How to set Image inside of Donut-achartEngine Graph?

I am using aChartEngineLibrary to make donut graph.But having problem to add image inside of donut Graph. I can set Background Color only , but not get able to set background image inside of donut. Please check image . enter image description here

Solution

This could help..

<RelativeLayout
   android:layout_width="match_parent"
   android:layout_height="170dp" >

   <LinearLayout
      android:id="@+id/left_graph_for_head_injury"   //here to draw donut
      android:layout_width="match_parent"
      android:layout_height="170dp" >
   </LinearLayout>

   <ImageView    //image to place
      android:layout_width="95dp"
      android:layout_height="95dp"
      android:layout_centerInParent="true"
      android:scaleType="fitXY"
      android:src="@drawable/inside_donut_head_injury_image" />
</RelativeLayout>