Question

我正在尝试使用firebase OTP验证进行注册，

我的注册页面上有两个EditText字段

（1）输入姓名

（2）输入电话号码

获得电话号码后和姓名，我正在尝试使用Firebase获取OTP。

它正在处理所有设备，但没有使用Nexus 5.

我收到错误

java.lang.NullPointerException：尝试调用虚拟方法'com.google.android.gms.tasks.Task。有关空对象引用的com.google.android.gms.common.api.GoogleApi.zzb(com.google.android.gms.common.api.internal.zzdf）

执行PhoneAuthProvider.getInstance().verifyPhoneNumber

时

这是我的代码

FirebaseApp.initializeApp(this);
    mAuth = FirebaseAuth.getInstance();
    CallBackInitialize();

private void CallBackInitialize(){
    mCallbacks = new PhoneAuthProvider.OnVerificationStateChangedCallbacks() {
        @Override
        public void onVerificationCompleted(PhoneAuthCredential credential) {

            mVerificationInProgress = false;
            updateUI(STATE_VERIFY_SUCCESS, credential);

        }

    @Override
    public void onVerificationFailed(FirebaseException e) {
        // This callback is invoked in an invalid request for verification is made,
        // for instance if the the phone number format is not valid.
        Log.w(TAG, "onVerificationFailed", e);
        // [START_EXCLUDE silent]
        mVerificationInProgress = false;
        // [END_EXCLUDE]
        if (e instanceof FirebaseAuthInvalidCredentialsException) {
            // Invalid request
            //mPhoneNumberField.setError("Invalid phone number.");
        } else if (e instanceof FirebaseTooManyRequestsException) {
            // The SMS quota for the project has been exceeded
            Snackbar.make(findViewById(android.R.id.content), "Quota exceeded.",Snackbar.LENGTH_SHORT).show();
        }
        // Show a message and update the UI
        updateUI(STATE_VERIFY_FAILED);
    }

    @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.
        Log.d(TAG, "onCodeSent:" + verificationId);

        mVerificationId=verificationId;

        Intent i = new Intent(RegistrationActivity.this, SignUpVerify.class);
        i.putExtra("mobile", mobilenumber.getText().toString());
        //i.putExtra("otp1", otp);
        i.putExtra("vCode", mVerificationId);
        i.putExtra("name", user_name.getText().toString());
        startActivity(i);
        overridePendingTransition(R.anim.righttoleft, R.anim.slide_out_left);

        progressBar.setVisibility(View.GONE);

        signup.setClickable(true);

        // Save verification ID and resending token so we can use them later
        // mVerificationId = verificationId;
        //mResendToken = token;
        // Update UI
        updateUI(STATE_CODE_SENT);
    }
};}

获取电话号码

    private void sendSmsToGivenMobileNumber(String phonrNumber){
            Log.d("Phone",phonrNumber);
            FirebaseAuth.getInstance().signOut();
            startPhoneNumberVerification(phonrNumber);
        }

 private void startPhoneNumberVerification(String phoneNumber) {
        try {
            mAuth = FirebaseAuth.getInstance();
            PhoneAuthProvider provider = PhoneAuthProvider.getInstance(mAuth);
            provider.verifyPhoneNumber(
                    "+91" + phoneNumber,        // Phone number to verify
                    60,                 // Timeout duration
                    TimeUnit.SECONDS,   // Unit of timeout
                    RegistrationActivity.this,               // Activity (for callback binding)
                    mCallbacks);        // OnVerificationStateChangedCallbacks
            mVerificationInProgress = true;

        }catch (Exception ex) {
            System.out.println("Closed : " + ex.getMessage().toString());
        }

    }

Answer 1

我有解决方案。

问题不在代码中。只是Google Play服务中的问题

解决方案1：

只需将您的设备更新为Google Play服务。

或

解决方案2：

检查您的gmail_id已添加到设备中。应添加

Answer 2

我一直面临同样的麻烦。存在一点点错误，即在代码的放置中。您在此代码中唯一要做的就是将“mCallbacks”的代码置于onCreate（）函数调用[startPhoneNumberVerification（）]之上。

这将运行您的代码。

干杯!!

在移动设备上获取错误没有在某些手机上使用Firebase进行验证吗？

2 个答案: