1textView.setTypeface(null, Typeface.BOLD_ITALIC);
2textView.setTypeface(null, Typeface.BOLD);
3textView.setTypeface(null, Typeface.ITALIC);
4textView.setTypeface(null, Typeface.NORMAL);
5
6//To keep the previous typeface
7
8textView.setTypeface(textView.getTypeface(), Typeface.BOLD_ITALIC)