Идентификация входа в систему с использованием Firebase неуспешно

Question

Я пытаюсь войти с учетными данными так же, как и во время регистрации. У Firebase уже есть записи зарегистрированных пользователей. Каждый раз, когда я пытаюсь войти в систему, вы видите «Login Unsuccessful». Я не вижу никаких проблем с кодом. Пожалуйста помоги.

public class LoginFragment extends Fragment implements View.OnClickListener { 
private EditText email_login, password_login; 
private TextView register_login; 
private Button button_login; 
private FirebaseAuth firebaseAuth; 
private ProgressDialog progressDialog; 

public LoginFragment() { 
    // Required empty public constructor 
} 


@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    View userLoginFragment = inflater.inflate(R.layout.fragment_login, container, false); 


    email_login = (EditText) userLoginFragment.findViewById(R.id.email_login); 
    password_login = (EditText) userLoginFragment.findViewById(R.id.password_login); 
    register_login = (TextView) userLoginFragment.findViewById(R.id.register_login); 
    button_login = (Button) userLoginFragment.findViewById(R.id.button_login); 
    progressDialog = new ProgressDialog(this.getActivity()); 


    button_login.setOnClickListener(this); 
    register_login.setOnClickListener(this); 

    firebaseAuth = FirebaseAuth.getInstance(); 

    if(firebaseAuth.getCurrentUser()!=null){ 
     ProfileFragment profileFragment = new ProfileFragment(); 
     FragmentManager fragmentManager = getFragmentManager(); 
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
     fragmentTransaction.replace(R.id.main_container, profileFragment); 
     fragmentTransaction.commit(); 
    } 

    return userLoginFragment; 
} 

@Override 
public void onClick(View v) { 

    if (v == button_login) 
     userLogin(); 

    if (v == register_login) { 
     UserRegisterFragment userRegisterFragment = new UserRegisterFragment(); 
     FragmentManager fragmentManager = getFragmentManager(); 
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
     fragmentTransaction.replace(R.id.main_container, userRegisterFragment); 
     fragmentTransaction.commit(); 
    } 

}//End of onClick() method 

public void userLogin(){ 
    String email = email_login.getText().toString().trim(); 
    String password = password_login.getText().toString().trim(); 

    if (email.length() == 0) { 
     email_login.setError("Username is required"); 
     email_login.requestFocus(); 
    } 
    if (password.length() == 0) { 
     password_login.setError("Password is required"); 
     password_login.requestFocus(); 
    } 
    if (email.length()>0 && password.length()>0){ 
     progressDialog.setMessage("Signing in..."); 
     progressDialog.show(); 
     firebaseAuth.signInWithEmailAndPassword(email,password).addOnCompleteListener(this.getActivity(), new OnCompleteListener<AuthResult>() { 
      @Override 
      public void onComplete(@NonNull Task<AuthResult> task) { 
       if (!task.isSuccessful()) { 
        Toast.makeText(LoginFragment.this.getActivity(), "Login unsuccessful!", Toast.LENGTH_SHORT).show(); 
        progressDialog.dismiss(); 

       } 

       else{ 


        Toast.makeText(LoginFragment.this.getActivity(), "Login successful!", Toast.LENGTH_SHORT).show(); 
        progressDialog.dismiss(); 

        ProfileFragment profileFragment = new ProfileFragment(); 
        FragmentManager fragmentManager = getFragmentManager(); 
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
        fragmentTransaction.replace(R.id.main_container, profileFragment); 
        fragmentTransaction.commit(); 
       } 
      } 
     }); 

    } 

} 
} 

Answer 1

Изменить код, чтобы показать причину отказа:

if (!task.isSuccessful()) { 
    Toast.makeText(LoginFragment.this.getActivity(), 
     "Login unsuccessful: " + task.getException().getMessage(), //ADD THIS 
      Toast.LENGTH_SHORT).show(); 
    progressDialog.dismiss(); 

}