How can I get iAd to fly in to prevent white box? - objective-c

Question

I am using a shared method to have iAD appear across three view controllers and using the App Delegate. The issue I am having is that when ads do not appear it is forming the white box. I know Apple will not approve the app if the white box appears. What can I code to have the ad start off screen and have it fly in when an ad is present and when an ad is not present, have it fly off.
I assume I would change this on all three views.
Here is the code for each .m
- (AppDelegate *) appdelegate {
return (AppDelegate *)[[UIApplication sharedApplication] delegate];
}
-(void) viewWillAppear:(BOOL)animated{
_UIiAD = [[self appdelegate] UIiAD];
_UIiAD.delegate = self;
[_UIiAD setFrame:CGRectMake(100,700,320,50)];
[self.view addSubview:_UIiAD];
}
-(void)bannerViewDidLoadAd:(ADBannerView *)banner{
NSLog(#"ads loaded");
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[_UIiAD setAlpha:1];
[UIView commitAnimations];
}
-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error{
NSLog(#"ads not loaded");
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[_UIiAD setAlpha:0];
[UIView commitAnimations];
}
If it helps, ads are being place on the bottom of a landscape mode iPad

Answer 1

Try this code:
Write this in your .m file:
-(void)AD_init
{
_adBanner = [[ADBannerView alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height, 320, 50)];
_adBanner.delegate = self;
}
- (void)bannerViewDidLoadAd:(ADBannerView *)banner
{
if (!_bannerIsVisible)
{
if (_adBanner.superview == nil)
{
[self.view addSubview:_adBanner];
}
[UIView beginAnimations:#"animateAdBannerOn" context:NULL];
banner.frame = CGRectOffset(banner.frame, 0, -banner.frame.size.height);
[UIView commitAnimations];
_bannerIsVisible = YES;
}
}
- (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
NSLog(#"Failed to retrieve ad data");
if (_bannerIsVisible)
{
[UIView beginAnimations:#"animateAdBannerOff" context:NULL];
banner.frame = CGRectOffset(banner.frame, 0, banner.frame.size.height);
[UIView commitAnimations];
_bannerIsVisible = NO;
}
}
And in your .h file :
BOOL _bannerIsVisible;
ADBannerView *_adBanner;

Answer 2

Answer supplies above. It now works for shared screen iad.