@Override
        @NonNull
        @SuppressWarnings("rawtypes")
        public Fragment createFragment(final int position) {
            final long pageId = getItemId(position);
            TabbedViewPagerFragment fragment = fragmentMap.get(pageId);
            if (fragment != null) {
                return fragment;
            }
            fragment = createNewFragment(pageId);
            fragmentMap.put(pageId, fragment);
            return fragment;
        }
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