Android How to Animate Translate Inflate Layout set Start Magin From top

Question

animation = new TranslateAnimation(
          Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
          Animation.ABSOLUTE, -300, Animation.ABSOLUTE, 0

I use this code. but i want magin top between start inflate layout and top screen.

how to code it.