onDismiss method

Implementation

onDismiss()
{
  if (!widget.model.dismissable) return;
  ModalManagerView? manager = context.findAncestorWidgetOfExactType<ModalManagerView>();
  if (manager != null)
  {
    manager.model.unpark(widget);
    manager.model.modals.remove(widget);
    manager.model.refresh();
  }
}