ProgressBar while loading Firebase Realtime Database

Question

I'm using Firebase Realtime Database to display content from database to RecyclerView. My database is quite big and take some time to load everything. How can i create ProgressBar that disappears after content of database is loaded?

Here is my code, that i use to display Firebase content into RecyclerView:

public class news_kz extends Fragment {

    View view;
    RecyclerView newsRecycler;
    NewsAdapter newsAdapter;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.fragment_news_kz, container, false);

        setUpFirebase();

        return view;
    }

    private void setUpFirebase() {
        newsRecycler = view.findViewById(R.id.newsRecyclerKz);
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(view.getContext());
        linearLayoutManager.setReverseLayout(true);
        linearLayoutManager.setStackFromEnd(true);
        newsRecycler.setLayoutManager(linearLayoutManager);

        FirebaseRecyclerOptions<NewsItem> options =
                new FirebaseRecyclerOptions.Builder<NewsItem>().setQuery(FirebaseDatabase.getInstance().getReference().child("newsKz"), NewsItem.class).build();

        newsAdapter = new NewsAdapter(options, view.getContext());
        newsRecycler.setAdapter(newsAdapter);
    }

    @Override
    public void onStart(){
        super.onStart();
        newsAdapter.startListening();
    }

    @Override
    public void onStop(){
        super.onStop();
        newsAdapter.stopListening();
    }
}

Does this answer your question? [How to show loading message in recyclerview](https://stackoverflow.com/a/46839428/3068190) — samthecodingman, Jun 28 '21 at 07:03
To be able to hide the ProgressBar, please check the duplicate answer. — Alex Mamo, Jun 28 '21 at 16:52

score 0 · Answer 1 · answered Jun 28 '21 at 09:22

For this, you have to show the progress on onCreateView your fragment and then hide the progress on completion of firebase success and failure listener.

And I have one recommendation that as you have a big database you have to collected limited data.

e.g first 50 record

for more info at Here

ProgressBar while loading Firebase Realtime Database

1 Answers1