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Advanced Topics Android

Iñaki Villar
July 01, 2018
Technology
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Advanced Topics Android

Google IO Extended 2018 Bangkok

Iñaki Villar

July 01, 2018
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Transcript

  1. None

  2. Inaki Villar @inyaki_mwc Advanced Android Topics

  3. None

  4. Testing D8/R8 ART

  5. Testing

  6. Android Test • Includes existing libraries • APIs and Kotlin

    • Open Source

  7. • Robolectric 4.0 (alpha) • androidx.test support • Support Espresso

  8. None
  9. None

  10. gradlew clean connectedAndroidTest

  11. gradlew clean connectedAndroidTest gradlew clean test

  12. gradlew clean connectedAndroidTest gradlew clean test

  13. https://proandroiddev.com/robolectric-testing-with-androidjunitrunner-86292bceef25

  14. None
  15. None
  16. None
  17. None
  18. None
  19. None

  20. D8/R8

  21. D8/R8 Kotlin File Java File kotlinc javac class dex apk

  22. D8/R8 Kotlin File Java File kotlinc javac class dex apk

  23. class dex apk

  24. class dex apk

  25. class dex apk

  26. dex

  27. dex

  28. D8/R8 kotlinc javac DX APK < 3.0

  29. D8/R8 kotlinc javac DX APK kotlinc javac DX DX Merging

    APK < 3.0 > 3.0

  30. D8/R8 kotlinc javac Desugar DX 3.0/3.1 APK

  31. D8/R8 kotlinc javac Desugar DX kotlinc javac D8 APK 3.0/3.1

    3.1+ APK

  32. D8/R8 kotlinc javac Desugar DX kotlinc javac D8 APK 3.0/3.1

    3.1+ APK
  33. None

  34. 75% reduced size of MainDexFile Release 56% reduced size of

    MainDexFile Debug 10% reduced time for Debug builds

  35. D8/R8 2nd phase : D8/DX(fully deprecated) - 1 year approx.

    1st phase : D8/DX - 6 months approx. 3rd phase: DX removed from AS

  36. D8/R8

  37. D8/R8 kotlinc javac Proguard D8/DX No R8 APK

  38. D8/R8 kotlinc javac Proguard D8/DX kotlinc javac R8 APK No

    R8 APK

  39. D8/R8 Russia 0 - Spain 3

  40. D8/R8

  41. ART

  42. ART Applications Android Framework ART Native Libraries HAL Kernel

  43. ART Applications Android Framework ART Native Libraries HAL Kernel Dalvik

    Pre Lollipop

  44. ART Dalvik JIT Just In Time AOT Ahead Of Time

  45. ART Dalvik JIT Just In Time AOT Ahead Of Time

    App Run Translate ByteCode to Machine code Less Space Less Memory

  46. ART Dalvik JIT Just In Time AOT Ahead Of Time

    App Install Translate ByteCode to Machine code App Run Faster Better Startup Battery Performance
  47. None

  48. JIT Returns

  49. JIT Returns

  50. None

  51. Memory and Storage Kotlin Cloud Profiles ART

  52. ART

  53. ART

  54. ART

  55. ART Inlining - CheckParameterIsNotNull

  56. ART Inlining - CheckParameterIsNotNull https://blacklenspub.com/inline-function-in-kotlin-adb51b0eab76

  57. Cloud Profiles

  58. Cloud Profiles

  59. None

  60. Testing D8/R8 ART Summary

  61. None

  62. Kotlin for Android Developers https://goo.gl/forms/cJO6To3bgYGOMhMJ2

  63. Inaki Villar ขอขอบคุณ /Thank you @inyaki_mwc