Updating the data on Firebase Android

Question

I want to update the date on Firebase on a specific node.

DB Structure:

I am trying as

private void updateData() {
database = FirebaseDatabase.getInstance();
myref = database.getReference();
myref.child("myDb").child("awais@gmailcom").addListenerForSingleValueEvent(new ValueEventListener() {
    @Override
    public void onDataChange(DataSnapshot dataSnapshot) {

        dataSnapshot.getRef().child("leftSpace").setValue(newValue);
        dialog.dismiss();
        
    }
    @Override
    public void onCancelled(DatabaseError databaseError) {
        Log.d("User", databaseError.getMessage());
    }
});
}

I want to update the leftSpace key with the value of newValue, newValue is the type of string here. But it is not updating the value in Firebase.

If I give here

dataSnapshot.getRef().child("leftSpace").setValue(765);

it updates well. But I want to update in the format of string on the Firebase.

I saved the data on Firebase of all string types. (My pattern class contains all of the type strings)

Why it is not updating the newvalue of type string here?

Edit 1 Suggested by @Rjz Satvara

You method is adding a new node under myDB as

It is not updating the already one.

Answer 1

In Firebase To update specific value you can use it...

ref.child("myDb").child("awais@gmailcom").child("leftSpace").setValue("YourDateHere");

or you can move into child using "/" as follow :

ref.child("myDb/awais@gmailcom/leftSpace").setValue("YourDateHere");