Hello @Salmancs43, sadly, nothing can be done at the moment. But there's hope, next version will ship with proper support of window levels.

I've always believed that UIAlertController views were presented in their own window. Turns out I was mistaken. You're going to need to present the UIAlertController in its own window, which will sit above Instructions' window. By default, Instructions uses a window with the following level: UIWindowLevelNormal + 1 (it's customizable, but not yet in the README). The custom window will need to have an higher value than that.

Here's a possible way to achieve what, from the top of my head (untested).

let window = UIWindow(frame: UIScreen.main.bounds)
let dummyViewController = UIViewController()

dummyViewController.view.backgroundColor = UIColor.clear
window.rootViewController = dummyViewController
window.windowLevel = UIWindowLevelNormal + 2

// Instructions doesn't use a key window, but the alert probably should.
window.makeKeyAndVisible()

dummyViewController.present(alertViewController, animated: true, completion: nil)

After the alert is dismissed, we'll probably need to make sure that the key window is again the main window, and not the one used by Instructions. It's most likely done automatically, but I haven't checked.

    let alertWindow = UIWindow(frame: UIScreen.main.bounds)
        alertWindow.rootViewController = UIViewController()
        alertWindow.windowLevel = UIWindowLevelAlert + 1;
        alertWindow.makeKeyAndVisible()
        
        let alert = UIAlertController(title:"Please Select an Option", message:nil , preferredStyle: .actionSheet)
        
        alert.addAction(UIAlertAction(title: "Camera", style: .default , handler:{ (UIAlertAction)in
            print("User click Camera button")
            
            self.openCamera()
        }))
        
        alert.addAction(UIAlertAction(title: "Photo Library", style: .default , handler:{ (UIAlertAction)in
            print("User click Photo button")
            self.openGallary()
            
        }))
        alert.addAction(UIAlertAction(title: "Dismiss", style: UIAlertActionStyle.cancel, handler:{ (UIAlertAction)in
            print("User click Dismiss button")
            
            
        }))
        alertWindow.rootViewController?.present(alert, animated: true, completion: {
            print("completion block")
        })

It Can be achieved using this code.

Problem solved!

I've always believed that UIAlertController views were presented in their own window. Turns out I was mistaken. You're going to need to present the UIAlertController in its own window, which will sit above Instructions' window. By default, Instructions uses a window with the following level: UIWindowLevelNormal + 1 (it's customizable, but not yet in the README). The custom window will need to have an higher value than that.

Here's a possible way to achieve what, from the top of my head (untested).

let window = UIWindow(frame: UIScreen.main.bounds)
let dummyViewController = UIViewController()

dummyViewController.view.backgroundColor = UIColor.clear
window.rootViewController = dummyViewController
window.windowLevel = UIWindowLevelNormal + 2

// Instructions doesn't use a key window, but the alert probably should.
window.makeKeyAndVisible()

dummyViewController.present(alertViewController, animated: true, completion: nil)

After the alert is dismissed, we'll probably need to make sure that the key window is again the main window, and not the one used by Instructions. It's most likely done automatically, but I haven't checked.

perfect!