removeQueuedCustomToasts method
void
removeQueuedCustomToasts()
Toaster maintains a queue for every toast if we called showToast for 3 times we all to queue and show them one after another
call removeCustomToast to hide the toast immediately
Implementation
void removeQueuedCustomToasts() {
_timer?.cancel();
_timer = null;
_overlayQueue.clear();
if (_entry != null) _entry!.remove();
_entry = null;
}