ReactNativeで勉強会のビューワーアプリを作ってみて学んだ知見

by masarufuruya

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ReactNativeͰษڧձͷϏϡʔϫ ʔΞϓϦΛ࡞ͬͯΈֶͯΜͩ஌ݟ ݹՈ େ

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ࣗݾ঺հ ݹՈ େ (@enzerubank) ϑϦʔϥϯε ϑϩϯτΤϯυΤϯδχΞ ωΠςΟϒ(Swift, Kotlin)ͷ஌ࣝ͸θϩ ࢓ࣄͰReactNativeͷΞϓϦ։ൃΛ΍Δ͜ͱʹʂ

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ࠓճͷൃදͰ࿩͢͜ͱ ○ ࣮຿ͰֶΜͩReactNativeͷϕʔεͷΞʔ ΩςΫνϟΛαϯϓϧΛݩʹ࿩͠·͢

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͜Μͳ͜ͱ͸ࠓճ͸࿩͠·ͤΜ ○ ReactNative, Reduxʹؔ͢Δجૅతͳ࿩ ○ ࣮ࡍͷϦϦʔεʹ޲͚ͨௐ੔ͷ࿩

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ࠓճಋೖͨ͠ϥΠϒϥϦ ○ react-native ○ axios ○ redux ○ redux-saga ○ react-navigation

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ࠓճಋೖͨ͠ϥΠϒϥϦ ○ react-native ○ axios ○ redux ○ redux-saga ○ react-navigation redux֎ͷ෭࡞༻Λ୲౰ ը໘ભҠΛ୲౰ɻWebͰ΋࢖͑Δ ঢ়ଶมߋͷͨΊͷϧʔϧΛܾΊΔ શମͷϕʔε

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ॲཧͷྲྀΕ View Action ඇಉظॲཧ Store Reducer Saga Πϕϯτൃੜ ඞཁʹԠͯ͡SagaΛ్தʹڬΉ ΠϕϯτΛ౉͢ ঢ়ଶΛߋ৽ ϏϡʔΛ࠶ඳը

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ॲཧͷྲྀΕ View Action ඇಉظॲཧ Store Reducer Πϕϯτൃੜ ඞཁʹԠͯ͡SagaΛ్தʹڬΉ ΠϕϯτΛ౉͢ ঢ়ଶΛߋ৽ ϏϡʔΛ࠶ඳը Saga

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σϞ

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redux-sagaͷ֓ཁ • Root͕λεΫΛForkͯ͠ฒྻॲཧΛ࣮ݱ͢Δ • λεΫ͸ৗʹΠϕϯτͷൃੜΛ଴ͭ Fork RootSaga Call Take HomeScreenSaga

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redux-sagaͰActionΛड͚औΔ • takeͰϢʔβʔͷΫϦοΫΠϕϯτΛݕ஌ • ΠϕϯτΛऔಘ͢Δؔ਺Λ࣮ߦ

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redux-sagaͰॲཧΛ࣮ߦ͢Δ • callͰΠϕϯτͷऔಘ • putͰऔಘ߲ͨ͠໨ͰReducerΛߋ৽͢Δ

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react-navigationʹΑΔը໘ભҠ • Ұཡͷ্ʹهࣄৄࡉը໘Λදࣔ • StackNavigationΛར༻

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ExpoͰಈ࡞֬ೝ (঺հ͖͠Εͳ͍ͷͰ) • QRίʔυ͔Βμ΢ϯϩʔυ • Ұ௨Γͷಈ͖͕࣮ػͰࢼͤΔ https://expo.io/@react-navigation/NavigationPlayground

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react-navigation+Reduxͷ஫ҙ఺ • Quick Start௨ΓͰ͸্ख͍͔͘ͳ͍ • Reduxͱͷ࿈ܞ͸φϏ༻ͷReducer͕ඞཁ ※ https://reactnavigation.org/docs/guides/redux

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WebViewʹ͍ͭͯ • ৄࡉը໘͸ཁૉ͕ଟ͍ͷͰར༻ • ࠓճ͸γϯϓϧʹURLಡΈࠐΈ • Android͸ChromeͰදࣔ͢Δ ※ Chromeͷํ͕ύϑΥʔϚϯε͕ྑ͍Β͍͠ (ৄ͍͠ํͥͻڭ͍͑ͯͩ͘͞) ※

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ࠓޙऔΓ૊Έ͍ͨ͜ͱ ○ ஍ਤɾΧϝϥػೳΛ࢖ͬͨΞϓϦ։ൃ ○ SketchσʔλͷReactNativeग़ྗ

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͝੩ௌ͋Γ͕ͱ͏͍͟͝· ͨ͠ʂ