private int pageIdToPosition(final long page) {
        final int i = pageIdToPositionWithErrorcode(page);
        return i == -1 ? 0 : i;
    }
Set if the content is refreshable. Defaults to true if the Activity contains a {@link SwipeRefreshLayout}.
main/src/main/java/cgeo/geocaching/activity/TabbedViewPagerActivity.java