εϚϗΞϓϦΫϩεϓϥοτ ϑΥʔϜ։ൃͷ͍· Flutter/DartʹΑΔiOS/AndroidΞϓϦ։ൃ ฏ໺༤Ұ 2021/3/24 

࿩͢ਓ ฏ໺༤Ұ ϑϦʔϥϯεΤϯδχΞ Android/iOSεϚϗΞϓϦ։ൃઐۀ 2019/8Լ०ʹઋ୆ʹҾͬӽ͠ 

εϚϗΞϓϦͷ։ൃ؀ڥ • ωΠςΟϒ • Swift(iOS) or Kotlin(Android) • ΫϩεϓϥοτϑΥʔϜ • Flutter ← ࠓ೔ͷ࿩ • React Native • Xamarin (কདྷ͸.NET Multi-platform App UIʹҠߦ) • ͦͷ΄͔ (DelphiɾCordova…) 

2019೥ࠒ͔ΒFlutter͕ओྲྀʹͳΓग़ͨ͠ 

Flutterͱ͸ • 1ιʔεͰiOS/AndroidͷΞϓϦͷ྆ํΛ࡞ΕΔFramework • Flutterઐ༻SDKͷAPIΛར༻ͯ͠։ൃ • Google͕։ൃ • Dartݴޠ • JavaScriptͱ͔JavaͬΆ͍ 

1ιʔεͰiOS/AndroidͷΞϓϦͷ྆ํΛ࡞ΕΔFramework Reference: https:// fl utter.dev/docs/resources/technical-overview#everythings-a-widget 

FlutterͷΑ͍ײ͡ͱͷͱ͜Ζ • ϗοτϦϩʔυ • UIͳͲͷमਖ਼ޙ͙͢ʹ൓ө͞ΕΔ • ը໘ͷUIΛίʔυͰॻ͚Δ • ωΠςΟϒػೳΛѻ͏ϓϥάΠϯ͕ͦΕͳΓʹॆ࣮ • ΧϝϥɺΧϝϥϩʔϧ΁ͷอଘػೳͳͲ 

FlutterͷΑ͍ײ͡ͱͷͱ͜Ζ • ϨΨγʔͳͱ͜Ζ͕গͳ͍ • ։ൃ؀ڥ͕͔ͬ͠Γ͍ͯ͠Δ • Visual Studio CodeɾAndroid Studio 

Flutterͷ೉͍͠ͱ͜Ζ • UI͕ωΠςΟϒͰ͸ͳ͍໰୊ • ͱ͸͍͑ɺ͔ͳΓΑ͘ग़དྷ͍ͯΔ • ݁ہωΠςΟϒͷ஌͕ࣝඞཁʹͳΔ͜ͱ͕͋Δ໰୊ • Ϗϧυ·ΘΓʹଟ͍ 

Flutterͷ೉͍͠ͱ͜Ζ • Flutter/DartͷόʔδϣϯΞοϓૣ͗͢໰୊ • ઃܭͷྲྀߦมΘΓ͗͢໰୊ • ݴޠͷઃܭ͕ͪΐͬͱݹ͘͘͞ݟ͑Δ໰୊ • ະͩʹจ຤ʹηϛίϩϯ… • Flutter 2.0͔Β͸Null safety͕ಋೖ͞Εͨ 

࠾༻ͷ͠Ͳ͜Ζ • API͔ΒσʔλΛऔ͖ͬͯͯϦετʹදࣔͨ͠ΓɺAPIʹσʔλΛ౤͛ Δ͘Β͍ͷΦʔιυοΫεͳΞϓϦ • εϚϗΞϓϦࣗମ͕ϝΠϯͰ͸ͳ͍Կ͔ʢػثͷϦϞίϯΞϓϦͳ ͲʣͷͨΊͷΞϓϦ • ݸਓతʹ͸খن໛Ҋ݅͘Β͍͕͓͢͢Ί • ͱ͸͍͑ɺେن໛΋ҙ֎ͱ͍͚Δ 

࠾༻ͷ೉͍͠ͱ͜Ζ • Flutter/DartͰ͖Δਓগͳ͍໰୊ • ࠾༻͸೉͍͔͠΋͠Εͳ͍ • εϚϗΞϓϦΤϯδχΞ͕ͦ΋ͦ΋গͳ͍ • ϝϯς͕͍ͭ·ͰͰ͖Δͷ͔໰୊ • ઃܭྲྀߦͷ͍Ε͔ΘΓ • ݸਓ։ൃͷϓϥάΠϯͷαϙʔτظؒͳͲ • ͓٬͞Μ͕஋੾ͬͯ͘Δʢ͜ͱ͕͋Δʣ໰୊ 

ͱ͸͍͑ • खܰʹখ࢝͘͞ΊΔͷʹ͸ҙ֎ͱΑ͍؀ڥ • ωΠςΟϒ։ൃΛࠓ͔ΒֶͿΑΓ΋ָ͔΋͠Εͳ͍ 

ઌ೔ొ৔ͨ͠Flutter 2ʹ͍ͭͯ • iOS/Android/WebҎ֎ʹɺWindows/macOS/LinuxΛαϙʔτ • Null Safety͕ಋೖ • ࣮ಋೖ͸͠͹Β͘଴ͬͨํ͕Α͍͔΋ • ࢖͍ͬͯΔϓϥάΠϯ͕Flutter 2ʹରԠ͔ͯ͠Β͕໨҆