How can I reuse a subscriber between two Observables (RxJava)

Question

In order not to repeat myself, I want to reuse a variable Subscriberbetween two observables. How do you do this? My current code below does not work, because after the subscriber is used once, he does not sign and no longer works again. If I newa Subscriberinstead of reusing a variable, my subscription works. I do not want to write the same code twice if possible.

public class HomePresenter extends BasePresenter<HomeView> {
    ArticleRepo articleRepo;

    @Inject
    public HomePresenter(ArticleRepo articleRepo) {
        this.articleRepo = articleRepo;
    }

    @Override
    public void onCreate(@Nullable PresenterBundle bundle) {
        super.onCreate(bundle);
    }


    public void onEvent(ArticleCategoryClickedEvent event) {
        Timber.v("Adapter position clicked at position: '%d'", event.getAdapterPosition());
        view.launchArticleActivity(event.getArticleCategory());
    }

    public void onEvent(SeabeeOnlineExternalLinkClickedEvent event) {

    view.launchExternalLink(event.getSeabeeOnlineExternalLink());
}

public void loadArticleImages() {
    articleRepo.getArticleBuckets()
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(subscriber);
}

public void refreshData() {
    articleRepo.refreshAndSaveArticles()
            .flatMap(new Func1<List<ArticleEntity>, Observable<List<ImageArticleCategoryEntity>>>() {
                @Override
                public Observable<List<ImageArticleCategoryEntity>> call(List<ArticleEntity> articleEntityList) {
                    return articleRepo.getArticleBuckets();
                }
            }).subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(subscriber);

}

final Subscriber<List<ImageArticleCategoryEntity>> subscriber = new Subscriber<List<ImageArticleCategoryEntity>>() {
    @Override
    public void onCompleted() {
        Timber.v("Loading article images complete!");
        view.hideLoadingAnimation();
    }

    @Override
    public void onError(Throwable e) {
        Timber.e("Error loading article images", e);
        Log.e("tag", "Error loading article images", e);
    }

    @Override
    public void onNext(List<ImageArticleCategoryEntity> integerImageArticleCategoryEntityHashMap) {
        view.loadArticleImages(integerImageArticleCategoryEntityHashMap);
    }
};

}

Answer 1

A Subscribershould not be reused. This will not work, because it is Subscription, and after its cancellation it is done.

Observer , .

Answer 2

, .

private static class MySubscriber extends Subscriber<List<ImageArticleCategoryEntity>> {...}

Subscriber<> subscriber1 = new MySubscriber();
Subscriber<> subscriber2 = new MySubscriber();

.