安卓开发中实现圆形图片的显示

布局文件：


  <RelativeLayout
                android:layout_width="110dp"
                android:layout_height="110dp"
                android:layout_marginLeft="5dp"
                android:layout_marginTop="5dp" >

                <ImageView
                    android:layout_width="100dp"
                    android:layout_height="100dp"
                    android:layout_centerInParent="true"
                    android:contentDescription="@string/app_name"
                    android:scaleType="fitXY"
                    android:src="@drawable/logo_round" />

                <ImageView
                    android:id="@+id/edit_data_iv_photo"
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent"
                    android:layout_centerInParent="true"
                    android:contentDescription="@string/app_name"
                    android:scaleType="fitXY" />
            </RelativeLayout>


java文件：
private DisplayImageOptions moIlconfig;