Dagger2QualifiedCoroutineScope.kt

@Qualifier  
annotation class MainCoroutineScope  
  
@Module  
object CoroutineScopeModule {  
  
  @Provides  
  @MainCoroutineScope  
  fun provideMainCoroutineScope(): CoroutineScope = CoroutineScope(Job() + Dispatchers.Main)
  
}  
  
class ProgressIndicator @Inject constructor(  
  @MainCoroutineScope  
  private val coroutineScope: CoroutineScope  
) {   
  ...   
}