NAVER Android Meet up 발표자료 : Modularization with Dynamic Feature Module

3. Modularization with
Dynamic Feature Module
(feat. App Bundle Tip)
2019.06.25
네이버앱 개발 이강

4. 모듈화란?

5. 네이버에는 현재 수많은 앱들이 존재합니다.

6. 그리고 네이버는 올 해 20주년을 맞이했습니다.

7. App

8. 모듈화.... 왜?

9. 1. Scale

10. App

11. App

13. 2. Maintainability

15. 3. Build Times

20. 4. App Size

22. • On-demand delivery : Out of Beta
• Conditional delivery : New Feature

23. Modularization with
Dynamic Feature Module

24. :app
apply plugin: ‘com.android.application’
:library 1
apply plugin: ‘com.android.library’
:library 2
apply plugin: ‘com.android.library’

25. :app
apply plugin: ‘com.android.application’
:DFM 1
apply plugin: 'com.android.dynamic-feature'
:DFM 2
apply plugin: 'com.android.dynamic-feature'
:app can’t depend
on :DFM1/2

26. :app
apply plugin: ‘com.android.application’
:DFM 1
onDemand=”false”
apply plugin: 'com.android.dynamic-feature'
:DFM 2
onDemand=”true”
apply plugin: 'com.android.dynamic-feature'

27. onDemand=“true”

28. onDemand=“true”

29. onDemand=“true”
80/20

30. :app
:DFM 1 :DFM 2

31. :app
:library :DFM 2:DFM 1

32. :app
:library :DFM 2:DFM 1
:base (core)

33. Navigation

34. :app
:library :DFM 2:DFM 1
:base
(core)
startActivity() val intent = Intent(this, DFM2Activity::class.java)
startActivity(intent)
val intent = Intent(Intent.ACTION_VIEW).setClassName(
PACKAGE_NAME,
FULL_CLASS_NAME)
startActivity(intent)

35. :app
:library :DFM 2:DFM 1
:base
(core)
fun <T> loadClassOrNull(className: String): Class<T>? {
return CLASS_MAP.getOrPut(className) {
try {
Class.forName(className)
} catch (e: ClassNotFoundException) {
return null
}
}.castOrNull()
Intent
return nullable!!
> Dynamic Feature (onDemand)
> Debug Build (doesn’t exist in the flavor)

36. • Jetpack Navigation 지원 예정?

37. Dependencies

38. :app
:search:video
:base
(core)
:news
SearchActivity

39. :search :video:news

40. :base (core)
DataSource
:search :video:news

41. :base (core)
DataSource
:search
:video
VideoDataSource
:news
NewsDataSource

42. :base (core)
DataSource
:search
Set<DataSource>
:video
VideoDataSource
:news
NewsDataSource

43. :base (core)
DataSource
:search
Set<DataSource>
:video
VideoDataSource
:news
NewsDataSource
// :base
Interface DataSourceProvider {
fun getDataSource(context: Context) : DataSource
}
// :news
class NewsDataSourceProvider : DataSourceProvider {
override fun getDataSource(context: Context) : DataSource {
// build dependencies
return dataSource
}
}
// :search
fun dataSource(activity: Activity) : Set<DataSource> {
val dataSources = mutableSetOf<DataSource>()
if (isFeatureInstalled(…)) {
val provider = Class.forName(“…NewsDataSourceProvider”)
.newInstance() as DataSourceProvider
val dataSource = provider.getDataSource(activity)
dataSources.add(dataSource)
}
}

44. :base (core)
DataSource
:search
Set<DataSource>
:video
VideoDataSource
:news
NewsDataSource
// :search
val manager: SplitInstallManager ..
manager.registerListener(listener)
val listener = SplitInstallStateUpdatedListener { state ->
if (SplitInstallSessionStatus.INSTALLED == state) {
// module was installed
val newDataSource = getDataSource( … )
registry.add(newDataSource)
}
}
onDemand=“true”로
아직 다운로드 전이라면?
• ServiceLoader
• Dagger

45. • 모듈화에 정답은?
• 그렇다면 모듈화는 정말로 해야하는가?

46. App Bundle 적용기

47. • App Bundle의 적용 자체는 간단하지만
이후 검증 및 배포 프로세스의 변경 필요

48. • Google Play Console upload track?
1) Production Track
2) Beta Track
3) Internal Test Track

49. • Google Play Console upload track?
1) Production Track
2) Beta Track
3) Internal Test Track
4) Internal Sharing

52. • Internal Sharing 참고사항
1. 설치하려는 단말의 Play Store 설정에서
‘내부 앱 공유’ enable
2. signing : Google Internal Key
Ø 기존 앱에 업데이트 설치 불가

53. • App Bundle 적용 후 이슈
1) Native Library Crash
• 재현 : App Bundle 설치 > apk sdcard로 이동 > Crash
위 옵션 설정 시 아래 warning 발생하지만 Google 측에 문의한 결과 경고 메시지는 곧 사라질 예정
- The option setting 'android.bundle.enableUncompressedNativeLibs=false' is experimental and unsupported.

54. • App Bundle 적용 후 이슈
2) Resources NotFoundException
- 특정 단말에서 반복적으로 발생 : 앱 진입 불가
- 백업/복구 어플 또는 apk 추출 어플 통해 수동으로 설치하는 경우에 발생
> base.apk 만 설치되고 resource, cpu 등의 split apk는 설치되지 않아 크래시 발생

55. 감사합니다