Advance Android

Transcript

1. Advance Android @ D•Labs
2. MVP • Moved from MVC to MVP • Decouples business logic from UI • Simplifies testing
3. Dependency Injection • Forces better code structure • Simplifies testing • Dagger (annotation processing)
4. Wandera Object Graph
5. Functional Reactive Programming • RxJava • Asynchronous Dataflow Programming • Building blocks of functional programming • + more
6. Wandera Authentication Process
7. Wandera Authentication Process
8. Networking • OkHttp HTTP client • HTTP / 2 & SPDY • Drop in replacement for HttpUrlConnection and Apache HttpClient • Retrofit in combination with RxJava
9. EventBus • Publish subscribe pattern • Decouples code and preserves ability to communicate
10. No Fragments • Nobody understands fragments • Using custom views instead
11. Tooling
12. Gradle • Official Android build system • Task dependency graph • Easily expandable
13. Travis CI • Runs on every push and PR • Only one Android version at the moment • Unit & functional test + static code annualises + stress tests • Reports uploaded on Amazon S3 bucket
14. Android Check Plugin • Gradle testing plugin for Android • Static code analasies (PMD, Checkstyle, Findbugs, Lint) • Unit and functional tests • Deploy to Amazon S3, Crashlytics Beta & Google Play store • Notifications on HipChat • Push to Git remote
15. Memory Monitor • In development • Tracks app memory consumption while running • HTML & hprof report
16. Artifactory • Repository manager (maven repos) • Hosts all internal libraries • Project has no sub-projects • Modular and sharable code
17. Command Line Tools • Common app actions • Used for development
18. Build Types Production Debug Staging Mock
19. Release Build Type • Minimisation, Obfuscation & Optimisation • Production API endpoint • Logging levels • Analytics & crash reporting
20. Debug Build Type • Only for development • Adds additional functionalities • No obfuscation, minimisation & optimisation • Strict Mode
21. Mock Build Type • No emulator support from Samsung for Android 16 and above • Running on non Samsung devices • Mocks internal Samsung APIs • Customised Samsung SDK jar
22. Samsung APIs public final class DevicePolicyManager {
 
 public final boolean isAdminActive(ComponentName who) {
 throw new RuntimeException("Stub!");
 }
 
 }
23. Samsung APIs public class DevicePolicyManager {
 
 public boolean isAdminActive(ComponentName who) {
 return false;
 }
 
 }
24. Dev Flavor • In Progress • For all Build Types • Only Android Lollipop • Faster build and deploy process
25. Debug drawer • Thin layer between System and App • Not included in production builds • Basic build and device information
26. Networking • Log levels • Changing endpoints • Mock endpoints • delay • error rate
27. Status update • Manually trigger status update • Last successful status update • Error count
28. Mock location • Mock location provider for whole system • Only on development devices • KML support still missing
29. Animations • In progress • Change animation duration on the fly • Disable animations completely 29
30. Monkey friendly boolean provideIsMonkey() {
 return ActivityManager.isUserAMonkey();
 } • Adjusted behaviour for monkeys • Using mock api endpoint • Less UI validations • No debug drawer
31. In Progress
32. Dependency Locking • CI handles library updates • No dynamic library versions • Limited to minor version updates • Limitations with Circle CI
33. Multi Module Structure Wandera App
34. Multi Module Structure Wandera App Wandera Debug Wandera Base
35. Dagger 2 • Developed by Google • Uses annotation processing • No reflection • Experimental support in Wandera
36. Looking Into
37. Jack & Jill • New Android tool chain • No annotation processing support (yet) • Built in proguard support • Faster builds
38. Buck • Gradle Alternative • Opensource, developed by Facebook • Faster than Gradle (for now) • Missing some features
39. Circle CI • Travis CI alternative • Beta support for Android and iOS • Supported by Android Check Plugin • Pros and cons compared to Cricle CI
40. Questions?