When is didRegisterForRemoteNotificationsWithDeviceToken called?

Question

There are a lot of questions about didRegisterForRemoteNotificationsWithDeviceToken but they all sidestep a very direct question which I cannot seem to find an exact answer

Answer 1

When the app is first run it will ask the user whether they will allow remote notifications. If they say yes then it will fire didRegisterForRemoteNotificationsWithDeviceToken at that time and every time after it will fire this function when the app is first opened. If they say no then it will not be fired unless they went into settings and allowed notifications on the app.