Sorry if this is a repetative question but I have tried other people's answers here and none of the worked. I was to keep the user signed in after exiting my app. I am using email authentication and backend is Fire base. I tried implementing a function an app delegate but had no luck. any advice is appreciated.
override func viewDidAppear(_ animated: Bool) {
let auth = Auth.auth()
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
auth.addStateDidChangeListener { [weak self] (_, user) in
if user != nil {
let vc = self?.storyboard?.instantiateViewController(withIdentifier: "Profile")
self?.present(vc!, animated: true, completion: nil)
} else {
//
}
}
return true
}
}
Related
I am new to Xcode and I am working on my Google sign-in project. After successfully logging in with google, I cannot find the user profile in firebase. I think I am missing the code for uploading user credentials to firebase. I can barely understand the documentation and I don't know what to do. By the way, how can I navigate to another view controller after signing in? I tried lots of ways but none of them work. Any help is appreciated.
My AppDelegate code:
import UIKit
import Firebase
import GoogleSignIn
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, GIDSignInDelegate{
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
FirebaseApp.configure()
GIDSignIn.sharedInstance()?.clientID = "//I have it in my actual code"
GIDSignIn.sharedInstance()?.delegate = self
return true
}
func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
if let error = error {
print(error)
return
}
guard
let authentication = user?.authentication,
let idToken = authentication.idToken
else {
return
}
let credential = GoogleAuthProvider.credential(withIDToken: idToken,
accessToken: authentication.accessToken)
}
func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
return GIDSignIn.sharedInstance().handle(url)
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
}
The code of the log-in view controller
import UIKit
import GoogleSignIn
class WelcomeViewController: UIViewController {
#IBOutlet weak var gooleButton: GIDSignInButton!
override func viewDidLoad() {
super.viewDidLoad()
}
override func viewDidAppear(_ animated: Bool) {
GIDSignIn.sharedInstance()?.presentingViewController = self
gooleButton.style = .wide
gooleButton.colorScheme = .dark
}
}
From what I see your code signs the user in with Google to get the credentials, but then doesn't call signIn(with: ) which is needed in order to sign in to Firebase Authentication.
Have a look at Step 3: authenticate with Firebase. While the code there looks a bit intimidating, that's mostly because it handled many different cases. At its minimum you can sign in to Firebase with your credentials by doing:
Auth.auth().signIn(with: credential) { authResult, error in
if let error = error {
let authError = error as NSError
print(error.localizedDescription)
return
}
// User is signed in
// ...
}
How can I go to another view controller after successfully signing with google? I've tried "self.inputViewController?.performSegue(withIdentifier: "goToMain", sender: self)" in my App Delegate but not getting any respond. Am I supposed to add the method in App Delegate or the view controller with the sign-in button?
App Delegate
import UIKit
import Firebase
import GoogleSignIn
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, GIDSignInDelegate{
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
FirebaseApp.configure()
GIDSignIn.sharedInstance()?.clientID = "my_client_id"
GIDSignIn.sharedInstance()?.delegate = self
return true
}
func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
if let error = error {
print(error)
return
}
guard
let authentication = user?.authentication,
let idToken = authentication.idToken
else {
return
}
let credential = GoogleAuthProvider.credential(withIDToken: idToken,
accessToken: authentication.accessToken)
Auth.auth().signIn(with: credential) { authResult, error in
if let error = error {
let authError = error as NSError
print(authError.localizedDescription)
return
}
self.inputViewController?.performSegue(withIdentifier: "goToMain", sender: self)
}
}
func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
return GIDSignIn.sharedInstance().handle(url)
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
}
Are you sure about the inputViewController is not nil? This may a reason for not working.
You can add a function to test this, or you can use the print function to check, or, you can use debug point to check inputViewController is nil or not.
I'd like to add comment but I don't have enough reputation point :).
Good luck.
I am currently signing my user out like this:
print(GIDSignIn.sharedInstance()?.currentUser != nil) // true - signed in
GIDSignIn.sharedInstance()?.signOut()
print(GIDSignIn.sharedInstance()?.currentUser != nil) // false - signed out
Here is my is My AppDelegate
class AppDelegate: UIResponder, UIApplicationDelegate, GIDSignInDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
FirebaseApp.configure()
// Intializing Google Sign In...
