Below is the code, hope anyone can help me solve the Use of unresolved identifier 'SignUp' problem:
#IBOutlet var UsernameTextField: UITextField!
#IBOutlet var PasswordTextField: UITextField!
#IBOutlet var EmailTextField: UITextField!
#IBAction func LogIn(sender: AnyObject) {
}
#IBAction func Signup(sender: AnyObject) {
SignUp() //Error is here.
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
func SignUp(){
var user = PFUser()
user.username = UsernameTextField.text
user.password = PasswordTextField.text
user.email = EmailTextField.text
}
let user = PFUser()
user.username = "Name:"
user.password = "Pass:"
user.email = "Email:"
user.signUpInBackgroundWithBlock { (success: Bool, error: NSError?) -> Void in
if error == nil {
// Hooray! Let them use the app now.
} else {
// Examine the error object and inform the user.
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Make the function declaration and call start with a lower case s.
It's also worth noting you should name stuff so it's clear what is it.
#IBAction func signUpButton(sender: AnyObject) {
signUp() // Calling signUp function here that is declared below.
}
func signUp(){
// Do sign up stuff.
}
Related
I can't seem to get this to work. The database portion works and I'm getting user info as intended in the database, but it is not creating users in Firebase Auth. For the following code, it printed "can't register."
Can someone please tell me what I'm doing wrong?
import UIKit
import Firebase
import FirebaseAuth
class AddUserTableViewController: UITableViewController, UITextFieldDelegate {
#IBOutlet weak var firstNameTextField: UITextField!
#IBOutlet weak var emailTextField: UITextField!
#IBAction func saveUserButton(_ sender: Any) {
let ref: FIRDatabaseReference!
ref = FIRDatabase.database().reference()
FIRAuth.auth()?.createUser(withEmail: emailTextField.text!, password: "pass", completion: { (user, error) in
if error != nil {
print ("Can't Register")
}
else {
print ("I don't know what this means")
}
})
ref?.child("Users").childByAutoId().setValue(["First Name": self.firstNameTextField.text, "Email": self.emailTextField.text])
}
Just include Firebase, you don't need to include FirebaseAuth as well on each page.
Here's my working code for FireBase login, I did this from a Youtube tutorial a few weeks ago.
import UIKit
import Firebase
class LoginController: UIViewController {
#IBOutlet weak var menuButton:UIBarButtonItem!
#IBOutlet weak var signinSelector: UISegmentedControl!
#IBOutlet weak var signinLabel: UILabel!
#IBOutlet weak var emailTextField: UITextField!
#IBOutlet weak var passwordTextField: UITextField!
#IBOutlet weak var signinButton: UIButton!
var isSignIn:Bool = true
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func signinSelectorChanged(_ sender: UISegmentedControl) {
//Flip the boolean true to false
isSignIn = !isSignIn
//Check the boolean and set the buttons and labels
if isSignIn {
signinLabel.text = "Sign In"
signinButton.setTitle("Sign In", for: .normal)
}
else {
signinLabel.text = "Register"
signinButton.setTitle("Register", for: .normal)
}
}
#IBAction func signinButtonTapped(_ sender: UIButton) {
//Do some form validation on email and password
if let email = emailTextField.text, let pass = passwordTextField.text
{
//Check if it's signed or register
if isSignIn {
//Sign in the user with Firebase
Auth.auth().signIn(withEmail: email, password: pass, completion: { (user, error) in
//Check that user isn't nil
if let u = user {
//User is found, goto home screen
self.performSegue(withIdentifier: "goToHome", sender: self)
}
else{
//Error: Check error and show message
}
})
}
else {
//Register the user with Firebase
Auth.auth().createUser(withEmail: email, password: pass, completion: { (user, error) in
//Check that user isn't NIL
if let u = user {
//User is found, goto home screen
self.performSegue(withIdentifier: "goToHome", sender: self)
}
else {
//Check error and show message
}
})
}
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
//Dismiss the keyboard when the view is tapped on
emailTextField.resignFirstResponder()
passwordTextField.resignFirstResponder()
}
}
I'm having quite some troubles implementing Facebook login in my iOS , everything works fine if the user is not already logged in, the application fetches correctly the data from Facebook and pass them to the next ViewController , instead if is already logged in it should automatically segue to a recap page that shows user's info but i can't make it happen, currently I'm using this method :
override func viewDidLoad() {
super.viewDidLoad()
LoginButton.delegate = self
if (FBSDKAccessToken.currentAccessToken() != nil) {
self.performSegueWithIdentifier("Login", sender: self)
}
}
but in the console i get :
Facebook_Login.LoginViewController: 0x7fc04a519ca0 on Facebook_Login.ViewController: 0x7fc04a41c1e0 whose view is not in the window hierarchy!
