basic_example_network

public class MovieStaticListFragment extends Fragment {

    MovieViewModel viewModel;
    CompositeSubscription subscriptions;
    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        if (savedInstanceState != null) {
            viewModel = savedInstanceState.getParcelable(VIEW_MODEL);
        }
    }

    @Override
    public void onViewCreated() {
        if (viewModel != null) {
            udpateUi(viewModel);
        } else {
            Subscription subscription = api.getMovieList().subscribe(movieList -> {
                viewModel = MovieMapper.map(movieList);
                updateUi(viewModel);
            }, throwable -> {
                viewModel = null;
            });
            subscriptions.add(subscription);
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        outState.putParcelable(VIEW_MODEL, viewModel);
    }

    @Override
    public void onDestroy() {
        if (!subscriptions.isUnsubscribed()) {
            subscriptions.clear();
        }
    }
}