The Zen of Kotlin by Vincent Carrier

Transcript

1. The Zen of Kotlin By Vincent Carrier
2. Follow along https://github.com/Vincent-Carrier/Omego.git
3. Simple rules, infinite possibilities • Take turns to place stones • If one of your group is surrounded by the other, it is captured • The player with the most territory wins
4. Less code is more
6. with()
7. Without with()
9. apply()
10. Without apply()
11. Good code documents itself
12. Local functions
14. Extension functions and lambdas with receivers Within my AppCompatActivity:
15. Custom getter functions
16. Type aliases
17. Type aliases
18. Don’t expose more than you should
19. lateinit vs by lazy
20. package visibility does not exist in Kotlin • package limits visibility to enclosing folder. internal limits visibility to enclosing module. • Get comfortable with modules!
21. Why modules? • Encourages better code structure • Easier to distribute and reuse • Compiles faster • Convert to an Instant App easily THIS IS GRADLE. IT’S A BUILD SYSTEM FOR THE JVM THAT WORKS THROUGH A BEAUTIFUL DIRECTED ACYCLIC GRAPH MODEL.
22. Module types • Phone & Tablet • Android Library • Java Library • And more…
23. build.gradle (Project) Define some common dependencies to avoid having to repeat ourselves too much
24. build.gradle (model) build.gradle (app)
25. Thank you for listening