Swift, ReactiveCocoa…Better Together
summary
Shows how ReactiveCocoa and Swift combine to build a working Twitter sentiment search: UI text -> throttled searches against Twitter API, parallel sentiment API calls, and a visible-cell half‑second delay so cells only fetch sentiment after being seen. Demonstrates wrapping async APIs into signals, using throttle and flattenMap, marshalling back to the UI thread, and reducing mutable state (51 vars in the demo, 39 as constants). Mentions ReactiveCocoa 3’s generics and custom operators; the app works and avoids hammering rate‑limited APIs.
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chapters (8)
- 0:00Introduction and background
- 3:10What is ReactiveCocoa
- 13:00Swift and ReactiveCocoa
- 16:54Building a Twitter app demo
- 29:38Curried functions in Swift
- 32:55ReactiveCocoa and Swift synergy
- 34:38ReactiveCocoa 3 updates
- 41:18Summary and Q&A
