Fragment Pager Adapter Injection + ViewModel + fragmentManager

[gpulido]

Hello,
I have a FragmentAdapter with two constructor parameters: fragmentManager and a ViewModel.

I would like to inject it but I don't know what is the right way to put all the pieces together to declare the adapter in the koin module to be injected

The element that I need to inject:

class KeysPagerAdapter<TKey:BaseKey>(fragmentManager:FragmentManager, var viewModel:FocusableViewModel<TKey, List<TKey>>):       FragmentStatePagerAdapter(fragmentManager) {

where FocusableViewModel is an interface:

interface FocusableViewModel<TObject, TList:List<TObject>>: ObjectListViewModel<TObject, TList>

I want to create a keysPagerAdapter with the following viewModel injected:

class AnnotationsViewModel(contenderId: String, annotationId:String, val dao: ContenderDao): ViewModel(),
        FocusableViewModel<AnnotationDetailKey, List<AnnotationDetailKey>>

This viewModel is being created without problems to feed a fragment. It is defined in the koin module

viewModel {  params -> AnnotationsViewModel(params[EXTRA_CONTENDER_ID], params[EXTRA_ANNOTATION_ID], get()) }

and it is being used in a fragment:

val viewModel
            by viewModel<AnnotationsViewModel>{
                    mapOf(
                            Properties.EXTRA_CONTENDER_ID to (getKey<AnnotationsKey>()?.id?: Utils.EmptyUUID),
                            Properties.EXTRA_ANNOTATION_ID to Utils.EmptyUUID
                                    )
            }

So I need to be able to define the bean to inject the keysadapter and I'm not sure how to define it on the koin module and how to inject it to be used in a fragment.

I've tried with this:

 bean { params -> KeysPagerAdapter(params[FRAGMENT_MANAGER], get<AnnotationsViewModel>())}

And injecting it through:

val pagerAdapter by inject<KeysPagerAdapter<AnnotationDetailKey>>{ mapOf(Properties.FRAGMENT_MANAGER to childFragmentManager)}

But this fails at it complains about missing parameters EXTRA_CONTENDER_ID and EXTRA_ANNOTATION_ID.
It makes sense as it doesn't know how to resolve, but I don't know how to define the bean or how to pass the paramenters the inject to obtain it...

[arnaudgiuliani]

Hello,

If you want to use function parameters in your definition,
you just have to use the params arguments as you do. To inject parameters values, open a lambda behind by inject or by viewModel and fill a map of values.

But this is what you already done. I don't understand well where is the problem :/

Can you provide a small project to be able to better understand your case?