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ReactiveCocoa 5.0
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Sho Ikeda
August 20, 2016
Programming
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ReactiveCocoa 5.0
iOSDC Japan 2016での発表資料です #iosdc
https://iosdc.jp/2016/c/node/189
Sho Ikeda
August 20, 2016
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Transcript
ReactiveCocoa 5.0 @ikesyo iOSDC Japan 2016 2016-08-20 Sat #iosdc
@ikesyo • ͍͚͠ΐʔʗా ᠳ • ͯͳ@ژ • https://twitter.com/ikesyo • https://github.com/ikesyo
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RAC 5.0
RAC 5.0 • Repository Split • API Design • Signal
• SignalProducer • Properties • Atomic • Others
Repository Split • ReactiveCocoa: ReactiveSwift + UI layers • ReactiveSwift:
The core, platform-independent Swift APIs • ReactiveObjC: Objective-C APIs (e.g. RACSignal) • ReactiveObjCBridge: Swift <-> ObjC bridging layer
API Design • Swift 3 API Design Guidelines: • #3001
[5.0] Swift 3.0 Groundwork • #3028 Isolate unavailable APIs in 5.0. • Easier transition by the use of "@available(*, unavailable, renamed:..."
Signal • Lifetime Semantics: • #2959 [5.0] Changes to the
lifetime semantic of Signal. • ϝϞϦʔorϦιʔεϦʔΫ͕ͪ͠ͳͷΛղফ
SignalProducer • SignalProducer.buffer is removed: • #3028 Isolate unavailable APIs
in 5.0. • Use Properties or SignalProducer.replayLazily instead • SignalProducer.on: • #3097 Pre- and post-start hooks in SignalProducer.on. • started -> starting, started ʹׂ
Properties • #3023 Unifying read-only properties, and making PropertyProtocol class
bound. • Renamed PropertyProtocol is now class bound • AnyProperty -> Property • ConstantProperty -> Property(value:) • #2922 Property composition operators. • Signal, SignalProducerͱಉͷΦϖϨʔλʔͷՃ
Atomic • Optimizations: • #2984 Adopt inout parameter in Atomic.modify.
• #3123 Alter Atomic.modify to return the result of the supplied action.
Others • #3030 Add Lifetime to enable observation of object
deallocation in Swift class MyController { private let token = Lifetime.Token() var lifetime: Lifetime { return Lifetime(token) } func viewDidLoad() { super.viewDidLoad() fooBarProducer() .take(until: lifetime.ended) // .take(until: rac_lifetime.ended) .startWithNext { ... } } }
Others • #3133 Generic ScopedDisposable // Generic ScopedDisposable class ScopedDisposable<InnerDisposable:
Disposable>: Disposable { ... } class MyController { private let disposable = ScopedDisposable(CompositeDisposable()) func viewDidLoad() { super.viewDidLoad() disposable += fooBarProducer().startWithNext { ... } // disposable.innerDisposable.add(fooBarProducer().startWithNext { ... }) } }
! Happy Reactive Coding!! !
Thank you❗"