★ UINotificationFeedbackGenerator
let generator = UINotificationFeedbackGenerator()
generator.prepare()
generator.notificationOccurred(.error)
public enum UINotificationFeedbackType : Int {
case success
case warning
case error
}
★ UIImpactFeedbackGenerator
let generator = UIImpactFeedbackGenerator(style: .light)
generator.prepare()
generator.impactOccurred()
public enum UIImpactFeedbackStyle : Int {
case light
case medium
case heavy
}
★ UISelectionFeedbackGenerator
let generator = UISelectionFeedbackGenerator()
generator.prepare()
generator.selectionChanged()