Implementing Viewpager2 in a fragment with Recycler view

Question

I'm trying to implement viewpager2 in a fragment which shows a list of notes with Recycler View. I tried different solutions but I'm unable to figure it out.

Here is my fragment_notes_list.xml :

<androidx.recyclerview.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/notes_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

list_item_notes.xml used to display recycler view viewholder:

<androidx.cardview.widget.CardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:id="@+id/card_pertanyaan"
    android:layout_width="match_parent"
    android:layout_height="96dp"
    android:layout_marginLeft="16dp"
    android:layout_marginTop="12dp"
    android:layout_marginRight="16dp"
    android:clickable="true"
    android:foreground="?selectableItemBackground"
    card_view:cardBackgroundColor="#595959"
    card_view:cardCornerRadius="8dp"
    card_view:contentPadding="10dp">

    <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/linearLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/notes_title"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="8dp"
            android:text="Title"
            android:textColor="@color/white"
            app:layout_constraintBottom_toTopOf="@+id/notes_body"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_chainStyle="packed" />

        <TextView
            android:id="@+id/notes_body"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:textColor="@color/white"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/notes_title" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>

Relevant snippets from fragment class NotesListFragment.kt :

override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        val view = inflater.inflate(R.layout.fragment_notes_list, container, false)

        notesRecyclerView =
            view.findViewById(R.id.notes_recycler_view) as RecyclerView
        registerForContextMenu(notesRecyclerView)
        notesRecyclerView.layoutManager = LinearLayoutManager(context)
        notesRecyclerView.adapter = adapter
        return view
    }

private inner class ScreenSlidePagerAdapter(fa: Fragment) : FragmentStateAdapter(fa) {

        override fun getItemCount(): Int = NUM_PAGES

        override fun createFragment(position: Int): Fragment {
            return if (position == 0) {
                NotesListFragment()
       

 } else {
            CalenderFragment()
        }
    }
}



override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        notesListViewModel.notesListLiveData.observe(
            viewLifecycleOwner,
            Observer { notes ->
                notes?.let {
                    Log.i(TAG, "got notes")
                    updateUI(notes)
                }
            })
    }

private inner class NotesAdapter(var notes: List<Notes>) : RecyclerView.Adapter<NotesHolder>() {

        override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NotesHolder {
            val view = layoutInflater.inflate(R.layout.list_item_notes, parent, false)

           /* viewPager = view.findViewById(R.id.pager)

            val pagerAdapter = ScreenSlidePagerAdapter(this@NotesListFragment)
            viewPager.adapter = pagerAdapter */

            return NotesHolder(view)
        }

        override fun getItemCount() = notes.size

        override fun onBindViewHolder(holder: NotesHolder, position: Int) {
            val note = notes[position]
            holder.bind(note)
     



 }
    }

I'm confused should I add ViewPager2 with FrameLayout in list_item_notes.xml? But then how can I implement ScreenSliderPagerAdapter for it?

Answer 1

Solved the problem.

Since, I was unable to add Viewpager with recycler view of NotesListFragment, I made another Parent Fragment with viewpager and put NotesListFragment inside it.