Signal-Android/app/src/main/res/layout/message_quotes_bottom_sheet.xml

<?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"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <View
        android:id="@+id/anchor"
        android:layout_width="48dp"
        android:layout_height="2dp"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="16dp"
        android:background="@color/signal_icon_tint_tab_unselected"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"/>

    <FrameLayout
        android:id="@+id/video_container"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="@id/quotes_list"
        app:layout_constraintEnd_toEndOf="@id/quotes_list"
        app:layout_constraintStart_toStartOf="@id/quotes_list"
        app:layout_constraintTop_toTopOf="@id/quotes_list" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/quotes_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingBottom="24dp"
        android:clipToPadding="false"
        app:layout_constraintTop_toBottomOf="@id/anchor"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>