Mobiconf 2018: Bartosz Polaczyk, Grand Parade
summary
Actor model applied to Swift: a small generic wrapper (about 50 lines of code) sits on a serial GCD queue and delivers strongly typed enum messages to enum-state actors, turning async flows into a serial “island.” Uses a driver/actor split, fire‑and‑forget messages with no return, and unit tests that assert output comments synchronously. Practical example implements a table‑view list loader with network actor and UI comments; solves callbacks by sending UUID identifiers, moves timers to an external timer actor, and reduces type erasure to one-line type erasure — used successfully in production code.
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chapters (7)
- 0:00Introduction to actors
- 8:11Actors in mobile development
- 18:52Actor implementation in Swift
- 28:18Testing actors for concurrency
- 30:50Challenges with actors
- 34:16Future of actors in Swift
- 37:14Summary and conclusion
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