@Override
public void spotsLoaded(boolean fromCache, List<SpotData> _spots) {
// this is called when the spots are loaded.
// it is called twice,first with values from the local cache and later with new updated values
// from internet
if (fromCache && _spots == null) {
// since this is from cache, show a loading screen. Later this function is called again but
// with non-cached values
showLoading();
return;
}
if (!fromCache && _spots == null) {
// ok, there are really no spots
showNoData();
return;
}
if (SpotStorage.sameSpots(_spots, mSpots)) {
return; // no change
}
mSpots = _spots;
if (mTabPageIndicator != null && mFragmentAdapter != null) {
mFragmentAdapter.setSpots(_spots);
mTabPageIndicator.notifyDataSetChanged();
}
showSpots();
}
@Override
public void setViewPager(ViewPager view) {
if (mViewPager == view) {
return;
}
if (mViewPager != null) {
mViewPager.setOnPageChangeListener(null);
}
final PagerAdapter adapter = view.getAdapter();
if (adapter == null) {
throw new IllegalStateException("ViewPager does not have adapter instance.");
}
mViewPager = view;
view.setOnPageChangeListener(this);
notifyDataSetChanged();
}