是否可以在Firebase中使用电子邮件和电话号码进行身份验证？

Question

I am looking for a way in swift to make user sign up with his/her phone number then add his/her email and password.
But when user logs in , he/she logs in only with email and password.

The phone number is only for security reasons.

Answer 1

You can link an email and password to a user account that is created via phone authentication but Firebase Auth does not enforce 2 factor authentication the next time the user signs in. The user is able to log in with either (email/password or phone) without requiring both. You will need to implement your own custom solution for this. Please file a request via Firebase support or the official Firebase Google Group for 2 factor auth.

If you wish to just verify the phone number and link it to the account but not require it next sign-in, you can after you create user with email and password, ask the user for the phone number, call:

[[FIRPhoneAuthProvider provider] verifyPhoneNumber:phoneNumber ...]

which resolves with a verificationID. You then initialize a phone auth credential after getting the SMS code:

FIRPhoneAuthCredential *credential = [[FIRPhoneAuthProvider provider] credentialWithVerificationID:verificationID verificationCode:verificationCode];

Finally you call: [[[FIRAuth auth] currentUser] linkWithCredential:credential]

on the currentUser using the phone credential. This will add that phone number to the email/password user. You can consider it verified. The next time they sign in with email/password you can access that via user.phoneNumber.