title: how to design for all device resolution
body: <p>hi all
  i have to use linear layout with all resolution type device such as 480x800,480x854,320x480.
  i use x,y position for placing element in linear layout while designing for 320x480. i have to redesign  for other resolution device therefore it takes more time. please give common method for all the resolution with linear layout. thanks in advance. </p>