In iOS 11, from Control Center a user can now initiate a broadcast of their entire iOS screen to their choice of a supported broadcast app.
In this scenario, is it possible for a broadcast app to provide Setup UI (for example for account sign-in or naming of broadcast title)? The information I have found so far hints at the answer being "no" (which would be unlike in-app broadcast) but I have not found anything definitive.
If not possible, is there any way that the Upload Extension could retrieve information from the main broadcast app (that the user had previously setup)?