How to Convert Firebase data to Java Object…?

Question

Using Firebase Library to send data to the server in the form Message(String, String) added to the HashMap

Exampl

Answer 1

Use this code if you want to convert firebase object to json using Gson Library :

databaseReference.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            Object object = dataSnapshot.getValue(Object.class);
            String json = new Gson().toJson(object);
            Example example= new Gson().fromJson(json, Example.class);
            Log.e("json","json: " + example.getGlossary());
        }

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

        }
    });

This will convert complete Database Structure to String json and then json to class object using Gson Lib