怎么在android中利用xml文件实现边框背景效果

<&#63;xml version="1.0" encoding="utf-8"&#63;>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
 <item android:right="0dp">
 <shape android:shape="rectangle" >
  <solid android:color="#f9e284"></solid>
 </shape>
 </item>
 <item
 android:right="8dp"
 android:top="8dp"
 android:left="8dp"
 android:bottom="8dp">
 <shape android:shape="rectangle" >
  <stroke
  android:color="@color/white"
  android:width="1dp"/>
 </shape>
 </item>
</layer-list>