DI Cybozu Mobile Meetup 20 23 . 1 0 . 27 (@mr_mkeeda)

About me X/Twitter: @mr_mkeeda Github: @mkeeda Android Engineer at Cybozu, Inc kintone AC 6 2

DI (Manual Dependency Injection) 3 rd perty DI 3 class RemoteDataSource { // ... } class Repository( private val remoteDataSource: RemoteDataSource ) { // ... } class Component { private val remoteDataSource = RemoteDataSource() val repository = Repository(remoteDataSource) }

DI https://developer.android.com/training/dependency-injection/ manual 4

:app 5 Class A Class B

:app 6 Component B Class A Class B Component A & & Class B

:app 7 SingletonComponent Class A Class B singleton Component A Application &

:module-b :module-a 8 SingletonComponent Class A Class B singleton Component A :shared

DI 9

:module-b :module-a 10 SingletonComponent Class A Class B singleton Component A :shared

:module-b :shared :module-a 11 SingletonComponent Class A Class B singleton Component A

:shared :module-a 12 SingletonComponent Class A C Component A :module-c Class C Component C Class A singleton

:shared :module-a 13 SingletonComponent Class A C Component A :module-c Class C Component C Class A singleton 🔄

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:shared :module-a SingletonComponent Class A C Component A :module-c Class C Component C Class A singleton 🔄 15 Component

:shared Interface Module B singleton :module-b :module-a 16 SingletonComponent Class A Class B singleton Component A Class A singleton 🔄 Component

:module-b :shared :module-a 17 SingletonComponent Impl Class A Class B singleton Component A Class A singleton Interface Module B singleton Component

DI 18 :module-b :app :module-a SingletonComponent Impl Class A Class B singleton Component A :module-c Class C Component C Class A singleton Interface Module B singleton Interface Module A singleton SingletonComponent

DI Component lateinit, Type cast Component 19

DI Hilt Koin DI DI 
 E 2 E 20

DI DI DI 21

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kintone Android 1 . DI DI 2 . 23