Update April 27, 2016:
Step 3 - ViewController.swift is modified with Xcode 7.3 (Swift 2.2).
This post shows how to display the user email and profile picture with Google Sign-In for iOS.
Procedure
1. Create a basic sign-in button with instructions in this tutorial:
Google Sign-In for iOS - Create a GIDSignInButton programmatically in Swift
2. Modify AppDelegate.swift:
//Modify signIn function with didSignInForUser:
func signIn(signIn: GIDSignIn!, didSignInForUser user: GIDGoogleUser!,
withError error: NSError!) {
if (error == nil) {
let name = user.profile.name
let email = user.profile.email
var imageURL = ""
if user.profile.hasImage {
imageURL = user.profile.imageURLWithDimension(100).absoluteString
}
NSNotificationCenter.defaultCenter().postNotificationName(
"ToggleAuthUINotification",
object: nil,
userInfo: ["statusText": "Signed in user:\n\(name)", "email" : email, "imageURL" : imageURL])
}
...
//Modify signIn function with didDisconnectWithUser:
func signIn(signIn: GIDSignIn!, didDisconnectWithUser user:GIDGoogleUser!,
withError error: NSError!) {
NSNotificationCenter.defaultCenter().postNotificationName(
"ToggleAuthUINotification",
object: nil,
userInfo: ["statusText": "User has disconnected.", "email" : ""])
}
3. Modify ViewController.swift:
Update April 27, 2016:
import UIKit
class ViewController: UIViewController, GIDSignInUIDelegate {
var btnSignIn : GIDSignInButton!
var btnSignOut : UIButton!
var btnDisconnect : UIButton!
var label : UILabel!
var imageView : UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
GIDSignIn.sharedInstance().uiDelegate = self
btnSignIn = GIDSignInButton(frame: CGRectMake(0,0,230,48))
btnSignIn.center = view.center
btnSignIn.style = GIDSignInButtonStyle.Standard
view.addSubview(btnSignIn)
btnSignOut = UIButton(frame: CGRectMake(0,0,100,30))
btnSignOut.center = CGPointMake(view.center.x, 100)
btnSignOut.setTitle("Sign Out", forState: UIControlState.Normal)
btnSignOut.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal)
btnSignOut.setTitleColor(UIColor.cyanColor(), forState: UIControlState.Highlighted)
btnSignOut.addTarget(self, action: #selector(btnSignOutPressed), forControlEvents: UIControlEvents.TouchUpInside)
view.addSubview(btnSignOut)
btnDisconnect = UIButton(frame: CGRectMake(0,0,100,30))
btnDisconnect.center = CGPointMake(view.center.x, 200)
btnDisconnect.setTitle("Disconnect", forState: UIControlState.Normal)
btnDisconnect.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal)
btnDisconnect.setTitleColor(UIColor.cyanColor(), forState: UIControlState.Highlighted)
btnDisconnect.addTarget(self, action: #selector(btnDisconnectPressed), forControlEvents: UIControlEvents.TouchUpInside)
view.addSubview(btnDisconnect)
label = UILabel(frame: CGRectMake(0,0,300,200))
label.center = CGPointMake(view.center.x, 430)
label.numberOfLines = 0
label.text = "Please Sign in."
label.textAlignment = NSTextAlignment.Center
view.addSubview(label)
imageView = UIImageView(frame: CGRectMake(0, 0, 100, 100))
imageView.center = view.center
view.addSubview(imageView)
NSNotificationCenter.defaultCenter().addObserver(self,
selector: #selector(receiveToggleAuthUINotification(_:)),
name: "ToggleAuthUINotification",
object: nil)
toggleAuthUI()
}
func btnSignOutPressed() {
print(GIDSignIn.sharedInstance().currentUser.profile.email)
print(GIDSignIn.sharedInstance().currentUser.profile.name)
GIDSignIn.sharedInstance().disconnect()
label.text = "Disconnecting."
}
func btnDisconnectPressed() {
label.text = "Signed out."
toggleAuthUI()
}
func toggleAuthUI() {
print("toggleAuthUI")
if (GIDSignIn.sharedInstance().hasAuthInKeychain()){
// Signed in
btnSignIn.hidden = true
btnSignOut.hidden = false
btnDisconnect.hidden = false
//NEW!! The code below is required if the app is restarted and already signed in previously.
if (GIDSignIn.sharedInstance().currentUser == nil) {
print("no user info")
GIDSignIn.sharedInstance().signInSilently()
}
} else {
btnSignIn.hidden = false
btnSignOut.hidden = true
btnDisconnect.hidden = true
}
}
deinit {
NSNotificationCenter.defaultCenter().removeObserver(self,
name: "ToggleAuthUINotification",
object: nil)
}
@objc func receiveToggleAuthUINotification(notification: NSNotification) {
if (notification.name == "ToggleAuthUINotification") {
self.toggleAuthUI()
if notification.userInfo != nil {
let userInfo:Dictionary<String,String!> =
notification.userInfo as! Dictionary<String,String!>
self.label.text = userInfo["statusText"]!+"\n\(userInfo["email"]!)"
if userInfo["imageURL"] == nil {
self.imageView.image = nil
} else {
let url = NSURL(string: userInfo["imageURL"]!)!
self.imageView.image = UIImage(data: NSData(contentsOfURL: url)!)
}
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
=====
Original post March 16, 2016:
//Modified blue texts:
var imageView : UIImageView!
override func viewDidLoad() {
...
label = UILabel(frame: CGRectMake(0,0,300,200))
label.center = CGPointMake(view.center.x, 430)
label.numberOfLines = 0
label.text = "Please Sign in."
label.textAlignment = NSTextAlignment.Center
view.addSubview(label)
imageView = UIImageView(frame: CGRectMake(0, 0, 100, 100))
imageView.center = view.center
view.addSubview(imageView)
...
//And modify this:
@objc func receiveToggleAuthUINotification(notification: NSNotification) {
if (notification.name == "ToggleAuthUINotification") {
self.toggleAuthUI()
if notification.userInfo != nil {
let userInfo:Dictionary<String,String!> =
notification.userInfo as! Dictionary<String,String!>
self.label.text = userInfo["statusText"]!+"\n\(userInfo["email"]!)"
if userInfo["imageURL"] == nil {
self.imageView.image = nil
} else {
let url = NSURL(string: userInfo["imageURL"]!)!
self.imageView.image = UIImage(data: NSData(contentsOfURL: url)!)
}
}
}
}
=====
Result
Related Information:
Google Sign-In for iOS - Create a GIDSignInButton programmatically in Swift
Google Sign-In for iOS - Get User Name, Email and Profile Picture without Nofitication
Google Sign-In for iOS - Create a custom sign-in button programmatically
Facebook SDK and Swift - Display User Name and Profile Picture
