   case showNever
 }
 
-private class CustomInputView: UIInputView {
+private class CustomInputView: UIInputView, UIInputViewAudioFeedback {
   var setFrame: CGRect = CGRect.zero
   var keymanWeb: KeymanWebViewController!
 


  required init?(coder: NSCoder) {
    super.init(coder: coder)
  }

  override var intrinsicContentSize: CGSize {

    }

    if isInputClickSoundEnabled {
      UIDevice.current.playInputClick()

      // Disable input click sound for 0.1 second to ensure it plays for single key stroke.
      isInputClickSoundEnabled = false
