その面倒な作業、「Dart」にやらせませんか？ Flutter開発者のための業務効率化

2025/10/4 FlutterKaigi mini #5 @Sapporo LT資料

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1. ͦͷ໘౗ͳ࡞ۀɺʮDartʯʹ ΍Βͤ·ͤΜ͔ʁ Flutter։ൃऀͷͨΊͷۀ຿ޮ཰Խ 2025/10/04 FlutterKaigi mini #5 @Sapporo
2. ࣗݾ঺հ • ໊લ: ాݪ ༿ • 𝕏 : @yord031ʢ ɹ ʣ • ॴଐ: גࣜձࣾϝϯόʔζ ΫϩεΞϓϦέʔγϣϯΧϯύχʔ FlutterΛओ࣠ʹɺΞϓϦ։ൃࢧԉΛ͍ͯ͠·͢
3. גࣜձࣾϝϯόʔζ͸ɺFlutterKaigi 2025ͷϒϩϯζεϙϯαʔͰ ͢
4. ଟ༷ͳin-memoryΩϟογϡΛఏڙ͢ΔDartύοέʔδΛެ։ https://pub.dev/packages/cacherine 4 yordgenome03 mem-5514-tahara qr.dartύοέʔδʹOSS Contribution https://github.com/kevmoo/qr.dart/issues?q=author%3Amem-5514-tahara FlutterͷFormWidgetΛSwiftUIͰ࠶ݱ͢ΔSwiftύοέʔδΛެ։ https://swiftpackageindex.com/yordgenome03/FlutterLikeForm cacherine FlutterLikeForm qr.dart
5. ʲຊ୊ʳ օ͞ΜɺPythonॻ͍ͯ·ͤΜ͔ʁ
6. Α͋͘Δ৔໘ • CSVूܭ͍ͨ͠ → Python + Pandas • WebεΫϨΠϐϯά͍ͨ͠ → Python + BeautifulSoup • ը૾ॲཧ͍ͨ͠ → Python + PIL • ఆظ࣮ߦ͍ͨ͠ → Python + cron • etc … ۀ຿ޮ཰Խ = Pythonʁ
7. ͦͷ࡞ۀɺDartʹ΍Βͤ·ͤΜ͔ʁ
8. Pythonͷ࡞ۀΛDartʹஔ͖׵͑Δͱͨ͠Β DartͰ΋উͯΔʢ֬৴ʣ λεΫ 1ZUIPO %BSU $47ूܭ 1BOEBT JP
   
