1.2.0

Released a new version 1.2.0.

We can inject dependencies using Dagger instead of using @InjectPreference annotation.

Here is the way to migrate Dagger.

1. If you using PreferenceEntity without PreferenceComponent.

  @Provides
  @Singleton
  fun provideInitialEntity(context: Context): Preference_InitialEntity {
    return Preference_InitialEntity.getInstance(context)
  }

  @Provides
  @Singleton
  fun provideSettingEntity(context: Context): Preference_SettingEntity {
    return Preference_SettingEntity.getInstance(context)
  }

1. If you using PreferenceEntity with PreferenceComponent.

1. Add method for injecting an instance of PreferenceComponent to Dagger's Builder.

@Singleton
@Component( ... )
interface AppComponent : AndroidInjector<DaggerApplication> {

  @Component.Builder
  interface Builder {
    @BindsInstance fun application(application: Application): Builder
+   @BindsInstance fun preferenceRoom(prefAppComponent: PrefAppComponent): Builder
    fun build(): AppComponent
  }
}

2. Inject an initialized PreferenceComponent that generated by the compiler.

The most important thing is the appComponent should be initialized lazily or in the onCreate.
Because the Context is null when initializing properties in the Application class.

class MyApplication: DaggerApplication() {

  private val appComponent by lazy {
    DaggerAppComponent.builder()
      .application(this)
+     .preferenceRoom(PreferenceComponent_PrefAppComponent.init(this))
      .build()
  }
}

3. Make entity providing abstract methods in the PreferenceComponent

@PreferenceComponent(entities = [InitialEntity::class, SettingEntity::class])
interface PrefAppComponent {
  // provides entities
  fun initialEntity(): InitialEntity
  fun settingEntity(): SettingEntity

4. Provide instances of the instances on the module.

I just created a new module: PreferenceModule.

@Module
class PreferenceModule {

  @Provides
  @Singleton
  fun provideInitialEntity(prefAppComponent: PrefAppComponent): Preference_InitialEntity {
    return prefAppComponent.initialEntity() as Preference_InitialEntity
  }

  @Provides
  @Singleton
  fun provideSettingEntity(prefAppComponent: PrefAppComponent): Preference_SettingEntity {
    return prefAppComponent.settingEntity() as Preference_SettingEntity
  }
}

5. It's finished. And you can inject dependency using @Inject annotation by dagger.

class SnsViewModel @Inject constructor(
  val initialEntity: Preference_InitialEntity,
  val settingEntity: Preference_SettingEntity
) : ViewModel() {