CODEWITHSUNDEEP
androidkotlinandroid-viewpager2child-fragmentfragmentstateadapter
Kotlin Learner
Kotlin Learner

Reputation: 21

Error : None of the following functions can be called with the arguments supplied issue in FragmentStateAdapter in viewpager2

See my code

I am using viewpager 2 in a fragment to hold child fragments. There can be 'n' number of child fragments. It is showing lint error in adapter.

//See my fragment code

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        val docs = mutableListOf(1,2,3,4,5,6,7,8,9)

        view_pager.adapter = DocAdapter(childFragmentManager,lifecycle,docs)

    }

// my adapter code

    import androidx.fragment.app.Fragment
    import androidx.fragment.app.FragmentManager
    import androidx.lifecycle.Lifecycle
    import androidx.viewpager2.adapter.FragmentStateAdapter
    
    class DocAdapter(fa: FragmentManager, lifecycle: Lifecycle, private val docs : MutableList<Int>) :
FragmentStateAdapter(fa) {
    
        override fun getItemCount(): Int = docs.size
    
        override fun createFragment(position: Int): Fragment = DocUploadFragment().newInstance(docs[position])
    }

The lint error is in the following line of the adapter class

class DocAdapter(fa: FragmentManager, lifecycle: Lifecycle, private val docs : MutableList<Int>) :
FragmentStateAdapter(fa) {

Upvotes: 2

Views: 1396

Answers (1)

Saurabh Thorat
Saurabh Thorat

Reputation: 20684

FragmentStateAdapter requires a FragmentManager and Lifecycle in its constructor. Change your DocAdapter to this:

class DocAdapter(fa: FragmentManager, lifecycle: Lifecycle, private val docs : MutableList<Int>) :
    FragmentStateAdapter(fa, lifecycle) {
    ...
}

Upvotes: 2

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