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rxswift2.pdf
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Yusuke Hosonuma
June 13, 2016
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rxswift2.pdf
Yusuke Hosonuma
June 13, 2016
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Transcript
RxSwiftษڧձ ͦͷ1
ࣗݾհ • Yusuke Hosonuma • ʢ࠷ۙͷʣҰݴɿ ʢ։ൃऀʹʣΊ͙Γ⁊͍ʢίʔυΛʣ͗ • ࠷ۙɺݞ͜Γͱ͔ࠅ͍ͷͰϤΨΛ࢝Ί·ͨ͠ɻ
લճͷJOJORxSwift
લճ • ϦΞΫςΟϒϓϩάϥϛϯάʹֶ͍ͭͯΜͩ • ඇಉظετϦʔϜΛѻ͏ϓϩάϥϛϯά • ݴ͍͑ΔͱԿ͔͕ྲྀΕͯ͘ΔʮʯͰ͋Δ • ෦తʹObserverύλʔϯ͕ΘΕ͍ͯΔ
ิ • ϦΞΫςΟϒͱʮԠੑʯͱ͍͏ҙຯ • Կ͔ʹ࿈ಈͯ͠উखʹԿ͔͕มΘΔΠϝʔδ • ExcelͷࣜγεςϜϦΞΫςΟϒͳΞϓϦ έʔγϣϯͱݴ͑Δ
ࠓճ
நతͳ֓೦ΛΕͯ
࣮ફతͳRxSwift ʹ͍ͭͯ
ֶΜͰ͍͖·͢ʂ ʢલճͷ༰ΕͯOKʣ
ΞδΣϯμ • RxSwiftͷϞδϡʔϧ • RxSwiftͷΠϯετʔϧ • Observable<T> —> Observer<T> ͷଓ
• RxSwiftͷαϯϓϧίʔυ • ϥΠϒίʔσΟϯάʢؤுͬͯΈΔΑʂʣ
RxSwiftͷϞδϡʔϧ
RxSwiftͷϞδϡʔϧ • 2ͭͷϞδϡʔϧͰΓཱ͍ͬͯΔ • 1) RxSwift • 2) RxCocoa
1) RxSwift
1) RxSwift • import RxSwift • RxʢReactive ExtensionʣͷίΞ෦ͷػೳΛఏ ڙ͢ΔϞδϡʔϧ •
UIKitͳͲʹґଘ͠ͳ͍७ਮͳϦΞΫςΟϒϓϩ άϥϛϯάͷࡐྉΛఏڙ͢Δ • ଞͷϓϩάϥϛϯάݴޠͰຆͲಉ͡ʢͣʣ
2) RxCocoa ࢲͷ͜ͱݺΜͩʁ
2) RxCocoa • import RxCocoa • UIKitͳͲiOSʹґଘͨ͠෦ͷػೳΛఏڙ • UIViewNSNotificationʹରͯ͠ɺrx_xxxͱ͍ͬ ͨϓϩύςΟ͕Ճ͞ΕΔɻ
• ྫʣrx_tapɺrx_textɺrx_valueɺetc…
RxSwiftͷΠϯετʔϧ
RxSwiftͷΠϯετʔϧ • CocoaPodsͰ • CarthagoͰ • ͨͿΜকདྷతʹSwiftඪ४ͷύοέʔδϚωʔ δϟͰ • ·͊ৄ͘͠ެࣜυΩϡϝϯτΛಡΜͰͶʂ
Observable<T>ͱ Observer<T>ͷଓ
Observerύλʔϯͷ෮श • GoFͷ23ͷσβΠϯύλʔϯͷ1ͭ • iOSͰNSNotification͕ͦͷྫ • Observableʢ؍ଌ͞ΕΔͷʣͱɺ • Observerʢ؍ଌ͢Δͷʣ͕ొ͠ɺ •