GIDSignIn.sharedInstance().clientID = FirebaseApp.app()?.options.clientID
GIDSignIn.sharedInstance().delegate = self
GIDSignIn.sharedInstance().scopes = []
// FirebaseApp.app()?.options.clientID = "674329356626-ev6hn62oiqcj0o228nt85vv2bgroa45j.apps.googleusercontent.com"
return true
}
func application(_ application: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any])
-> Bool {
return GIDSignIn.sharedInstance().handle(url)
}
func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
if error != nil{
print(error.localizedDescription)
return
}
let credential = GoogleAuthProvider.credential(withIDToken: user.authentication.idToken, accessToken: user.authentication.accessToken)
// Logging to Firebase...
Auth.auth().signIn(with: credential) { (res, err) in
if err != nil{
print((err?.localizedDescription)!)
return
}
// User Logged In Successfully...
// Sending Notification To UI...
NotificationCenter.default.post(name: NSNotification.Name("SIGNIN"), object: nil)
// Printing Email ID
print(res?.user.email)
}
// Check for sign in error
if let error = error {
if (error as NSError).code == GIDSignInErrorCode.hasNoAuthInKeychain.rawValue {
print("The user has not signed in before or they have since signed out.")
} else {
print("\(error.localizedDescription)")
}
return
}
// Post notification after user successfully sign in
NotificationCenter.default.post(name: .signInGoogleCompleted, object: nil)
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
}
Sign in code:
GIDSignIn.sharedInstance()?.signIn()
Once the user is signed in, what is the best way for me to sign them out and prompt for them to sign in again? Please note that I am using the GoogleSignIn api.
Also note that I setup my google sign in functionality from here https://developers.google.com/identity/sign-in/ios/start?ver=swift
What seems to be happening in my app is the when my sign out function executes the current user is set to nil. However, when the user is signed out I can still access the data from the signed out user. I want the user to be able to sign out of their current account and sign into a new account for which I can access data from their newly signed in account.
My app should not retain data from the previous logged out user.
GIDSignIn.sharedInstance()?.signOut()
I also setup my google sign with firebase which seemed to help
I am trying to get the connectivity status of the iPhone and the Apple Watch. I have tried using CoreBluetooth which didn't work. I think I am on the right track but I need a bit of help. My code is below :)
AppDelegate.swift
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
if WCSession.isSupported() {
let session = WCSession.default
session.delegate = self
session.activate()
}
return true
}
Detail.swift
override func viewDidLoad() {
super.viewDidLoad()
if (WCSession.default.isPaired){
print("thumbsup")
} else{
print("thumbsdown")
}
}
you also have to check whether the activation state is active, otherwise isPaired should not be evaluated
I need create in my app a code that receive a remote information and push it to user when app is on background, I read on web that I need to use didReceiveRemoteNotification on appDelegate, to use remote push notication. I read something about and I need keys and certificates, I do not understand how to use didReceiveRemoteNotification
I need to learn about to push remote notification and how to use. I would like a tutorial or example how create it using swift 2.3.
I used this link and I found it the most helpful
http://www.appcoda.com/push-notification-ios/
I used this app for testing
https://itunes.apple.com/us/app/easy-apns-provider-push-notification/id989622350?mt=12
This is the code I have in my AppDelegate
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
registerForPushNotifications(application)
print(UIDevice.currentDevice().identifierForVendor!.UUIDString)
return true
}
func registerForPushNotifications(application: UIApplication) {
let notificationSettings = UIUserNotificationSettings(
forTypes: [.Badge, .Sound, .Alert], categories: nil)
application.registerUserNotificationSettings(notificationSettings)
}
func application(application: UIApplication, didRegisterUserNotificationSettings notificationSettings: UIUserNotificationSettings) {
if notificationSettings.types != .None {
application.registerForRemoteNotifications()
}
}
func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
let tokenChars = UnsafePointer<CChar>(deviceToken.bytes)
var tokenString = ""
for i in 0..<deviceToken.length {
tokenString += String(format: "%02.2hhx", arguments: [tokenChars[i]])
}
print("Device Token:", tokenString)
}
func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
print("Failed to register:", error)
}