hostage/res/layout/fragment_statistics.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:background="@android:color/transparent"
    >


        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="vertical"
            android:layout_height="40dp"
            android:layout_width="match_parent"
            android:id="@+id/title_layout"
            android:padding="5dp"
            android:layout_alignParentTop="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="Title"
                android:textAlignment="center"
                android:id="@+id/title_textView" />
        </LinearLayout>



        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_above="@+id/toolbar_layout"
            android:layout_below="@+id/title_layout"
            android:weightSum="2">

        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="vertical"
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            android:id="@+id/plot_layout"
            android:padding="2dp"
            android:layout_weight="0.9">

        </LinearLayout>

            <ListView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/legend_list_view"
                android:layout_weight="1.1"
                />

            </LinearLayout>


    <RelativeLayout
        style="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse"
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:alpha="0.8"
        android:id="@+id/toolbar_layout"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true">

        <ImageButton
            style="@android:style/Widget.DeviceDefault.ActionButton.Overflow"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/PiePlotButton"
            android:src="@drawable/ic_sort_by_size"
            android:layout_gravity="right"
            android:layout_alignParentTop="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true"/>

        <ImageButton
            style="@android:style/Widget.DeviceDefault.ActionButton.Overflow"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/LinePlotButton"
            android:src="@drawable/ic_filter"
            android:layout_alignParentTop="true"
            android:layout_toLeftOf="@+id/BarPlotButton"/>

        <ImageButton
            style="@android:style/Widget.DeviceDefault.ActionButton.Overflow"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/BarPlotButton"
            android:src="@drawable/ic_device_access_storage"
            android:layout_alignParentTop="true"
            android:layout_toLeftOf="@+id/PiePlotButton"/>
    </RelativeLayout>




</RelativeLayout>