title: Apply math expressions to xml padding in android studio
body: <p>the bottom part of my scroll view was being cut off by the bottom navigation so I applied paddingBottom=?actionBarSize to the constraint layout nested inside to prevent this.</p>
  <p>however, I want to add more padding to the bottom something like paddingBottom=?actionBarSize * 1.5. Is there a way to achieve this?</p>
  <p>update: I achieved the desired effect by adding padding to the bottom-most view. however i would like to apply to the containing layout.</p>