nodes - Get multiple keys from firebase realtime database

Question

I'm trying to retrieve data from the firebase real-time database. In the parent node, I have five child nodes. I want to get all the node names from the parent node and set the value to a textView. I've tried the getkey() method but it returns only one key. How to retrieve multiple child nodes from firebase?

ref.orderByKey().addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot snapshot) {
                if (snapshot.exists() && !snapshot.equals(null))
                {
                    for (DataSnapshot ds: snapshot.getChildren()){
                        String key = ds.getRef().getKey();

                            holder.regionTV.setText(key);

                            holder.myLayoutLayout.setVisibility(View.VISIBLE);
                            holder.region_Count = (int) ds.getChildrenCount();
                            holder.regionCountTV.setText(Integer.toString(holder.region_Count));

                    }


                }
                else
                {
                    holder.regionCountTV.setText("0");
                    holder.myLayoutLayout.setVisibility(View.GONE);
                }





            }

            @Override
            public void onCancelled(@NonNull DatabaseError error) {

            }
        });

question from:https://stackoverflow.com/questions/66049511/get-multiple-keys-from-firebase-realtime-database

Answer 1

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