user Data are not showing in label - ios

Question

I am trying to display the user data in screen. But I always get an empty value. I don't know why.
var profileData = Profile(usrObj: [String:String]())
#IBOutlet weak var userName: UILabel!
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(true)
self.userName.text = profileData.FirstName
print(profileData.FirstName)
}
My print statement and my label value are empty. Please help me out with any mistake I am making.
My model class :
class Profile {
var FirstName: String
init(usrObj : [String: AnyObject]) {
self.FirstName = (usrObj["FirstName"] ?? "") as! String
}
var ProfileObject: [String:AnyObject] {
return ["FirstName" : self.FirstName]
}

Answer 1

In your LoginViewController save your data in NSUserDefaults
#IBAction func loginWithUserNamePassword(){
KRProgressHUD.show(progressHUDStyle: .White, message: "Loading...")
loginWithMailAndPassword((username.text?.trimWhiteSpace)!, password: (password.text?.trimWhiteSpace)!) { (user, error) in
if error != nil{
KRProgressHUD.dismiss()
SCLAlertView().showError("Login Error", subTitle: error!.localizedDescription)
}
else {
if user!.emailVerified
{
currentUser = user
fireBaseRef.child("Users").child(currentUser!.uid).child("UserProfile").observeSingleEventOfType(.Value, withBlock: { (snapshot) in
if let data: [String : AnyObject] = snapshot.value as? [String : AnyObject] {
let userDefaults = NSUserDefaults.standardUserDefaults()
userDefaults.setObject(data, forKey: "userdata")
userDefaults.synchronize()
enableSync()
self.navigateToNextScreen()
}
else{
}
})
}
else
{
SCLAlertView().showError("Login Error", subTitle: "This email is has not been verified yet")
}
}
}
}
and use that data in UserStaticDataViewController
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(true)
self.profileDetailsExists = true
let userdata : NSDictionary = NSUserDefaults.standardUserDefaults().valueForKey("userdata") as! NSDictionary
print(userdata["City"] as? String)
self.userName.text = userdata["FirstName"] as? String
self.userCity!.text = userdata["City"] as? String
self.userCountry!.text = userdata.valueForKey("Country") as? String
self.userState.text = userdata.valueForKey("State") as? String
self.userMobileNo.text = userdata.valueForKey("Mobile") as? String
self.userGmail.text = userdata.valueForKey("Email") as? String
self.userDob.text = userdata.valueForKey("DateOfBirth") as? String
}
Output:
Just approve my answer and give vote.
Happy coding.

Answer 2

From the fact that your print statement is empty, it means that the userObject you pass into the following equation
var profileData = Profile(usrObj: [String:String]())
probably does not have a string value for the key "firstName".
You can try to verify this by changing your code
self.FirstName = (usrObj["FirstName"] ?? "") as! String
to
self.FirstName = (usrObj["FirstName"] ?? "Hello world") as! String
and see if "Hello world" is printed out in your console.
If yes, then you just have to make sure that the "user" object you pass into the init function of Profile class should be a dictionary where a value is stored for the key "FirstName"