1<layout xmlns:android="http://schemas.android.com/apk/res/android">
 2
 3    <android.support.design.widget.CoordinatorLayout
 4        android:background="?attr/color_background_primary"
 5        android:layout_width="match_parent"
 6        android:layout_height="match_parent">
 7
 8
 9        <android.support.v7.widget.RecyclerView
10            android:id="@+id/list"
11            android:layout_width="match_parent"
12            android:layout_height="match_parent"
13            android:background="?attr/color_background_primary"
14           />
15
16        <android.support.design.widget.FloatingActionButton
17            android:id="@+id/fab"
18            android:layout_width="wrap_content"
19            android:layout_height="wrap_content"
20            android:layout_gravity="end|bottom"
21            android:layout_margin="16dp"
22            android:src="@drawable/ic_chat_white_24dp"/>
23    </android.support.design.widget.CoordinatorLayout>
24</layout>