Thank you so much eskimo.
Thanks to your answers, I will be able to do what I want to do!
ShingoHattori
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Thanks for your reply eskimo.
My target platform is iOS. And I am using network extension (packet tunnel provider).
I would like to know how startTunnel() and stopTunnel(), which exist in the NEPacketTunnelProvider, use NotificationCenter to send messages to the ViewController.
Kind regards
Thank you for your kind reply.
When I made the changes as you suggested, I was able to use DispatchNotificationCenter.
I had overlooked the Availability in the documentation.
Thanks,