正确 Flutter 小部件序列以在应用加载时提取数据

当我试图在应用程序加载时从本地存储读取数据时，我遇到了Ffltter的问题.

我有一个继承的小部件，它保存当前用户的身份验证信息.当应用加载时，我想查看本地存储中的会话令牌.如果会话令牌存在，我想用这些信息更新继承的小部件.

我的屏幕是动态的.如果它知道用户已通过身份验证，则会将用户带到请求屏幕，否则会将用户带到注册屏幕.

我遇到的问题是，我无法从依赖于继承的小部件(我的路由小部件)的小部件(我的路由小部件)的initState()方法更新继承小部件的状态

当应用程序加载和更新继承的小部件时，我如何从本地存储中读取？

运行APP时出错:

flutter: ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
flutter: The following assertion was thrown building _InheritedAuthContainer:
flutter: inheritFromWidgetOfExactType(_InheritedAuthContainer) or inheritFromElement() was called before
flutter: RootState.initState() completed.
flutter: When an inherited widget changes, for example if the value of Theme.of() changes, its dependent
flutter: widgets are rebuilt. If the dependent widget's reference to the inherited widget is in a constructor
flutter: or an initState() method, then the rebuilt dependent widget will not reflect the changes in the
flutter: inherited widget.
flutter: Typically references to inherited widgets should occur in widget build() methods. Alternatively,
flutter: initialization based on inherited widgets can be placed in the didChangeDependencies method, which
flutter: is called after initState and whenever the dependencies change thereafter.

路由小部件(根)

class Root extends StatefulWidget {
  @override
  State createState() => RootState();
}

class RootState extends State<Root> {
  static Map<String, Widget> routeTable = {Constants.HOME: Home()};
  bool loaded = false;
  bool authenticated = false;

  @override
  void initState() {
    super.initState();
    if (!loaded) {
      AuthContainerState data = AuthContainer.of(context);
      data.isAuthenticated().then((authenticated) {
        setState(() {
          authenticated = authenticated;
          loaded = true;
        });
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        initialRoute: '/',
        onGenerateRoute: (routeSettings) {
          WidgetBuilder screen;
          if (loaded) {
            if (authenticated) {
              screen = (context) => SafeArea(
                  child: Material(
                      type: MaterialType.transparency,
                      child: routeTable[routeSettings.name]));
            } else {
              screen = (conext) => SafeArea(
                  child: Material(
                      type: MaterialType.transparency, child: Register()));
            }
          } else {
            screen = (context) => new Container();
          }
          return new MaterialPageRoute(
            builder: screen,
            settings: routeSettings,
          );
        });
  }
}

继承的小部件方法，它判断身份验证并self 更新，从而触发路由小部件的重新渲染

Future<bool> isAuthenticated() async {
    if (user == null) {
      final storage = new FlutterSecureStorage();
      List results = await Future.wait([
        storage.read(key: 'idToken'),
        storage.read(key: 'accessToken'), 
        storage.read(key: 'refreshToken'),
        storage.read(key: 'firstName'),
        storage.read(key: 'lastName'),
        storage.read(key: 'email')
      ]);
      if (results != null && results[0] != null && results[1] != null && results[2] != null) {
        //triggers a set state on this widget
        updateUserInfo(
          identityToken: results[0], 
          accessToken: results[1], 
          refreshToken: results[2],
          firstName: results[3],
          lastName: results[4],
          email: results[5]
        );
      }
    }
    return user != null && (JWT.isActive(user.identityToken) || JWT.isActive(user.refreshToken));
  }

主干道

void main() => runApp(
  EnvironmentContainer(
    baseUrl: DEV_API_BASE_URL,
    child: AuthContainer(
      child: Root()
    )
  )
);

在应用程序加载时判断本地存储并更新保存此信息的继承小部件的正确方法是什么？