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RxSwiftษڧձ ͦͷ1

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ࣗݾ঺հ • Yusuke Hosonuma • ʢ࠷ۙͷʣҰݴɿ
 ʢ։ൃऀʹʣΊ͙Γ⁊͍ʢίʔυΛʣ๰͗ • ࠷ۙɺݞ͜Γͱ͔ࠅ͍ͷͰϤΨΛ࢝Ί·ͨ͠ɻ

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લճͷJOJORxSwift

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લճ • ϦΞΫςΟϒϓϩάϥϛϯάʹֶ͍ͭͯΜͩ • ඇಉظετϦʔϜΛѻ͏ϓϩάϥϛϯά • ݴ͍׵͑ΔͱԿ͔͕ྲྀΕͯ͘Δʮ઒ʯͰ͋Δ • ಺෦తʹ͸Observerύλʔϯ͕࢖ΘΕ͍ͯΔ

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ิ଍ • ϦΞΫςΟϒͱ͸ʮ൓Ԡੑʯͱ͍͏ҙຯ • Կ͔ʹ࿈ಈͯ͠উखʹԿ͔͕มΘΔΠϝʔδ • Excelͷ਺ࣜγεςϜ͸ϦΞΫςΟϒͳΞϓϦ έʔγϣϯͱݴ͑Δ

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ࠓճ

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ந৅తͳ֓೦Λ཭Εͯ

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࣮ફతͳRxSwift ʹ͍ͭͯ

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ֶΜͰ͍͖·͢ʂ ʢલճͷ಺༰͸๨ΕͯOKʣ

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ΞδΣϯμ • RxSwiftͷϞδϡʔϧ • RxSwiftͷΠϯετʔϧ • Observable —> Observer ͷ઀ଓ • RxSwiftͷαϯϓϧίʔυ • ϥΠϒίʔσΟϯάʢؤுͬͯΈΔΑʂʣ

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RxSwiftͷϞδϡʔϧ

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RxSwiftͷϞδϡʔϧ • 2ͭͷϞδϡʔϧͰ੒Γཱ͍ͬͯΔ • 1) RxSwift • 2) RxCocoa

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1) RxSwift

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1) RxSwift • import RxSwift • RxʢReactive ExtensionʣͷίΞ෦෼ͷػೳΛఏ ڙ͢ΔϞδϡʔϧ • UIKitͳͲʹґଘ͠ͳ͍७ਮͳϦΞΫςΟϒϓϩ άϥϛϯάͷࡐྉΛఏڙ͢Δ • ଞͷϓϩάϥϛϯάݴޠͰ΋ຆͲಉ͡ʢ͸ͣʣ

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2) RxCocoa ࢲͷ͜ͱݺΜͩʁ

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2) RxCocoa • import RxCocoa • UIKitͳͲiOSʹґଘͨ͠෦෼ͷػೳΛఏڙ • UIView΍NSNotificationʹରͯ͠ɺrx_xxxͱ͍ͬ ͨϓϩύςΟ͕௥Ճ͞ΕΔɻ • ྫʣrx_tapɺrx_textɺrx_valueɺetc…

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RxSwiftͷΠϯετʔϧ

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RxSwiftͷΠϯετʔϧ • CocoaPodsͰ΋ • CarthagoͰ΋ • ͨͿΜকདྷతʹ͸Swiftඪ४ͷύοέʔδϚωʔ δϟͰ΋ • ·͊ৄ͘͠͸ެࣜυΩϡϝϯτΛಡΜͰͶʂ

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Observableͱ Observerͷ઀ଓ

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Observerύλʔϯͷ෮श • GoFͷ23ͷσβΠϯύλʔϯͷ1ͭ • iOSͰ͸NSNotification͕ͦͷྫ • Observableʢ؍ଌ͞ΕΔ΋ͷʣͱɺ • Observerʢ؍ଌ͢Δ΋ͷʣ͕ొ৔͠ɺ • Observableͷมߋ͕Observerʹ௨஌͞ΕΔ

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RxSwiftͰͷ࿩ • ετϦʔϜ͕Observableʢ؍ଌ͞ΕΔ΋ͷʣ • ߪಡ͢Δͷ͕Observerʢ؍ଌ͢Δ΋ͷʣ • ্ه͸ʮ઒ʯͱʮ͓͹͋ͪΌΜʯʹஔ͖׵͑ͯ ΋OKʢ౧ଠ࿠ϝλϑΝʔ࠶ͼʣ

