I have a layout using a Recyclerview in a ConstaintLayout as follows
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".ui.user_list.UserListSelectionBottomSheetDialogFragment">
<!--<com.google.android.material.appbar.MaterialToolbar
android:id="@+id/user_list_selection_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
style="@style/Widget.MaterialComponents.Toolbar.Surface" />
<com.google.android.material.divider.MaterialDivider
android:id="@+id/user_list_selection_toolbar_divider"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="@id/user_list_selection_toolbar" /> -->
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/user_list_selection_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
tools:listitem="@layout/item_user_list" />
</androidx.constraintlayout.widget.ConstraintLayout>
However, the recyclerview seems to be showing up horizontally instead of vertically and is not rendering the items (I changed the item background color to green)
But if I change the parent layout to a LinearLayout, it shows up fine. I see this is an existing issue such as here but is there an explanation as to why? Or is it just something to accept?