i've also tried using the viewdidAppear method, but it segues to the recap page without updating the variables so i get an empty page
here' the complete code:
View Controller 1
import UIKit
import FBSDKLoginKit
class ViewController: UIViewController,FBSDKLoginButtonDelegate {
var nome1:String = ""
var cognome1:String = ""
var email1:String = ""
var compleanno:String = ""
var città:String = ""
var genere:String = ""
var immagine_url:String = ""
#IBOutlet weak var LoginButton: FBSDKLoginButton!
#IBAction func LoginAction(sender: AnyObject) {
LoginButton.delegate = self
LoginButton.readPermissions = ["email"]
}
func FetchInfo(){
print("scarico le informazioni...")
let parametri = ["fields":"email, first_name, last_name, birthday, hometown, gender, picture.type(large)"]
FBSDKGraphRequest(graphPath: "me", parameters: parametri).startWithCompletionHandler{(connection,result,error) -> Void in
if (error != nil){
print ("errore")
return
}
else {
if let email = result["email"] as? String {
print(email)
self.email1 = email
}
if let nome = result["first_name"] as? String {
print(nome)
self.nome1 = nome
}
if let cognome = result["last_name"] as? String {
print(cognome)
self.cognome1 = cognome
}
if let compleanno = result["birthday"] as? String{
print(compleanno)
}
if let città = result["hometown"] as? String{
print(città)
}
if var genere = result["gender"] as? String{
if (genere == "male"){
genere = "maschio"
}
else {
genere = "femmina"
}
print(genere)
}
}
if let picture = result["picture"] as? NSDictionary, data = picture["data"] as? NSDictionary, url = data["url"] as? String{
self.immagine_url = url
print(self.immagine_url)
}
}
return
}
func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!){
if (result.isCancelled == true){
print("cancellato")
}
else {
print("login effettuato")
FetchInfo()
self.performSegueWithIdentifier("Login", sender: self)
}
}
func loginButtonDidLogOut(loginButton: FBSDKLoginButton!){
}
func loginButtonWillLogin(loginButton: FBSDKLoginButton!) -> Bool{
return true
}
#IBAction func returned(segue:UIStoryboardSegue){
}
override func viewDidLoad() {
super.viewDidLoad()
LoginButton.delegate = self
}
override func viewDidAppear(animated: Bool) {
if (FBSDKAccessToken.currentAccessToken() != nil) {
FetchInfo()
if(nome1 == ""){
}
else {
self.performSegueWithIdentifier("Login", sender: self)
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let destinazione:LoginViewController = segue.destinationViewController
as! LoginViewController
destinazione.temp_nome = nome1
destinazione.temp_cognome = cognome1
destinazione.temp_email = email1
destinazione.img_profile_url = immagine_url
}
}
ViewController 2:
import UIKit
import FBSDKLoginKit
class LoginViewController: UIViewController, FBSDKLoginButtonDelegate {
var temp_nome = ""
var temp_cognome = ""
var temp_email = ""
var img_profile_url:String = ""
#IBOutlet weak var Nome_Utente: UILabel!
#IBOutlet weak var email: UILabel!
#IBOutlet weak var Immagine_Utente: UIImageView!
#IBOutlet weak var Login_button: FBSDKLoginButton!
