android:divider="#fffff"  分割线颜色

    android:dividerHeight="1px"  分割线高度  

    <!-- res/drawable/liner.xml ->

    <?xmlversionxmlversion="1.0"encoding="utf-8"?>

    <layer-list   xmlns:android="http://schemas.android.com/apk/res/android">

     <item>

       <shape>

          <gradient

             android:startColor="#000000"

             android:centerColor="#CCCCCC"

             android:endColor="#FFFFFF"

             android:height="1px"

             android:angle=""/>

      </shape>

     </item>

    </layer-list>  

    <ListViewandroid:idListViewandroid:id="@id/android:list"

        ...

        android:divider="@drawable/list_divider"

        android:dividerHeight="1dip"

        />