Firebase signInWithEmailAndPassword和createUserWithEmailAndPassword在Android中不起作用

Question

我正在开发Android应用程序，在其中使用Firebase身份验证通过提供电子邮件和密码来进行用户登录。我使用了Firebase提供的基本教程，但是在输入用户ID和密码后，我发现登录或创建帐户按钮均无效。

当我调试它时，我发现控件不会执行以下操作：

public void onComplete(@NonNull Task<AuthResult> task)

在：

mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>()

要么：

mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>()

登录和创建帐户的代码为：

private void createAccount(String email, String password)
{
    Log.d(TAG, "createAccount:" + email);
    if (!validateForm())
    {
        return;
    }

    mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
    {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task)
                {


                        if (task.isSuccessful()) 
                       {
                            Log.d(TAG, "createUserWithEmail:success");
                            FirebaseUser user = fAuth.getCurrentUser();
                            updateUI(user);
                        } 

                       else 
                       {
                         Log.w(TAG,"createUserWithEmail:failure",task.getException());
                            Toast.makeText(LoginActivity.this, "Authentication failed.", Toast.LENGTH_SHORT).show();
                            updateUI(null);
                        }

                }
    });
}

private void signIn(String email, String password)
{
    Log.d(TAG, "signIn:" + email);
    if (!validateForm())
    {
        return;
    }

    mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
    {
        @Override
        public void onComplete(@NonNull Task<AuthResult> task)
        {
            if (task.isSuccessful())
            {
                Log.d(TAG, "signInWithEmail:success");
                FirebaseUser user = fAuth.getCurrentUser();
                updateUI(user);
            }

            else
            {
                Log.w(TAG, "signInWithEmail:failure", task.getException());
                Toast.makeText(LoginActivity.this, "Authentication failed.", Toast.LENGTH_SHORT).show();
                updateUI(null);
            }
            if (!task.isSuccessful())
            {
                mStatusTextView.setText(R.string.auth_failed);
            }

        }
    });

}

它只是跳过了这两种方法的内部，什么也没有返回。我按照与教程中完全相同的方式进行操作，但是我不了解确切的问题。有人可以帮我解决我在哪里出问题。

Answer 1

在代码中进行以下更改

声明AuthListener：

       // [START declare_auth_listener]
    private FirebaseAuth.AuthStateListener mAuthListener;
    // [END declare_auth_listener]

   // [START declare_auth]
    private FirebaseAuth mAuth;
    // [END declare_auth]

在onStart（）和onStop（）中添加列表器：

@Override
public void onStart() {
    super.onStart();
    mAuth.addAuthStateListener(mAuthListener);
}

@Override
public void onStop() {
    super.onStop();
    if (mAuthListener != null) {
        mAuth.removeAuthStateListener(mAuthListener);
    }
}

然后在Activity的onCreate（）中添加AuthStateListner方法，它将在每次创建Activity时检查Auth状态：

// [START auth_state_listener] ,this method execute as soon as there is a change in Auth status , such as user sign in or sign out.
        mAuthListener = new FirebaseAuth.AuthStateListener() {
            @Override
            public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
                FirebaseUser user = firebaseAuth.getCurrentUser();

                if (user != null) {   
                    // User is signed in        
                    //redirect 
                  updateUI(user);

                } else {
                    // User is signed out
                    Log.d(TAG, "onAuthStateChanged:signed_out");
                  updateUI(null);
                }

            }
        };
 // [END auth_state_listener]

对于使用电子邮件密码登录，请执行此操作。

        private void signIn(String email, String password)
       {
    Log.d(TAG, "signIn:" + email);
    if (!validateForm())
    {
        return;
    }

    mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
    {
        @Override
        public void onComplete(@NonNull Task<AuthResult> task)
        {
         Log.d(LOG_TAG, " Verification : signIn With Email:onComplete:" + task.isSuccessful());
                    //  If sign in succeeds i.e if task.isSuccessful(); returns true then the auth state listener will be notified and logic to handle the
                    // signed in user can be handled in the listener.


           // If sign in fails, display a message to the user.
             if (!task.isSuccessful()) {
                        try {
                            throw task.getException();
                        } catch (FirebaseAuthInvalidUserException e) {
                            mStatusTextView.setError("Invalid Emaild Id");
                            mStatusTextView.requestFocus();
                        } catch (FirebaseAuthInvalidCredentialsException e) {
                            Log.d(LOG_TAG , "email :" + email);
                            mStatusTextView.setError("Invalid Password");
                            mStatusTextView.requestFocus();
                        } catch (FirebaseNetworkException e) {
                            showErrorToast("error_message_failed_sign_in_no_network");
                        } catch (Exception e) {
                            Log.e(LOG_TAG, e.getMessage());
                        }
                        Log.w(LOG_TAG, "signInWithEmail:failed", task.getException());
                        Toast.makeText(LoginActivity.this, R.string.login_error,
                                Toast.LENGTH_SHORT).show();
                        updateUI(null);
        }
    });

}