How to do the following stuffs in ListView

1. Only show scroll bar when user flip the list.

   By default, if the list is more than the screen, there is always a scrollbar on the right side.

   Is there a way to set this scrollbar only shows when user flip the list?

2. Keep showing the list background image when scrolling.

   I've set an image as the background of the ListView, but when I scroll the list, the background image will disappear and only shows a black list view background.

   Is there any way to keep showing the list background image when scrolling?

3. Don't show the shadow indicator.

   When the list has more items to display, there is a black-blur shadow to indicate user that there are more items. Is there a way to remove this item?