Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
WebViewを使って面倒なことから逃げよう
Search
Yu Watanabe
August 31, 2018
Programming
1
2.1k
WebViewを使って面倒なことから逃げよう
WebViewで面倒なコンポーネントを対応しませんか?
リポジトリはこちら ->
https://github.com/watanabeyu/webview-example
Yu Watanabe
August 31, 2018
Tweet
Share
More Decks by Yu Watanabe
See All by Yu Watanabe
Bolt 🤝 Expo
watanabeyu
0
310
npm packageとリリースとモノレポ
watanabeyu
0
63
react-native-ffmpegを使って動画をいじくりmawasou
watanabeyu
0
910
react-native-unimodulesを用いてのApp内課金実装
watanabeyu
0
1.1k
gandhの紹介です
watanabeyu
0
33
XcodeやAndroid Studioを弄らないアイコン管理
watanabeyu
2
640
Firebaseオンリー + React Nativeでアプリを作ると果たして簡単になるのか?
watanabeyu
4
1.2k
react-native-unimodulesのススメ
watanabeyu
1
6.5k
JavaScript製npmパッケージをTypeScriptで書き直した話
watanabeyu
0
1.1k
Other Decks in Programming
See All in Programming
なんとなくわかった気になるブロックテーマ入門/contents.nagoya 2025 6.28
chiilog
1
280
GPUを計算資源として使おう!
primenumber
1
220
チームのテスト力を総合的に鍛えて品質、スピード、レジリエンスを共立させる/Testing approach that improves quality, speed, and resilience
goyoki
5
1.1k
Hack Claude Code with Claude Code
choplin
6
2.5k
LT 2025-06-30: プロダクトエンジニアの役割
yamamotok
0
850
フロントエンドのパフォーマンスチューニング
koukimiura
5
2k
ISUCON研修おかわり会 講義スライド
arfes0e2b3c
1
460
たった 1 枚の PHP ファイルで実装する MCP サーバ / MCP Server with Vanilla PHP
okashoi
1
290
初学者でも今すぐできる、Claude Codeの生産性を10倍上げるTips
s4yuba
16
13k
AI Agent 時代のソフトウェア開発を支える AWS Cloud Development Kit (CDK)
konokenj
6
770
RailsGirls IZUMO スポンサーLT
16bitidol
0
200
PicoRuby on Rails
makicamel
2
140
Featured
See All Featured
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
10
970
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
