Saving username and password using UISwitch in Swift - swift

Question

Ive searched a lot of threads and this is my last resort because Ive seen this question asked different ways but not exactly for swift and for Username and password saving. I want my UISwitch when turned on to save my username and password info. I've been trying all day to get this UISwitch to save my username and password using NSUserDefaults. Please help me I'm at my whits end with trying it, I've searched almost every forum to find the answer but not many people show you exactly how to implement it. Below is my code. I know its bleak, as I am a beginner, but I have my "Login Button" saving my username and password, but i don't know how to get it to only save that information when I click the UISwitch and how to save it in the "view did load method". thanks for the help in advance!! I don't know what code to include into my UISwitch Method.
Here is the first part of my login button and then my view did load method. I don't have any code for the UISwitchMethod
override func viewDidLoad() {
super.viewDidLoad()
//Save username and password info if Save UISwitch is selected
switchState.on = NSUserDefaults.standardUserDefaults().boolForKey("switchState")
NSUserDefaults.standardUserDefaults().boolForKey("keepUsername")
NSUserDefaults.standardUserDefaults().boolForKey("keepPassword")
}
#IBAction func LoginButton(sender: AnyObject) {
var username = self.usernameTextField.text
var password = self.passwordTextField.text
var user = PFUser.currentUser()
NSUserDefaults.standardUserDefaults().setObject(username, forKey: "keepUsername")
NSUserDefaults.standardUserDefaults().setObject(password, forKey: "keepPassword")
if count(username) < 4 || count(password) < 5 {
var alert: UIAlertView = UIAlertView(title: "Sorry!", message: "Username Must be greater than 4 characters and the password greater that 5 characters", delegate: self, cancelButtonTitle: "Ok")
alert.show()
}else {
self.actInd.startAnimating()
PFUser.logInWithUsernameInBackground(username, password: password, block: { (user, NSError) -> Void in
self.actInd.stopAnimating()
if ((user) != nil) {
println("Success \(user) logged in")
self.performSegueWithIdentifier("toHomeFromLogin", sender: self)
}else {
var alert: UIAlertView = UIAlertView(title: "error", message: "Please Sign up :)", delegate: self, cancelButtonTitle: "Ok")
alert.show()
}
#IBAction func switchStateChanged(sender: UISwitch) {
NSUserDefaults.standardUserDefaults().setBool(switchState.on, forKey: "switchState")
}

Answer 1

I will add some notes and edits I would do and I hope it can help you:
var switchState = Bool()
var userName = String()
var password = String()
override func viewDidLoad() {
super.viewDidLoad()
//Load all values
switchState = NSUserDefaults.standardUserDefaults().boolForKey("switchState")
userName = NSUserDefaults.standardUserDefaults().stringForKey("keepUsername")
password = NSUserDefaults.standardUserDefaults().stringForKey("keepPassword")
//Display values somewhere
}
#IBAction func LoginButton(sender: AnyObject) {
var enteredUser = self.usernameTextField.text
var enteredPassword = self.passwordTextField.text
var user = PFUser.currentUser()
NSUserDefaults.standardUserDefaults().setObject(enteredUser, forKey: "keepUsername")
NSUserDefaults.standardUserDefaults().setObject(enteredPassword, forKey: "keepPassword")
NSUserDefaults.standardUserDefaults().synchronize()
if count(username) < 4 || count(password) < 5 {
var alert: UIAlertView = UIAlertView(title: "Sorry!", message: "Username Must be greater than 4 characters and the password greater that 5 characters", delegate: self, cancelButtonTitle: "Ok")
alert.show()
}else {
self.actInd.startAnimating()
PFUser.logInWithUsernameInBackground(username, password: password, block: { (user, NSError) -> Void in
self.actInd.stopAnimating(
if ((user) != nil) {
println("Success \(user) logged in")
self.performSegueWithIdentifier("toHomeFromLogin", sender: self)
}else {
var alert: UIAlertView = UIAlertView(title: "error", message: "Please Sign up :)", delegate: self, cancelButtonTitle: "Ok")
alert.show()
}
#IBAction func switchStateChanged(sender: UISwitch) {
//var readValueFromSwitch = something bolean
//NSUserDefaults.standardUserDefaults().setBool(readValueFromSwitch, forKey: "switchState")
//NSUserDefaults.standardUserDefaults().synchronize()
}

Answer 2

I send you the hole page so you can get and idea and also there is a way you can send alert messages for the Register page, look the //store data
import UIKit
class RegisterPageViewController: UIViewController {
#IBOutlet weak var userEmailTextField: UITextField!
#IBOutlet weak var userPasswordTextField: UITextField!
#IBOutlet weak var repeatPasswordTextField: UITextField!
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.
}
#IBAction func registerButtonTapped(sender: AnyObject) {
let userEmail = userEmailTextField.text;
let userPassword = userPasswordTextField.text;
let userRepeatPassword = repeatPasswordTextField.text;
// Check for empty fields
if (userEmail.isEmpty || userPassword.isEmpty || userRepeatPassword.isEmpty)
{
// Display alert message
displayMyAlertMessage("All fields are required");
return;
}
// Check if passwords match
if(userPassword != userRepeatPassword)
{
//Display an alert message
displayMyAlertMessage("Passwords do not match");
return;
}
// Store data
NSUserDefaults.standardUserDefaults().setObject(userEmail, forKey: "userEmail");
NSUserDefaults.standardUserDefaults().setObject(userPassword, forKey: "userPassword");
NSUserDefaults.standardUserDefaults().synchronize();
// Display alert message with confirmation.
var myAlert = UIAlertController(title: "Alert", message: "Registration successful, Thank you!", preferredStyle: UIAlertControllerStyle.Alert);
let okAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default){action in
self.dismissViewControllerAnimated(true, completion: nil);
}
myAlert.addAction(okAction);
self.presentViewController(myAlert, animated:true, completion:nil);
}
func displayMyAlertMessage(userMessage:String)
{
var myAlert = UIAlertController(title: "Alert", message: userMessage, preferredStyle: UIAlertControllerStyle.Alert);
let okAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: nil);
myAlert.addAction(okAction);
self.presentViewController(myAlert , animated: true, completion: nil)
}
}