layout margin for text view programmatically

Question

If I use xml file I have a option called layout_margin (for example layout_margin ="1dp" for text view ) but I want to set programmatically and I dont know how to do it.

Answer 1

   LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)textview.getLayoutParams();
     params.setMargins(20, 0, 0, 0); 
     textview.setLayoutParams(params);