<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    <ImageView android:id="@+id/imgview"
        android:layout_width="@dimen/image_width" 
        android:layout_height="@dimen/image_height"      
        android:src="@drawable/ic_launcher"
        android:layout_marginTop="100dip"  
        android:layout_marginLeft="100dip" />
</RelativeLayout>
