Xamarin Firebase PhoneAuth

Question

我需要创建一个具有Firebase Phone Auth的Xamarin应用程序（不是表单，而是分开的iOS和Android项目）。大多数文档都表明支持Facebook Auth，但我也需要PhoneAuth。

我找到了Xamarin.Firebase.Auth，显然它支持它，但是我无法实现它，也看不到任何文档应该使用哪个接口。

Answer 1

Android和iOS都需要在Firebase控制台中进行设置以及特定于平台的应用程序设置，因此必须阅读Google Firebase Auth文档，并且用户需要根据您应用的各个发行国家/地区的法律法规要求通知手机使用/费用（请注意Firebase文档...），iOS需要设置APN通知，等等...

通过Xamarin.Firebase.Auth示例Android ：

文件：https：//firebase.google.com/docs/auth/android/phone-auth

PhoneAuthCallbacks phoneAuthCallbacks = new PhoneAuthCallbacks();
PhoneAuthProvider.Instance.VerifyPhoneNumber("555-555-5555", 60, TimeUnit.Seconds, this, phoneAuthCallbacks);
// You can now obtain a user credential via the verification code and verification ID and 

//通过凭据登录用户（请参阅OnVerificationStateChangedCallbacks）

示例PhoneAuthProvider.OnVerificationStateChangedCallbacks类：

public class PhoneAuthCallbacks : PhoneAuthProvider.OnVerificationStateChangedCallbacks
{
    public override void OnVerificationCompleted(PhoneAuthCredential credential)
    {
        // This callback will be invoked in two situations:
        // 1 - Instant verification. In some cases the phone number can be instantly
        //     verified without needing to send or enter a verification code.
        // 2 - Auto-retrieval. On some devices Google Play services can automatically
        //     detect the incoming verification SMS and perform verification without
        //     user action.         
    }

    public override void OnVerificationFailed(FirebaseException exception)
    {
        // This callback is invoked in an invalid request for verification is made,
        // for instance if the the phone number format is not valid.
    }

    public override void OnCodeSent(string verificationId, PhoneAuthProvider.ForceResendingToken forceResendingToken)
    {
        // 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.
        base.OnCodeSent(verificationId, forceResendingToken);
    }
}

通过Xamarin.Firebase.iOS.Auth示例的iOS ：

文件：https：//firebase.google.com/docs/auth/ios/phone-auth

var verificationID = await PhoneAuthProvider.DefaultInstance.VerifyPhoneNumberAsync("555-555-5555", null);
// You can now obtain a user credential via the verification code and verification ID.
// Now you can sign the user in via the credential