From Android to multiplatform: When you thought your project was finished​

In this session we are going to walk through the necessary changes to be able to migrate to one platform to multiplatform, reusing most of the code and thus have a unified maintenance of your Android and iOS app. Starting from a complex Android application in MVP (Model View Presenter), we will explain the steps that needs to be taken to adapt the original architecture and support a new iOS application with Swift UI, reusing the business logic on both platforms.

Speakers: Pilar García, Daniel Llanos, Jacobo Conejo

Transcript

1. From Android to multiplatform When you thought your project was finished
2. Team Commit Conf 2023: From Android to multiplatform Daniel Llanos daniel.llanos@worldline.com Pilar García pilar.garciag@worldline.com Jacobo Conejo Lima jacobo.conejolima@worldline.com
3. Commit Conf 2023: From Android to multiplatform “One more sprint and we are ready to go!” “What an easy project, it’s just some maintenance”
4. Two frequent scenarios Two native apps need refactor with limited budget. Complex android app requires expansion to iOS platforms. Commit Conf 2023: From Android to multiplatform
5. How to do more with less? Let’s investigate!🕵🏻🕵🏽🕵🏼
6. The contenders Commit Conf 2023: From Android to multiplatform 🥊 🥊
7. Kotlin multiplatform What is it really?
8. Behaviour and benefits • Better integration with native platforms. • Compatibility with existing libraries and tools. • Modern language. Commit Conf 2023: From Android to multiplatform
9. Hello again! 👋 Commit Conf 2023: From Android to multiplatform
10. EROSKI Club (2019) Commit Conf 2023: From Android to multiplatform Android Impl - Developers improve original app implementation (using "Clean" since 2015) - Fixed some layer dependency problems - New functionalities developed focused on Kotlin Multiplatform. - Development of new multiplatform libraries iOS Impl
11. EROSKI Club (2019) Commit Conf 2023: From Android to multiplatform - Developers improve original app implementation (using "Clean" since 2015) - Fixed some layer dependency problems - New functionalities developed focused on Kotlin Multiplatform. - Development of new multiplatform libraries iOS Impl Common* Impl 2019 features and refactors
12. EROSKI and… Caprabo Club (2019) Commit Conf 2023: From Android to multiplatform Android Impl iOS Impl
13. Eroski and Caprabo Club (Roadmap 2020) Commit Conf 2023: From Android to multiplatform EROSKI needs WL estimation Budget Eroski rejects the budget WL Thinks... KMP: Selling smoke since 2018...
14. Eroski and Caprabo Club (Roadmap 2020) Commit Conf 2023: From Android to multiplatform EROSKI needs with KMM WL estimation Budget Eroski approves the budget
15. Emergenciès: Problems & limitations Commit Conf 2023: From Android to multiplatform • Budget • Android app already implemented. • Complex UI. Android Impl iOS Impl 2021: New platform
16. Implementation Let's go! 👷🏻‍♀️👷🏼‍♂️👷🏽‍♂️
17. Commit Conf 2023: From Android to multiplatform Architecture
18. EROSKI: Project architecture - Layer separation - Android as a basis - MVP Architecture: - XML (Android) - UIKit (iOS) Commit Conf 2023: From Android to multiplatform
19. Eroski and Caprabo Club (Roadmap 2020) Commit Conf 2023: From Android to multiplatform Common logic DEV UAT PRO DEV UAT PRO I am: - Android - DEV - EROSKI I am: - iOS - UAT - Caprabo
20. Commit Conf 2023: From Android to multiplatform 19/06/20
21. Commit Conf 2023: From Android to multiplatform 01/07/20
22. Commit Conf 2023: From Android to multiplatform 11/04/22
23. Emergenciès: Project architecture - Layer separation - iOS Wrapper. - MVP Architecture: - XML (Android) - SwiftUI (iOS) Commit Conf 2023: From Android to multiplatform
24. Emergenciès Commit Conf 2023: From Android to multiplatform
25. Emergenciès Commit Conf 2023: From Android to multiplatform
26. Emergenciès Commit Conf 2023: From Android to multiplatform
27. Emergenciès Commit Conf 2023: From Android to multiplatform
28. Emergenciès Commit Conf 2023: From Android to multiplatform
29. Emergenciès Commit Conf 2023: From Android to multiplatform
30. Emergenciès Commit Conf 2023: From Android to multiplatform
31. Emergenciès Commit Conf 2023: From Android to multiplatform
32. Emergenciès Commit Conf 2023: From Android to multiplatform
33. The future 🚀: Project architecture MVVM -> Compose + SwiftUI Commit Conf 2023: From Android to multiplatform
34. Architecture Commit Conf 2023: From Android to multiplatform
35. Common code (View Models) Commit Conf 2023: From Android to multiplatform
36. Common code (View Models) Commit Conf 2023: From Android to multiplatform
37. Common code (View Models) Commit Conf 2023: From Android to multiplatform
38. Common code (View Models) Commit Conf 2023: From Android to multiplatform
39. Common code (View Models) Commit Conf 2023: From Android to multiplatform
40. Common code (View Models) Commit Conf 2023: From Android to multiplatform
41. Common code (View Models) Commit Conf 2023: From Android to multiplatform
42. Common code (View Models) Commit Conf 2023: From Android to multiplatform
43. Common code (View Models) Commit Conf 2023: From Android to multiplatform
44. Android App Commit Conf 2023: From Android to multiplatform
45. Android App Commit Conf 2023: From Android to multiplatform
46. Android App Commit Conf 2023: From Android to multiplatform
47. Android App Commit Conf 2023: From Android to multiplatform
48. iOS App Commit Conf 2023: From Android to multiplatform
49. iOS App Commit Conf 2023: From Android to multiplatform
50. iOS App Commit Conf 2023: From Android to multiplatform
51. iOS App Commit Conf 2023: From Android to multiplatform
52. iOS App Commit Conf 2023: From Android to multiplatform
53. Results and benefits Show me the money! 📈💸
54. Application performance and efficiency improvements Commit Conf 2023: From Android to multiplatform
55. Reduced maintenance costs Commit Conf 2023: From Android to multiplatform
56. Increased ability to implement new features Commit Conf 2023: From Android to multiplatform
57. Recap Commit Conf 2023: From Android to multiplatform
58. Recap Commit Conf 2023: From Android to multiplatform 2019 Eroski in need of refactor 2020 KMM Refactor Eroski 2021 Emergencies in need of an iOS App 2022 KMM migration + iOS implementation 2022 Architecture needs an update to use Compose and SwiftUI 2022 KMM + MVVM Near future To be continued…
59. We are hiring! Commit Conf 2023: From Android to multiplatform About us
60. Q & A Commit Conf 2023: From Android to multiplatform
61. Thanks a lot! Commit Conf 2023: From Android to multiplatform