title: How to change vertical spacing in Android NumberPicker
body: <p>The Android NumberPicker widget has a lot of space between the current item and the blue lines above and below it. Is there any way to change this spacing to be more compact, so the whole widget does not take so much vertical space?</p>
  
  <p>(I do <em>not</em> want to scale the entire widget, just reduce the spacing).</p>