Introduction to Kotlin Multiplatform

This presentation introduces Kotlin Multiplatform (KMP), a powerful framework for cross-platform development. We'll explore what KMP is, its key advantages and potential challenges. The talk will also include personal insights from developing without KMP.

Mobile Dev Japanというイベントで登壇した際に利用した、KMPのイントロダクションについてのスライドです。以下3点について話しています。
1. KMPの概要
2. 利点とチャレンジ
3. KMPを使わずに開発していたときの経験

Transcript

1. ©2024 Wantedly, Inc. Introduction to Kotlin Multiplatform Jul 26, 2024 - Yuya Harada
2. ©2024 Wantedly, Inc. At a tech event in June…
3. ©2024 Wantedly, Inc. Wantedly's Key iOS Tech Stack
4. ©2024 Wantedly, Inc. Wantedly's Key iOS Tech Stack + SwiftUI Kotlin Multiplatform
5. ©2024 Wantedly, Inc. "Why use Kotlin for iOS? Isn't it for Android?" 🤔 🤔 🤔
6. ©2024 Wantedly, Inc. Agenda 1. Explore Kotlin Multiplatform 2. Advantages and Challenges 3. Personal Experience
7. ©2024 Wantedly, Inc. Provide overview of Kotlin Multiplatform My Goal
8. ©2024 Wantedly, Inc. Provide overview of Kotlin Multiplatform if it is worth considering for your projects? 🤔 My Goal
9. ©2024 Wantedly, Inc. Agenda 1. Explore Kotlin Multiplatform 2. Advantages and Challenges 3. Personal Experience
10. ©2024 Wantedly, Inc. "Has anyone here tried Kotlin Multiplatform?" 🙋 🙋 🙋
11. ©2024 Wantedly, Inc. What is Kotlin Multiplatform? Kotlin shared code • Abbreviation: KMP • Tool to build apps with a single Kotlin codebase • Can be shared across platforms App App
12. ©2024 Wantedly, Inc. Share logic and keep the UI native UI • iOS → SwiftUI • Android → Jetpack Compose https://www.jetbrains.com/kotlin-multiplatform/ Logic • KMP
13. ©2024 Wantedly, Inc. Share both logic and UI UI • Compose Multiplatform ⚠ iOS is in Beta https://www.jetbrains.com/kotlin-multiplatform/ Logic • KMP
14. ©2024 Wantedly, Inc. Agenda 1. Explore Kotlin Multiplatform 2. Advantages and Challenges 3. Personal Experience
15. ©2024 Wantedly, Inc. ✅ Share business logic across platforms App App business logic KMP • networking • data storage • data parsing
16. ©2024 Wantedly, Inc. An app that fetches random news data
17. ©2024 Wantedly, Inc. Repository UseCase ViewModel UI An app that fetches random news data
18. ©2024 Wantedly, Inc. Share logic and keep the UI native UI • iOS → SwiftUI • Android → Jetpack Compose https://www.jetbrains.com/kotlin-multiplatform/ Logic • KMP
19. ©2024 Wantedly, Inc. Repository UseCase ViewModel UI An app that fetches random news data
20. ©2024 Wantedly, Inc. Repository UseCase ViewModel UI KMP An app that fetches random news data • SwiftUI • Jetpack Compose
21. ©2024 Wantedly, Inc. Advantages ♻ Code Reusability 🧑🔧 Maintainability ✅ Reducing test burden
22. ©2024 Wantedly, Inc. Challenges 🤖 Requires Kotlin knowledge & IDE 🐘 Familiarity with Gradle 📚 Library limitations
23. ©2024 Wantedly, Inc. Agenda 1. Explore Kotlin Multiplatform 2. Advantages and Challenges 3. Personal Experience
24. ©2024 Wantedly, Inc. Personal Experience Without KMP Team Composition 🧑💻 👨💻
25. ©2024 Wantedly, Inc. Team Composition 🧑💻 👨💻 Platforms Personal Experience Without KMP
26. ©2024 Wantedly, Inc. Team Composition 🧑💻 👨💻 Platforms Development Process Personal Experience Without KMP
27. ©2024 Wantedly, Inc. Challenges Faced iOS • Redundant business logic • Duplicate unit tests Logic UI Local DB Unit Test Android Logic UI Local DB Unit Test Time-consuming development
28. ©2024 Wantedly, Inc. “If I could use KMP, it eliminates redundancy…” 😩😩😩
29. ©2024 Wantedly, Inc. Provide a clear overview of KMP if KMP is worth considering for your projects? 🤔 My Goal
30. ©2024 Wantedly, Inc. https://www.wantedly.com/companies/wantedly/post_articles/913551
31. ©2024 Wantedly, Inc. Thank you for listening!! 🎉🎉🎉