Suppose in out text/paragraph of textview, some words are clickable or hyperlinked. In case you have a task to open those hyperlinked text in a webview of any browser you have to use SpannableStringBuilder. Below code with details will help you to open those specific hyperlinked words which are appearing on textview.

// storing data into a string object
String text=pagesPostDetail.getPOST().getPost_detail();
// reading html text if any        
CharSequence sequence = Html.fromHtml(text);
// creating object of SpannableStringBuilder class
SpannableStringBuilder strBuilder = new SpannableStringBuilder(sequence);
UnderlineSpan[] underlines = strBuilder.getSpans(0, 10, UnderlineSpan.class);
// now searching underlines text from start to end 
for(UnderlineSpan span : underlines) {
    int start = strBuilder.getSpanStart(span);
    int end = strBuilder.getSpanEnd(span);
    int flags = strBuilder.getSpanFlags(span);
    ClickableSpan myActivityLauncher = new ClickableSpan() {
          public void onClick(View view) {
	       // ACTION_VIEW to open intent webview chooser
               Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(text));
               context.startActivity(intent);
               }
          };
    strBuilder.setSpan(myActivityLauncher, start, end, flags);
    }
// finally attaching to the textview
post_detail_Textview.setText(strBuilder);
post_detail_Textview.setLinksClickable(true);
post_detail_Textview.setMovementMethod(LinkMovementMethod.getInstance());