Android Framework Code Readingのしおり ver 1.2

Android Framework Code Readingのしおり ver 1.2

Transcript

1. Android Framework

   Code Readingͷ͓͠Γ
   ver 1.2
   

   View Slide

2. ໨ඪ
   

   View Slide

3. ໨ඪ
   • ಡΈ࢝ΊΔʹ͸Ͳ͔͜Β୳ͤ͹͍͍ͷ͔Θ͔Δ
   • Android Frameworkͷίʔυ͕ͳΜͱͳ͘

   ಡΊΔΑ͏ʹͳΔ
   • ΋͏Androidා͘ͳ͍ (ʆŋωŋ´)
   

   View Slide

4. ༻ҙ͢Δ΋ͷ
   

   View Slide

5. ༻ҙ͢Δ΋ͷ
   • ͓޷ΈͷEditor
   • OpenGrok
   • https://sites.google.com/site/devcollaboration/codesearch
   • ΫιίʔυಡΜͰ΋Ί͛ͳ͍ؾ࣋ͪ
   • جຊ͜Ε͚ͩ
   

   View Slide

6. ಡΈ΍͍͢؀ڥΛ࡞Δ
   • FirefoxͷπϦʔܕλϒͱ͍͏֦ு͕Φεεϝ
   • https://addons.mozilla.org/ja/firefox/addon/
   tree-style-tab/
   • ಡΜͰ͍Δίʔυͷϝιουݺͼग़͠ͷ֊૚
   ͱ͔؅ཧ͠΍͍͢
   

   View Slide

7. ಡΈ΍͍͢؀ڥΛ࡞Δ
   ͜Μͳײ͡ʔ
   

   View Slide

8. OpenGrok
   

   View Slide

9. OpenGrok
   • ιʔείʔυΛϒϥ΢βͰӾཡͰ͖Δ΋ͷ
   • method΁ͷϦϯΫͱ͔షͬͯ͋ͬͯศརʂʂ
   • Androidͷιʔείʔυ΋OpenGrokԽͯ͋͠Γ·͢
   • ιʔείʔυखݩʹͳͯ͘΋ಡΊͯศརʂʂ
   

   View Slide

10. OpenGrokʹ׳ΕΔ
    

    View Slide

11. OpenGrokʹ׳ΕΔ
    • Full SearchΛࢦఆ͢Δ
    • File PathΛࢦఆ͢Δ
    • جຊ্̎ͭͰ͍͍ͩͨOK
    • ࠔͬͨΒHelpΛݟͯ࢖͍ํΛϚελʔ͢Δ
    • http://tools.oesf.biz/android-6.0.0_r1.0/help.jsp
    

    View Slide

12. खݩʹίʔυΛμ΢ϯϩʔυ͢Δ
    • શ෦ͷιʔείʔυΛμ΢ϯϩʔυ͢Δͷ͸େม
    • OpenGrok͔ΒFile୯ҐͰμ΢ϯϩʔυͰ͖Δ
    • Α͘ࢀর͢ΔϑΝΠϧ͸μ΢ϯϩʔυ͓ͯ͘͠ͱศར
    • URLͷxrefͱrawʹͯ͠ΞΫηε͢ΔͱBrowser

    ܦ༝Ͱμ΢ϯϩʔυͰ͖Δ͸ͣ
    

    View Slide

13. खݩʹίʔυΛμ΢ϯϩʔυ͢Δ
    http://tools.oesf.biz/android-6.0.0_r1.0/xref/
    frameworks/base/core/java/android/app/Activity.java
    http://tools.oesf.biz/android-6.0.0_r1.0/raw/frameworks/
    base/core/java/android/app/Activity.java
    

    View Slide

14. ҙ֎ͱखݩʹ͍࣋ͬͯΔιʔείʔυ
    • Android SDK Manager͔ΒऔಘͰ͖Δ΋ͷ
    • /Applications/Android Studio.app/sdk/sources
    • /Applications/Android Studio.app/sdk/extras/
    android/support
    • /Applications/Android Studio.app/sdk/extras/
    android/m2repository/com/android/support
    

    View Slide

15. खܰʹಡΊͦ͏ͳͱ͜Ζ
    • frameworks/
    • Android Frameworksશൠͷίʔυ
    • frameworks/base/core/java/
    • Android SDKશൠͷίʔυ
    

