Flutter fish_redux框架返回指定的页面

Widget createApp() {
  return MaterialApp(
      title: 'xxxx',
      theme: ThemeData(
        primarySwatch:
            ColorsUtil.colorToMaterialColor(Global.naviBackgroundColor),
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      debugShowCheckedModeBanner: false,
      home: AppRoute.global.buildPage(RoutePath.root_page, null),
      onGenerateRoute: (RouteSettings settings) {
        return MaterialPageRoute<Object>(
            builder: (BuildContext context) {
              return AppRoute.global
                  .buildPage(settings.name, settings.arguments);
            },
            settings: settings);
      });
}

 Navigator.popUntil(context, ModalRoute.withName(popPageName));