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@aartikov
Created January 10, 2023 21:45
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Decompose DI
class App : Application(), KoinProvider {
override lateinit var koin: Koin
private set
override fun onCreate() {
super.onCreate()
koin = createKoin()
}
private fun createKoin(): Koin {
return Koin().apply {
loadModules(allModules)
declare(this@App as Application)
declare(this@App as Context)
declare(ComponentFactory(this))
createEagerInstances()
}
}
}
/**
* Used to create Decompose components. Creation of components are implemented as extension functions.
*/
class ComponentFactory(private val localKoin: Koin) : KoinComponent {
override fun getKoin(): Koin = localKoin
}
val mainModule = module {
single { SomeDependency1() }
single { SomeDependency2() }
single { SomeDependency3() }
}
fun ComponentFactory.createMainComponent(
componentContext: ComponentContext
): MainComponent {
return RealMainComponent(componentContext, get())
}
fun ComponentFactory.createFeedbackComponent(
componentContext: ComponentContext,
onPositiveFeedbackGiven: () -> Unit
): FeedbackComponent {
return RealFeedbackComponent(componentContext, onPositiveFeedbackGiven, get(), get())
}
fun ComponentFactory.createTheoryComponent(
componentContext: ComponentContext
): TheoryComponent {
return RealTheoryComponent(componentContext, get(), get())
}
interface KoinProvider {
val koin: Koin
}
val Application.koin get() = (this as KoinProvider).koin
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val componentFactory = application.koin.get<ComponentFactory>()
val mainComponent = componentFactory.createMainComponent(defaultComponentContext())
setContent {
AppTheme {
MainUi(mainComponent)
}
}
}
}
class RealMainComponent(
componentContext: ComponentContext,
componentFactory: ComponentFactory
) : ComponentContext by componentContext, MainComponent {
override val theoryComponent = componentFactory.createTheoryComponent(
childContext(key = "theory")
)
override val feedbackComponent = componentFactory.createFeedbackComponent(
childContext(key = "feedback"),
onPositiveFeedbackGiven = {
theoryComponent.unlockBonusTheoryMaterial()
}
)
}
@Drabu
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Drabu commented Apr 4, 2024

How do we set this up in iOS MainViewController?

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