How to set the color of an Android ScrollView fading edge?

Question

I have an Android scrollview with a white background. The fading edge is a white translucent gradient. I would like to change it be black instead of white. I have a ListView

Answer 1

EDIT: this does not answer the question, which was asking for ScrollView. This answer only works on AbsListView and descendants (including ListView).

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Fading edge color is controlled by the android:cacheColorHint attribute.

E.g.:

will set the background to white, and the cacheColorHint is used to draw the fading edge color -- in this case, it would be black.