collectLobbyEvents method
Implementation
void collectLobbyEvents(RtcViewmodel? viewModel, BuildContext context) {
  if (isEventAdded) return;
  isEventAdded = true;
  viewModel?.privateChatEvents.listen((event) {
    if (event is UpdateView) {
      if (mounted) {
        setState(() {});
      }
    }
  });
}