How to hide blank or empty banners using iAd

[brett]

Hi,
Apple says to hide blank or empty banners, but it is not clear how to do this in MMF2. Does anyone know how to do the following (taken from the Apple Developer iAd implementation best practices):

"You should hide your banner view whenever ad content is not available; this includes:

1) When the banner view is initially loaded from a .xib or Storyboard
At launch, ad content may not yet be available to your app. You should hide the banner in your view controller's -viewDidLoad method.
2) When an error occurs
A banner view may fail to load an ad due to the lack of a network connection, inventory availability, improper banner usage, etc. You must hide the banner in the ADBannerView's bannerView:didFailToReceiveAdWithError: delegate method.
3) When ADBannerView's bannerLoaded is false

In other places in your code where you do layout, check the ADBannerView's bannerLoaded property to determine if the banner should be hidden."

The only condition I see in MMF2 is "when an error occurs."
Any insight is appreciated. Thanks,
Brett

[JoKa]

The iOS Object has a condition: No error in iAD advertisement
I use it this way, by setting a value as a marker:

Always -> set value=0 (which indicates that an iAD is NOT available)

No error in iAD advertisement -> set value=1 (which indicates there is an iAD showing)

Value=1 -> Enable iAD

Value=0 -> Disable iAD, show alternative AD

[DistantJ]

iAd has been updated since XCode 4 (or somewhere around here) so that you don't need to do this. It will only show an Ad if one is available. If there are no ads available, the banner will not show.