#IBAction func Login_button_Action(sender: AnyObject) {
Login_button.delegate = self
}
func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!){
}
func loginButtonDidLogOut(loginButton: FBSDKLoginButton!){
self.performSegueWithIdentifier("Back", sender: self)
}
override func viewDidLoad() {
super.viewDidLoad()
Nome_Utente.text = "\(temp_nome)" + " " + "\(temp_cognome)"
email.text = "\(temp_email)"
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
First of all, avoid to reset your LoginButton.delegate in the LoginAction() function.
If the user is already logged in, to avoid an useless call to the Facebook Graph API (if you do not necessarily need to update his informations), you can store your user informations in CoreData or in a NSUserDefault.
If you never used it you can use the CDHelper lib (CoreDataHelper) which will allow you to use it without difficulties.
Hope I was helpful, if not, do not hesitate to give us a feedback.
Btw, in your viewDidAppear(animated: Bool) function, you have to call super.viewDidAppear(animated) !
It does not seem like my data is passed to the new view controller.
Indeed, it only works in the (first) view controller once logged in.
I believe there are a few mistakes in my work.
Please tell me where I'm wrong, I am a beginner so please be precise and efficient. Thanks a lot.
class ViewController: UIViewController, FBSDKLoginButtonDelegate
{
override func viewDidLoad()
{
super.viewDidLoad()
if FBSDKAccessToken.currentAccessToken() != nil {
//user already has access token
self.logUserData()
} else {
loginButton.readPermissions = ["public_profile", "email", "user_friends"]
loginButton.delegate = self
self.Photo.image = UIImage(named: "Why subtle bckd image1")
self.Photo2.image = UIImage(named: "Un combo unique pict")
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: PR/VAR
var firstName: String!
var lastName: String!
var email: String!
#IBOutlet var loginButton: FBSDKLoginButton!
#IBAction func loginButtonsend(sender: UIButton) {
sender.setTitle("firstName", forState: UIControlState.Normal)
sender.setTitle("lastName", forState: UIControlState.Normal)
sender.setTitle("email", forState: UIControlState.Normal)
}
#IBOutlet var Photo: UIImageView!
#IBOutlet var Photo2: UIImageView!
// MARK: FACEBOOK LOGIN
override func viewWillAppear(animated: Bool) {
self.logUserData()
}
func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!)
{ if error == nil {
let fbAccessToken = FBSDKAccessToken.currentAccessToken().tokenString
println("Logged in")
} else { println(error.localizedDescription) } }
func loginButtonDidLogOut(loginButton: FBSDKLoginButton!)
{
println("User logged out.")
}
func logUserData()
{
let graphRequest = FBSDKGraphRequest(graphPath: "me?fields=id,email,first_name,last_name", parameters: ["fields": "first_name,email,last_name"])
graphRequest.startWithCompletionHandler { (connection, result, error) -> Void in
if error != nil
{
// Process error
println(error)
}
else
{
println(result.grantedPermissions)
println("fetched user = \(result)")
var firstName = result.valueForKey("first_name")
println("firstName = \(firstName)")
var lastName = result.valueForKey("last_name")
println("lastName is = \(lastName)")
var email = result.valueForKey("email")
println("email is = \(email)")
self.performSegueWithIdentifier("showNew", sender: self)
}
}
}
// SEGUE:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "showNew") {
if let destinationVC = segue.destinationViewController as? NewViewController {
destinationVC.firstName = firstName
destinationVC.lastName = lastName
destinationVC.email = email
}
}
}
}
And in my new view controller I have the following:
class NewViewController: UIViewController {
var firstName: String!
var lastName: String!
var email: String!
#IBOutlet var firstNameLabel: UILabel!
#IBOutlet var lastNameLabel: UILabel!
#IBOutlet var emailLabel: UILabel!