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ॏཁͳίϯηϓτ

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Observableͱ

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Observer͸

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઀ଓʢbindʣ͢Δ͜ͱ͕ ՄೳͰ͋Δ

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ͱΓ͋͑ͣίʔυྫ

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ྫʣλοϓ࣌ʹϥϕϧߋ৽

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͜Ε͕Rxʹ͓͚Δ σʔλόΠϯσΟϯά

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σʔλόΠϯσΟϯά • Observableʢ؍࡯͞ΕΔ΋ͷʣͱɺ • Observerʢ؍࡯͢Δ΋ͷʣ͸ɺ • ઀ଓʢbindʣՄೳͰ͋Δɻ • Tͷҙຯ͢Δͱ͜Ζ͸ܕɻ • ͭ·Γಉ͡ܕͰͳ͚Ε͹઀ଓͰ͖ͳ͍ɻ
 ʢT͸ʹஔ͖׵͑ͯ΋OKʣ

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΋͏Ұ౓ίʔυΛݟͯΈΔ • 2.ͰจࣈྻܕͷετϦʔϜʢObservableʣʹม ׵͢Δ͜ͱͰɺ • UILabelͷrx_textଐੑʢObserverʣʹ઀ଓ͍ͯ͠ Δɻ • ͜ΕʹΑΓϘλϯλοϓͷετϦʔϜʹྲྀΕͨσʔλ͕ ࣗಈతʹUILabelͷtextଐੑʹ൓ө͞ΕΔɻ

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RxSwift ίʔυαϯϓϧ

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1. Ϙλϯͷλοϓ

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Ϙλϯͷλοϓ • DisposeBagͱ͍͏ͷ͸ϝϞϦ؅ཧ༻ • ଞͷํ๏΋͋Δ͚Ͳɺ࠷ޙʹॻ͍͓͚ͯ͹ͱΓ͋͑ ͣOKͱࢥͬͯେৎ෉

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2. εϥΠμʔ

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εϥΠμʔ

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3. NSNotification

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NSNotification

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ࡉ͔͍ҧ͍͸ ͋Δ͚ΕͲ΋

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ຊ࣭తͳߟ͑ํ͸ ڞ௨͍ͯ͠Δ

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͢ͳΘͪ • ObservableʢετϦʔϜʣΛ࡞Γग़͠ɺ • ετϦʔϜΛՃ޻ʢmapɺstartWithʣ͠ɺ • Observerʢ؍ଌऀʣʹ઀ଓ͢Δɻ

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͜Ε͕Rxʹ͓͚Δ σʔλόΠϯσΟϯά Rx͸ετʔΧʔߦҝΛॿ௕͢Δ΋ͷͰ͸ அͯ͋͡Γ·ͤΜʢIt’s a jokeʣ

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લճͷ෮श΋݉Ͷͯ • ετϦʔϜ͸҆ՁͰ؆୯ʹ࡞ΕΔ • ετϦʔϜΛՃ޻͢ΔͨΊͷखஈ͕ἧ͍ͬͯΔ • ετϦʔϜʢObservableʣ͸ɺ
 ؍ଌऀʢObserverʣʹ઀ଓ͢Δ͜ͱ͕ग़དྷΔ • ͢΂ͯ͸ετϦʔϜͰ͋Δ

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ϥΠϒίʔσΟϯά

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όϦσʔγϣϯΛॻ͍ͯ ΈΔΑʂʢ࣌ؒ͋Ε͹ʣ

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ࠓ೔ͷ·ͱΊ • RxSwiftͷϞδϡʔϧ • ίΞ෦෼ͷʮRxSwiftʯͱ • UIKit෦෼ͷʮRxCocoaʯ͕͋Δ • RxSwiftͷΠϯετʔϧ • CocoaPods·ͨ͸CarthagoͰͲ͏ͧ

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ࠓ೔ͷ·ͱΊ • Observable —> Observer ͷ઀ଓ • Rxʹ͓͚ΔσʔλόΠϯσΟϯάػߏ • T͸ܕΛද͠ɺಉ͡ܕͳΒ઀ଓͰ͖Δ • ܕ͕ҟͳΔ৔߹͸ετϦʔϜΛՃ޻ʢmapͨ͠ Γʣ͢Δ͜ͱͰɺಉ͡ܕͷετϦʔϜʹ͢Δ͜ ͱ΋ग़དྷΔ

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ࠓ೔ͷ·ͱΊ • RxSwiftͷαϯϓϧίʔυ • Ϙλϯλοϓ • εϥΠμʔ • NSNotification • ͲΕ΋ڞ௨ͨ͠ύλʔϯɺObservableͱ Observerͷ઀ଓɺؒʹՃ޻͕͋ͬͨɻ

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࠷ޙʹ

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ࠓճͷεϥΠυͷ಺༰ Λཧղ͢Ε͹

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RxSwiftͷίʔυ͸͔ͳΓಡ ΊΔΑ͏ʹͳΔͱࢥ͍·͢

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ެࣜυΩϡϝϯτΛ ಡΜͰΈ·͠ΐ͏ʂ

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Thanks!