Lean Async Code with Kotlin's Coroutines
summary
Explains how to replace callback hell and much RxJava boilerplate with Kotlin coroutines, using kotlinx.coroutines primitives: launch, async/Deferred, runBlocking, and select/await to run parallel geocoding requests, take the first result, or wait for all jobs. Shows using Retrofit for network calls, converting lat/long to addresses in parallel, a lifecycle-bound Job canceller, and a conflated BroadcastChannel pattern turned into a simple DataStore/DataStream abstraction for UI updates. Claims clearer, sequential-looking code and easy custom abstractions.
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chapters (7)
- 0:00Introduction to async code
- 2:29What are coroutines
- 6:04Coroutines in practice
- 10:01Parallel task execution
- 12:33Observing changes with channels
- 16:45Why use coroutines
- 19:34Q&A and summary
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