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Kotlin for Android

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Avatar for sembozdemir sembozdemir
November 27, 2016
Programming
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62

Kotlin for Android

Presented in GDG DevFest Istanbul 2016, GDG DevFest Izmir 2016, HackNBreak 2017

Introducing Kotlin for Android

- Basic Syntax
- Classes and Inheritance
- Null-safety
- Extension Functions
- Higher-order Functions
- Anko DSL

Avatar for sembozdemir

sembozdemir

November 27, 2016
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Transcript

  1. Kotlin for Android Semih Bozdemir [email protected] [email protected] medium.com/@sembozdemir

  2. Kotlin • Programming language for JVM • Made by JetBrains

    • Open-source

  3. Why Kotlin? • Compiles to JVM bytecode • Comes from

    industry • Costs nothing to adopt (One-click Java to Kotlin converter) • Easy to learn • Big community • Readable syntax

  4. Basic Syntax • Functions

  5. Basic Syntax • Functions

  6. Basic Syntax • Local variables(read-only)

  7. Basic Syntax • Local variables(read-only)

  8. Basic Syntax • Local variables(read-only)

  9. Basic Syntax • Local variables(mutable)

  10. Basic Syntax • String templates

  11. Basic Syntax • For Loops

  12. Basic Syntax • For Loops

  13. Basic Syntax • Ranges

  14. Basic Syntax • Type checks and automatic cast

  15. Basic Syntax • When Operator

  16. Basic Syntax • When Operator

  17. Basic Syntax • When Operator

  18. Basic Syntax • When Operator

  19. Basic Syntax • When Operator

  20. Classes and Inheritance • Constructors

  21. Classes and Inheritance • Constructors

  22. Classes and Inheritance • Constructors

  23. Classes and Inheritance • Constructors

  24. Classes and Inheritance • Constructors

  25. Classes and Inheritance • Creating instance

  26. Classes and Inheritance • Creating instance

  27. Classes and Inheritance • Creating instance

  28. Classes and Inheritance • Inheritance

  29. Classes and Inheritance • Inheritance

  30. Classes and Inheritance • Inheritance

  31. Classes and Inheritance • Inheritance

  32. Classes and Inheritance • Inheritance

  33. Classes and Inheritance • Getters and setters

  34. Classes and Inheritance • Data classes

  35. Classes and Inheritance • Object declarations

  36. Classes and Inheritance • Companion object

  37. Classes and Inheritance • Companion object

  38. Null Safety

  39. Null Safety

  40. Null Safety

  41. Null Safety

  42. Null Safety

  43. Null Safety

  44. Extension Functions

  45. Extension Functions

  46. Extension Functions

  47. Higher-Order Functions

  48. Higher-Order Functions

  49. Higher-Order Functions

  50. Higher-Order Functions

  51. Higher-Order Functions

  52. Higher-Order Functions

  53. Higher-Order Functions

  54. Higher-Order Functions

  55. Higher-Order Functions

  56. Higher-Order Functions

  57. Higher-Order Functions

  58. Higher-Order Functions

  59. Higher-Order Functions

  60. Anko

  61. “Let’s code ${kotlin}” bit.ly/todokotlin

  62. Resources • Documentation https://kotlinlang.org/docs/reference/ • Kotlin Koans https://try.kotlinlang.org/koans • Learn

    Kotlin with Keddit https://medium.com/@juanchosaravia/learn-kotlin-while-developing-an-android- app-introduction-567e21ff9664#.2fia7o2zg • Getting started with Android with Kotlin https://kotlinlang.org/docs/tutorials/kotlin-android.html
  63. None
  64. None
  65. None
  66. None