Im trying to create a slide ViewController like snapchats - ios

Question

I copied this code for the sliding view controller from a YouTube snapchat like menu video but it won't compile.
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var scrollView: UIScrollView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
var V1 : View1 = View1(nibName: "View1" , bundle: nil)
self.addChildViewController(V1)
self.scrollView.addSubview(V1.view)
V1.didMoveToParentViewController(self)
}
I keep getting the error use of undeclared type 'View1'. How do I fix this? I followed a tutorial and the code is identical. How do I declare View1 as a type?

Answer 1

I've made the same tutorial but for three Views:
#IBOutlet weak var scrollView: UIScrollView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let view1: View1 = View1(nibName: "View1", bundle: nil)
addChildViewController(view1)
scrollView.addSubview(view1.view)
view1.didMoveToParentViewController(self)
let view2: View2 = View2(nibName: "View2", bundle: nil)
addChildViewController(view2)
scrollView.addSubview(view2.view)
view2.didMoveToParentViewController(self)
var view2Frame: CGRect = view2.view.frame
view2Frame.origin.x = view.frame.width
view2.view.frame = view2Frame
let view3: View3 = View3(nibName: "View3", bundle: nil)
addChildViewController(view3)
scrollView.addSubview(view3.view)
view3.didMoveToParentViewController(self)
var view3Frame: CGRect = view3.view.frame
view3Frame.origin.x = view.frame.width * 2
view3.view.frame = view3Frame
self.scrollView.contentSize.width = view.frame.width * 3
}
And this works just fine. Hope it helps.