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React Native ❤️ Web
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Yukiya Nakagawa
June 29, 2019
Technology
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700
React Native ❤️ Web
2019.6.29の #bigLT2019_aizu で話しました
Yukiya Nakagawa
June 29, 2019
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Transcript
React Native ❤ Web Υʔλʔηϧגࣜձࣾ த ࠸ #bigLT2019_aizu
Yukiya Nakagawa / ͳ͔͟Μ ձେֶ13ظੜʢ32ࡀʣ ৽ׁͰAgriTechͬͯΔΑʂ AndroidΤϯδχΞ ϞόΠϧدΓJSΤϯδχΞ
ͨ·ʹʹग़·͢ https://water-cell.jp/recruit/
ͬ͘͟ΓReact Native
Reactͱ • JavaScript͚ͷUIঢ়ଶཧϥΠϒϥϦ • Facebook͕ࣾΦʔφʔ • ϒϥβ͚ඳըϥΠϒϥϦͷReact DOM ɺϞόΠϧΞϓϦ͚ඳըϥΠϒϥϦͷ React
Nativeͱซ༻͢Δ
f(x) = UI / ؔͱͯ͠ͷUI import React from 'react'; import
{ View, TextInput, Button } from 'react-native'; export function LoginForm(props) { return ( <View> <TextInput placeholder="User ID" /> <TextInput placeholder="Password" /> <Button title="ϩάΠϯ" /> </View> ); } JSX -PHJO'PSNίϯϙʔωϯτͷ࣮
https://codezine.jp/article/detail/11295
Learn Once, Write Anywhere
Learn Once, Write Anywhere • React Nativeͷίϯηϓτͷͻͱͭ • JavaͷεϩʔΨϯͷͻͱͭͰ͋ΔʮWrite Once,
Run AnywhereʯΛͬͨ͡ͷ • Reactֶ͑͞ɺ͍ΖΜͳϓϥοτϑΥʔϜ ͚ʹίʔυ͕ॻ͚Δ https://code.fb.com/android/react-native-bringing-modern-web-techniques-to-mobile/
Anywhereͬͯݴ͏ͳΒ WebReact NativeͰ ॻ͖ͨ͘ͳ͍Ͱ͔͢ʂʁ
React Native for Web
ϒϥβ͚Reactͷ • <div><input>ͱ͍ͬͨHTMLͷཁૉ CSSΛΈ߹ΘͤͯUIΛߏங͍ͯ͘͠ • HTMLͷλάΞϓϦͷUIߏஙʹͦ͜·Ͱ͍ ͍ͯͳ͍ React NativeΛWebʹ࣋ͬͯ͘Δ͜ͱͷҙຯ -
φΧβϯυοτωοτ https://blog.nkzn.info/entry/2018/05/29/210030
React Nativeͷ߹ • ΞϓϦΛ։ൃ͢Δࡍʹ࠷ݶඞཁͳը໘෦ ͕ἧ͍ͬͯΔ
None
JavaScript࣮ߦϛυϧΣΞ ͱͯ͠ͷReact Nativeͱผʹ UIϑϨʔϜϫʔΫͱͯ͠ͷ React Nativeͷׂཻ͕ͱଥ
“ͦΕͳΒಉཻ͡Ͱ Web͚ͷίϯϙʔωϯτ ࡞ΕศརͳͷͰ”
export function View(props) { return ( <div>{props.children}</div> ); } export
function Text(props) { return ( <span>{props.children}</span> ); } React Nativeͱಉ໊͡લͰϒϥβ͚ ίϯϙʔωϯτΛ࣮͢Δ
React Native for Web https://github.com/necolas/react-native-web
None
React Native for Web͕ ࣮༻͞Ε͍ͯΔ શੈքͰ༗໊ͳWebαʔϏε
None
Twitterʂ React Native for WebͰʂ ॻ͔Ε͍ͯΔʂʂʂʂ https://twitter.com/necolas/status/913877194199359488 ˞5XJUUFSࣾͰ৽6*νʔϜͷςοΫϦʔυΛͯͨ͠ਓ͕3FBDU/BUJWFGPS8FCͷ࡞ऀ
None
͍ํ import React from 'react'; import { View, TextInput, Button
} from ‘react-native-web’; export function LoginForm(props) { return ( <View> <TextInput placeholder="User ID" /> <TextInput placeholder="Password" /> <Button title="ϩάΠϯ" /> </View> ); } ϒϥβ͚ͷڥͰ react-native-webϞδϡʔϧΛ͏
Ϗϧυ৬ਓ͚ͷઆ໌ • WebpackBabelϓϥάΠϯͰϞδϡʔϧ໊ ΛޡຐԽͯ͠ɺιʔείʔυ্ “react-native“ ϞδϡʔϧΛ͍ͬͯΔΑ͏ʹ ݟ͔͚ͤΔ͜ͱͰ͖·͢ • ϞόΠϧΞϓϦ͚UIͱWebΞϓϦ͚UIΛ ͋Δఔڞ௨ԽͰ͖Δ
ۀͰͬͯΈ·ͨ͠ • React Native for WebΛϓϩμΫγϣϯͰͬ ͯΈ·ͨ͠ - WaterCell Developer’s
Blog https://watercelldev.hatenablog.jp/entry/ 2018/07/18/122604 • ϒϥβ൛ͱAndroid൛Ͱ78%ͷTypeScript ίʔυΛڞ༗Ͱ͖ͨ
ࢼͯ͠Έ͍ͨํ • React Nativeͷ֦ுπʔϧ܈Ͱ͋ΔExpo͕ɺ ϒϥβλʔήοτΛϏϧυ͢ΔͨΊͷπʔ ϧͱͯ͠React Native for WebΛ࠾༻ͨ͠ •
expo-cliΛnpmͰΠϯετʔϧͯ͠ɺexpo init ίϚϯυΛୟ͚ɺϒϥβରԠࡁΈͷΞϓ Ϧ։ൃϓϩδΣΫτ͕࡞ΕΔ
σϞ ʢ࣌ؒ͋Εʣ
·ͱΊ • React NativeͰΞϓϦΛॻ͚ΔͱɺAndroidɺ iOSɺϒϥβͰΞϓϦΛॻ͚Δɺͱ͍͏ੈք ʹͳ͖͍ͬͯͯΔ • ͍ΖΜͳϓϥοτϑΥʔϜʹΞϓϦΛఏڙ͠ ͍ͨਓʹ໘ന͍ʹͳ͍ͬͯ·͢Αʂ
We are hiring!
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