How do we inject runtime arguments into the viewmodel?

What if we wanted to have runtime arguments or other runtime arguments besides SavedStateHandle?

@AndroidEntryPoint
class TasksFragment : Fragment() {

    private val viewModel by viewModels<TasksViewModel>()

    private val args: TasksFragmentArgs by navArgs()

    private val argToInject get() = args.userMessage
....

class TasksViewModel @ViewModelInject constructor(
    private val tasksRepository: TasksRepository,
    @Assisted argToInject:Int,
    @Assisted private val savedStateHandle: SavedStateHandle
) : ViewModel()

@Assisted argToInject:Int isn’t known to Dagger since we can’t annotate argToInject with @Assisted, do we still have to use Assisted Inject by Square or there’s another way?

[dougnazar]

If you primarily want access to the safe args in the view model, you might want to look at https://issuetracker.google.com/issues/136967621. Doesn’t seem to be getting much attention but that seems to be the obvious way to allow safe access from a SavedStateHandle.

[fabioCollini]

Looking at the code it seems that SavedStateHandle uses the fragment’s arguments as defaultArgs so invoking the get method on a SavedStateHandle it’s possible to retrieve the values. It’s not documented so I am not sure if it’s a “feature” or it just works. @Chang-Eric what do you think?