在 Swift 中使用 Firebase 身份验证重新发送代码

Question

由于没有直接的方法可以在发送代码后重新发送代码，因此我尝试使用以下方法再次重新发送代码：

 func sendOTPGetVerfID(phoneNum: String, completion: @escaping((_ verificationID: String?, _ error: Error?) -> Void)) {

      PhoneAuthProvider.provider().verifyPhoneNumber( phoneNum , uiDelegate: nil) { (verificationID, error) in

        if let error = error {
            QL1(error.localizedDescription)
            completion(nil, error)
            return
        }
        // Sign in using the verificationID and the code sent to the user
        // ...
        QL1("VerificationID : \(verificationID ?? "")")
        completion(verificationID,nil)
    }
}

这里的问题是，我第二次接收不到verificationID，调用上面的方法 任何帮助表示赞赏

Answer 1

在重新发送 OTP 按钮点击时调用 requestOtp() 方法。

import FirebaseAuth

func requestOtp() {
let phNo = "Your phone number"
PhoneAuthProvider.provider().verifyPhoneNumber(phNo, uiDelegate: nil) { (verificationID, error) in
        if let error = error {
            print(error.localizedDescription)
            return
        }
        // Sign in using the verificationid and the code sent to the user
        // ...
      UserDefaults.standard.set(verificationID, forKey: "authVerificationID")
    }
}

使用 Auth 验证代码：

func verifyNumberWith(verificationCode: String) {
  let verificationID=UserDefaults.standard.string(forKey:"authVerificationID")
    let credential = PhoneAuthProvider.provider().credential(
        withVerificationID: verificationID ?? "",
        verificationCode: verificationCode)

    Auth.auth().signIn(with: credential) { (authResult, error) in
        //Do your actions. 
    }
}