I'm trying to check for an existing login using session but I was thrown this error
'AnyObject?' is not convertible to 'NSString'; did you mean to use 'as!' to force downcast?
at this line of code
self.usernameLabel.text = prefs.valueForKey("USERNAME") as NSString
The full code block is this
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var usernameLabel: UILabel!
//Check for existing login, else show login
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(true)
let prefs: NSUserDefaults = NSUserDefaults.standardUserDefaults()
let isLoggedIn:Int = prefs.integerForKey("ISLOGGEDIN") as Int
if (isLoggedIn != 1) {
self.performSegueWithIdentifier("goToLogin", sender: self)
} else {
self.usernameLabel.text = prefs.valueForKey("USERNAME") as NSString
}
}
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
What is the best way to fix it?
try this ...
if let username = prefs.valueForKey("USERNAME") as? String{
self.usernameLabel.text = username
}
or if you want to use NSString .. (Just an option)
if let username = prefs.valueForKey("USERNAME") as? NSString{
self.usernameLabel.text = username
}
change NSString to String,
self.usernameLabel.text = prefs.valueForKey("USERNAME") as? String
its working fine, hope its helpful
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