open-keychain/OpenKeychain/src/main/res/layout/encrypt_files_fragment.xml

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

    <android.support.v7.widget.RecyclerView
        android:id="@+id/selected_files_list"
        android:paddingLeft="16dp"
        android:paddingRight="16dp"
        android:scrollbars="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</RelativeLayout>