I've watched the 2017 WWDC session on Rich PUSH and saw examples of the Long Look custom UI for iOS11.
I cannot find any documentation on how to do this, or a sample app. I assume it is done via Notification Content Extension, but there has to be more to it.
What about guidelines or rules about what you can and cannot do in the content extension?
The iOS10 docs say a content extension cannot have any user interaction - but the WWDC video shows an iOS11 example of a Long Look which has a definite PLAY button for an audio player. Does iOS11 rich notifications now include uiser interaction, and if so, are there limitations? These are just some of the questions I have which could probably be answered easily if I could find the documentation, or even better, a sample app showing an implementaiton of the Rich PUSH long look. Thanks.