android去除Spinner的分割线

<style name="TestSpinnerStyle" parent="android:style/Widget.ListView.DropDown">
    <item name="android:divider">#ff0000</item>
    <item name="android:dividerHeight">5dp</item>
</style>


<style name="SampleTheme" parent="@android:style/Theme.Holo.Light">
    <item name="android:dropDownListViewStyle">@style/TestSpinnerStyle</item>
</style>

文章来自：http://www.cnblogs.com/niray/p/4251353.html