iAd left white blank screen after closed

Question

I got a problem to integrate iAd in my iPhone apps -- the banner ad is fine when it expends (see http://www.clingmarks.com/iAd1.png and http://www.clingmarks.com/iAd2.png),

Answer 1

When the banner finishes, it moves itself to the top of the screen even if that means having a negative y coordinate. I center the banner when it finishes. In my case there is a view controller for just the banner, so it is only full screen when the ad is clicked.

-(void) bannerViewActionDidFinish:(UIView *)inBanner {
    CGRect                      frame = [inBanner frame];

    frame.origin.x = frame.size.width * 0.5;
    frame.origin.y = frame.size.height * 0.5;

    [inBanner setCenter:frame.origin];
}