I can't scroll the recyclerview even though it display all of the items

Question

Recyclerview shows all the items, but I can't scroll it. Also in a way that I can't understand, once I click and open the searchView, I'm able to scroll just a bit (still not fully). How can I get the recyclerview to scroll?

Here is the Constraint Layout that includes Recycler View

<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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimaryDark"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/tv1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fontFamily="sans-serif"
        android:paddingStart="@dimen/_10sdp"
        android:paddingTop="@dimen/_10sdp"
        android:text="@string/notes"
        android:textColor="@color/ColorWhite"
        android:textSize="@dimen/_15sdp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <SearchView
        android:queryHint="@string/search"
        android:theme="@style/ThemeOverlay.search"
        android:iconifiedByDefault="false"
        android:id="@+id/search_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/_10sdp"
        android:background="@drawable/background"
        android:searchIcon="@drawable/ic_search"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tv1" />


    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:nestedScrollingEnabled="false"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/_10sdp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        android:overScrollMode="never"
        app:layout_constraintTop_toBottomOf="@id/search_view" />
    <LinearLayout
        android:id="@+id/l1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimary"
        android:orientation="horizontal"
        android:padding="@dimen/_10sdp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_tick"
            app:tint="@color/ColorWhite" />
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="@dimen/_10sdp"
            android:layout_marginEnd="@dimen/_10sdp"
            android:src="@drawable/ic_baseline_image_24"
            app:tint="@color/ColorWhite" />
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_baseline_insert_link_24"
            app:tint="@color/ColorWhite" />


    </LinearLayout>

    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fabCreateNote"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_baseline_add_24"
        android:backgroundTint="@color/colorAccent"
        android:tint="@color/ColorWhite"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_marginEnd="@dimen/_20sdp"
        android:layout_marginBottom="@dimen/_20sdp"/>



</androidx.constraintlayout.widget.ConstraintLayout>

And here is the Recyclerview Adapter

class NotesAdapter() :
    RecyclerView.Adapter<NotesAdapter.NotesViewHolder>() {
    var listener: OnItemClickListener? = null
    var arrList = ArrayList<Notes>()
    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NotesViewHolder {
        return NotesViewHolder(
            LayoutInflater.from(parent.context).inflate(R.layout.item_rv_notes, parent, false)
        )
    }

    override fun getItemCount(): Int {
        return arrList.size
    }

    fun setData(arrNotesList: List<Notes>) {
        arrList = arrNotesList as ArrayList<Notes>
    }

    fun setOnClickListener(listener1: OnItemClickListener) {
        listener = listener1
    }

    override fun onBindViewHolder(holder: NotesViewHolder, position: Int) {

        holder.itemView.tvTitle.text = arrList[position].title
        holder.itemView.tvDesc.text = arrList[position].noteText
        holder.itemView.tvDateTime.text = arrList[position].dateTime

        if (arrList[position].color != null){
            holder.itemView.cardView.setCardBackgroundColor(Color.parseColor(arrList[position].color))
        }else{
            holder.itemView.cardView.setCardBackgroundColor(Color.parseColor(R.color.ColorLightBlack.toString()))
        }

        if (arrList[position].pathImage != null) {
            holder.itemView.imgNote.setImageBitmap(BitmapFactory.decodeFile(arrList[position].pathImage))
            holder.itemView.imgNote.visibility = View.VISIBLE
        } else {
            holder.itemView.imgNote.visibility = View.GONE
        }

        if (arrList[position].webLink != "") {
            holder.itemView.tvWebLink.text = arrList[position].webLink
            holder.itemView.tvWebLink.visibility = View.VISIBLE
        } else {
            holder.itemView.tvWebLink.visibility = View.GONE
        }

        holder.itemView.cardView.setOnClickListener {
            listener!!.onClicked(arrList[position].pld!!)
        }

