 <shape 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <solid 
        android:color="#00000000" />

    <stroke 
        android:color="#ffffff" 
        android:width="1dp" />

<!--
    <corners 
         android:radius="8dp" />
-->

</shape> 
