用户单击后退按钮后，颤振重新开始

Question

我正在创建的应用程序存在问题，当用户退出应用程序后，通过单击“后退”按钮，该页面会松开当前页面。即使如此，用户也没有清除他的手机缓存。

关于如何处理此问题的任何建议？

class MyApp extends StatelessWidget {
  const MyApp({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp( 
            theme: ThemeData(
              brightness: Brightness.light,
              primaryColor: Colors.red,
              fontFamily: 'Lato',
            ),
            home: new SplashScreen(),
    );
  }
}

class SplashScreen extends StatefulWidget {
  SplashScreen({Key key}) : super(key: key);

  @override
  _SplashScreenState createState() => _SplashScreenState();
}

class _SplashScreenState extends State<SplashScreen> {
   @override
  void initState() {  
   Timer(Duration(seconds: 2), () { 
       Navigator.of(context).pushReplacement(MaterialPageRoute(builder: (context) => Login()));
   });

    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return SplashScreenContainer();
  }
}

class Login extends StatelessWidget {
  const Login({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return FlatButton(
          onPressed: () {
              Navigator.of(context).pushAndRemoveUntil(
              MaterialPageRoute(builder: (context) => Home()),
              ModalRoute.withName("/Home"));
          },
          child: Text("Login"),
      );
  }
}


class Home extends StatelessWidget {
  const Home({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return HomeBase();
  }
}

当用户使用HomePage时，请单击“后退”按钮。他将退出应用程序。然后当他再次打开时，他需要启动屏幕