ios - 如何从 firebase 错误中获取更多信息？

Question

我收到来自 firebase 的错误消息:

An internal error has occured, print and inspect the error details from more information.

我怎么知道错误是什么？？，

这是我打印错误的代码

 let credential = FIRFacebookAuthProvider.credentialWithAccessToken(FBSDKAccessToken.currentAccessToken().tokenString)
    FIRAuth.auth()?.signInWithCredential(credential, completion: {(user, error) in
        if error != nil {
            SCLAlertView().showError("error #1", subTitle: (error?.localizedDescription)!)
            return
        }
})

Answer 1

您可以将错误从Error 转换为NSError，然后获取错误代码。因此，您将能够获得 FIRAuthErrorCode。

例如:

let credential = FIRFacebookAuthProvider.credential(withAccessToken: FBSDKAccessToken.current().tokenString)
    FIRAuth.auth()?.signIn(with: credential, completion: {(user, error) in
        if error != nil {
            let castedError = error! as NSError
            let firebaseError = FIRAuthErrorCode(rawValue: castedError.code)
            if firebaseError != nil {
                switch(firebaseError!) {
                case .errorCodeWrongPassword:
                    //do something or break
                    break
                default:
                    //do something or break
                    break
                }
            }
        }
    })

检查 FIRAuthErrorCode here 中所有可能的错误