CODEWITHSUNDEEP
javaandroidfirebasefirebase-realtime-database
Игорь Климентов
Игорь Климентов

Reputation: 5

How to get user data Firebase

I'm new to Android development. I need to put and get information through Firebase. I managed to make the assignment of information, but I can not make getting information from the database. 

test_send.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String user_id = FirebaseAuth.getInstance().getCurrentUser().getUid();
            DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users").child(user_id);

            String testData = edit_data_FB.getText().toString();

            Map newPost = new HashMap();
            newPost.put("testData",testData);

            current_user_db.setValue(newPost);
        }
    });

    test_get.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String user_id = FirebaseAuth.getInstance().getCurrentUser().getUid();
            DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users").child(user_id).child("testData").val;

            //Map newPost = new HashMap();
            //String data = newPost.get();

            //text_get.setText();
        }
    });

Mission database has the following form Firebase Database I need to get the testData value

Upvotes: 0

Views: 45

Answers (1)

Peter Haddad
Peter Haddad

Reputation: 80914

To retrieve testData try the following:

String user_id = FirebaseAuth.getInstance().getCurrentUser().getUid();
DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users").child(user_id);
current_user_db.addListenerForSingleValueEvent(new ValueEventListener() {
 @Override
 public void onDataChange(DataSnapshot dataSnapshot) {
    String testData = dataSnapshot.child("testData").getValue(String.class);
 }

 @Override
 public void onCancelled(DatabaseError databaseError) {

    }
});

Attach a listener to your reference and then you will be able to retrieve testData

Upvotes: 2

Related Questions