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:)