Spannable style = new SpannableStringBuilder(commentsHtml);

try {
style.setSpan(new ForegroundColorSpan(Color.BLUE),startIndex,endIndex,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

}catch (Exception e){
e.printStackTrace();
}finally {
holder.comentsConTV.setText(style);
}

textview 改变部分字体颜色