if (details == null || details.getShownIndex() != index) { details = DetailsFragment.newInstance(index);
if (details == null || details.getShownIndex() != index) { details = DetailsFragment.newInstance(index);
if (details == null || details.getShownIndex() != index) { details = DetailsFragment.newInstance(index);
if (details == null || details.getShownIndex() != index) { details = DetailsFragment.newInstance(index);