Remove the white "frame" that occurs when the interface flips?

I have a view with a black background, when I flip the device and the interface flips with it a white pixelated "frame" appears around the black view during the animation, and then the frame disappears when the interface settles.

This "frame" seem to be part of, or a consequence of the animation, is there any known 开发者_如何学Goway of solving this issue?

Solution by Paul Peelen:

Setting the UIWindow background color to black, in the AppDelegate, solved the problem :)

[[self window] setBackgroundColor:[UIColor blackColor]];