Navigator.of(context).pushNamed(RoutePaths.SLPASH)

class RoutePaths {
  static const String TAB = '/';
  static const String SPLASH = 'splash';
  static const String LOADING = 'loading';
  static const String RESULT = 'result';
}

class Router {
  static Route<dynamic> generateRoute(RouteSettings settings) {
    switch (settings.name) {
      case RoutePaths.TAB:
        return MaterialPageRoute<TabView>(builder: (_) => const TabView());
      case RoutePaths.SPLASH:
        return MaterialPageRoute<SplashView>(builder: (_) => SplashView());
      case RoutePaths.LOADING:
        return MaterialPageRoute<LoadingView>(
          builder: (_) =>
              LoadingView(tvshowDetails: settings.arguments as TvshowDetails),
        );
      case RoutePaths.RESULT:
        return MaterialPageRoute<ResultView>(
          builder: (_) =>
              ResultView(tvshowResult: settings.arguments as TvshowResult),
        );
      default:
        return MaterialPageRoute<dynamic>(
          builder: (_) => Scaffold(
            body: Center(
              child: Text('No route defined for ${settings.name}'),
            ),
          ),
        );
    }
  }
}

MaterialApp(initialRoute: RoutePaths.SPLASH,
        onGenerateRoute: Router.generateRoute,)