Transformation of Papara Android Project

Let’s take a look behind the scenes of the Android development at Papara

Transcript

1. Transformation of Papara Android Project Let’s take a look behind the scenes of the Android development at Papara February 2022 - December 2024
2. About Me 👋 Emre Tekin 🎓 MIS Graduate – MAKÜ 💼 Senior Android Developer – Papara 💻 9 Years of Experience as an Android Developer https://bento.me/emretekin 1
3. https://bento.me/emretekin
4. Overview Technical Debt 🏗 Refactoring 🔄 Papara Transformation Process 🚀 Conclusion & Benefits 🎯 Questions ❓
5. Technical Debt?
6. In Google We Trust? https://proandroiddev.com/dont-use-livedata-in-repositories-f3bebe502ed3 https://jossiwolf.medium.com/refactoring-from-livedata-to-coroutines-flow-e73b6c59f5ad
7. Refactoring?
11. Refactoring? https://x.com/hizlisayar/status/1861027640313835973 Legacy Code?
12. Refactoring? https://x.com/codeinthehole/status/1029682224713617408 Legacy Code?
13. Code Standard Why? • Code Quality • Team Communication and Collaboration. • Easy Catch Before PR Review How? We integrated KtLint & Detekt tools. We solved Performance, Security, Deprecated Warnings. Added static code static to our precommit process.
14. Code Standard Why? • Code Quality • Team Communication and Collaboration. • Easy Catch Before PR Review How? • We integrated KtLint & Detekt tools. • We solved Performance, Security, Deprecated Warnings. • Added static code analysis to our precommit process.
15. Koin to Dagger Hilt Why? • RuntimeException vs Compile Time Exception • Officially supported and recommended by Google How? We replaced Koin modules with Hilt modules. We tested the whole application in a week by organising two different sessions with Android team.
16. Koin to Dagger Hilt Why? • RuntimeException vs Compile Time Exception • Officially supported and recommended by Google How? • We replaced Koin modules with Hilt modules. • We tested the whole application in a week by organising two different sessions with Android team.
17. Replaced Network Request to Retrofit Why? • Less boilerplate code to write • More code readability • Coroutine for asynchronous operations How? We created a new Network Module We used @Deprecated annotation to keep team at the same point.
18. Replaced Network Request to Retrofit Why? • Less boilerplate code to write • More code readability • Coroutine for asynchronous operations How? • We created a new Network Module with retrofit. • We used @Deprecated annotation to keep team at the same point.
20. Refactoring?
21. Removing Data Binding Why? • Build Times • Code Readability • Testing and Debugging How? We created new Base Fragment. Replaced our Fragment to View Binding. Replaced ViewState to UiModel Classes.
22. Removing Data Binding Why? • Build Times • Code Readability • Testing and Debugging How? • We created new Base Fragment. • Replaced our Fragment to View Binding. • Replaced ViewState to UiModel Classes.
23. Replaced Design Pattern as MVVM Clean Arch. Why? • Separation of Concerns • Improved Testability • Testing and Debugging How? Create new Core ViewModel Replace LiveData to StateFlow/SharedFlow
24. Replaced Design Pattern as MVVM Clean Arch. Why? • Separation of Concerns • Improved Testability • Testing and Debugging How? • Create new Core ViewModel • Replaced LiveData to StateFlow/SharedFlow
27. Migrated to Project Multi Module Why? • Improved Build Times • Separation of Concerns • Reusability • Team Collaboration How? We detached the dependencies under the App folder. We created new Feature Module.
28. Migrated to Project Multi Module Why? • Improved Build Times • Separation of Concerns • Reusability • Team Collaboration How? • We detached the dependencies under the App folder. • We created new feature module for our domains.
32. Started Unit Test Integration Why? • Early Detection of Bugs • Separation of Concerns • Reusability • Team Collaboration How? • We added unit test to our definition of done process. • We integrated SonarQube to measure test coverage and app performance.
34. Refactoring?
35. Migration to Jetpack Compose Why? • Modern, Declarative UI Development • Enhanced Developer Productivity • Better Performance • Customizability and Flexibility • Future-Proof Development How? We created BaseComposeFragment. We replaced Ui Component & Widgets as Compose ui. Used ComposeView and AndroidView to combine work. Did not break navigation system and made compose screens worked via fragments.
36. Migration to Jetpack Compose Why? • Modern, Declarative UI Development • Enhanced Developer Productivity • Better Performance • Customizability and Flexibility • Future-Proof Development How? • We created BaseComposeFragment. • We replaced Ui Component & Widgets as Compose ui. • Used ComposeView and AndroidView to combine work. • Did not break navigation system and made compose screens worked via fragments.
40. Created UI Kit & Framework Repository Why? • Reduced projects build time. • We kept independent tools in one place. • No logic according to any project. How? • Moved common ui components to new ui kit. • Moved common helper kits to framework.
41. Conclusion & Benefits?
42. Conclusion & Benefits? • Crash Free Rate Papara Papara Business Last 7 days: 99.91 Last 7 days: 99.75 Last 90 days: 99.64 Last 90 days: 99.6
43. Conclusion & Benefits? • Crash Free Rate Papara Papara Business Last 7 days: 99.91 Last 7 days: 99.75 Last 90 days: 99.64 Last 90 days: 99.6
44. Team Communication & Collaboration? • Get to know about your team. • Add gamification to your process. • Make determined & efficient PR process. • Don't be selfish, be a team member. • User experience above all.
45. References https://martinfowler.com/articles/is-quality-worth-cost.html https://ardalis.com/when-should-you-refactor/ https://www.youtube.com/watch?v=qX6zmKY4KP0&list=PLWz5rJ2EKKc_L3n1j4 ajHjJ6QccFUvW1u&index=8&ab_channel=AndroidDevelopers https://android-developers.googleblog.com/2021/12/rebuilding-our-guide-to-a pp-architecture.html https://www.youtube.com/watch?v=yGOtTd-l_3E ---- https://chatgpt.com/ https://excalidraw.com/
46. https://bento.me/emretekin Thank You!A Questions ?L emretekinn emre_tekinn