如何使用同一登录页面处理两个不同用户的登录

Question

我正在创建一个有两个用户（医生和患者）的android应用。我为两个用户拥有不同的注册页面，但具有相同的登录页面。我试图通过使用Firebase Firestore来设置两个用户的登录名不同。我在Firestore数据库中设置了两个用户的电子邮件地址。在登录活动中，我获取了电子邮件地址，并均衡了从数据库中获取的登录页面和电子邮件的电子邮件，并将其设置为其他条件。我没有遇到什么问题。

还想知道我的逻辑是否正确？

这是我的登录活动。

 public class MainActivity extends AppCompatActivity 
        EditText editText_email, editText_password;
        Button signInButton, doctorSignUpButton, patientSignUpButton;
        FirebaseFirestore firestore;
        FirebaseAuth auth;
        String doctorEmail, patientEmail;

        @Override
        protected void onCreate(Bundle savedInstanceState) 
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            firestore = FirebaseFirestore.getInstance();
            FirebaseApp.initializeApp(this);
            auth = FirebaseAuth.getInstance();

            editText_email = findViewById(R.id.editText_email);
            editText_password = findViewById(R.id.editText_password);
            signInButton = findViewById(R.id.signIn_button);
            doctorSignUpButton = findViewById(R.id.doctorSignUpButton);
            patientSignUpButton = findViewById(R.id.patientSignUpButton);



            doctorSignUpButton.setOnClickListener(new View.OnClickListener() 
                @Override
                public void onClick(View v) 
                    Intent intent = new Intent(MainActivity.this, DoctorSignUp.class);
                    startActivity(intent);
                
            );

            patientSignUpButton.setOnClickListener(new View.OnClickListener() 
                @Override
                public void onClick(View v) 
                    Intent intent = new Intent(MainActivity.this, PatientSignUp.class);
                    startActivity(intent);

                
            );



            firestore.collection("Doctor Database").get()
                    .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() 
                        @Override
                        public void onComplete(@NonNull Task<QuerySnapshot> task) 
                            for (DocumentSnapshot documentSnapshot : task.getResult())
                                doctorEmail = documentSnapshot.getString("Email");

                            

                        
                    );

            firestore.collection("Patient Database").get()
                    .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() 
                        @Override
                        public void onComplete(@NonNull Task<QuerySnapshot> task) 
                            for (DocumentSnapshot documentSnapshot : task.getResult())
                                patientEmail = documentSnapshot.getString("Email");

                            

                        
                    );

            signInButton.setOnClickListener(new View.OnClickListener() 
                @Override
                public void onClick(View v) 
                    String email = editText_email.getText().toString();
                    String password = editText_password.getText().toString();

                    if (email == doctorEmail)
                        auth.signInWithEmailAndPassword(email, password)
                                .addOnCompleteListener(new OnCompleteListener<AuthResult>() 
                                    @Override
                                    public void onComplete(@NonNull Task<AuthResult> task) 
                                        if (task.isSuccessful() && auth.getCurrentUser() != null)
                                            Toast.makeText(MainActivity.this, "Logged In Successfully!", Toast.LENGTH_LONG).show();
                                            Intent intent = new Intent(MainActivity.this, DoctorSignUp.class);
                                            startActivity(intent);

                                        

                                    
                                ).addOnFailureListener(new OnFailureListener() 
                            @Override
                            public void onFailure(@NonNull Exception e) 
                                Toast.makeText(MainActivity.this, "Error Logging in with Doctor Account!", Toast.LENGTH_LONG).show();


                            
                        );

                    

                    else if (email == patientEmail)
                        auth.signInWithEmailAndPassword(email, password)
                                .addOnCompleteListener(new OnCompleteListener<AuthResult>() 
                                    @Override
                                    public void onComplete(@NonNull Task<AuthResult> task) 
                                        if (task.isSuccessful() && auth.getCurrentUser() != null)
                                            Toast.makeText(MainActivity.this, "Logged In Successfully!", Toast.LENGTH_LONG).show();
                                            Intent intent = new Intent(MainActivity.this, PatientSignUp.class);
                                            startActivity(intent);

                                        

                                    
                                ).addOnFailureListener(new OnFailureListener() 
                            @Override
                            public void onFailure(@NonNull Exception e) 
                                Toast.makeText(MainActivity.this, "Error Logging in with Patient Account!", Toast.LENGTH_LONG).show();


                            
                        );
                    
                
            );