26k
Optimizing for Happiness
mojombo
379
70k
How STYLIGHT went responsive
nonsquared
100
5.6k
Rails Girls Zürich Keynote
gr2m
95
14k
Rebuilding a faster, lazier Slack
samanthasiow
83
9.1k
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
The Invisible Side of Design
smashingmag
301
51k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
The Straight Up "How To Draw Better" Workshop
denniskardys
235
140k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
108
19k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
30
2.2k
Transcript
2018/08/31 ΘͨͳΏ͏ WEBVIEWΛͬͯ໘ͳ͜ͱ͔Βಀ͛Α͏
▸ ࣗݾհ ▸ WebViewͬͯ·͔͢ʁ ▸ WebViewΛԿʹ׆͔͔͢ʁ ▸ QRը૾ͷσίʔυ ▸ άϥϑΛදࣔ͠Α͏
▸ πΠʔτϖʔδΛදࣔ͠Α͏ ▸ ԻݯཧஂମͷαΠτ͔ΒཧίʔυΛऔಘ͠Α͏ ▸ WebViewͷΫοΩʔআํ๏ ▸ ·ͱΊ ֓ཁ
ࣗݾհ ΘͨͳΏ͏ ▸ ॴଐ ▸ גࣜձࣾg&h ▸ Web / ΞϓϦΛझຯͰެ։
▸ ࣄ༰ ▸ αʔό / ϑϩϯτ / ΞϓϦ / Web ▸ ΞΧϯτ ▸ Twitter : @hmktsu ▸ Github : @watanabeyu
▸ WebViewͬͯԿ͕Ͱ͖Δͷʁ ▸ URLͰࢦఆͨ͠ϖʔδ ▸ <p>hoge</p>Έ͍ͨͳܗͷจࣈྻ ▸ ϩʔΧϧͷHTMLϑΝΠϧ ▸ ͳΜͱͳ͍ͮ͘Β͍ҹ
▸ WebViewΛ͏࠷େͷར ▸ HTMLΛจࣈྻͰͤΔͷͰಈతʹHTMLΛ࡞ΕΔ ▸ JSΛͪ͜Β͔Βࠩ͠ࠐΜͰ࣮ߦͰ͖Δ(injectJavaScript) ▸ ಡΈࠐΜͩHTML͔ΒจࣈྻΛड͚औΕΔ(postMessage,onMessage) ▸ →Կ͔ʹ׆͔͢͜ͱ͕Ͱ͖ͳ͍ͩΖ͏͔ʁ WEBVIEWͬͯ·͔͢ʁ
▸ QRը૾Λσίʔυ͍͚ͨ͠Ͳreact-native linkͨ͘͠ͳ͍ ▸ άϥϑΛදࣔ͢Δͷʹsvgͱ͔ॾʑඞཁͳͷਏ͍ ▸ twitterͷπΠʔτΛද͍ࣔͨ͠Μ͚ͩͲίϯϙʔωϯτ࡞Δͷ͕ਏ͍ ▸ ԻݯཧஂମAPI͕༻ҙ͞Εͯͳ͍͚Ͳཧίʔυऔಘ͍ͨ͠ WEBVIEWΛԿʹ׆͔͔͢ʁ
ͪΐͬͱ໘ͳ࡞ۀΛWebViewʹಀ͕ͯ͠Έ·ͤΜ͔ʁ
WEBVIEWΛͬͯ໘ͳ͜ͱ͔Βಀ͛Α͏ QRը૾ͷσίʔυ
QRը૾ͷσίʔυ(1) ▸ Χϝϥϩʔϧ͔Βը૾Λબͯ͠σίʔυ͍ͨ͠ ▸ react-native-qrcode-scannerΛ͑Α͍ ▸ react-native linkΛ͠ͳ͍ͱ͍͚ͳ͍ ▸ Expoͩͱ͑ͳ͍
▸ WebαΠτͰQRը૾ΛσίʔυͰ͖ΔαΠτ͋Δ ▸ → WebViewͰ࣮Ͱ͖Δͣ ▸ → WebViewΛ௨ͯ͠σίʔυͰ͖ΔϥΠϒϥϦΛ࡞
QRը૾ͷσίʔυ(2) ▸ react-native-qrimage-decoderΛ࡞ ▸ react-native linkΛ͢Δඞཁͳ͠ ▸ ExpoͰ͑Δ ▸ AndroidExpoͷFileSystemʹґଘ
