'shared' is unavailable: Use view controller based solutions where appropriate instead.

[reza-khalafi]

Hello
I am using this component easily but i added OneSignal component to my Xcode project and get this error:

'shared' is unavailable: Use view controller based solutions where appropriate instead.

in BoomMenuButton.swift in line 1504.

in this method:

    private func parentView() -> UIView? {
        if isBoomInWholeScreen {
            if let delegate = UIApplication.shared.delegate {
                if let window = delegate.window {
                    return window!
                } else {
                    return nil
                }
            } else {
                return nil
            }
        } else {
            return superview
        }
    }