/** Initialise ViewPager */ private void intializeViewPager(final RouteNode N) { Label L = N.get_label(); if (L != null) { final int line_label_int = L.get_line_label_int(); final int selection_line = line_label_int - START_LINE_INDEX; final int selection_sharp = L.is_sharp() ? L.get_letterIntrinsic() : 0; intializeVP(selection_line, selection_sharp); } else { intializeVP(0, 0); } }