Android navigation component: how save fragment state

Question

I use bottomNavigationView and navigation component. Please tell me how I don\'t destroy the fragment after switching to another tab and return to the old one? For example I

Answer 1

In case you can deal with destroying fragment, but want to save ViewModel, you can scope it into the Navigation Graph:

private val viewModel: FavouritesViewModel by 
    navGraphViewModels(R.id.mobile_navigation) {
        viewModelFactory
    }

Read more here