SpannableStringBuilder to create String with multiple fonts/text sizes etc Example?

by 
First Part Not Bold   BOLD  rest not bold

You can do this either as @Rajesh suggested or by this.

String normalBefore= "First Part Not Bold ";
String normalBOLD=  "BOLD ";
String normalAfter= "rest not bold";
String finalString= normalBefore+normalBOLD+normalAfter;
Spannable sb = new SpannableString( finalString );
sb.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), finalString.indexOf(normalBOLD)+ normalBOLD.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); //bold
sb.setSpan(new AbsoluteSizeSpan(intSize), finalString.indexOf(normalBOLD)+ normalBOLD.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);//resize size

to show this in TextView

textview.setText(sb,  TextView.BufferType.SPANNABLE);

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