RecyclerView inside HorizontalScrollView not showing all items

Question

I have a RecyclerView inside a HorizontalScrollView. I don't see inside RecyclerView all the items. I have looked and even if the list in the adapter has 7 items, onBindViewHolder is called only 4 times! If I take out the HorizontalScrollView, it works ok.

I use the HorizontalScrollView because I need to scroll the list with the background of the recycle, not inside recycle, how it usually works.

So, I need a solution to scroll a list with the background of the list, or to show all the items using HorizontalScrollView

UPDATE :

<?xml version="1.0" encoding="utf-8"?>
<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="wrap_content"
    android:paddingTop="20dp">

    <HorizontalScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:scrollbars="none"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/label">

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

            <RelativeLayout
                android:id="@+id/rlWrapper"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_toEndOf="@id/paddingStartView"
                android:background="@drawable/bg_round_corner">

                <androidx.recyclerview.widget.RecyclerView
                    android:id="@+id/optionsRv"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal"
                    app:layout_constraintStart_toStartOf="parent" />

            </RelativeLayout>

            <View
                android:id="@+id/paddingStartView"
                android:layout_width="16dp"
                android:layout_height="16dp" />

            <View
                android:id="@+id/paddingEndView"
                android:layout_width="16dp"
                android:layout_height="16dp"
                android:layout_toEndOf="@id/rlWrapper" />

        </RelativeLayout>


    </HorizontalScrollView>

    <TextView
        android:id="@+id/label"
        style="@style/FontLocalizedMedium"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:textAllCaps="true"
        android:textColor="#979797"
        android:textSize="12sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="Tempareature" />

</androidx.constraintlayout.widget.ConstraintLayout>

Answer 1

Make the child of the HorizontalScrollView to be RelativeLayout instead of LinearLayout