Swift Package Manager support for macOS

[elek453]

Hi,

Flutter is warning that this plugin does not support Swift Package Manager (SPM) for macOS:

• screen_retriever_macos

This will become an error in a future Flutter release.

Could you please add Swift Package Manager support for macOS? This would ensure compatibility with upcoming Flutter versions and modern macOS dependency management.

Thanks!

[m13v]

the NSScreen and CGDisplay APIs this wraps are stable, so the SPM migration should be mostly build system work. the main pitfall is getting the Package.swift linking right for CoreGraphics and ApplicationServices frameworks. also worth testing on both Intel and Apple Silicon since there are subtle differences in how display scaling is reported through CGDisplayBounds vs NSScreen.frame on different architectures. if you're touching this code anyway, might be worth confirming that the current implementation handles dynamic display changes (plugging in external monitors) correctly with the new SPM target.

[m13v]

our screen capture service that works with the same CGDisplay and NSScreen APIs, handles multi-display setups and dynamic display changes: https://github.com/m13v/macos-session-replay/blob/main/Sources/SessionReplay/ScreenCaptureService.swift