테두리만들기

<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#ffffff" />
<stroke android:width="1dp" android:color="#FF8c8c8c" />
<corners android:radius="0dip"/>
<padding android:left="0dp" android:top="0dp" android:right="0dp" android:bottom="0dp" />
</shape>

/drawable/aaaaa.xml

원하는곳에 background지정
android:background="@drawabl/aaaaa"