Why is the button not working - ios

Question

The "go button" is not working as it should. When clicked it should hide the subviews. Here's the ViewController. I tried placing the final function in various places.
class timeViewController: UIViewController {
var score = 0
var buttonState: Int = 0;
var gameOver = UIView()
#IBAction func start(sender: AnyObject) {
if(displayTime.text != stoptimer.text){
var gameOver = UIView(frame: CGRectMake(0, 0, 0, 0))
gameOver.backgroundColor = UIColor.blackColor().colorWithAlphaComponent(0.2)
//gameOver.opaque = false
self.view.addSubview(gameOver)
UIView.animateWithDuration(0, animations:{
gameOver.frame.size = CGSizeMake(667, 667)
})
let gobutton = UIButton()
let image = "button.png"
gobutton.setImage(UIImage(named: image), forState: .Normal)
gobutton.frame = CGRectMake(135, 300, 95, 95)
gobutton.addTarget(self, action: "pressed:" , forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(gobutton)
func pressed(sender: UIButton!){
gameOver.removeFromSuperview()
}
}
}

Answer 1

For removing your "GaneOver" view change to this code:
gameOver.removeFromSuperview()
And I hope you are writing "func pressed" outside of viewDidLoad or viewWillAppear

Answer 2

You will have to make gameOver a global variable by declaring it outside function and then do what you did like this:
class myClass {
var gameOver = UIView()
func myFunction() {/*edit everything including gameOverView's properties*/}
func pressed(sender: UIButton!) {
gameOver.removeFromSuperview()
}
}
Also make sure to write functions outside other functions like viewDidLoad but inside your class as it looks like you created that function inside another one. However you can call a function from within another one using something like myFunction() as separate line as is.
Hope that helps :)

Answer 3

You're re-declaring gameOver inside the if statement. Just remove var. Check this code out:
class ViewController: UIViewController {
var gameOver: UIView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func start(sender: AnyObject) {
if(displayTime.text != stoptimer.text){
gameOver = UIView(frame: CGRectMake(0, 0, 0, 0))
gameOver.backgroundColor = UIColor.blackColor().colorWithAlphaComponent(0.2)
//gameOver.opaque = false
self.view.addSubview(gameOver)
UIView.animateWithDuration(0, animations:{
self.gameOver.frame.size = CGSizeMake(667, 667)
})
let gobutton = UIButton()
let image = "button.png"
gobutton.setImage(UIImage(named: image), forState: .Normal)
gobutton.frame = CGRectMake(135, 300, 95, 95)
gobutton.addTarget(self, action: "pressed:" , forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(gobutton)
}
}
func pressed(sender: UIButton!){
self.gameOver.removeFromSuperview()
}
}