code: public static void sortViewsByLocationOnScreen(List<? extends View> views, boolean yAxisFirst) {
  		Collections.sort(views, new ViewLocationComparator(yAxisFirst));
  	}
docs: Orders Views by their location on-screen.
  
  @param views The views to sort
  @param yAxisFirst Whether the y-axis should be compared before the x-axis
  @see ViewLocationComparator