Even after fetching float value from Firebase, Toast displays value null

Question

DatabaseReference dr1 = FirebaseDatabase.getInstance().getReference().child("users");
    dr1.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
            for(DataSnapshot ds : dataSnapshot.getChildren())
            {
                if(userID.equals(ds.child("userIDOriginal").getValue().toString()))
                {
                    monthlyBudget = Float.parseFloat(ds.child("userMonthlyBudget").getValue().toString());
                }
            }
        }
        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {
        }
    });
    Toast.makeText(getActivity(),""+monthlyBudget,Toast.LENGTH_LONG).show();

This is code fetching float value from firebase database,Toast shows correct value when placed inside, but shows null value when placed outside the ValueEventListener.Can anyone suggest solution? Thanks in advance.

Your code is working exactly as I would expect, since Firebase listeners are asynchronous. — Doug Stevenson, Apr 03 '20 at 16:07
Yes even I am expecting the output but unfortunately it's still displaying null value — Vicky Gupta, Apr 03 '20 at 16:15
Please check the duplicate to see why do you have this behavior and how can you solve this using a custom callback. — Alex Mamo, Apr 03 '20 at 16:16

Even after fetching float value from Firebase, Toast displays value null

0 Answers0