Firebase Android Authenticated User

Question

I am pretty new to Firebase and have a question.

I'm looking to link my new authenticated user to a database that I have working.

I have class named addChild which contains an editText for add children's name, and need this to be linked to the authenticated user on a database. So when that user logs in, they can see their children's names that they have inputted.

Does anybody know how I could do this? I have set up the real-time database connection Im just not sure where to go from here.

Thanks This is how I created user.

 auth.createUserWithEmailAndPassword(email, password)
     .addOnCompleteListener(CreateUserAccount.this, new OnCompleteListener<AuthResult>() {
        @Override
        public void onComplete(@NonNull Task<AuthResult> task) {
            Toast.makeText(CreateUserAccount.this, "User Account Created" + task.isSuccessful(), Toast.LENGTH_SHORT).show();

            // If sign in fails, display a message to the user. If sign in succeeds
            // the auth state listener will be notified and logic to handle the
            // signed in user can be handled in the listener.
            if (!task.isSuccessful()) {
                Toast.makeText(CreateUserAccount.this, "Authentication failed." + task.getException(),
                        Toast.LENGTH_SHORT).show();
            } else {
                startActivity(new Intent(CreateUserAccount.this, LandingPage.class));
                finish();
            }
        }
    });

Answer 1

After you authenticate a user using Firebase Authentication, then also you can send his uid to the database:

FirebaseUser user=FirebaseAuth.getInstance().getCurrentUser();
String useruid=user.getUid();

then in the database you would have this:

Users
  useruid
     name: userx
     email: userx@gmail.com

---

String name = editText.getText().toString();
String email = editTxt.getText().toString();

DatabaseReference ref=FirebaseDatabase.getInstance().getReference().child("Users").child(useruid);
ref.child("name").setValue(name);
ref.child("email").setValue(email);

Edit:

  } else {
 FirebaseUser user= task.getResult().getUser();
 DatabaseReference ref=FirebaseDatabase.getInstance().getReference().child("Users").child(user.getUid());
ref.child("name").setValue(name);
ref.child("email").setValue(email);
        startActivity(new Intent(CreateUserAccount.this, LandingPage.class));
         finish();
        }

to add the children in the other activity:

1. First retrieve the names from an edittext

then add them like this:

Children
   useruid <--- the id that is in the usernode above
       childname: john
   useruid
       childname: james bond