Live Sharing Rework

[arlo]

I've been reworking the Live Sharing functionality to improve two basic tasks:

1. Seeing and selecting a lead device from a following device.
2. Making and maintaining a network connection to a lead device.

The new iOS version 2025-01-24 released today has new Live Sharing code that you can activate from Settings > Advanced > Use New Peer Networking (near the bottom of the list). If you use Live Sharing and have experienced either of those issues, can you try the new code and see if it handles either of those tasks better for you?

I don't recommend using this in a performance unless you can test it carefully in a rehearsal first. After testing, you can easily switch back to the default code by turning off Use New Peer Networking again. You will need to have it either on or off on all your connected devices; the two versions are not compatible with each other.

Settings > Advanced also has a Use Old Peer Networking setting, but that's very old and you can ignore it. So the available settings are:

    Use Old Peer Networking on: very old code, not recommended
    Use New Peer Networking on: new code still in testing
    Neither on: current production code

Implementing these changes on Android has been more difficult, so that's not ready yet. At this point, you will only be able to use the new code if all your Live Sharing devices are iOS or macOS.