A dialog queue for you to manage your dialogs to display on flutter platform

class App extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      navigatorObservers: [DialogQueueRouteObserver()],
    );
  }
}

showModalBottomSheet<T>(
    context: context,
    backgroundColor: Colors.white,
    isScrollControlled: true,
    isDismissible: false,
    builder: (BuildContext context) {
      return SafeArea(child: Text('Hello DialogQueue'));
    },
  );

DialogQueue.instance.addDialog(DialogQueueElement(() {
    return showModalBottomSheet(
        context: context,
        backgroundColor: Colors.white,
        isScrollControlled: true,
        isDismissible: false,
        builder: (BuildContext context) {
            return SafeArea(child: Text('Hello DialogQueue'));
        }
    );
}, tag: tag, priority: priority, uniqueKey: uniqueKey));

DialogQueue.instance.resume();
DialogQueue.instance.pause();

DialogQueue.instance.pushNameThenResume(navigatorState, PageB);