session-android/res/layout/activity_contact_share_edit.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/contact_share_edit_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingBottom="80dp"
        android:clipToPadding="false"/>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/contact_share_edit_send"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:src="@drawable/ic_send_push_white_24dp"
        android:layout_margin="@dimen/floating_action_button_margin"/>

</FrameLayout>