Observableͷมߋ͕Observerʹ௨͞ΕΔ
RxSwiftͰͷ • ετϦʔϜ͕Observableʢ؍ଌ͞ΕΔͷʣ • ߪಡ͢Δͷ͕Observerʢ؍ଌ͢Δͷʣ • ্هʮʯͱʮ͓͋ͪΌΜʯʹஔ͖͑ͯ OKʢ౧ଠϝλϑΝʔ࠶ͼʣ
ॏཁͳίϯηϓτ
Observable<T>ͱ
Observer<T>
ଓʢbindʣ͢Δ͜ͱ͕ ՄೳͰ͋Δ
ͱΓ͋͑ͣίʔυྫ
ྫʣλοϓ࣌ʹϥϕϧߋ৽
͜Ε͕Rxʹ͓͚Δ σʔλόΠϯσΟϯά
σʔλόΠϯσΟϯά • Observable<T>ʢ؍͞ΕΔͷʣͱɺ • Observer<T>ʢ؍͢Δͷʣɺ • ଓʢbindʣՄೳͰ͋Δɻ • Tͷҙຯ͢Δͱ͜Ζܕɻ •
ͭ·Γಉ͡ܕͰͳ͚ΕଓͰ͖ͳ͍ɻ ʢTʹஔ͖͑ͯOKʣ
͏ҰίʔυΛݟͯΈΔ • 2.ͰจࣈྻܕͷετϦʔϜʢObservable<String>ʣʹม ͢Δ͜ͱͰɺ • UILabelͷrx_textଐੑʢObserver<String>ʣʹଓ͍ͯ͠ Δɻ • ͜ΕʹΑΓϘλϯλοϓͷετϦʔϜʹྲྀΕͨσʔλ͕ ࣗಈతʹUILabelͷtextଐੑʹө͞ΕΔɻ
RxSwift ίʔυαϯϓϧ
1. Ϙλϯͷλοϓ
Ϙλϯͷλοϓ • DisposeBagͱ͍͏ͷϝϞϦཧ༻ • ଞͷํ๏͋Δ͚Ͳɺ࠷ޙʹॻ͍͓͚ͯͱΓ͋͑ ͣOKͱࢥͬͯେৎ
2. εϥΠμʔ
εϥΠμʔ
3. NSNotification
NSNotification
ࡉ͔͍ҧ͍ ͋Δ͚ΕͲ
ຊ࣭తͳߟ͑ํ ڞ௨͍ͯ͠Δ
͢ͳΘͪ • Observable<T>ʢετϦʔϜʣΛ࡞Γग़͠ɺ • ετϦʔϜΛՃʢmapɺstartWithʣ͠ɺ • Observer<T>ʢ؍ଌऀʣʹଓ͢Δɻ
͜Ε͕Rxʹ͓͚Δ σʔλόΠϯσΟϯά RxετʔΧʔߦҝΛॿ͢ΔͷͰ அͯ͋͡Γ·ͤΜʢIt’s a jokeʣ
લճͷ෮श݉Ͷͯ • ετϦʔϜ҆ՁͰ؆୯ʹ࡞ΕΔ • ετϦʔϜΛՃ͢ΔͨΊͷखஈ͕ἧ͍ͬͯΔ • ετϦʔϜʢObservableʣɺ ؍ଌऀʢObserverʣʹଓ͢Δ͜ͱ͕ग़དྷΔ • ͯ͢ετϦʔϜͰ͋Δ
ϥΠϒίʔσΟϯά
όϦσʔγϣϯΛॻ͍ͯ ΈΔΑʂʢ࣌ؒ͋Εʣ
ࠓͷ·ͱΊ • RxSwiftͷϞδϡʔϧ • ίΞ෦ͷʮRxSwiftʯͱ • UIKit෦ͷʮRxCocoaʯ͕͋Δ • RxSwiftͷΠϯετʔϧ •
CocoaPods·ͨCarthagoͰͲ͏ͧ
ࠓͷ·ͱΊ • Observable<T> —> Observer<T> ͷଓ • Rxʹ͓͚ΔσʔλόΠϯσΟϯάػߏ • TܕΛද͠ɺಉ͡ܕͳΒଓͰ͖Δ
• ܕ͕ҟͳΔ߹ετϦʔϜΛՃʢmapͨ͠ Γʣ͢Δ͜ͱͰɺಉ͡ܕͷετϦʔϜʹ͢Δ͜ ͱग़དྷΔ
ࠓͷ·ͱΊ • RxSwiftͷαϯϓϧίʔυ • Ϙλϯλοϓ • εϥΠμʔ • NSNotification •
ͲΕڞ௨ͨ͠ύλʔϯɺObservable<T>ͱ Observer<T>ͷଓɺؒʹՃ͕͋ͬͨɻ
࠷ޙʹ
ࠓճͷεϥΠυͷ༰ Λཧղ͢Ε
RxSwiftͷίʔυ͔ͳΓಡ ΊΔΑ͏ʹͳΔͱࢥ͍·͢
ެࣜυΩϡϝϯτΛ ಡΜͰΈ·͠ΐ͏ʂ
Thanks!