How to use SpannableString

 // make the text twice as large

     styledString.setSpan(newRelativeSizeSpan(2f),0,5,0);

      

     // make text bold

     styledString.setSpan(newStyleSpan(Typeface.BOLD),7,11,0);

      

     // underline text

     styledString.setSpan(newUnderlineSpan(),13,23,0);

      

     // make text italic

     styledString.setSpan(newStyleSpan(Typeface.ITALIC),25,31,0);

      

     styledString.setSpan(newStrikethroughSpan(),33,46,0);

      

     // change text color

     styledString.setSpan(newForegroundColorSpan(Color.GREEN),48,55,0);

      

     // highlight text

     styledString.setSpan(newBackgroundColorSpan(Color.CYAN),57,68,0);

      

     // superscript

     styledString.setSpan(newSuperscriptSpan(),72,83,0);

     // make the superscript text smaller

     styledString.setSpan(newRelativeSizeSpan(0.5f),72,83,0);

      

     // subscript

     styledString.setSpan(newSubscriptSpan(),87,96,0);

     // make the subscript text smaller

     styledString.setSpan(newRelativeSizeSpan(0.5f),87,96,0);

      

     // url

     styledString.setSpan(newURLSpan("http://www.google.com"),98,101,0);

      

     // clickable text

     ClickableSpan clickableSpan = newClickableSpan() {

    

   @Override

   publicvoidonClick(View widget) {

    // We display a Toast. You could do anything you want here.

    Toast.makeText(SpanExample.this,"Clicked", Toast.LENGTH_SHORT).show();

     

   }

  };