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Hot
@ RxSwift
https://speakerdeck.com/ukitaka/cold-at-she-nei-rxswiftmian-qiang-hui
Hot
Cold → Hot
( )Hot
Hot
Hot
• multicast / publish
• replay / replayAll
• connect / refCount
• share / shareReplay
• shareReplayLatestWhileConnected
publish()
Question1
1,2,3
Sequence Map Hot
subscribe
Sequence Map Hot
subscribe
Answer
…
A.
!?
( )Hot
Hot
Hot
• multicast / publish
• replay / replayAll
• connect / refCount
• share / shareReplay
• shareReplayLatestWhileConnected
Hot 1
ConnectableObservable
publish() …
ConnectableObservable
• connect()
• connect() Hot
• connect() Observer
ConnectableObservable
• observer Hot
connect()
observer subscribe
(ConnectableObservable )
ConnectableObservable Operator
• multicast()
• publish()
• replay(bufferSize:)
• replayAll()
multicast()
• Hot Subject
• multicast() Subject
Operator
multicast()
publish()
• PublishSubject multicast
• ReplaySubject multicast
replay(bufferSize:) / replayAll()
ConnectableObservable
• Cold Observable multicast() /
publish() / replay(bufferSize:) / replayAll()
ConnectableObservable
• ConnectableObservable connect()
Hot Observable
…
ConnectableObservable
Hot Operator
( )Hot
Hot
Hot
• multicast / publish
• replay / replayAll
• connect / refCount
• share / shareReplay
• shareReplayLatestWhileConnected
share()
share()
ConnectableObservable
Observable
Hot
Question2
Answer
…
A.
) ?
Hot 2
: RefCount
share()
refCount()
• refCount() ConnectableObservable
Operator
refCount()
• Hot
• Hot subscribe
refCount
Hot subscribe
refCount()
• subscribe
connect()
Question3
Answer
…
A. 1,2,3
Hot
( )
Operator
shareReplay(bufferSize:)
• share + replay
• share = publish + refCount
• shareReplay = publish + refCount + replay
• Hot subscribe
replay
shareReplay(bufferSize:)
• RxSwift Example
•
shareReplay(1) (
)
• RxSwift v2.5.0 shareReplay 1
share
shareReplayLatestWhileConnected()
•
•
RxSwift(RxCocoa) Driver
• ShareReplay1 connect
1 .Completed replay
.Completed
• Driver
Hot
Hot
• ConnectableObservable connect()
• RefCount 1 subscribe
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