session-android/res/layout/conversation_list_fragment.xml

<?xml version="1.0" encoding="utf-8"?>

<androidx.coordinatorlayout.widget.CoordinatorLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:orientation="vertical">

    <TextView android:id="@+id/empty_search"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_marginTop="100dp"
              android:gravity="center"
              android:textSize="18sp"
              android:padding="16dp"
              android:visibility="invisible"
              tools:text="No results found for 'foo'"/>

    <LinearLayout android:id="@+id/empty_state"
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:layout_gravity="center"
                  android:orientation="vertical"
                  android:visibility="gone"
                  tools:visibility="visible">


        <ImageView android:id="@+id/empty"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content"
                   android:layout_gravity="center_horizontal"
                   tools:src="@drawable/conversation_list_empty_state"
                   android:visibility="gone" />


        <TextView android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:layout_marginStart="32dp"
                  android:layout_marginEnd="32dp"
                  android:layout_marginTop="20dp"
                  android:layout_marginBottom="20dp"
                  style="@style/Signal.Text.Body"
                  android:text="@string/activity_conversation_list_empty_state_message"
                  android:gravity="center" />
    </LinearLayout>

    <LinearLayout android:layout_width="match_parent"
                  android:layout_height="match_parent"
                  android:orientation="vertical"
                  tools:visibility="gone">

        <org.thoughtcrime.securesms.components.reminder.ReminderView
                android:id="@+id/reminder"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/list"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scrollbars="vertical"
                android:nextFocusDown="@+id/fab"
                android:nextFocusForward="@+id/fab"
                tools:listitem="@layout/conversation_list_item_view" />

    </LinearLayout>


    <org.thoughtcrime.securesms.components.registration.PulsingFloatingActionButton
            android:id="@+id/fab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom|end"
            android:layout_margin="16dp"
            android:src="@drawable/ic_create_white_24dp"
            android:focusable="true"
            android:contentDescription="@string/conversation_list_fragment__fab_content_description"/>


</androidx.coordinatorlayout.widget.CoordinatorLayout>