public static void bookServiceReset() {
Prefs.putInt(BOOK_SERVICE_STATUS_KEY, BOOK_SERVICE_STATUS_UNKNOWN);
}
@SuppressWarnings("ResourceType")
public static @BookService.BookServiceStatus int getBookServiceStatus() {
return Prefs.getInt(BOOK_SERVICE_STATUS_KEY, BookService.BOOK_SERVICE_STATUS_UNKNOWN);
}