<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <ImageView
        android:id="@+id/image_header"
	    android:layout_width="fill_parent"
	    android:layout_height="250dp"
	    android:src="@drawable/dummy"
	    android:adjustViewBounds="true"
	    android:scaleType="centerCrop" />

</RelativeLayout>