How to be a better Android Developer

Android Taipei , April 2016

Transcript

1. Agenda • How to be a better Android developer • Working Remotely
2. How to be a better Android developer
3. Topics • Work with legacy code - Refactor • Write new code - Architecture • Re-inventing Wheels - Open Source Library • Learn and grow - Nevin’s Choice
4. Not rewrite Refactor
5. Refactor • For - Performance, Maintenance , Flexibility • When - Fix bug, add feature, code review • How - Write Test First • Books : working effetely with legacy code & Refactor
6. Refactor • Long Method • Highly Coupled
7. Bad smell • Long Method • if condition • switch statement • too many comment • for loop
8. Testing • Unit Test • Instrumentation / Integration Test
9. Espresso • https://caster.io/episodes/episode-1-android- testing-getting-started-with-espresso-2-0/ • Test Runner • Rule • TDD
10. Adding a indirect layer Architecture
11. Architecture • Why extra layer? • Find bugs easily • Fix bug easily • Add feature easily • Reduce bug / regression
12. Architecture • To enable sharing of logic • To explain intention and implementation separately • To isolate change
13. Architecture • No architecture • MVP • Clean Architecture • Redux
14. Package Structure • Package by component • Activity / Fragment • Network • Utils.. • Package by feature • Add note • List note • View note detail
15. MVP • Model View Presenter • Model • View • Presenter
16. MVP • Class Diagram • Sequence Diagram • Case Study - Code Review Live
17. Clean Architecture
18. Redux / Flux
19. Architecture • MVP • Clean Architecture • Redux / Flux
20. Joy to the world Open Source Library
21. Re-Inventing Wheel • Design support / AppCompat library • Butterknife • Dagger • Retrofit • Picasso • rxJava (rxRelay,rxAndroid) • Retrolambda • Realm
22. Re-Inventing Wheel • Install Code Snippet • Usage
23. In your commute, when you do the dishes Nevin’s Choice
24. Learn & Grow • Android Weekly • Fragmented Podcast • Testing • Refactoring • Paid Training • Classic books
25. Sample Repo • u2020 • android-testing • ioschec
26. Classic Books • Refactoring • Effective Java • The Mythical Man Month • Apprenticeship Patterns • Joel On Software / More … • Rework
27. Bonus: Things I wish I knew • Learn a different language / paradigm • Read Android Source Code instead of SO • Join Conferences and Meetups • Conduct Public Speaking ( Conference oriented learning)
28. 犢অమ蚤य़疑藯扖 犢మᥝ藯 ̿౯অమ褛౯ᇁᇁૡ֢̀ 薥ৼ݋珿絑ह 籧蝨Top Developer 磧మᥝ蝱݄ጱૡ֢肬䁰
29. Working Remotely and make your family happy http://fragmentedpodcast.com/episodes/036/
30. Benefit - for employee • Remote developers love their job (Stackoverflow developer survey 2016 ) • Commute - Free • More control in life
31. Benefit - for employer • Bigger talent pool • You help the world • 37 Signal
32. Tips • Communicate 4 times harder • Networking • Growth • Source : remoteok.io , angelist.co
33. How? • Its all mental.
34. Nevin Chen http://nevinchen.com