1<layout xmlns:android="http://schemas.android.com/apk/res/android"
 2        xmlns:app="http://schemas.android.com/apk/res-auto">
 3
 4    <androidx.coordinatorlayout.widget.CoordinatorLayout
 5        android:background="?attr/color_background_primary"
 6        android:layout_width="match_parent"
 7        android:layout_height="match_parent">
 8
 9
10        <androidx.recyclerview.widget.RecyclerView
11            android:id="@+id/list"
12            android:scrollbars="vertical"
13            android:layout_width="match_parent"
14            android:layout_height="match_parent"
15            android:background="?attr/color_background_primary"
16           />
17
18        <com.google.android.material.floatingactionbutton.FloatingActionButton
19            android:id="@+id/fab"
20            app:backgroundTint="?colorPrimary"
21            android:layout_width="wrap_content"
22            android:layout_height="wrap_content"
23            android:layout_gravity="end|bottom"
24            android:layout_margin="16dp"
25            android:src="@drawable/ic_chat_white_24dp"/>
26    </androidx.coordinatorlayout.widget.CoordinatorLayout>
27</layout>