Relative布局，一张图片在另一张上面的效果

<?xml version="1.0" encoding="utf-8"?>

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

     android:id="@+id/RelativeLayout01"

     android:layout_width="fill_parent"

     android:layout_height="fill_parent" >





     <ImageView

         android:id="@+id/wode_imageView1"

         android:layout_width="150dip"

         android:layout_height="150dip"

         android:layout_alignParentLeft="true"

         android:layout_alignParentTop="true"

         android:src="@drawable/ic_launcher" />



     <ImageButton

         android:id="@+id/wode_imageButton1"

         android:layout_width="20dip"

         android:layout_height="20dip"

         android:layout_alignBottom="@+id/wode_imageView1"

         android:layout_alignRight="@+id/wode_imageView1"

         android:src="@drawable/ic_launcher" />



 </RelativeLayout>