Load png icon in android app with XML

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
   
   <SlidingDrawer
     android:id="@+id/drawer"
     android:layout_width="320dip"
     android:layout_height="440dip"
     android:orientation="vertical"
     android:handle="@+id/handle"
     android:content="@+id/content">
    
      <ImageView
         android:id="@+id/image1"
         android:layout_width="48dip"
         android:layout_height="48dip"
         android:src="@drawable/icon"  />
    
    <AnalogClock android:id="@+id/clock1"
         android:background="#D0A0A0"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent" />
        
   </SlidingDrawer>
  
</RelativeLayout>