Flowing Things, not so strange in the MVI world
summary
Shows a concrete migration path from an Rx MVI implementation to Kotlin Coroutines Flow, converting Retrofit Single/Observable calls to suspend functions for single results and Flow builders for streams, implementing a custom merge/publish using channelFlow, and replacing BehaviorSubject with conflatedBroadcastChannel for state. Demonstrates flatMap/flatMapMerge equivalents, collect as subscribe, context preservation and exception transparency, lifecycle scoping via ViewModelScope and structured concurrency, and a runnable demo app wired through repository → reducer → render that actually works end to end.
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chapters (10)
- 0:00Introduction to talk
- 1:39Coroutines and Flow basics
- 9:33Channels versus Flows
- 13:18Model View Intent pattern
- 15:47Converting actions to results
- 24:19Reducing results to state
- 27:29Plugging pieces together
- 29:16Migration to Flow summary
- 30:18Why use Flow?
- 32:28Q&A and acknowledgments
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