Ios Swift-从facebook登录中获取错误
首先,我看了很多例子,但似乎找不到解决办法。我想是的,但似乎不起作用 我想做的是使用facebook的Firebase auth登录方法,顺便说一句。我的问题是,当facebook方法抛出电子邮件/凭据已经存在的错误时,我想链接密码验证凭据和facebook验证凭据。我读到我可以使用Ios Swift-从facebook登录中获取错误,ios,facebook,firebase,firebase-authentication,swift4,Ios,Facebook,Firebase,Firebase Authentication,Swift4,首先,我看了很多例子,但似乎找不到解决办法。我想是的,但似乎不起作用 我想做的是使用facebook的Firebase auth登录方法,顺便说一句。我的问题是,当facebook方法抛出电子邮件/凭据已经存在的错误时,我想链接密码验证凭据和facebook验证凭据。我读到我可以使用error.email,但它没有给我访问email.error的选项。我可能错过了一些东西,我花了很多时间试图找出它 这是我的密码: func signInFacebookUser() { let fbLog
error.email
,但它没有给我访问email.error
的选项。我可能错过了一些东西,我花了很多时间试图找出它
这是我的密码:
func signInFacebookUser() {
let fbLoginManager = FBSDKLoginManager()
fbLoginManager.logIn(withReadPermissions: ["public_profile", "email"], from: self) { (result, error) in
if let error = error {
self.errorMessagePopUp(title: "Failed to login", message: error)
return
}
guard let accessToken = FBSDKAccessToken.current() else {
print("Failed to get access token")
return
}
let credential = FacebookAuthProvider.credential(withAccessToken: accessToken.tokenString)
Auth.auth().signIn(with: credential, completion: { (user, error) in
if let error = error {
let errCode = AuthErrorCode(rawValue: error._code)!
switch errCode {
case .accountExistsWithDifferentCredential:
// somehow obtain email right here.
self.showSigninForm(attributes: self.attributes(), style: .light)
return
default:
return
}
}
self.performSegue(withIdentifier: "signInBtnPressed", sender: nil)
})
}
}
尝试此代码
@IBAction func facebookLoginButtonTapped(_ sender: UIButton) {
if Utility.checkInternet(){
let fbLoginManager: FBSDKLoginManager = FBSDKLoginManager()
fbLoginManager.logIn(withReadPermissions: ["email", "public_profile"], from: self) { (result, error) in
if (error == nil){
let fbLoginResult: FBSDKLoginManagerLoginResult = result!
if fbLoginResult.grantedPermissions != nil {
if(fbLoginResult.grantedPermissions.contains("email")){
self.facebookLogin()
}
}
}
}
}
else{
Utility.showAlert("Connection Error!", message: "Please check internet connection and retry.", viewController: (self.window?.rootViewController)!)
}
}
这对我很管用
因此,您希望获得用户试图登录facebook的电子邮件地址,对吗?您共享的链接已被应答,通过该链接上的应答接收的输出与您的输出相同expecting@KarthickRamesh是的,这是正确的。@iOSGeek okaaaayy。。。我不知道你到底想说什么。我提到的链接说要使用error.email,但它不允许我在代码中使用error.email。
func facebookLogin() {
Utility.showProgress("")
if((FBSDKAccessToken.current()) != nil) {
FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"id, name, first_name, last_name, picture.type(large), email "]).start(completionHandler: { (connection, result, error) in
if result == nil {
}
else{
self.userResults = result as! [String : AnyObject]
self.email = (self.userResults["email"] as? String) ?? ""
if (self.email != "") {
}
else{
Utility.showAlert("Login Faild", message: error?.localizedDescription, viewController: self)
}
}
})
}
}
@objc func loginButtonClicked() {
var alertController = UIAlertController()
let loginManager = LoginManager()
loginManager.logIn(readPermissions: [ReadPermission.email], >viewController: self, completion: {loginResult in
switch loginResult {
case .failed(let error):
print(error)
case .cancelled:
print("User cancelled login.")
case .success(_, _, let accessToken):
print(accessToken)
}
})
}
func getDataUser() {
let request = GraphRequest(graphPath: "me?fields=first_name,last_name,email",
parameters:[:],
httpMethod: .GET)
request.start { httpResponse, result in
switch result {
case .success(let response): do {
print("Graph Request Succeeded: \(response)")
let dicval = response.dictionaryValue
let email = dicval?.keys
print("Graph Request Succeeded: \(String(describing: email))")
}
case .failed(let error):
print("Graph Request Failed: \(error)")
}
}
}
}