clear method

dynamic clear()

Implementation

clear() {
  if (_state == ToastedState.none) {
    return;
  }
  _timer!.cancel();
  _timer = null;
  _state = ToastedState.none;
  _onEvent();
  // Clear the queue last so that if there is a current toast displayed
  // when the queue is cleared, it will be passed along in the onEvent handler.
  _queue.clear();
}