<?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>

把以上程式碼新增到drawable裡面、通過background引用就可以了

<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"/>