tfcporciuncula

@HiltViewModel
class MyViewModel @Inject constructor(
  private val savedStateHandle: SavedStateHandle,
  // other dependencies
) : ViewModel() {
  ...
}

tfcporciuncula

generate-dependency-graph:
    name: Generate Dependency Graph
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Setup Graphviz
        uses: ts-graphviz/setup-graphviz@v1

tfcporciuncula

// In an activity:
private val presenter by retain { entry ->
  // entry exposes the viewModelScope, savedStateHandle, and a way to listen to onClear()
  MyPresenter() 
}

// Or in a composable, implicitly:
val presenter = retain { MyPresenter() } // this will look at LocalViewModelStoreOwner.current
// Or explicitly:
val activity = ...

tfcporciuncula

actual abstract class ViewModel {
  actual val viewModelScope = MainScope()

  protected actual open fun onCleared() {}

  fun clear() {
      onCleared()
      viewModelScope.cancel()
  }
}

tfcporciuncula

import androidx.lifecycle.ViewModel as AndroidXViewModel
import androidx.lifecycle.viewModelScope as androidXViewModelScope

actual abstract class ViewModel actual constructor() : AndroidXViewModel() {
  actual val viewModelScope: CoroutineScope = androidXViewModelScope

  actual override fun onCleared() {
    super.onCleared()
  }
}

tfcporciuncula

expect abstract class ViewModel() {
  val viewModelScope: CoroutineScope
  protected open fun onCleared()
}

tfcporciuncula

@Qualifier annotation class SpecialGreeting1
@Qualifier annotation class SpecialGreeting2

@Module
@InstallIn(SingletonComponent::class)
object GreetingModule {
  @Provides @SpecialGreeting1
  fun provideSpecialGreeting1(): String = "Heeeeey"

  @Provides @SpecialGreeting2

tfcporciuncula

private let greetingHandler = InjectApplicationComponent()
  .greetingHandlerCreator("assisted arg!")

tfcporciuncula

// iOS source set
interface PlatformComponent {
   @Provides fun IosPlatformGreeter.bind(): PlatformGreeter = this
}

// Android source set
interface PlatformComponent {
   @Provides fun AndroidPlatformGreeter.bind(): PlatformGreeter = this
}

tfcporciuncula

 class MainActivity : ComponentActivity() {
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
-    val greetingHandler = applicationComponent.greetingHandlerFactory.create(assistedArg = "this is an assisted arg")
+    val greetingHandler = applicationComponent.greetingHandlerCreator("this is an assisted arg")