Sony-DroidKaigi2026

Transcript

2. 53.1 %
3. 2x bet on early frameworks
4. 93.9 %
6. 2021 2022 2023 2024 2025
7. 2021 2022 2023 2024 2025
11. KMP REACT NATIVE For Biz logic For UI
13. Android Studio Obj-C Xcode VSCode
15. The ReactNative TAX
16. g Kotlin Typescript Objective-C 53.1% 17.2% 50% Swift 14.7% Others 13.0% 2% 100%
17. but…
18. new tech = risk?
20. how?
21. ACT II Small bets BIG Moves
22. 01 Experiment first 02 Bet asymmetrically まず実験する ⾮対称に賭ける 03 Build a boundary 境界を作る
24. Hardware
25. Platform Background execution
27. 2 week checkpoints
28. working software
30. Fallback The bet
31. we chose alpha
32. InvalidMutabilityException
33. Main-Thread
34. No issues in production
35. Lesson 1 Don’t ask to adopt ask to experiment 導入の前に、まずは実験
36. 01 Experiment first 02 Bet asymmetrically まず実験する ⾮対称に賭ける 03 Build a boundary 境界を作る
37. 01 Experiment first 02 Bet asymmetrically まず実験する ⾮対称に賭ける 03 Build a boundary 境界を作る
38. 2023 + J2ObjC + Native KMP + RN
39. source: http://blog.jetbrains.com/kotlin/2023/05/compose-multiplatform-for-ios-is-in-alpha/
40. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
41. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
42. 2023 2024 ✅ Aug Dec Jan Feb Mar Apr May Jun ... Oct
43. Fallback The bet SwiftUI + Jetpack Compose CMP
44. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
45. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
46. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
47. Android
48. iOS
49. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
50. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
51. 2023 Aug Dec 2024 Jan Feb Mar Apr May Jun ... Oct
52. we chose beta
55. Lesson 2 Make the standard your fallback フォールバックとして標準を準備しておく
56. are we done?
57. ? 2021 2022 2023 2024 2025
58. ? 2021 2022 2023 2024 2025
59. 01 Experiment first 02 Bet asymmetrically まず実験する ⾮対称に賭ける 03 Build a boundary 境界を作る
60. 01 Experiment first 02 Bet asymmetrically まず実験する ⾮対称に賭ける 03 Build a boundary 境界を作る
61. J2ObjC + Native KMP + RN + 7 years 2 years HW driven Agile Jenkins CircleCI
62. Domain Driven Design
64. Fallback The bet
65. All comms through boundary 全ての通信は境界を介して行う Keep boundary simple 境界はシンプルに保つ Code: ≤1%. One owner コードは1%以下に
66. 0.2%
67. J2ObjC + Native KMP + RN CMP + Native + J2ObjC + HW driven 8 weeks 8 weeks Jenkins CircleCI Github Actions
68. Lesson 3 Build a boundary don’t rewrite 境界で分けることで書き換えを避ける
69. Don’t ask to adopt. Ask to experiment 導入の前に、まずは実験 Industry standard = your fallback フォールバックとして標準を準備しておく Build a boundary, don’t rewrite 境界で分けることで書き換えを避ける
70. ACT III Results
71. Before Kotlin Typescript Objective-C 53.1% 17.2% 50% Swift 14.7% Others 13.0% 2% 100%
72. Before Kotlin Typescript Objective-C 53.1% 17.2% Swift 14.7% 50% After Kotlin Swift 93.9% Others 13.0% 2% 100% Others 6.0% 0.1%
73. MILLIONS INSTALLS, GLOBALLY, BOTH PLATFORMS
77. C M P + N AT I V E + J2OBJC 8 WEEKS RELEASES
78. source: https://ifdesign.com/en/winner-ranking/project/sony-sound-connect/758473
81. we made a boundary 境界で分けたから we kept a way back 戻れるようにしたから we started small 小さく始めたから
83. what is your small bet? あなたの⼩さな賭けは、何ですか
84. Small bets. BIG moves. ⼩さく賭けて、⼤きく動かす