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Responder ChainΛͬͯ ίʔυΛεοΩϦ͍ͤͨ͞ HAKATA.swift @ukitaka
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twitter: @ukitaka_ github: @ukitaka Yuki Takahashi
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ࣗݾհ ❤ ؔܕϓϩάϥϛϯάɺDDD ✏ ܕγεςϜɺίϯύΠϥ ϨΠϠʔ
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ࠓͷ
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͍͖ͳΓͰ͕͢ɺ ͜ΜͳέʔεΛߟ͑ͯΈΔ
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Cellͷதͷ ϘλϯΛλοϓͨ͠Β Alert / ActionSheetग़͍ͨ͠
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͋Γ͕ͪ
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ຯʹΊΜͲ͍͘͞ • UIAlertControllerΛग़͢ʹViewControllerͰ ॲཧΛ͢Δඞཁ͕͋Δ • CellViewControllerͳΜͯΒͳ͍ • ViewControllerCellͷϘλϯΛ(ී௨)ࢀ র͍ͯ͠ͳ͍
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Α͋͘Δରॲ๏ • DelegateΛҾճ͢ • ֊͕ਂ͘ͳΕͳΔ΄Ͳਏ͍ • ViewߏͷมԽʹऑ͍
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ͳΜͱ͔͍ͨ͠
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ݪʹཱͪฦͬͯMVC
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MVCͰͲ͏͋Δ͖ʁ
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ϢʔβΞΫγϣϯͷॲཧ • MVCʹ͓͚ΔControllerͷΑ͏ͳΦϒδΣΫ τʹ௨Λͯ͠ϢʔβΞΫγϣϯड͚ͱΔͷ ͕ී௨ • MVCʹݶΒͣɺͲͷΞʔΩςΫνϟͰ͋ͬͯ ಉ͡
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௨Λ͠Α͏
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ཧ
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௨͢ΔଆΠϝʔδ .notifyΛݺͿ͚ͩ
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௨Λड͚औΔଆΠϝʔδ ͍͍ײ͡ʹDelegateͰड͚औΕΔ
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DelegateΛҾճ͢ඞཁ͕ͳ͍ DelegateύλʔϯͷΑ͏ͳ Πϝʔδ
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ͦ͜Ͱ Responder Chain
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= UIResponderͷ࿈ͳΓ
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UIResponder • UIReponder = ϢʔβͷೖྗΛर͑Δͭ • ͋ΔsubviewͰΠϕϯτΛर͏ͱॲཧͰ͖Δͱ ͜Ζ·Ͱ࣍ʑʹॲཧΛճ͍ͯ͘͠ • self.next Ͱ࣍ͷResponder͕औΕΔ = Responder Chain
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UIResponder • ResponderChain্ʹવViewController ͍Δʂ • DelegateΛҾ͖ճ͢·Ͱͳ͘ɺ͢Ͱʹͭͳ ͕͍ͬͯΔ • ͜Εʹ͔ͬΕ͍͍ײ͡ʹViewControllerʹ ʮ௨ʯͰ͖ͦ͏ʂ
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ͳΜ͔͑ͦ͏
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Ͳ͏Δ͔ʁ
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ActionΛఆٛ͢Δ
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DelegateΛఆٛ͢Δ
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ViewEventΛఆٛ͢Δ ୭͕ϋϯυϧ͢Δ͔ͱɺ Ͳ͏σΟεύον͢Δ͔ΛܾΊΔɻ
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ViewEventΛఆٛ͢Δ
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UIResponderΛ֦ு͢Δ Responder ChainΛḷͬͯɺ ΠϕϯτΛϋϯυϧͰ͖ΔͭΛݟ͚ͭΔ
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ʂ
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௨͢ΔଆΠϝʔδ .notifyΛݺͿ͚ͩ
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௨Λड͚औΔଆΠϝʔδ ͍͍ײ͡ʹDelegateͰड͚औΕΔ
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ཧͷੈք͕࣮ݱͨ͠
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ྑ͍ • DelegateΛViewͷਂ͍֊·ͰҾճ͢ඞཁ͕ ͳ͘ͳͬͨ • Viewͷ֊͕มԽͨ͠ͱͯ͠ɺίʔυͷม ߋ͕ෆཁɻViewͷมߋʹڧ͍ɻ
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มΘΒͳ͍ • ͋ΔΠϕϯτΛड͚औΔͨΊͷprotocol࣮ ͠ΕΛίϯύΠϧ࣌ʹݕग़Ͱ͖ͳ͍ • ͜ΕDelegateઃఆ͠ΕͰಉ͡ • ࣮ࡍʹಈ͔͢ or ςετͰΧόʔ
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RxCocoaͷԠ༻
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RxCocoa + Responder Chain • RxΛ͍ͬͯͯಉ͕͡ى͜Δ • RxDataSourcesΛ͍ͬͯͯɺCellͷதͷΠ ϕϯτर͑ͳ͍ • Responder Chainʹྲྀͯ͠͠·͓͏
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ukitaka/RxResponderChain
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͍ํ
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ࡶʹResponder Chainʹྲྀ͢ Ϙλϯ͕λοϓ͞ΕͨΒ
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ࡶʹResponder Chainʹྲྀ͢ దͳܕʹมͯ͠
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ࡶʹResponder Chainʹྲྀ͢ Responder Chainʹྲྀ͢
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ࡶʹVCͰड͚औΔ ViewControllerͰ ܕΛࢦఆͯ͠ड͚औΔ
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গ͚࣮ͩ͠ΛΈΔ
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࣮ͷཪଆ ࠇຐज़ʹΑ֤ͬͯUIResponderΦϒδΣΫτʹ PublishSubjectΛ࣋ͨͤΔ
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࣮ͷཪଆ self.rx.responderChain Λੜ͢
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࣮ͷཪଆ ͜ͷΦϒδΣΫτObserverType
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࣮ͷཪଆ ʹEvent͕ྲྀΕ͖ͯͨΒ ResponderChainΛḷͬͯ
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࣮ͷཪଆ ͖ͬ͞ੜͨ͠PublishSubjectʹ ΠϕϯτΛྲྀ͢
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࣮ͷཪଆ ड͚औΔͱ͖ܕͰfilter
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·ͱΊ
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ResponderChain • View → ViewControllerResponder Chainܨ ͕͍ͬͯΔ • ௨ʹ͑Δ / ָʹॻ͚Δ / มߋʹڧ͍
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͓ΘΓ