Signal-Android/app/src/main/res/layout/stories_landing_fragment.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="match_parent">

    <View
        android:id="@+id/toolbar_shadow"
        android:layout_width="match_parent"
        android:layout_height="5dp"
        android:alpha="0"
        android:background="@drawable/toolbar_shadow"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recycler"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <org.thoughtcrime.securesms.components.registration.PulsingFloatingActionButton
        android:id="@+id/camera_fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginBottom="20dp"
        android:contentDescription="@string/conversation_list_fragment__open_camera_description"
        android:focusable="true"
        android:theme="@style/Widget.Material3.FloatingActionButton.Secondary"
        app:backgroundTint="@color/signal_colorSecondaryContainer"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:srcCompat="@drawable/ic_camera_solid_white_24"
        app:tint="@color/signal_colorOnSecondaryContainer" />

    <TextView
        android:id="@+id/empty_notice"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/dsl_settings_gutter"
        android:layout_marginEnd="@dimen/dsl_settings_gutter"
        android:text="@string/StoriesLandingFragment__no_recent_updates"
        android:textAppearance="@style/Signal.Text.Body"
        android:textColor="@color/signal_text_secondary"
        android:visibility="gone"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />


</androidx.constraintlayout.widget.ConstraintLayout>