<?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:gravity="center_vertical"
    android:orientation="vertical" >

    <Button
        android:id="@+id/cancelFilters"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_marginLeft="90dp"
        android:text="@string/cancelFilters" />

    <Button
        android:id="@+id/acceptFilters"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_marginLeft="90dp"
        android:layout_toRightOf="@+id/cancelFilters"
        android:text="@string/acceptFilters" />

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/acceptFilters"
        android:layout_alignParentTop="true"
        android:orientation="vertical" >

        <RadioGroup
            android:id="@+id/Filters_Users_Options"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" >

            <RadioButton
                android:id="@+id/Filters_All"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/Filters_All" />

            <RadioButton
                android:id="@+id/Filters_Teachers"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/Filters_Teachers" />

            <RadioButton
                android:id="@+id/Filters_Students"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/Filters_Students" />
        </RadioGroup>
    </LinearLayout>

</RelativeLayout>