Replace with dagger.android

Transcript

1. REPLACE WITH DAGGER.ANDROID

2. HELLO ABOUT ME Yuji Koketsu @kettsun0123 ▸ Android Developer ▸

   CyberAgent, Inc ▸ ݩ AbemaTV >> ৽نϝσΟΞ

3. REPLACE WITH DAGGER.ANDROID What is dagger.android?

4. WHAT IS DAGGER.ANDROID? DAGGER.ANDROID IS… ▸ Dagger2ͷAndroid֦ுDIϥΠϒϥϦ ▸ v2.10 ▸

   core͕ϦϦʔε ▸ v2.11 ▸ @ContributesAndroidInjector௥Ճ ▸ DaggerApplication௥Ճ ▸ v2.12 ▸ ࠓ࠷৽൛ʂ https://github.com/google/dagger/releases

5. WHAT IS DAGGER.ANDROID? class MainActivity : AppCompatActivity() { lateinit var

   instance: Hoge override fun onCreate(state: Bundle?) { super.onCreate(state) ... } ... }

6. WHAT IS DAGGER.ANDROID? class MainActivity : AppCompatActivity() { @Inject lateinit

   var instance: Hoge override fun onCreate(state: Bundle?) { AndroidInjection.inject(this) super.onCreate(state) ... } ... }

7. REPLACE WITH DAGGER.ANDROID dagger.androidͰஔ͖׵͑Δ

8. REPLACE WITH DAGGER.ANDROID App MainActivity AppModule class Hoge

9. REPLACE WITH DAGGER.ANDROID dependencies { // dagger.android implementation "com.google.dagger:dagger-android:2.12" implementation

   "com.google.dagger:dagger-android-support:2.12" kapt "com.google.dagger:dagger-android-processor:2.12" }

10. REPLACE WITH DAGGER.ANDROID AppComponent.kt @Singleton @Component(modules = arrayOf( AppModule::class ))

    interface AppComponent { fun inject(app: App) fun activityComponent(): ActivityComponent }

11. REPLACE WITH DAGGER.ANDROID AppComponent.kt @Singleton @Component(modules = arrayOf( AndroidInjectionModule::class, AppModule::class

    )) interface AppComponent : AndroidInjector<App> { @Component.Builder interface Builder { fun application(application: App): Builder fun build(): AppComponent } override fun inject(app: App) }

12. REPLACE WITH DAGGER.ANDROID ActivityComponent.kt @Subcomponent(modules = arrayOf( ... )) interface

    ActivityComponent { fun inject(activity: MainActivity) }

13. REPLACE WITH DAGGER.ANDROID ActivityComponent.kt @Subcomponent(modules = arrayOf( ... )) interface

    ActivityComponent : AndroidInjector<MainActivity> { @Subcomponent.Builder abstract class Builder : AndroidInjector.Builder<MainActivity>() }

14. REPLACE WITH DAGGER.ANDROID ActivityModule.kt @Module(subcomponents = ActivityComponent::class) internal abstract class

    ActivityModule { @Binds @IntoMap @ActivityKey(MainActivity::class) internal abstract fun bindMainInjector( builder: ActivityComponent.Builder ): AndroidInjector.Factory<out Activity> } SubcomponentΛModuleͰbind͢Δ

15. REPLACE WITH DAGGER.ANDROID AppComponent.kt @Singleton @Component(modules = arrayOf( AndroidInjectionModule::class, AppModule::class

    )) interface AppComponent : AndroidInjector<App> { @Component.Builder interface Builder { fun application(application: App): Builder fun build(): AppComponent } override fun inject(app: App) }

16. REPLACE WITH DAGGER.ANDROID AppComponent.kt @Singleton @Component(modules = arrayOf( AndroidInjectionModule::class, ActivityModule::class,

    AppModule::class )) interface AppComponent : AndroidInjector<App> { @Component.Builder interface Builder { fun application(application: App): Builder fun build(): AppComponent } override fun inject(app: App) }

17. REPLACE WITH DAGGER.ANDROID class App : Application() { val appComponent

    : AppComponent by lazy { DaggerAppComponent.builder() .appModule(AppModule(this)) .build() } override fun onCreate() { super.onCreate() ... } ... } App.kt

18. REPLACE WITH DAGGER.ANDROID App.kt class App : DaggerApplication() { override

    fun applicationInjector() = DaggerAppComponent.builder() .application(this) .build() override fun onCreate() { super.onCreate() ... } ... }

19. REPLACE WITH DAGGER.ANDROID MainActivity.kt class MainActivity : AppCompatActivity() { @Inject

    lateinit var instance: Hoge override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) application.appComponent.activityComponent.inject(this) ... } ... }

20. REPLACE WITH DAGGER.ANDROID MainActivity.kt class MainActivity : AppCompatActivity() { @Inject

    lateinit var instance: Hoge override fun onCreate(savedInstanceState: Bundle?) { AndroidInjection.inject(this) super.onCreate(savedInstanceState) ... } ... }

21. MORE SIMPLE ΋ͬͱγϯϓϧʹॻ͚·͢

22. MORE SIMPLE @ContributesAndroidInjector Dagger v2.11 ~

23. MORE SIMPLE ActivityComponent.kt @Subcomponent(modules = ...) interface ActivityComponent : AndroidInjector<MainActivity>

    { @Subcomponent.Builder abstract class Builder : AndroidInjector.Builder<MainActivity>() }

24. MORE SIMPLE ActivityComponent.kt @Subcomponent(modules = ...) interface ActivityComponent : AndroidInjector<MainActivity>

    { @Subcomponent.Builder abstract class Builder : AndroidInjector.Builder<MainActivity>() } Component࡞Βͳͯ͘ྑ͍

25. MORE SIMPLE ActivityModule.kt @Module(subcomponents = ActivityComponent::class) internal abstract class ActivityModule

    { @Binds @IntoMap @ActivityKey(MainActivity::class) internal abstract fun bindMainInjector( builder: ActivityComponent.Builder ): AndroidInjector.Factory<out Activity> }

26. MORE SIMPLE ActivityModule.kt @Module(subcomponents = ActivityComponent::class) internal abstract class ActivityModule

    { @Binds @IntoMap @ActivityKey(MainActivity::class) internal abstract fun bindMainInjector( builder: ActivityComponent.Builder ): AndroidInjector.Factory<out Activity> } Subcomponentͷbind΋ॻ͔ͳ͍͍ͯ͘

27. MORE SIMPLE ActivityBuilder.kt @Module internal abstract class ActivityBuilder { @ContributesAndroidInjector(modules

    = arrayOf(...)) internal abstract fun contributeMainActivityInjector(): MainActivity } ͜Ε͚ͩͰSubcomponent͕Ͱ͖Δ

28. MORE SIMPLE @ContributesAndroidInjectorͰγϯϓϧʹ

29. FIN Thanks:)