code: private void handleNoBreadcrumbsIntent(@NonNull final Bundle extras) {
          if (extras.containsKey(EXTRA_NO_BREAD_CRUMBS)) {
              hideBreadCrumb(extras.getBoolean(EXTRA_NO_BREAD_CRUMBS));
          }
      }
docs: Handles the intent extra, which specifies whether bread crumbs should be shown, not.
  
  @param extras
  The extras of the intent, which has been used to start the activity, as an instance
  of the class {@link Bundle}. The bundle may not be null