ANDROID SHAPE画圆形背景实现圆形TextView

<?xml version="1.0" encoding="UTF-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval"
android:useLevel="false" >
<solid android:color="@color/common_red" />
<padding
android:left="2dp"
android:top="1dp"
android:right="2dp"
android:bottom="1dp" />
<solid
android:color="@color/common_red" />
<stroke
android:width="1dp"
android:color="@android:color/white" />
<size android:width="15dp"
android:height="15dp" />
</shape>

<TextView
android:id="@ id/message_category_unread_count"
style="@style/comm_text_style_14_aaaaaa"
android:layout_marginLeft="70dp"
android:layout_marginTop="5dp"
android:background="@drawable/design_red_point"
android:gravity="center"
android:textSize="@dimen/text_size_comment_20"
android:text="7"
android:textColor="@android:color/white" />