How To Built Uranow Android App

Transcript

1. How To Built Uranow Android App 2018.02.13 Toru Furuya
2. Agenda 1. Project Overview 2. Application Overview 3. Development Rule 4. Future Expectation
3. Project Overview
4. Project Overview • 2017/11/Mid - 2018/02/09 (About 3 months) • 3 - 4 Members (One was super begineer in Android (It’s me!!!)) • iOS App was released in advanse • 30min Sprint Planning once a week
5. Application Overview
6. Application Overview • Overall Transition Diagram • Architecture • Dependencies • In App Billing
7. Login Column Forune Notification Billing
8. Architecture Controller View Controller Model + Infra?
9. Architecture • Activity/Fragment → API Client • Pure? MVC Architecture • What is Layered Architecture? Is it tasty?
10. Dependencies • Kotlin v1.1.51 • Retrofit2 • Okhttp3 • RxJava • RxLifecycle • Butterknife • Glide • Spotlight
11. Retrofit2, Okhttp3
12. Retrofit2, Okhttp3
13. RxJava, RxLifecycle
14. RxJava, RxLifecycle onSuccess onError
15. In App Billing • Play Billing Library • version 1.0 released @2017/10/18 “ The Play Billing Library is written in Java and provides convenience classes and features, which you can use to implement in-app billing into your Android apps. The library is a wrapper for the Android Interface Definition Language (AIDL) file that defines the interface to the In-app Billing service. ”
16. Development Rule
17. Development Rule • Variables Naming Rule • Activity Creating Rule • Fragment Creating Rule • View-Binding Rule • Code Formatting Rule
18. Variables Naming Rule • Don’t use “m” and “s” prefixes • Don’t define static vars which isn’t final
19. View-Binding Rule • Use at least one Fragment for each Activity • Activity doesn’t hold View subclasses, Fragment does instead • Don’t use by lazy in Fragment, but use Butterknife ◦ unable to clear cached views in a Fragment’s onDestroyView() ◦ Pros/cons of Android view access strategies ◦ FragmentでKotlinのby lazyを使ってfindViewByIdするとレイアウト反映できない &リークする件
20. • Follow the ktlint rule (Refer to My Previous Presentation about ktlint) • We have to do ktlint Formatting before commit (All we need to do is to type below command) • Otherwise, Mr. Jenkins criticizes your code which isn’t follow the rule Code Formatting Rule
21. Future Expectation
22. Future Expectation • Layered Architecture (or Alternatives) • More Reactive Programming • Lint Rule Customization with ktlint
23. Next Theme Android Architecture Components Fin
24. FYI - carbon