Hide switching of storyboards

Question

In my application I have 2 storyboards: Onboarding and Main. When user opens app for a first time - Onboarding storyboard is presented. After that, he presses a button and I show him Main Storyboard with such code:

let storyboard = UIStoryboard(name: "Shop", bundle: nil)
let navigationVc = storyboard.instantiateViewController(withIdentifier: "ShopScreens") as UIViewController
navigationVc.modalPresentationStyle = UIModalPresentationStyle.overCurrentContext
self.present(navigationVc, animated: false, completion: nil)

I wanted to make custom animation, when user switches storyboards. To do so - I've created simple view that I'm presenting on top of everything like this:

UIApplication.shared.keyWindow?.addSubview(self.containerViewForAnimatedView)

And this view is working fine, but only in terms of one Storyboard, it covers everything while app changes screens.

But when I try to switch storyboards - this view gets covered by newly presented storyboard.

I also tried presenting view in such way and brining it to front:

let appDelegate = UIApplication.shared.delegate as! AppDelegate
appDelegate.window?.addSubview(self.containerViewForAnimatedView)

But that din't work as well.

How can I hide switching of storyboards by presenting custom created view during that transition? Would be grateful for any help.

So you have storyboard 1, want to present a view on top of that and then replace storyboard 1 beneath that view with storyboard 2? — Vollan, Feb 03 '20 at 18:31

score 1 · Accepted Answer · answered Feb 03 '20 at 19:47

Just played around some with it, no animations or anything special but this will give you the flow that you want:

class ViewController: UIViewController {
    let viiew = UIView.init(frame: UIScreen.main.bounds)

    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .red

        DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
            self.viiew.backgroundColor = .blue
            UIApplication.shared.keyWindowInConnectedScenes?.resignKey()
            UIApplication.shared.keyWindowInConnectedScenes?.addSubview(self.viiew)
            self.viiew.layer.zPosition = 1000
        }

        DispatchQueue.main.asyncAfter(deadline: .now() + 4) {
            let vc = ViewController2()
            UIApplication.shared.keyWindowInConnectedScenes?.rootViewController = vc
            DispatchQueue.main.asyncAfter(deadline: .now() + 4) {
                self.viiew.removeFromSuperview()
            }
        }
    }


}

class ViewController2: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .green


    }
}

extension UIApplication {

    var keyWindowInConnectedScenes: UIWindow? {
        return windows.first(where: { $0.isKeyWindow })
    }

}

I have missed - `self.viiew.layer.zPosition = 1000`, after adding it to my view it did the trick! Many thanks for you help! — Taras Tomchuk, Feb 03 '20 at 21:04

Hide switching of storyboards

1 Answers1