RxJava by example – Volume 3 (the multicast edition)
summary
Demos show concrete mechanics: a timer proves regular Observables recreate work per subscribe, then publish + refCount and publish + autoConnect are compared; refCount stops and restarts the source, autoConnect keeps running and requires manual disposal. A replay example shows new subscribers get the last value but that value is lost if everyone unsubscribes unless using replayingShare. Android examples include a two‑button timer, a Retrofit network request held in a ViewModel, pagination refactor and a working avoid‑doOnNext pattern.
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chapters (12)
- 0:00Introduction
- 1:10Multicasting
- 3:20Multicasting example
- 8:21Operators
- 12:35Marble diagrams
- 13:52refcount
- 17:48autoconnect
- 21:25recap
- 24:27subscribe
- 29:19use cases
- 38:41side effects
- 41:02Questions
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