habitica-android/Habitica/res/layout/fragment_recyclerview.xml

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


<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/relativeLayoutView"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scrollbarSize="3dp"
        android:scrollbarThumbVertical="@color/md_grey_500"
        android:scrollbars="vertical" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        app:backgroundTint="@color/brand"
        app:fabSize="normal"
        android:layout_alignBottom="@id/recyclerView"
        android:layout_alignParentRight="true" />
</RelativeLayout>