Working with Firebase in Android: Real-time Database and Authentication

Firebase offers real-time databases and authentication services for Android apps. Here’s how to get started:

Firebase Authentication Example:

    FirebaseAuth mAuth = FirebaseAuth.getInstance();
    mAuth.signInWithEmailAndPassword(email, password)
        .addOnCompleteListener(this, task -> {
            if (task.isSuccessful()) {
                // Sign in success
            } else {
                // Sign in failure
            }
        });
  

Firebase Realtime Database Example:

    DatabaseReference database = FirebaseDatabase.getInstance().getReference();
    User user = new User("John Doe", "john@example.com");
    database.child("users").push().setValue(user);