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Replace with dagger.android
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Yuji Koketsu
October 25, 2017
Programming
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2.4k
Replace with dagger.android
Yuji Koketsu
October 25, 2017
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Transcript
REPLACE WITH DAGGER.ANDROID
HELLO ABOUT ME Yuji Koketsu @kettsun0123 ▸ Android Developer ▸
CyberAgent, Inc ▸ ݩ AbemaTV >> ৽نϝσΟΞ
REPLACE WITH DAGGER.ANDROID What is dagger.android?
WHAT IS DAGGER.ANDROID? DAGGER.ANDROID IS… ▸ Dagger2ͷAndroid֦ுDIϥΠϒϥϦ ▸ v2.10 ▸
core͕ϦϦʔε ▸ v2.11 ▸ @ContributesAndroidInjectorՃ ▸ DaggerApplicationՃ ▸ v2.12 ▸ ࠓ࠷৽൛ʂ https://github.com/google/dagger/releases
WHAT IS DAGGER.ANDROID? class MainActivity : AppCompatActivity() { lateinit var
instance: Hoge override fun onCreate(state: Bundle?) { super.onCreate(state) ... } ... }
WHAT IS DAGGER.ANDROID? class MainActivity : AppCompatActivity() { @Inject lateinit
var instance: Hoge override fun onCreate(state: Bundle?) { AndroidInjection.inject(this) super.onCreate(state) ... } ... }
REPLACE WITH DAGGER.ANDROID dagger.androidͰஔ͖͑Δ
REPLACE WITH DAGGER.ANDROID App MainActivity AppModule class Hoge
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" }
REPLACE WITH DAGGER.ANDROID AppComponent.kt @Singleton @Component(modules = arrayOf( AppModule::class ))
interface AppComponent { fun inject(app: App) fun activityComponent(): ActivityComponent }
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) }
REPLACE WITH DAGGER.ANDROID ActivityComponent.kt @Subcomponent(modules = arrayOf( ... )) interface
ActivityComponent { fun inject(activity: MainActivity) }
REPLACE WITH DAGGER.ANDROID ActivityComponent.kt @Subcomponent(modules = arrayOf( ... )) interface
ActivityComponent : AndroidInjector<MainActivity> { @Subcomponent.Builder abstract class Builder : AndroidInjector.Builder<MainActivity>() }
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
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) }
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) }
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
REPLACE WITH DAGGER.ANDROID App.kt class App : DaggerApplication() { override
fun applicationInjector() = DaggerAppComponent.builder() .application(this) .build() override fun onCreate() { super.onCreate() ... } ... }
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) ... } ... }
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) ... } ... }
MORE SIMPLE ͬͱγϯϓϧʹॻ͚·͢
MORE SIMPLE @ContributesAndroidInjector Dagger v2.11 ~
MORE SIMPLE ActivityComponent.kt @Subcomponent(modules = ...) interface ActivityComponent : AndroidInjector<MainActivity>
{ @Subcomponent.Builder abstract class Builder : AndroidInjector.Builder<MainActivity>() }
MORE SIMPLE ActivityComponent.kt @Subcomponent(modules = ...) interface ActivityComponent : AndroidInjector<MainActivity>
{ @Subcomponent.Builder abstract class Builder : AndroidInjector.Builder<MainActivity>() } Component࡞Βͳͯ͘ྑ͍
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> }
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> } Subcomponentͷbindॻ͔ͳ͍͍ͯ͘
MORE SIMPLE ActivityBuilder.kt @Module internal abstract class ActivityBuilder { @ContributesAndroidInjector(modules
= arrayOf(...)) internal abstract fun contributeMainActivityInjector(): MainActivity } ͜Ε͚ͩͰSubcomponent͕Ͱ͖Δ
MORE SIMPLE @ContributesAndroidInjectorͰγϯϓϧʹ
FIN Thanks:)