code: @Nullable
      protected View getCommentLabel() {
          final String commentPrompt = dialogConfiguration.commentPrompt();
          if (commentPrompt != null) {
              final TextView labelView = new TextView(this);
              labelView.setText(commentPrompt);
              return labelView;
          }
          return null;
      }
docs: creates a comment label view with resCommentPrompt as text
  
  @return the label or null if there is no resource