Show More Android Java

private void onViewMore(final TextView comment, final ListCommentBean itemBean, final int position, final TimelineDetailAdapterListener listener) {

String expandText = itemBean.isViewMore ? itemView.getResources().getString(R.string.see_Less) : itemView.getResources().getString(R.string.see_more);
            String text;
            int lineEndIndex;

            if (itemBean.isViewMore) {
                lineEndIndex = comment.getLayout().getLineEnd(comment.getLayout().getLineCount() - 1);
                text = comment.getText().subSequence(0, lineEndIndex) + " " + expandText;
            } else {
                lineEndIndex = comment.getLayout().getLineEnd(Constants.MAX_LINE_COMMENT - 1);
                text = comment.getText().subSequence(0, lineEndIndex - expandText.length() + 1) + " " + expandText;
            }
            comment.setText(text);

            comment.setHighlightColor(Color.TRANSPARENT);
            comment.setMovementMethod(LinkMovementMethod.getInstance());

            comment.setText(addClickablePartTextViewResizable(Html.fromHtml(comment.getText().toString()), comment, expandText, itemBean, position, listener), TextView.BufferType.SPANNABLE);
        }

        private SpannableStringBuilder addClickablePartTextViewResizable(Spanned strSpanned, final TextView comment, String expandText, final ListCommentBean itemBean, final int position, final TimelineDetailAdapterListener listener) {
            String str = strSpanned.toString();

            SpannableStringBuilder ssb = new SpannableStringBuilder(strSpanned);
            ssb.setSpan(new ClickableSpan() {
                @Override
                public void updateDrawState(TextPaint ds) {
                    ds.setColor(ds.linkColor);    // you can use custom color
                    ds.setUnderlineText(false);    // this remove the underline
                }

                @Override
                public void onClick(View widget) {
                    if (itemBean.isViewMore) {
                        itemBean.isViewMore = false;
                    } else {
                        itemBean.isViewMore = true;
                    }
                    listener.onViewMore(itemBean, position);
                }
            }, str.indexOf(expandText), str.indexOf(expandText) + expandText.length(), 0);

            return ssb;
        }
    }