Modern Android Development

Modern Android Development class at Geeky Base (04/03/2018)

Transcript

1. M O D E R N A N D R O I D D E V E L O P M E N T W E R O C K S TA R
2. Modern? Blockchain 3D Printing IoT AI Disrupt Innovation Thailand 4.0 Digital Transformation Anonymous Car (Driverless card)
3. Modern? - Kotlin language - Constraint Layout - Performance Matter (UI) - RxJava2 - Dependency Injection with Dagger2 - Unit Test with JUnit and Mockito - UI Test with Espresso - Automate Deploy with Fastlane - Monitoring
4. KOTLIN Production-ready From startup to Fortune 500 companies
5. KOTLIN
6. KOTLIN (1.2) achievement - Official language for android - More than 17% project in android studio 3.0 - Support Spring 5.0 - Gradle Kotlin DSL - Support JVM, JS, Native**
7. KOTLIN ADOPTION
8. Create Project
9. Design layout by traditional way (layout) Linear Layout Relative Layout Frame Layout Percent Relative Layout - Deprecated in 26.1.0
10. Constraint Layout
11. Constraint Layout A series of constraint
12. Constraint Layout A chains of constraint A ratios of constraint A guidelines of constraint
13. Why Constraint Layout? Let start to next topic
14. Workshop - Constraint layout
15. Workshop - Constraint layout implementation 'com.android.support.constraint:constraint-layout:1.0.2'
16. XML Code - Constraint layout layout_constraint<SOURCE_SIDE>_to<TARGET_SIDE>= “<TARGET_ID>”
17. Performance Matter - User Interface Performance
18. User Interface - Performance Main topic for better rendering performance - Frame rate, Our goal is to maintain 60 FPS - Overdraw - View Hierarchy Screen is refresh every 16 ms (1 s/60 fps = 16 ms per frame)
19. Example from Google https://android-developers.googleblog.com/2017/08/understanding-performance- benefits-of.html
20. 3 phases drawing process of View Measure (onMeasure) - How big (Size) Layout (onLayout) - How position (Position) Draw (onDraw) - How draw
21. View Hierarchy - Constraint layout Layout Inspector
22. View Hierarchy - Traditional layout Layout Inspector
23. Measure / Layout Measure / Layout (unit: ms, average of 100 frames)
24. Hierarchy Viewer
25. Overdraw White - No overdraw Blue - 1x overdraw Green - 2x overdraw Light red - 3x overdraw Dark red - 4x or more overdraw
26. Memory - Performance Main topic for better memory performance - Garbage collection - Runtime (Dalvik, ART) - Memory Leak - References (Normal, Soft, Weak, Plantom)
27. More and More and More - Networking - Multithread - CPU/GPU - Battery Consumption - ?? - ??
28. Reactive Programming Reactive programming is a general programming term that is focused on reacting to changes, such as data values or events - Ben Christensen
29. Reactive Programming It hard to definition of Reactive Programming Characteristics of Reactive programming - Propagate for change - Data streams (Everything is Stream) - React to change
30. ReactiveX ReactiveX is a collection of open source projects.
31. RxJava RxJava is a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
32. Reactive World
33. Dependency Injection Class should not configure its dependencies statically but should be configure from the outside
34. Dagger2 Dependency Injection framework
35. https://github.com/WeRockStar/ ModernAndroidDevelopment Get Started
36. Get Started
37. Testing on Android R U N O N J V M ( l o c a l u n i t t e s t s ) R E Q U I R E A N D R O I D ( i n s t r u m e n t a t i o n t e s t s ) module-name/src/test/java/. module-name/src/androidTest/java/
38. UI Testing with Espresso
39. UI Testing with Espresso https://google.github.io/android-testing-support-library/ downloads/espresso-cheat-sheet-2.1.0.pdf
40. Apply DI and RxJava
41. Unit Testing If you can write the code, can build, and can test it.
42. Good Unit Testing - No external dependency. - Fast - Repeatable - Indenpendent - Test only one concern - Etc.
43. Tools of Unit Testing - xUnit (JUnit) - Mockito
44. Popular in Android Architecture MVP MVC MVVM Clean Architecture VIPER
45. Refactoring to Simple Pattern V I E W M O D E L P R E S E N T E R A N D R O I D P U R E K O T L I N A N D R O I D
46. Automate Deploy with Fastlane Fastlane is easiest way to automate beta deployments and releases for your iOS and Android apps https://docs.fastlane.tools/getting-started/android/release- deployment/
47. Monitoring
48. Future Read TDD - Test Driven Development Clean Code Continuous Integration Continuous Delivery Refactoring Android Architecture Component WeRockStar