Cookpad TechConf 2019 〜霞が関〜　クックパッドiOSアプリの破壊と創造、そして未来

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@giginet ϞόΠϧج൫෦ ʙբ͕ؔʙ ΫοΫύουiOSΞϓϦͷ ഁյͱ૑଄ɺͦͯ͠ະདྷ

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2 ࠷ॳͷίϛοτ ೥݄ ݱࡏ·Ͱͷίϛοτ ϦϦʔεස౓ िճ ϦϦʔεลΓͷ։ൃऀ਺ d ૯ίʔυߦ਺ ˞ݱࡏͷίʔυϕʔεʹҠߦޙ

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3 ։ൃऀ͝ͱͷ1೔ͷྦྷੵϏϧυ࣌ؒ 1h 1.5h

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4 27% 73% 155,000ߦ 58,700 ߦ Objective-C Swift

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՝୊ 5 •1೔ྦྷੵ1࣌ؒ/ਓΛ্ճΔϏϧυ࣌ؒ •ࠓͳ͓25%͋ΔObjective-C •ϝϯς͞Εͯͳ͍ػೳ •ີ݁߹ա͗ͯͲ͔͜ม͑ΔͱյΕΔ

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6 բ͕ؔ IUUQTKBXJLJQFEJBPSHXJLJ&##%&#$"&"%#&#"#&"

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բ͕ؔͷ໨త 7 •ίʔυ੔ཧ •Objective-Cͷഁյ •Ϗϧυ࣌ؒͷվળ

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ཧ૝ 8 .PEVMFT %ZOBNJD'SBNFXPSL "QQMJDBUJPO

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ݱ࣮

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ϚϧνϞδϡʔϧԽ 10 •Ωϟογϡ͕ޮ͖ɺ։ൃ࣌ͷϏϧυߴ଎Խ •ݹ͍࣮૷ͷӅṭ •ը໘ؒΛૄ݁߹ʹͰ͖Δ

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Objective-C Bridging 11 11 MyApp-Bridging-Header.h MyApp-Swift.h

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բ͕ؔͷΰʔϧ 12 •։ൃऀͷखݩͷϏϧυ࣌ؒΛ1೔30෼Ҏ಺ʹೲΊΔ •Objective-CΛ׬શʹফ͠ڈΔ

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։ൃऀͷੜ࢈ੑΛ ͳΜͱ͔͢Δͷ͕ բ͕ؔ

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View Model ViewController

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15 View Model ViewController ϩδοΫΛ࣋ͭ7JFX XXXManager γϯάϧτϯͷσʔλιʔε .BTTJWF7JFX$POUSPMMFS ڞ௨Խ͞ΕͯංେԽͨ͠Ϟσϧ ☠ σουίʔυ ີ݁߹ 7JFXͷܧঝɺ࢖͍ճ͠ ৮ͬͯ͸ ͍͚ͳ͍΍ͭ ࠞಱ

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DataStore UseCase Presenter ViewBuilder View Wireframe Entity DataStore Entity UseCase Interactor Presentation Layer Domain Layer Data Layer Repository $PPLQBE7*1&3

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17 Tsukuru Cookpad 7*1&3ԽҎલͷ.7$ 0CKFDUJWF$4XJGUͷࠞࡏ 7*1&3Խޙͷը໘ͷू߹ 4XJGU ɾɾɾ ࠞಱ Cookpad

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18 Tsukuru Cookpad 7*1&3ԽҎલͷ.7$ 0CKFDUJWF$4XJGUͷࠞࡏ 7*1&3Խޙͷը໘ͷू߹ 4XJGU ɾɾɾ 7*1&3ΞϓϦέʔγϣϯ Cookpad

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طଘͷΞʔΩςΫνϟΛ ੜ͔ͨ͠ ϚϧνϞδϡʔϧԽ

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21 YAML yonaskolb/XcodeGen ࣗಈੜ੒

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22 ৽نλʔήοτ

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23 targets: CookpadCore: type: framework platform: iOS sources: - CookpadCore settings: base: PRODUCT_BUNDLE_IDENTIFIER: com.cookpad.CookpadCore scheme: testTargets: - CookpadCoreTests dependencies: - sdk: Foundation.framework - carthage: Result - carthage: RxCocoa - carthage: RxSwift

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24 σΟϨΫτϦߏ଄ʹΑΓ ॴଐ͢ΔϏϧυλʔήοτ͕ อূ͞ΕΔ

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xcodeprojΛഁյͨ͠Β Ϟδϡʔϧಋೖ͕༰қʹ

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ϚϧνϞδϡʔϧͷ ಋೖ 26

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բ͕ؔͷίϯηϓτ 27 •େ͖ͳॻ͖׵͑Λڧ੍͠ͳ͍ •Objective-CΛ࣋ͪࠐ·ͤͳ͍ •࣮૷ৄࡉ͸VIPERΞϓϦέʔγϣϯʹӅṭ

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բ͕ؔͷίϯηϓτ 28 •େ͖ͳॻ͖׵͑Λڧ੍͠ͳ͍ •Objective-CΛ࣋ͪࠐ·ͤͳ͍ •࣮૷ৄࡉ͸VIPERΞϓϦέʔγϣϯʹӅṭ

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բ͕ؔͷίϯηϓτ 29 •େ͖ͳॻ͖׵͑Λڧ੍͠ͳ͍ •Objective-CΛ࣋ͪࠐ·ͤͳ͍ •࣮૷ৄࡉ͸VIPERΞϓϦέʔγϣϯʹӅṭ

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30 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C

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31 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C

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32 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C

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33 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C

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34 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C

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35 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C ந৅౓

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36 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Environment ۩ମతͳ࣮૷ ΠϯλʔϑΣΠεͷΈΛఏڙ

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37 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Environment բ͕ؔήʔτ΢ΣΠ

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38 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Bridging HeaderΛ ࣋ͨͳ͍

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39 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Objective-C Bridge͸ ΞϓϦͰ͚ͩ࣋ͭ

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Objective-CΛ ࢓૊Έతʹഉআ SwiftԽͷ༏ઌॱҐΛՄࢹԽ

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41 Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Ӆṭ͍ͨ͠

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42 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Environment ΠϯλʔϑΣΠεͷΈΛఏڙ

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43 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Environment ݹ͍ϥΠϒϥϦ΁ͷґଘ͸ ΞϓϦͷΈ͕࣋ͭ ۩ମతͳ࣮૷

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44 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Environment ݹ͍ϥΠϒϥϦ΁ͷґଘ͸ ΞϓϦͷΈ͕࣋ͭ ۩ମతͳ࣮૷ ػೳͷ։ൃ࣌ʹݹ͍ϥΠϒϥϦΛ ҙࣝ͠ͳͯ͘ࡁΉΑ͏ʹ

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45 APIClient.share Cookpad Tests 45 Method Swizzling API Stub

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46 Environment CookpadEnvironment TestingEnvironment Cookpad Tests Network Logger ը໘ભҠ

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47 CookpadCore CookpadComponent Cookpad ɾɾɾ Cookpad Tsukuru Feature A Feature B Feature C Ҡߦத Ҡߦத

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՝୊ 48 Bundle Dynamic Linking Time Tsukuru׬શഁյ Feature moduleҠߦ Ϟδϡʔϧؒͷґଘ ద੾ͳϞδϡʔϧ෼ׂ୯Ґ ։ൃ૊৫ͷεέʔϧ Objective-C׬શഁյ

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͝ਗ਼ௌ ͋Γ͕ͱ͏͍͟͝·ͨ͠ !HJHJOFU