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実践Protocol-Extension
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Shinji Kobayashi
October 06, 2016
Programming
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実践Protocol-Extension
Shinji Kobayashi
October 06, 2016
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Transcript
࣮ફProtocol-Extension Shinji Kobayashi TOPLOG / Gentlesoft shibuya.swift #5
Swift3.0ରԠ ਐΜͰ·͔͢ʁ
ࢲ·ͩख͔ͣͰ͢ɻ (2.3ରԠ͕Α͏͘ऴΘͬͨͱ͜ΖͰ͢)
ͳͥ͜Ε΄ͲͷखؒΛ ͔͚ͯSwiftΛ͏ͷ͔ʁ •Objective-CΑΓ؆ܿʹॻ͚Δ͔Βʁ • ؔܕͷαϙʔτʁ •දݱྗͷߴ͍enumʁ •Protocol-Extensionʂ
Protocol-Extension ͷԿ͕͍͍ʁ
ϓϩάϥϜͷ࣮ํ๏ ΛมԽͤͨ͞
Ͳ͏͍͏෩ʹʁ
֮͑ͯཉ͍͠ศརػೳ •associatedtype •where Self: Hogehoge •Selfܕ
NameɿShinji Kobayashi Twitterɿ@gentlejkov GentleSoft Who are you? http://gentlesoft.net
Work https://toplog.co.jp/ TOPLOG iOS Engineer
TOPLOG APP 2016/3/1 ver.1.0.0 Now ver.2.1.3 100% pure Objective-C 70%
Swift
TOPLOG APP ΩϡϨʔγϣϯ ΦϦδφϧهࣄ
TOPLOG APP ΦϦδφϧهࣄ දࣔ͢Δσʔλҧ͏͕ػೳࣅ͍ͯΔ ΩϡϨʔγϣϯ
TOPLOG APP ΩϡϨʔγϣϯ ΦϦδφϧهࣄදࣔ ࠂදࣔ ΦϦδφϧهࣄ
TOPLOG APP ΩϡϨʔγϣϯ ΦϦδφϧهࣄදࣔProtocol ࠂදࣔProtocol ΦϦδφϧهࣄ
RANKING MY CLIP TOPLOG APIͷΓཁૉ͕एׯҧ͏(ߏಉ͡) Ϧετͷ࣮ํ๏ಉ͡ʢαʔόଆͰΓସ͑ʣ ΦϦδφϧهࣄදࣔ
ΦϦδφϧهࣄදࣔ
ΦϦδφϧهࣄදࣔ APIͷΓͷڞ௨෦ΛProtocolͰఆٛ͠ associatedtypeͰઃఆͨ͠ܕContentsΛ੍͢Δ ContentsܕͷσʔλΛ࣋ͭΫϥεͱͯ͠ ৼΔ͏͜ͱ͕Ͱ͖Δ
ΦϦδφϧهࣄදࣔ Extension
ΦϦδφϧهࣄදࣔ Extension ΦϦδφϧهࣄΛදࣔ͢ΔͨΊͷ ϏδωεϩδοΫΛ·ͱΊͨͷ
ࠂදࣔ Protocol-Extension ࠂΛදࣔ͢ΔͨΊͷ ϏδωεϩδοΫΛ·ͱΊͨͷ
ͭ·Γ Protocol-Extension
ϏδωεϩδοΫΛ ViewController͔Β ࣗવʹΓग़ͤΔ
ExtensionΛUIViewControllerͱͯ͠ѻ͍͍ͨ લड़ͨ͠Protocolݪଇ UIViewControllerͰ࣮͞ΕΔ Extensionͷܕ੍
Extensionͷܕ੍
ExtensionΛUIViewControllerͰ੍ ͜ͷExtensionͰ selfUIViewControllerͱͯ͠ѻ͑Δ Extensionͷܕ੍
ΦϦδφϧهࣄදࣔProtocolͱࠂදࣔProtocol ͷ྆ํΛ࣮͢ΔViewController͕͋Δ ্هProtocolͷ྆ํΛ࣮͢Δ߹ Ұ෦ϩδοΫΛมߋ͍ͨ͠ Extensionͷܕ੍
ඪ४࣮ ಛघ࣮ Extensionͷܕ੍
ඪ४࣮ ಛघ࣮ ಛఆͷProtocolΛ࣮͍ͯ͠Δ࣌ͷ ผϩδοΫ Extensionͷܕ੍
ܕ੍ʹΑΔಛघ࣮ ͷҙ ProtocolʹએݴΛ͓͔ͯ͠ͳ͍ͱ ϙϦϞϑΟοΫʹಈ࡞͠ͳ͍
Selfܕ Protocolʹ͓͍ͯࣗࣗΛࢦ͢ ܕͷ͜ͱ ࣗࣗͷΦϒδΣΫτΛฦ͢ ExtensionͷϝιουΛ࣮Ͱ͖Δ
ڞ௨ͷFactoryϝιου
֮͑ͯཉ͍͠ศརػೳ ϓϩάϥϜΛࣗવʹ ܕ҆શʹ͢ػೳ •associatedtype •where Self: Hogehoge •Selfܕ
·ͱΊ •Protocol-ExtensionΛ͏ࣄͰɺϏδωεϩδοΫ ΛࣗવʹViewController͔ΒΓग़͠ɺඞཁʹԠ ֤ͯ͡ΫϥεʹదԠͤ͞Δࣄ͕Մೳͱͳͬͨ •assosiatedtype, where, SelfܕͳͲͷػೳʹΑΓܕ҆ શͰ෭࡞༻ͷগͳ͍ϩδοΫͷڞ௨Խ͕Ͱ͖Δ