main.xml

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

    <fragment class="com.domain.MyFragment"
              android:id="@+id/myfragment"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_alignParentBottom="true"
            />

    <FrameLayout android:id="@android:id/content"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_above="@id/myfragment"
            >
    </FrameLayout>

</RelativeLayout>