▸ ͍ۙ͏ͪʹExpo͡Όͳͯ͘ಈ͘Α͏ʹΞοϓσʔτ…
QRը૾ͷσίʔυ(3) ▸ src/includes/ios.htmlʹͯdataURLܗࣜͰ͞Εͨը૾Λσίʔυ ▸ HTMLͰ༻͍ͯ͠ΔϥΠϒϥϦLazarSoft/jsqrcode ▸ ߦͰॲཧ͢Δ͜ͱ͕Մೳ
QRը૾ͷσίʔυ(4) ▸ src/includes/_android.jsʹͯcanvasͰը૾ΛಡΈࠐΈdataURLԽ ▸ cozmo/jsQRͰσίʔυ ▸ Android൛ͷҙ ▸ WebViewͰҰʹॲཧ͖͠ΕΔྔͷݶք͕ܾ·ͬͯΔʁ ▸
ImagePickerͰಡΈࠐΜͩը૾uriΛͦͷ··ͯ͠ಡΈࠐΜͰ͘Εͳ͍ ▸ Ұอଘ͔ͯ͠ΒͦͷuriΛ͢ඞཁ͋Γ
QRը૾ͷσίʔυ(5) σϞ
WEBVIEWΛͬͯ໘ͳ͜ͱ͔Βಀ͛Α͏ άϥϑΛදࣔ͠Α͏
άϥϑΛදࣔ͠Α͏(1) ▸ react-native-chartreact-native-pathjs-chartsͳͲ ▸ react-native linkΛ͠ͳ͍ͱ͍͚ͳ͍ ▸ react-native-svgΛ͍Εͳ͍ͱ͍͚ͳ͍ ▸ Expoͩͱ͑ͳ͍
▸ WebαΠτͰChart.jsͱ͔D3.jsͰάϥϑදࣔՄೳ ▸ → WebViewͰ࣮Ͱ͖Δͣ ▸ → ࠓճChart.jsʹ࣮ͯ
άϥϑΛදࣔ͠Α͏(2) ▸ ϓϩδΣΫτʹgraph.htmlΛ࡞ ▸ WebViewͰݺͼग़ͯ͋͛͠Εྃ
άϥϑΛදࣔ͠Α͏(3)
άϥϑΛදࣔ͠Α͏(4) σϞ
WEBVIEWΛͬͯ໘ͳ͜ͱ͔Βಀ͛Α͏ πΠʔτϖʔδΛදࣔ͠Α͏
πΠʔτϖʔδΛදࣔ͠Α͏(1) ▸ πΠʔτϖʔδͷ࣮͔ͳΓ໘ ▸ ୯७ʹࢦఆͨ͠πΠʔτͷ༰Λදࣔ͢ΔϖʔδΛ࡞ Γ͍͚ͨͩͳͷʹຒΊࠐΊͳ͍ͷਏ͍ ▸ WebαΠτͷຒΊࠐΈΟδΣοτ͍͍ͨ ▸ →
WebViewͰ࣮
πΠʔτϖʔδΛදࣔ͠Α͏(2) ▸ ຒΊࠐΈπΠʔτΛදࣔ͢ΔίʔυΛsourceͱͯ͠ࢦఆ ▸ react-native-autoreheight-webviewΛೖΕͯߴ͞ΛՄมʹ
πΠʔτϖʔδΛදࣔ͠Α͏(3) σϞ
WEBVIEWΛͬͯ໘ͳ͜ͱ͔Βಀ͛Α͏ ԻݯཧஂମͷαΠτ͔ΒొίʔυΛऔಘ͠Α͏
ԻݯཧஂମͷαΠτ͔ΒཧίʔυΛऔಘ͠Α͏(1) ▸ ձࣾͰμϯεಈըͷΞϓϦΛ։ൃத(ϦϦʔε10݄಄༧ఆ) ▸ ԻݯཧஂମͱܖΛ͢Δͱ࠶ੜͳͲΛϦετԽͯ͠ఏग़͢Δඞཁ ͋Γ ▸ ΞϓϦཧը໘ͰԻݯΛొ͢ΔࡍʹཧίʔυΛೖྗ ▸ ਓྗͩͱ໘
▸ Α͘Α͘ݟΔͱϖʔδͷURL͕ཧίʔυʹͳͬͯΔ ▸ → WebViewͰURLΛ͍͚ͬͯऔಘͰ͖ͦ͏
ԻݯཧஂମͷαΠτ͔ΒཧίʔυΛऔಘ͠Α͏(2) ▸ چଶґવͷFrameαΠτͱ͍͏ҋਂ͞ ▸ electronͰͷ࣮ͳͷͰॾʑͷઆ໌লུ ▸ ಉ͡Α͏ʹURLࢹΛReact NativeͰߦ͏ͳΒ onNavigationStateChangeΛ͏͜ͱͰՄೳ
ԻݯཧஂମͷαΠτ͔ΒཧίʔυΛऔಘ͠Α͏(3) σϞ
·ͱΊ ▸ WebαΠτͰ࣮͞Ε͍ͯΔ͜ͱ͕Ͱ͖Δ ▸ άϥϑදࣔͱ͔໘ͳίϯϙʔωϯτHTMLͰ࡞ͬͯ͠·͏ͱָ ▸ πΠʔτϖʔδΈ͍ͨͳΉͷ͕໘ͳͷָ ▸ URLͷࢹΛͯ͠IDΛऔಘͰ͖Δ ▸
JavaScriptͷ࣮ߦίʔυΛࠩ͠ࠐΉ͜ͱ͕Ͱ͖Δ ▸ σϞͰදࣔͨ͠ΞϓϦͪ͜Β ▸ https://github.com/watanabeyu/webview-example
༨ஊ ಈըܥͷΞϓϦ࡞ͬͯ·͢ ڵຯ͋Δਓͥͻͱ͓͠͠·͠ΐ͏