onInit method
Called immediately after the widget is allocated in memory. You might use this to initialize something for the controller.
Implementation
@override
void onInit() {
  super.onInit();
  medialistWidgetBundle = GalleryWidget(service).mediaList(
    Get.context!,
    onMediaUpdated: (onMediaUpdated) {
      media.value = onMediaUpdated;
      media.refresh();
      log("media updated: ${media.length}");
    },
    big: true,
    editable: true,
  );
}