Android Architecture Blueprints

A collection of samples to discuss and showcase different architectural tools and patterns for Android apps

Transcript

1. Android Architecture
   Blueprints
   A collection of samples to discuss
   and showcase different architectural
   tools and patterns for Android apps
   

   View Slide

2. David González
   Software Engineer@ Help Scout - Google Developer Expert
   @dggonzalez
   

   View Slide

3. Jose Alcérreca
   Stephan Linzner
   Natalie Masse
   Mustafa Kurtuldu
   David González
   Jorge Barroso (Karumi)
   Saúl Molinero
   Erik Hellman
   Florina Muntenescu
   Rainer-Lang
   Etienne Caron
   Ubiratan Soares
   Tomasz Rykała
   Andrew
   Brandon Gogetap
   Cesar Augusto Zapata Baldassarri
   Deividi
   Dmitriy Zaitsev
   Duong Quang Son
   Eugen Martynov
   Greg Pearce
   Kiran Rao
   Nikita Kozlov
   Ravindra Kumar
   Samuel Urbanowicz
   Shinya Fukuta
   Yigit Boyar
   h3r3x3
   (you?)
   

   View Slide

4. Beginner Intermediate Advanced
   Target Audience
   

   View Slide

5. Blueprints is an architecture a testing project.
   ● UI Testing as a Spec
   Fast, reliable and hermetic
   ● Decent unit test coverage
   Mockito, MockableAndroidJar, no Robolectric, no powermock
   ● Use Non-UI Android tests
   Test against real implementations, compatibility testing
   

   View Slide

6. A to-do app
   

   View Slide

7. todo-mvp/ - Basic Model-View-Presenter architecture
   todo-mvp-loaders/ - Fetches data using Loaders
   todo-mvp-contentproviders/ - Uses Content Providers
   todo-databinding/ - Uses the Data Binding Library
   todo-mvp-clean/ - Uses concepts from Clean Architecture
   todo-mvp-dagger/ - Uses Dagger2 for Dependency Injection
   todo-mvp-rxjava/ - Uses RxJava for concurrency and data layer abstraction
   dev-todo-mvvm-databinding/ - Model View View Model based on todo-databinding
   dev-todo-mvvm-rxjava/ - Model View View Model based on todo-mvp-rxjava
   todo-mvp-fragmentless/ - Uses Android views instead of Fragments
   todo-mvp-conductor/ - Single Activity + Conductor framework
   todo-mvp-tablet/ - Phone + Tablet version
   Stable
   In development
   External
   In review
   

   View Slide

8. UI Testing as a contract
   

   View Slide

9. View Slide

10. Travis
    

    View Slide

11. circleci
    

    View Slide

12. Firebase Test Lab
    

    View Slide

13. Design decisions
    Flavors (mock/prod)
    Minifier / shrinker
    Fragments
    Simulated network calls
    

    View Slide

14. Blueprints is a collection of samples platform
    for Android devs.
    ● Learning
    ● Outreach/discuss
    ● Base for sample or template for app
    ● GitHub cred ★★★★★
    

    View Slide

15. How to use Blueprints
    

    View Slide

16. Browse on GitHub
    github.com/googlesamples/
    android-architecture
    

    View Slide

17. Compare locally
    Diffs between branches are as
    small as possible
    $ git clone https://github.com/
    googlesamples/
    android-architecture.git
    $ git checkout todo-mvp
    $ git difftool -d todo-mvp-clean
    

    View Slide

18. meld
    

    View Slide

19. View Slide

20. todo-mvp
    

    View Slide

21. todo-mvp-clean
    

    View Slide

22. todo-mvp-contentproviders
    

    View Slide

23. todo-databinding
    

    View Slide

24. Findings Dex method count
    APK size
    IRRELEVANT
    (if you shrink)
    

    View Slide

25. Dex count
    

    View Slide

26. APK size
    

    View Slide

27. View Slide

28. HELP!
    ● Answer questions and reply to issues
    ● Wiki and articles
    ● Create samples (read guidelines!)
    ● Become core maintainer (merge-master)
    

    View Slide

29. Contribution examples
    

    View Slide

30. V2: What is coming
    ● Focusing on underlying patterns
    ○ MVVM, MVC, Redux, Flux…
    ● Other apps, different spec
    ● Improve platform for discussion
    

    View Slide

31. Thank you!
    github.com/googlesamples/android-architecture
    David González
    @dggonzalez
    

    View Slide