I got a code which works but it doesn’t use my routing system :

          Navigator.push(
            context,
            MaterialPageRoute(
              builder: (context) => ChatScreen(
                chatParams: ChatParams(currentUser.uid, userFriend!),
              ),
            ),
          );

I load perfectly my page. Problems : of course, I want to use my route system.
So i do this :

          Navigator.pushNamed(
            context,
            RouteConsts.chatScreen,
            arguments: ChatParams(currentUser.uid, userFriend!),
          );

Name of route :

class RouteConsts {
  ...
  static const String chatScreen = '/ChatScreen';
  ...
}

And the route concerned :

  case RouteConsts.chatScreen:
    print("on y est");
    if (settings.arguments is ChatParams) {
      ChatParams chatParams = settings.arguments as ChatParams;
      print(chatParams);
      return MaterialPageRoute(
        builder: (context) => ChatScreen(chatParams: chatParams),
      );
    } else {
      print("Unexpected arguments type for ChatScreen: ${settings.arguments.runtimeType}");
      return MaterialPageRoute(builder: (_) => ItemsListScreen());
      // Vous pouvez également retourner null ou une autre route de secours si nécessaire
    }
    break;

The problem seems to come from the break, which is considered like a “deadcode” by IDE.
This is because i use a return of MaterialPageRoute, so my switch doesn’t like it.
Any idea to resolve this ?

Thanks for your time.