AndroidAPS/app/src/main/res/layout/danar_historyactivity.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".plugins.PumpDanaR.activities.DanaRHistoryActivity">


    <LinearLayout
        android:id="@+id/danar_historytop"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_marginRight="20dp"
            android:text="Type:"
            android:textAppearance="?android:attr/textAppearanceSmall" />

        <Spinner
            android:id="@+id/danar_historytype"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="20dp" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right"
            android:layout_marginRight="5dp"
            android:layout_weight="1"
            android:background="@drawable/pillborder"
            android:gravity="center_horizontal"
            android:text="DanaR History" />


    </LinearLayout>

    <TextView
        android:id="@+id/danar_historystatus"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/danar_historytop"
        android:layout_gravity="center_horizontal"
        android:gravity="center_horizontal" />

    <android.support.v7.widget.RecyclerView
        android:id="@+id/danar_history_recyclerview"
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:layout_above="@+id/danar_historybuttons"
        android:layout_below="@+id/danar_historystatus" />

    <LinearLayout
        android:id="@+id/danar_historybuttons"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal">

        <Button
            android:id="@+id/danar_historyreload"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/danar_historyreload" />

        <Button
            android:id="@+id/danar_historysync"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Sync to NS" />
    </LinearLayout>

</RelativeLayout>