Firebase电话身份验证SMS代码null android [英] Firebase Phone Authentication SMS Code null android

问题描述

我已将 firebase 电话身份验证添加到我的android项目中.首先，一切顺利.一段时间后， onVerificationCompleted()中的短信代码为空.谢谢！

I have added firebase phone auth to my android project. First everything goes fine. After sometime, the sms code in onVerificationCompleted() is null.Thanks!!

PhoneAuthProvider.getInstance().verifyPhoneNumber(mobileNumber, 60, TimeUnit.SECONDS, FirebasePhoneAuthActivity.this, new PhoneAuthProvider.OnVerificationStateChangedCallbacks() {
    @Override
    public void onVerificationCompleted(PhoneAuthCredential phoneAuthCredential) {
        smsCode = phoneAuthCredential.getSmsCode();
        Log.i(TAG, "onVerificationCompleted: CODE " + smsCode);
        Log.i(TAG, "onVerificationCompleted: PROVIDER " + phoneAuthCredential.getProvider());
    }

    @Override
    public void onVerificationFailed(FirebaseException e) {
        e.printStackTrace();
    }

    @Override
    public void onCodeSent(String s, PhoneAuthProvider.ForceResendingToken forceResendingToken) {
        Log.i(TAG, "onCodeSent: CODE " + s);

    }

    @Override
    public void onCodeAutoRetrievalTimeOut(String s) {
        super.onCodeAutoRetrievalTimeOut(s);
        Log.i(TAG, "onCodeAutoRetrievalTimeOut: " + s);
    }
});

推荐答案

这是即时验证.在官方文档中，它说:

This is Instant Verification. In the official docs, it says:

即时验证:在某些情况下，无需发送或输入验证码即可立即验证电话号码.

Instant verification: in some cases the phone number can be instantly verified without needing to send or enter a verification code.

此外，如果您查看开源的 Android版FirebaseUI ，

Also, if you look at the open-sourced FirebaseUI for Android, on this line of code it suggests that there is a possibility of verification being a success, while sms code being absent. Such a case would denote Instant Verification. So you can safely continue to use this credential to sign the user in.

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