iOS,macOS: Make core logging accessible to Swift code

Today, we use FML for core functionality such as logging and assertions in the iOS and macOS embedders. FML_LOG, FML_DLOG are implemented using C++ macros and thus currently unavailable to Swift.

Logging is platform-specific and a hook exposed via log_message_callback in the embedder API, and via Settings::log_message_callback in engine internals. We should implement a Swift-compatible logger, and use that in place of the current C++ macros.

Issue is assigned to multiple teams (ios, macos). Please ensure the issue has only one team-* label at a time. Use fyi-* labels to have another team look at the issue without reassigning it.

iOS,macOS: Add Logger/FlutterLogger

macOS: port ResizeSynchronizer to Swift

macOS: port ResizeSynchronizer to Swift (#168959)

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iOS,macOS: Make core logging accessible to Swift code #168564

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iOS,macOS: Make core logging accessible to Swift code #168564

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flutter-triage-bot commented on May 8, 2025

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github-actions commented on May 29, 2025

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