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
if (firstName != nil) {
firstNameLabel.text = firstName
}
if (lastName != nil) {
lastNameLabel.text = lastName
}
if (email != nil) {
emailLabel.text = email
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func logoutButtonTapped(sender: AnyObject) {
let loginManager = FBSDKLoginManager ()
loginManager.logOut()
let loginPage = self.storyboard?.instantiateViewControllerWithIdentifier("ViewController") as ViewController
//?
let loginPageNav = UINavigationController (rootViewController: loginPage)
let appDelegate = UIApplication.sharedApplication().delegate as AppDelegate
appDelegate.window?.rootViewController = loginPageNav
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
It seems like you're never setting the variables from your ViewController, but instead are creating three which have the same name as the ones you should be using on logUserData. Just change to:
println(result.grantedPermissions)
println("fetched user = \(result)")
firstName = result.valueForKey("first_name")
println("firstName = \(firstName)")
lastName = result.valueForKey("last_name")
println("lastName is = \(lastName)")
email = result.valueForKey("email")
println("email is = \(email)")
I'm new in this website, and I already know that it helps me a LOT in coding, so thanks to the founder of this website and to the questioners and the answerers and everyone else :D
Still, one problem I have though. I have this 'Missing Argument for Parameter #1 in call' error. Its really annoying me, I'm trying to make an app, and for how much time I put into this app, I don't want to delete it. Please.
So here is the code:
class ViewController: UIViewController {
#IBOutlet var UsernameTextField: UITextField!
#IBOutlet var PasswordTextField: UITextField!
#IBOutlet var EmailTextField: UITextField!
#IBAction func LogIn(sender: AnyObject) {
}
#IBAction func SignUp(sender: AnyObject) {
SignUp() //The error is here
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
func SignUp(){
var user = PFUser()
user.username = UsernameTextField.text
user.password = PasswordTextField.text
user.email = EmailTextField.text
}
let user = PFUser()
user.username = "Name:"
user.password = "Pass:"
user.email = "Email:"
user.signUpInBackgroundWithBlock { (success: Bool, error: NSError?) -> Void in
if error == nil {
// Hooray! Let them use the app now.
} else {
// Examine the error object and inform the user.
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
You've got two functions with the same name, you should rename one of them!
First function:
#IBAction func SignUp(sender: AnyObject)
Second function:
func SignUp()
The reason you get the error is because the compiler is trying to use your first function rather than the second one, so the easiest way to fix it is to change the name of one of the functions.
Dose anyone know how I can make a user sign up with parse in Swift Xcode 6.4?
I Have searched everything and can't find one that works.
I Tried this code but it did not work.
It said:
Use of unresolved identifier PFUser
import UIKit
class SignupViewController: UIViewController {
#IBOutlet var usernameTextField: UITextField!
#IBOutlet var passwordTextField: UITextField!
#IBOutlet var emailTextField: UITextField!
#IBOutlet var messageLabel: UILabel!
#IBAction func loginVerifyButton(sender: AnyObject) {
var usrEntered = usernameTextField.text
var pwdEntered = passwordTextField.text
var emlEntered = emailTextField.text
if usrEntered != "" && pwdEntered != "" && emlEntered != "" {
// If not empty then yay, do something
} else {
WrongInfo()
}
}
func userSignUp() {
var user = PFUser()
user.username = usrEntered
user.password = pwdEntered
user.email = emlEntered
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
func WrongInfo(){
var WrongInfo:UIAlertView = UIAlertView(title: "ALL FEILDS REQUIRED", message: "Please use all feilds!", delegate: self, cancelButtonTitle: "ok")
}
}
You need to import Parse , in Appdelegate.swift file! if still getting same error import Parse in signup view controller too
You have to create your own view and then implement it/segue users to it based on the users current status. If they click your sign up button segue them to a custom view and then act accordingly. You would sign them up with a function similar to what you have offered already in your question:
func myMethod() {
var user = PFUser()
user.username = "myUsername"
user.password = "myPassword"
user.email = "email#example.com"
// other fields can be set just like with PFObject
user["phone"] = "415-392-0202"
user.signUpInBackgroundWithBlock {
(succeeded: Bool, error: NSError?) -> Void in
if let error = error {
let errorString = error.userInfo?["error"] as? NSString
// Show the errorString somewhere and let the user try again.
} else {
// Hooray! Let them use the app now.
}
}
You essentially could use the same view you already have since your fields are identical but call different methods depending on the button they select.