How to integrate FlutterPlatformView and INUIAddVoiceShortcutButtonDelegate? - swift

Question

I create a flutter app and need to add Siri button in my flutter app now, so I have to use FlutterPlatformView to host native iOS view.
Unfortunately, I am not familiar with native iOS code....so I still can't figure out what is problem right now.
I have already successfully run the FlutterPlatformView without "INUIAddVoiceShortcutButtonDelegate", but when I add the extension of INUIAddVoiceShortcutButtonDelegate, I got error in "present function"(like the image below).
Thanks a lot if anyone can give me a hint!
import UIKit
import IntentsUI
import Flutter
class AddSiriView:NSObject,FlutterPlatformView{
let frame: CGRect
let viewId:Int64
private var _view: UIView
init(_ frame:CGRect,viewId:Int64,args:Any?){
self.frame = frame
self.viewId = viewId
_view = UIView()
super.init()
addSiriButton(to: _view)
// iOS views can be added here
}
public func view() -> UIView {
return _view
}
func addSiriButton(to view: UIView) {
let button = INUIAddVoiceShortcutButton(style: .whiteOutline)
button.shortcut = INShortcut(intent: intent )
button.delegate = self
button.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(button)
view.centerXAnchor.constraint(equalTo: button.centerXAnchor).isActive = true
view.centerYAnchor.constraint(equalTo: button.centerYAnchor).isActive = true
}
}
extension AddSiriView: INUIAddVoiceShortcutButtonDelegate {
func present(_ addVoiceShortcutViewController: INUIAddVoiceShortcutViewController, for addVoiceShortcutButton: INUIAddVoiceShortcutButton) {
addVoiceShortcutViewController.delegate = self
addVoiceShortcutViewController.modalPresentationStyle = .formSheet
==============I always get error here===============================
present(addVoiceShortcutViewController, animated: true, completion: nil)
}
func present(_ editVoiceShortcutViewController: INUIEditVoiceShortcutViewController, for addVoiceShortcutButton: INUIAddVoiceShortcutButton) {
editVoiceShortcutViewController.delegate = self
editVoiceShortcutViewController.modalPresentationStyle = .formSheet
==============I always get error here===============================
present(editVoiceShortcutViewController, animated: true, completion: nil)
}
}
extension AddSiriView: INUIAddVoiceShortcutViewControllerDelegate {
func addVoiceShortcutViewController(_ controller: INUIAddVoiceShortcutViewController, didFinishWith voiceShortcut: INVoiceShortcut?, error: Error?) {
controller.dismiss(animated: true, completion: nil)
}
func addVoiceShortcutViewControllerDidCancel(_ controller: INUIAddVoiceShortcutViewController) {
controller.dismiss(animated: true, completion: nil)
}
}
extension AddSiriView: INUIEditVoiceShortcutViewControllerDelegate {
func editVoiceShortcutViewController(_ controller: INUIEditVoiceShortcutViewController, didUpdate voiceShortcut: INVoiceShortcut?, error: Error?) {
controller.dismiss(animated: true, completion: nil)
}
func editVoiceShortcutViewController(_ controller: INUIEditVoiceShortcutViewController, didDeleteVoiceShortcutWithIdentifier deletedVoiceShortcutIdentifier: UUID) {
controller.dismiss(animated: true, completion: nil)
}
func editVoiceShortcutViewControllerDidCancel(_ controller: INUIEditVoiceShortcutViewController) {
controller.dismiss(animated: true, completion: nil)
}
}
extension AddSiriView {
public var intent: ConductIntent {
let testIntent = ConductIntent()
testIntent.action = "my test intent"
return testIntent
}
}
public class AddSiriViewFactory : NSObject,FlutterPlatformViewFactory{
public func create(
withFrame frame:CGRect,
viewIdentifier viewId:Int64,
arguments args: Any?
) -> FlutterPlatformView{
return AddSiriView(frame,viewId: viewId,args: args)
}
}