When we don't need the whole sequence but only a few elements at the beginning or end, we can use take() or takeLast().
What if we only want the first three elements of an Observable sequence, emit them, and then let the Observable complete? The take() function gets an N integer as a parameter, emits only the N first elements from the original sequence, and then it completes:
private void loadList(List<AppInfo> apps) {
mRecyclerView.setVisibility(View.VISIBLE);
Observable.from(apps)
.take(3)
.subscribe(new Observer<AppInfo>() {
@Override
public void onCompleted() {
mSwipeRefreshLayout.setRefreshing(false);
}
@Override
public void onError(Throwable e) {
Toast.makeText(getActivity(), "Something went south!", Toast.LENGTH_SHORT).show();
mSwipeRefreshLayout.setRefreshing(false);
...