Lets a native-call user share their iPhone screen (whole device, works
backgrounded). LiveKit 2.15.3 ships the broadcast stack (BroadcastManager +
LKSampleHandler + IPC), so:
- New Broadcast Upload Extension target "BroadcastExtension"
(com.bizgaze.connect.broadcast): SampleHandler.swift subclasses
LKSampleHandler; injected by mobile/scripts/add-broadcast-extension.rb
which also LINKS the LiveKit SPM product into the extension + sets the
App Group. Sources in mobile/ios-broadcast/.
- Plugin: Room created with ScreenShareCaptureOptions(useBroadcastExtension:
true); startScreenShare -> BroadcastManager.requestActivation() (system
picker); stopScreenShare -> requestStop(); BroadcastManagerDelegate ->
fires screenShareState to the web. LiveKit auto-publishes the track.
- ios-patch.sh: RTCScreenSharingExtension + RTCAppGroupIdentifier keys.
- codemagic.yaml: run the injector + sign the 3rd bundle id (.broadcast).
- home.html: toggleScreen native -> start/stop; screenShareState listener
reflects state + broadcasts meeting-screen so peers' stage shows it.
REQUIRES a one-time manual Apple portal step: enable the App Group on the
com.bizgaze.connect.broadcast App ID (see mobile/IOS_SETUP.md) or the
archive fails code-signing. SPM-linked extension is new on our CI — expect
build iteration. Web deployed (no-ops on builds without startScreenShare).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
