Firebase電話身份驗證憑據與firebase中的Google登錄鏈接

Question

我已經在我的應用程序中使用firebase身份驗證實現了兩步身份驗證，其中我使用gmail，facebook或簡單的電子郵件登錄進行身份驗證。 由於數字電話驗證已遷移到firebase，我已通過將現有登錄帳戶（Facebook，gmail或電子郵件）與電話身份驗證憑據相關聯來實施firebase電話身份驗證。 與Facebook和電子郵件帳戶一起使用時，它工作正常。 當用戶通過谷歌登錄並嘗試通過電話驗證驗證移動設備時，將打印以下日志：

signInWithCredential：失敗

com.google.firebase.auth.FirebaseAuthUserCollisionException：已存在具有相同電子郵件地址但登錄憑據不同的帳戶。 使用與此電子郵件地址關聯的提供商登錄。

閱讀這篇文章 。 它與文章中提到的問題相同嗎？ 有沒有相同的解決方案..

Answer 1

在通過互聯網和firebase文檔本身進行研究之后，我使用firebase auth在app中找到了這個兩步驗證的解決方案。

firebaseAuth.getCurrentUser().updatePhoneNumber(credential).addOnCompleteListener(this, new OnCompleteListener<Void>() {
        @Override
        public void onComplete(@NonNull Task<Void> task) {
            if (task.isSuccessful()) {
                Log.d(TAG, "signInWithCredential:success");

                Snackbar.make(findViewById(android.R.id.content), "Mobile Verified Successfully.",
                        Snackbar.LENGTH_SHORT).show();

            } else {
                Log.w(TAG, "signInWithCredential:failure", task.getException());
                if (task.getException() instanceof FirebaseAuthInvalidCredentialsException) {
                    //mVerificationField.setError("Invalid code.");
                    Snackbar.make(findViewById(android.R.id.content), "Invalid Code.",
                            Snackbar.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(context,"signInWithCredential:failure"+task.getException(),
                            Snackbar.LENGTH_LONG).show();
                }
            }
        }
    });

只需將PhoneAuthCredential傳遞給上述方法，它就會驗證手機是否已分配給您現有的帳戶。 確保任何其他帳戶都不使用它。

PhoneAuthCredential credential = PhoneAuthProvider.getCredential(verificationId, code);

Answer 2

現在可以在firebase中使用手機驗證。這是使用Firebase進行電話驗證的代碼：如果有任何問題費用請問我。

EditText phoneNum,Code;           //// two edit text one for enter phone number other for enter OTP code
Button sent_,Verify;                    // sent_ button to request for verification and verify is for to verify code
private PhoneAuthProvider.ForceResendingToken mResendToken;
private PhoneAuthProvider.OnVerificationStateChangedCallbacks mCallbacks;
private FirebaseAuth mAuth;
private String mVerificationId;

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

    phoneNum =(EditText) findViewById(R.id.fn_num);
    Code =(EditText) findViewById(R.id.code);

    sent_ =(Button)findViewById(R.id.sent_nu);
    Verify =(Button)findViewById(R.id.verify);

    callback_verificvation();                                




    mAuth = FirebaseAuth.getInstance();



    sent_.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String num=phoneNum.getText().toString();
            startPhoneNumberVerification(num);                  // call function for receive OTP 6 digit code
        }
    });





    Verify.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String code=Code.getText().toString();
            verifyPhoneNumberWithCode(mVerificationId,code);                 //call function for verify code

        }
    });
}







private void startPhoneNumberVerification(String phoneNumber) {
    // [START start_phone_auth]
    PhoneAuthProvider.getInstance().verifyPhoneNumber(
            phoneNumber,        // Phone number to verify
            60,                 // Timeout duration
            TimeUnit.SECONDS,   // Unit of timeout
            this,               // Activity (for callback binding)
            mCallbacks);        // OnVerificationStateChangedCallbacks
    // [END start_phone_auth]


}







private void signInWithPhoneAuthCredential(PhoneAuthCredential credential) {
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (task.isSuccessful()) {
                        // Sign in success, update UI with the signed-in user's information

                        FirebaseUser user = task.getResult().getUser();
                        Toast.makeText(getApplicationContext(), "sign in successfull", Toast.LENGTH_SHORT).show();
                        // [START_EXCLUDE]

                        // [END_EXCLUDE]
                    } else {
                        // Sign in failed, display a message and update the UI

                        if (task.getException() instanceof FirebaseAuthInvalidCredentialsException) {
                            // The verification code entered was invalid
                            // [START_EXCLUDE silent]

                            // [END_EXCLUDE]
                        }
                        // [START_EXCLUDE silent]
                        // Update UI

                        // [END_EXCLUDE]
                    }
                }
            });
}






private void verifyPhoneNumberWithCode(String verificationId, String code) {
    // [START verify_with_code]
    PhoneAuthCredential credential = PhoneAuthProvider.getCredential(verificationId, code);
    // [END verify_with_code]
    signInWithPhoneAuthCredential(credential);
}










private void callback_verificvation() {

    mCallbacks = new PhoneAuthProvider.OnVerificationStateChangedCallbacks() {

        @Override
        public void onVerificationCompleted(PhoneAuthCredential credential) {

            signInWithPhoneAuthCredential(credential);
        }

        @Override
        public void onVerificationFailed(FirebaseException e) {
            // This callback is invoked in an invalid request for verification is made,

        }

        @Override
        public void onCodeSent(String verificationId,
                               PhoneAuthProvider.ForceResendingToken token) {
            // The SMS verification code has been sent to the provided phone number, we
            // now need to ask the user to enter the code and then construct a credential
            // by combining the code with a verification ID.


            // Save verification ID and resending token so we can use them later
            mVerificationId = verificationId;
            mResendToken = token;

        }
    };

Answer 3

之所以拋出此異常，是因為您已將電子郵件pw登錄和facebook登錄連接在一起，使用facebook one中使用的相同電子郵件的Google帳戶未關聯在一起。 默認情況下，firebase不允許來自同一電子郵件的多個帳戶發生此沖突。

要解決此問題，您有兩種選擇

1.將谷歌帳戶鏈接到Facebook並使用電子郵件發送給我們

mAuth.getCurrentUser().linkWithCredential(credential); 

將新憑據添加到現有登錄用戶。

2.從firebase控制台啟用來自同一電子郵件（不推薦）的多個帳戶

這將為谷歌登錄用戶創建新的uid，之前的Facebook登錄用戶將擁有舊的。