Implement shared real-time experiences and media synchronization in Apple platform apps using GroupActivities and SharePlay.
This skill provides comprehensive guidance for developers building collaborative iOS, macOS, tvOS, and visionOS applications using the GroupActivities framework. It simplifies the implementation of SharePlay, enabling real-time features like synchronized media playback via AVPlaybackCoordinator, high-frequency state updates with GroupSessionMessenger, and large file transfers using GroupSessionJournal. Designed for Swift 6.3 and iOS 26+, it helps developers manage complex session lifecycles, handle late-joining participants, and avoid common pitfalls like session leaks or missing synchronization triggers.
Key Features
01409 GitHub stars
02FaceTime and iMessage group activity integration
03Large file transfers using GroupSessionJournal
04Real-time state synchronization via GroupSessionMessenger
05Session lifecycle management and participant tracking
06Synchronized media playback using AVPlaybackCoordinator
Use Cases
01Creating collaborative whiteboard or document editing experiences
02Developing synchronized fitness or gaming apps for FaceTime calls
03Building a 'Watch Together' feature for streaming video applications