   DTW 8FCεΫϨΠϐϯά #FBVUJGVM4PVQ IUUQ
   
   QBSTFS ը૾Ұׅॲཧ 1*- JP
   
   JNBHF ఆظ࣮ߦ DSPO
   TDIFEVMF DSPO Ϛ΢εɾΩʔϘʔυૢ࡞ 1Z"VUP(6* QSPDFTT@SVO
   SPCPU
   JP ϒϥ΢βૢ࡞ 4FMFOJVN XFCESJWFS
9. ࣮ࡍʹDartͰࣗಈԽͯ͠ΈΔ
10. Flutter Issueࣗಈڞ༗γεςϜ 1. ৘ใऩूͷࣗಈԽˡఆظతͳ৘ใऔಘɾߏ଄Խॲཧ • Flutter GitHubϦϙδτϦͷ׆ൃͳIssueΛऔಘ 2. ࠩ෼؅ཧͷࣗಈԽˡมԽݕग़ɾϑΟϧλϦϯάॲཧ • લճऔಘ෼ͷࠩ෼ͷΈΛநग़ 3. ౤ߘ࡞ۀͷࣗಈԽˡUIࣗಈૢ࡞ɾٖࣅਓྗ࣮ߦ • SlackࢦఆνϟϯωϧʹϢʔβʔ໊Ͱ౤ߘ
11. ॲཧϑϩʔ DSPOʹΑΔఆ࣮࣌ߦ (JU)VC
    *TTVFऔಘ લճσʔλಡΈࠐΈ ࠩ෼֬ೝ 4MBDLىಈ ϝοηʔδ౤ߘ ॲཧऴྃ ࣍ճDSPO࣮ߦ଴ػ ࠩ෼؅ཧσʔλอଘ ͳ͠ ͋Γ
12. SlackʹϢʔβʔ໊Ͱࣗಈ౤ߘ͢Δٕज़બ୒ࢶ 1. SlackͷIncoming WebhookΛ࢖͏ • ❌ΞϓϦ໊͔Βͷ౤ߘʹͳͬͯ͠·͏ 2. SlackͷWeb API chat.postMessage Λ࢖͏ • ⭕ࢦఆϢʔβʔ͔Βࢦఆνϟϯωϧʹ౤ߘͰ͖Δ 3. Apple ScriptͰը໘ɾΩʔϘʔυΛૢ࡞͢Δ • 🔺ը໘ঢ়ଶʹґଘ͠΍͘͢ਫ਼౓͕௿͍ ٕज़ݕূͷͨΊApple ScriptΛબ୒ ※ Mac؀ڥΛ૝ఆ
13. // SlackΞϓϦΛىಈ Future<void> _activateSlack() async { await Process.run('osascript', [ '-e', 'tell application "Slack" to activate', ]); } • dart:ioͷProcess.runؔ ਺Λ࢖ͬͯɺosascript -e ίϚϯυΛ࣮ߦ͢Δ • applicationʹSlackΛࢦఆ ͯ͠activeԽ ؔ਺ఆٛᶃ SlackΞϓϦΛΞΫςΟϒԽ
14. // ΫΠοΫεΠονϟʔΛ։͘ (Cmd+K) Future<void> _openQuickSwitcher() async { await Process.run('osascript', [ '-e', 'tell application "System Events" to keystroke "k" using command down', ]); } • dart:ioͷProcess.runؔ ਺Λ࢖ͬͯɺosascript -e ίϚϯυΛ࣮ߦ͢Δ • System Eventsʹ⌘KΛଧ 伴ࢦࣔ ؔ਺ఆٛᶄ ΫΠοΫεΠονϟʔΛ։͘
15. // ΫϦοϓϘʔυʹίϐʔ Future<void> _copyToClipboard(String text) async { final process = await Process.start('pbcopy', []); process.stdin.write(text); await process.stdin.close(); await process.exitCode; } • dart:ioͷProcess.startؔ ਺ͰετϦʔϜΛ࢖ͬ ͯɺpbcopyίϚϯυΛ࣮ ߦ͢Δ • ඪ४ೖྗͰςΩετΛॻ ͖ࠐΜͰ͔ΒετϦʔϜ Λด͡Δ ؔ਺ఆٛᶅ ΫϦοϓϘʔυʹίϐʔ
16. // ΫϦοϓϘʔυ͔Βϖʔετ (Cmd+V) Future<void> _pasteFromClipboard() async { await Process.run('osascript', [ '-e', 'tell application "System Events" to keystroke "v" using command down', ]); } • dart:ioͷProcess.runؔ ਺Λ࢖ͬͯɺosascript -e ίϚϯυΛ࣮ߦ͢Δ • System Eventsʹ⌘VΛଧ 伴ࢦࣔ ؔ਺ఆٛᶆ ΫϦοϓϘʔυ͔Βϖʔετ
17. // EnterΩʔԡԼ Future<void> _pressEnter() async { await Process.run('osascript', [ '-e', 'tell application "System Events" to key code 36', ]); } • dart:ioͷProcess.runؔ ਺Λ࢖ͬͯɺosascript -e ίϚϯυΛ࣮ߦ͢Δ • System EventsʹEnter ΩʔΛଧ伴ࢦࣔ ؔ਺ఆٛᶇ EnterΩʔ
18. // Cmd + EnterͰ౤ߘ Future<void> _postWithCommandEnter() async { await Process.run('osascript', [ '-e', 'tell application "System Events" to key code 36 using command down', ]); } • dart:ioͷProcess.runؔ ਺Λ࢖ͬͯɺosascript -e ίϚϯυΛ࣮ߦ͢Δ • System Eventsʹ⌘Enter Λଧ伴ࢦࣔʢΩʔίʔυ ࢦఆʣ ؔ਺ఆٛᶈ ϝοηʔδͷ౤ߘ
19. ϓϩάϥϜ࣮ߦ݁Ռ 1. ࣗಈͰSlackΞϓϦ͕ىಈ 2. SlackΞϓϦ͕ΞΫςΟϒʹ 3. ΫΠοΫεΠονϟʔͰ #generalʹҠಈ 4. ϝοηʔδཝʹFlutter Issuesͷ·ͱΊΛೖྗ 5. ϝοηʔδૹ৴ ϓϩάϥϜͰ౤ߘͨ͠ϝοηʔδ
21. ·ͱΊ -ʮ໘౗ͳ࡞ۀ͸DartͰ΍Γ͍ͨʯ • ϥΠϒϥϦͷ๛෋͞ɾσʔλ෼ੳɾεΫϨΠϐϯάͳͲ ͸Pythonʹෛ͚Δ • APIϦΫΤετ΍σʔλॲཧΛDartͰޮ཰తʹΨϯΨϯॻ͚Δ • Flutterͱಉ͡ݴޠͦͷ··ͰࣗಈԽͰ͖Δͷ͸ؾ͍͍࣋ͪ • ޷͖౓: Dart > Python
22. ͓ΘΓʹ גࣜձࣾϝϯόʔζ͸ɺΦ΢ϯυϝσΟΞʰBEMAʱͰɺΤϯδχΞͷ ࣮ફʹ໾ཱͭ࠷৽ͷٕज़τϨϯυ΍։ൃϊ΢ϋ΢Λൃ৴͍ͯ͠·͢ https://bema.jp/ Check!! 𝕏 ΞΧ΢ϯτͷϑΥϩʔ΋ΑΖ͓͘͠ئ͍͠·͢ https://x.com/BEMA_Lab エンジニアの 成 長 を 支 援する 技術メディア
23. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ 2025/10/04 FlutterKaigi mini #5 @Sapporo ͦͷ໘౗ͳ࡞ۀɺʮDartʯʹ΍Βͤ·ͤΜ͔ʁ Flutter։ൃऀͷͨΊͷۀ຿ޮ཰Խ