    }

    class NotesViewHolder(view: View) : RecyclerView.ViewHolder(view){

    }


    interface OnItemClickListener {
        fun onClicked(noteId: Int)
    }

}```

What happens when you change the `android:nestedScrollingEnabled="false"` attribute inside the RecyclerViewWidget to `true`? — Tonnie, Jun 20 '21 at 12:18
https://stackoverflow.com/questions/45397199/android-recyclerview-in-constraintlayout-doesnt-scroll — Deniz Göçer, Jun 20 '21 at 15:51
Your recycler view does NOT have a bottom constrain and it wraps content. — Martin Marconcini, Jun 21 '21 at 12:14

score 0 · Answer 1 · answered Jun 20 '21 at 13:00

Try placing the .xml content inside the Drawer layout

<androidx.drawerlayout.widget.DrawerLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimaryDark"
    tools:context=".MainActivity">

   <FrameLayout
           android:layout_width="match_parent"
           android:layout_height="wrap_content">

       <TextView
           android:id="@+id/tv1"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:fontFamily="sans-serif"
           android:paddingStart="@dimen/_10sdp"
           android:paddingTop="@dimen/_10sdp"
           android:text="@string/notes"
           android:textColor="@color/ColorWhite"
           android:textSize="@dimen/_15sdp"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toTopOf="parent" />

       <SearchView
           android:queryHint="@string/search"
           android:theme="@style/ThemeOverlay.search"
           android:iconifiedByDefault="false"
           android:id="@+id/search_view"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:layout_margin="@dimen/_10sdp"
           android:background="@drawable/background"
           android:searchIcon="@drawable/ic_search"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toBottomOf="@id/tv1" />


       <androidx.recyclerview.widget.RecyclerView
           android:id="@+id/recycler_view"
           android:nestedScrollingEnabled="false"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:layout_margin="@dimen/_10sdp"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           android:overScrollMode="never"
           app:layout_constraintTop_toBottomOf="@id/search_view" />
       <LinearLayout
           android:id="@+id/l1"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:background="@color/colorPrimary"
           android:orientation="horizontal"
           android:padding="@dimen/_10sdp"
           app:layout_constraintBottom_toBottomOf="parent"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent">
   
           <ImageView
               android:layout_width="wrap_content"
               android:layout_height="wrap_content"
               android:src="@drawable/ic_tick"
               app:tint="@color/ColorWhite" />
           <ImageView
               android:layout_width="wrap_content"
               android:layout_height="wrap_content"
               android:layout_marginStart="@dimen/_10sdp"
               android:layout_marginEnd="@dimen/_10sdp"
               android:src="@drawable/ic_baseline_image_24"
               app:tint="@color/ColorWhite" />
           <ImageView
               android:layout_width="wrap_content"
               android:layout_height="wrap_content"
               android:src="@drawable/ic_baseline_insert_link_24"
               app:tint="@color/ColorWhite" />
  

       </LinearLayout>
   </FrameLayout>

   <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fabCreateNote"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_baseline_add_24"
        android:backgroundTint="@color/colorAccent"
        android:tint="@color/ColorWhite"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_marginEnd="@dimen/_20sdp"
        android:layout_marginBottom="@dimen/_20sdp"/>

</androidx.drawerlayout.widget.DrawerLayout>

Zain · Answer 2 · 2021-06-21T11:04:43.073

Actually the problem isn't in the scrolling itself, but that the rest of the RecyclerView items can't be seen as they are behind the l1 LinearLayout.

To fix this you can adjust the ConstraintLayout constraints to attach a RecyclerView bottom constraints to the top of the l1, and make the height as 0dp to match constraints:

<androidx.recyclerview.widget.RecyclerView
   android:id="@+id/recycler_view"
   android:layout_width="match_parent"
   android:layout_height="0dp"
   android:layout_margin="@dimen/_10sdp"
   app:layout_constraintEnd_toEndOf="parent"
   app:layout_constraintBottom_toTopOf="@+id/l1"
   app:layout_constraintStart_toStartOf="parent"
   app:layout_constraintTop_toBottomOf="@id/search_view" />

I can't scroll the recyclerview even though it display all of the items

2 Answers2