code: public T text(CharSequence text, boolean goneIfEmpty) {
  
          if (goneIfEmpty && (text == null || text.length() == 0)) {
              return gone();
          } else {
              return text(text);
          }
      }
docs: Set the text of a TextView. Hide the view (gone) if text is empty.
  
  @param text        the text
  @param goneIfEmpty hide if text is null or length is 0
  @return self