Google didSignInForUser doesn't fire in swift 3 - ios

Question

I am doing Google sign in in my project. I installed the SDK using CocoaPods. I have this same app written in Objective-C before. So I dragged the same Google configuration file (GoogleService-Info.plist) from my old project.
And I followed this with CocoaPods installed method. But when I press the sign in button I am directing to the Google web page and after I enter user name password it returns to my app. But this delegate doesn't trigger.
func signIn(signIn: GIDSignIn!, didSignInForUser user: GIDGoogleUser!, withError error: NSError!) {
if error == nil {
// Perform any operations on signed in user here.
let userId = user.userID // For client-side use only!
let idToken = user.authentication.idToken // Safe to send to the server
let fullName = user.profile.name
let givenName = user.profile.givenName
let familyName = user.profile.familyName
let email = user.profile.email
let dm = Datamanager.sharedInstance
dm.gplusEmail = email
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "RETURNED_GOOGLE"), object: nil)
// ...
} else {
print("\(error.localizedDescription)")
}
}
My sign in button is a UIButton and in my ViewController I have implemented in this way:
#IBAction func googleClick(_ sender: UIButton) {
strLoggedWay="google"
GIDSignIn.sharedInstance().signIn()
}
Please help me. What's wrong with the process my code?

Answer 1

//In your login view controller
#IBAction func googleClick(_ sender: UIButton) {
strLoggedWay="google"
GIDSignIn.sharedInstance().clientID = //getGoogleClientId
GIDSignIn.sharedInstance().serverClientID = //getGoogleServerClientId
GIDSignIn.sharedInstance().uiDelegate = self
GIDSignIn.sharedInstance().delegate = self
GIDSignIn.sharedInstance().scopes = #["https://www.googleapis.com/auth/userinfo.profile","https://www.googleapis.com/auth/userinfo.email"]
GIDSignIn.sharedInstance().signIn()
}
func signIn(signIn: GIDSignIn!, didSignInForUser user: GIDGoogleUser!,
withError error: NSError!) {
if (error == nil) {
// Perform any operations on signed in user here.
let userId = user.userID // For client-side use only!
let idToken = user.authentication.idToken // Safe to send to the server
let fullName = user.profile.name
let givenName = user.profile.givenName
let familyName = user.profile.familyName
let email = user.profile.email
let dm=Datamanager.sharedInstance
dm.gplusEmail=email
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "RETURNED_GOOGLE"), object: nil)
// ...
} else {
print("\(error.localizedDescription)")
}
}