart';
import 'package:provider/provider.dart';

class SplashScreen extends StatelessWidget {
  static const routeName = '/splash-screen';

  @override
  Widget build(BuildContext context) {
    final authService = Provider.of<AuthService>(context);

    authService.trySignIn().then((success) {
      if (success == false) {
        Navigator.of(context).pushNamed(LoginScreen.routeName);
      } else {
        Navigator.pushNamed(context, DashboardScreen.routeName);
      }
    });

    return Scaffold(
      body: Column(
        mainAxisSize: MainAxisSize.max,
        children: [
          Expanded(
            flex: 2,
            child: ClipPath(
              clipper: OvalBottomBorderClipper(),
              child: Container(
                color: Theme.of(context).primaryColor,
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.stretch,
                  children: [
                    Image.asset('assets/images/logo.png'),
                    Text(
                      'Foodie',
                      style: Theme.of(context).textTheme.headline1.apply(
                            color: Theme.of(context).colorScheme.onPrimary,
                            fontSizeFactor: 0.75,
                          ),
                      textAlign: TextAlign.center,
                    ),
                  ],
                ),
              ),
            ),
          ),
          Expanded(
            flex: 1,
            child: Column(
              mainAxisSize: MainAxisSize.max,
              mainAxisAlignment: MainAxisAlignment.spaceAround,
              children: [
                Loader(),
              ],
            ),
          ),
        ],
      ),
    );
  }
}

auth.dart

import 'package:flutter/foundation.dart';
import 'package:foodie/models/user.dart';

import 'package:google_sign_in/google_sign_in.dart';

final FirebaseAuth _auth = FirebaseAuth.instance;
final GoogleSignIn googleSignIn = GoogleSignIn();

class AuthService extends ChangeNotifier {
  User _currentUser = User();

  User get currentUser => _currentUser;

  bool get isLoggedIn {
    return _currentUser.email != null;
  }

  set currentUser(User user) {
    _currentUser = user;
    notifyListeners();
  }

  Future<bool> signInWithGoogle() async {
    try {
      final GoogleSignInAccount googleSignInAccount =
          await googleSignIn.signIn();
      final GoogleSignInAuthentication googleSignInAuthentication =
          await googleSignInAccount.authentication;
      final AuthCredential credential = GoogleAuthProvider.getCredential(
        accessToken: googleSignInAuthentication.accessToken,
        idToken: googleSignInAuthentication.idToken,
      );
      final AuthResult authResult =
          await _auth.signInWithCredential(credential);
      final FirebaseUser user = authResult.user;
      assert(!user.isAnonymous);
      assert(await user.getIdToken() != null);

      final FirebaseUser firebaseUser = await _auth.currentUser();
      assert(user.uid == firebaseUser.uid);
      assert(user.email != null);
      assert(user.displayName != null);
      assert(user.photoUrl != null);

      currentUser = User(
        fullName: user.displayName,
        email: user.email,
        avatarUrl: user.photoUrl,
        id: user.uid,
      );
    } catch (error) {
      print(error);
      return false;
    }
    return true;
  }

  Future<bool> trySignIn() async {
    final FirebaseUser user = await _auth.currentUser();
    try {
      currentUser = User(
        fullName: user.displayName,
        email: user.email,
        avatarUrl: user.photoUrl,
        id: user.uid,
      );
    } catch (e) {
      return false;
    }
    return true;
  }

  Future<void> signOut() async {
    await googleSignIn.signOut();
    _auth.signOut();
    currentUser = User();
  }
}

dashboard.dart

import 'package:foodie/components/drawer.dart';
import 'package:foodie/services/auth.dart';
import 'package:provider/provider.dart';

class DashboardScreen extends StatelessWidget {
  static const routeName = '/dashboard-screen';

  @override
  Widget build(BuildContext context) {
    final currentUser =
        Provider.of<AuthService>(context, listen: false).currentUser;

    return Scaffold(
      appBar: AppBar(),
      drawer: DrawerMenu(
        context: context,
      ),
      body: Center(
        child: Text(
          currentUser.email,
          style: Theme.of(context).textTheme.headline5,
        ),
      ),
    );
  }
}