removeListener method
Stop listening for new concrete PictureInfo objects.
Implementation
void removeListener(PictureListener listener) {
_listeners.removeWhere(
(_PictureListenerPair pair) => pair.listener == listener,
);
}
Stop listening for new concrete PictureInfo objects.
void removeListener(PictureListener listener) {
_listeners.removeWhere(
(_PictureListenerPair pair) => pair.listener == listener,
);
}