Using System Haptics and Sounds in Swift

////  Feedback.swift//  keyboard////  Created by Sunghyun Cho on 2023-01-21.//import AVFoundationimport UIKit
class Feedback {  static let shared = Feedback()  var haptics: Bool? = true  var sounds: Bool? = true  let generator = UIImpactFeedbackGenerator(style: .light)
  private init() {}
  func playHaptics() {    if !(haptics ?? false) { return }    generator.impactOccurred()  }
  func playTypeSound() {    if !(sounds ?? false) { return }    let systemSoundID: SystemSoundID = 1104    AudioServicesPlaySystemSound(systemSoundID)  }
  func playDeleteSound() {    if !(sounds ?? false) { return }    let systemSoundID: SystemSoundID = 1155    AudioServicesPlaySystemSound(systemSoundID)  }  func playModifierSound() {    if !(sounds ?? false) { return }    let systemSoundID: SystemSoundID = 1156    AudioServicesPlaySystemSound(systemSoundID)  }}