Android滑动到顶部和底部时出现的阴影如何去掉

<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:cacheColorHint="#00000000"
android:divider="@color/line_color"
android:dividerHeight="0.5dp"
android:fadingEdge="none"
android:overScrollMode="never">
</ListView>

android:cacheColorHint="#00000000" 

android:fadingEdge="none" 

android:overScrollMode="never"