MainActivity.kt

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        // Create view model that normally would be created in an injection system such as
        // by viewModel, or Dagger, or Hilt.
        // For our purposes of discussion we are just instantiating here as it does not matter
        // where our BusinessLogicCenter (ViewModel) comes from.
        val viewModel = ProductInfoBusinessLogicCenterViewModel()
        setContent {
            ProductInformation(viewModel.productInfo.observeAsState())
        }
    }
}

@Composable
fun ProductInformation(displayObject: State<ProductInfoDisplay?>) {
    displayObject.value?.let {
        Column() {
            Text(
                text = it.productName
            )
            Text(
                text = it.price
            )
        }
    }
}