possible to delete more than one element during the countdown timer

[kalimaty]

I discovered a serious problem
It is that it is possible to delete more than one element during the countdown timer
This causes the flash bar to appear repeatedly on the screen
What is the solution to fix this defect?

[MarekLipskij]

I can confirm that. When the dismiss time is still in effect user can keep dismissing the flush bar and it keeps reappearing. So it looks like there are multiple flush bars stacked.

[Cmk427]

I think this may help anyone needed.

class FlushbarManager {
  static Flushbar? _currentFlushbar;
  static Flushbar? get flushbar => _currentFlushbar;

  static Future<void> showFlushbar(
    BuildContext context, {
    required Widget description,
    required Color backgroundColor,
    required Color borderColor,
    Color? titleColor
    Color? messageColor
    String? title,
  }) async {
    if (_currentFlushbar != null) {
      _currentFlushbar?.dismiss();
    }
    _currentFlushbar = Flushbar(
      flushbarPosition: FlushbarPosition.BOTTOM,
      backgroundColor: backgroundColor,
      borderRadius: const BorderRadius.all(Radius.circular(4)),
      margin: const EdgeInsets.all(16),
      title: title,
      titleColor: titleColor,
      messageText: description,
      messageColor: messageColor,
      duration: const Duration(seconds: 3),
      borderColor: borderColor,
      animationDuration: const Duration(milliseconds: 500),
    );
    await _currentFlushbar?.show(context).then((_) {
      _currentFlushbar = null;
    });
  }
}