Black after setting the background image in Android listview

from: http://blog.sina.com.cn/s/blog_629b701e0100wu39.html in Android, listview is the most commonly used control. During uidesign, many people want to change its background so that it can conform to the overall uidesign, it's easy to change the background. You only need to prepare an image and specify the attributes
Android: Background = "@ drawable/BG". But don't be so happy. When you do this, the background is changed, but when you drag or click the blank position in the list, it is found that the listitem is black, which damages the overall effect.

Why?

the default listitem background is transparent, the background of the listview is fixed, so if the display content of each item and the background of the current item are mixed in real time during scroll of the scroll bar, therefore, the android system uses an attribute called Android: cachecolorhint to optimize this process. The default color value for the black topic is #191919, half of them are black


what should I do?

If you only change the background color, you can directly specify Android: cachecolorhint is the color you want. If you use an image as the background, you only need to specify Android: cachecolorhint as transparent (#00000000, of course, we have to sacrifice some efficiency for beautification.