    View Slide

16. खܰʹಡΊͦ͏ͳͱ͜Ζ
    • packages/apps/
    • γεςϜΞϓϦશൠͷίʔυ
    • http://tools.oesf.biz/android-6.0.0_r1.0/xref/
    packages/apps/Settings/
    • SettingsΞϓϦͷίʔυ(Φεεϝʂ)
    

    View Slide

17. ໾ʹཱͪͦ͏ͳϦϯΫ·ͱΊͯ·͢
    https://github.com/AndroidFrameworkCodeReading/
    Android-Framework-Code-Reading
    

    View Slide

18. GopenGrok
    https://github.com/operando/gopen-grok
    ίϚϯυϥΠϯ͔ΒOpenGrokͷ

    ݕࡧ͕Ͱ͖Δπʔϧ
    

    View Slide

19. GopenGrok
    https://github.com/operando/gopen-grok
    $ gopen-grok -s Activity
    

    View Slide

20. GopenGrok
    https://github.com/operando/gopen-grok
    

    View Slide

21. GopenGrok Install
    https://github.com/operando/gopen-grok
    $ go get -d github.com/operando/gopen-grok
    $ go install github.com/operando/gopen-grok
    

    View Slide

22. LogcatٯҾ͖
    

    View Slide

23. LogcatٯҾ͖
    • LogcatʹྲྀΕ͍ͯΔϩά͸ίʔυ্ʹ

    ॻ͍ͯ͋Δ͸ͣ(ಈతͳ΋ͷҎ֎
    • ௐ΂͍ͨػೳͬΆ͍΋ͷ͕ྲྀͯ͠ΔLogcat͔Β
    ಛఆͷΩʔϫʔυͰݕࡧΛ͔͚Δ
    

    View Slide

24. LogcatٯҾ͖
    • ྫ͑͹ɺҎԼͷϩάͷgetDirectorySizeͬͯͲ
    ͏΍ͬͯௐ΂ͯΔ͔஌Γ͍ͨʂͱͯ͠…
    

    View Slide

25. LogcatٯҾ͖
    • ͡ΌͱΓ͋͑ͣʮgetDirectorySizeʯͬͯ

    ΩʔϫʔυͰOpenGrokݕࡧ͢Δ
    

    View Slide

26. ʮgetDirectorySizeʯͷݕࡧ݁Ռ
    ݟࣄʹͦΕͬΆ΋ͷ

    Ҿ͔͔ͬͬͨ
    

    View Slide

27. ίʔυΛݟΔͱ͜Μͳײ͡
    • IMediaContaninerServiceͶʔ΁ʔ
    • LogcatʹྲྀΕͯͨͷ͸ 438ߦ໨ͷ΍ͭ
    

    View Slide

28. LogcatٯҾ͖
    • ͏·͘ώοτ͢Ε͹࠷ߴͷٕ
    • Ͳͷϩά͕ྑͦ͞͏͔ݟۃΊΔͷ͸৬ਓٕ
    • LogcatʹྲྀΕ͍ͯΔϝοηʔδ͕੩తͳ΋ͷ͔
    ಈతͳ΋ͷ͔൑அ͢Δͷ͸৬ਓٕ
    

    View Slide

29. ·ͱΊํ
    

    View Slide

30. ͋ͱͰݟฦ͢Α͏ʹ͜͏ॻ͘ͱ͍͍͔΋
    λΠτϧ

    ݟग़͠
    

    View Slide

31. ͋ͱͰݟฦ͢Α͏ʹ͜͏ॻ͘ͱ͍͍͔΋
    Θ͔ͬͨ͜ͱΛ

    Օ৚ॻ͖
    

    View Slide

32. ͋ͱͰݟฦ͢Α͏ʹ͜͏ॻ͘ͱ͍͍͔΋
    ॏཁͳͱ͜Ζ͸

    ίʔυͷURLͱ࣮ࡍͷίʔυΛ

    ίϐϖͯ͠ॻ͍͓ͯ͘
    

    View Slide

33. ͋ͱͰݟฦ͢Α͏ʹ͜͏ॻ͘ͱ͍͍͔΋
    • Markdownͱ͔Ͱద౰ʹॻ͘
    • ίʔυͷURL͸ΊͬͪΌେࣄ
    • ॻ͍ͨΒGithub΍Gistʹஔ͍͓ͯ͘ͱ

    ݕࡧ΋Ͱָ͖ͯ
    

    View Slide

34. JobScheduler-Code-Reading
    https://github.com/operando/JobScheduler-Code-Reading
    ·ͱΊํͷࢀߟʹͲ͏ͧʔ
    

    View Slide

35. Thanks!!
    

    View Slide