1st IO Experience And Bright Kotlin Future

Rene Tsai
第 45 回 Android Developer 讀書會
https://www.meetup.com/ja-JP/Taiwan-Android-Developer-Study-Group/events/261557487/

1. 1st I/O Experience And Bright Kotlin Future
2. Hello! I am Rene • Android Developer @LINE Responsible for App/SDK related projects You can find me at @rene.tsai.tw 2
3. Agenda Google I/O Experience Kotlin: State of Development Q & A
4. 1.Google I/O 19 The very first time... 4
5. 1,150 5 7,200 50 B 2.5 B
6. 6 I/O Conference - May 7-9 - Shoreline Amphitheatre in Mountain View, CA - Sessions - Sandboxes - Codelabs & Office Hours - Community - Foods / Snacks / Concerts
10. 10 LINE
11. Sandboxes
12. 12 Assistant Sandbox
13. 13 Assistant Sandbox
14. 14 Assistant Sandbox • Origami ◦ https://youtu.be/h77XnsAq0ek?t=5m8s • Local Home SDK demo ◦ https://youtu.be/h77XnsAq0ek?t=8m6s • Open Cookie Jar ◦ https://youtu.be/h77XnsAq0ek?t=10m26s
15. 15 AR Sandbox Coffee Machine Tutorial Explore I/O
16. 16 AR Sandbox 360-degree youtube video tour in Jakarta Interactive Garden
17. 17 ML + AI Sandbox
18. 18 ML + AI Sandbox TensorFlow demo https://youtu.be/-UxznOwwS6A
19. 19 Other Sandboxes Flutter Android Auto CD demo
20. Pre-I/O
21. Diversity Event 21
22. Diversity Event 22
24. 24 My thoughts... - Not very impressive - Old wine in a new bottle - Unpalatable lunch box & dinner - Feel the vibe - Network & make new friends - Broaden horizons
25. More Sharings • First experience and takeaways of Google I/O 2019 • New Android OS User Interface • Kotlin Under the Hood • Android Fireside Chat • …... 25
26. 2.Kotlin State of development 26
27. Google Officially Favors Kotlin Over Java 27
28. Kotlin Census 2018 4,300 developers(not just Kotlin users) December 2018 ~ March 2019 link
29. Kotlin 1.0 Kotlin as a first-class language for Android Google I/O Over 96,000 repositories on Github 1.5M+ users Kotlin as official primary language for Android Google I/O 2016 2017 2018 2019 29 Kotlin Usage
33. 33 Which flavor of Kotlin do you use? 67% 57% 8% Kotlin/JVM Kotlin/Android Kotlin/JS Kotlin/Native 8%
34. 34 Which JDK version(s) do you develop for? JDK 11 JDK 10 JDK 9 JDK 8 JDK 7 JDK 6 I don’t know 27% 8% 8% 84% 11% 6% 3%
35. 35 Which Android versions do you develop for? 75% Pie 82% Oreo 78% Nougat 75% Marshmallow 69% Lollipop 42% KitKat Jelly Bean I don’t know 20% 4%
37. 37 2 types: 25% 3 types: 15%
42. 42 Demography
43. 43 86% 25% 20% 12% 5% 3% 3% 3% 2% 1% 1% 2% Programmer / Software Engineer/ Developer Software Architect Project Lead / Team Lead Student Systems Analyst / Engineer CIO / CEO / CTO UX / UI designer Teacher / Professor Data analyst / Data scientist Data Architect / DBA QA Engineer Other What is your job role(s)? Demography
44. 44 Demography
45. And more...
48. Wrap up 48 1 Prim ary Language on A ndroid 2 Resource Keeps G row ing 3 Continue to G row in Popularity
49. Thanks! Any questions? You can find me at: • @rene.tsai.tw • rene.tsai.tw@gmail.com 49
50. Hiring Now! 50 • Front-End Engineer • Server-Side Engineer • QA Engineer