Wrapping an iOS 10+ class

ImpactFeedbackGenerator.swift

class ImpactFeedbackGenerator {
    fileprivate init() {
    }
    
    static func create() -> ImpactFeedbackGenerator {
        if #available(iOS 10.0, *) {
            return ConcreteImpactFeedbackGenerator()
        } else {
            return ImpactFeedbackGenerator()
        }
    }
    
    func impactOccurred() {}
}

@available(iOS 10.0, *)
class ConcreteImpactFeedbackGenerator: ImpactFeedbackGenerator {
    fileprivate let feedbackGenerator = UIImpactFeedbackGenerator(style: .medium)
    override func impactOccurred() {
        feedbackGenerator.impactOccurred()
    }
}

example usage:

let feedback = ImpactFeedbackGenerator.create()
feedback.impactOccured()