Good Intentions II: Enemy of the State
summary
Claim: revive state machines to strip responsibilities out of ViewControllers and make app behavior explicit. Uses Apple’s WWDC-style state machine: states as string-based states, transitions as a dictionary, and delegate hooks that map to didEnter/didExit selectors. Concrete results: an async data source modeled with five-state data source logic, a branching appointment flow spanning about a dozen-screen wizard, and session management via a state machine; adding a reschedule path takes minutes not days. The implementations reduce ambiguity and work in production.
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chapters (12)
- 0:00Introduction
- 1:30Intention
- 4:25State
- 6:24State Machines
- 8:11Apple State Machine
- 14:02Implementing Logic
- 15:40Data Source
- 19:03Navigation
- 26:25State Machine
- 27:58Changing Requirements
- 30:03Session Management
- 35:44Conclusion
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