removeListener method

void removeListener(
  1. PictureListener listener
)

Stop listening for new concrete PictureInfo objects.

Implementation

void removeListener(PictureListener listener) {
  _listeners.removeWhere(
    (_PictureListenerPair pair) => pair.listener == listener,
  );
  if (_listeners.isEmpty && !cached) {
    _handle?.dispose();
    _current = null;
    _handle = null;
  }
}