initStreamControllers method
void
initStreamControllers()
Implementation
void initStreamControllers() {
uiPickerStream = StreamController.broadcast();
_uiAppbarIconsStream = StreamController.broadcast();
uiPickerStream.stream.listen((_) => rebuildController.add(null));
_uiAppbarIconsStream.stream.listen((_) => rebuildController.add(null));
}