iAd在收到错误时不从视图中删除

Question

我已经实现了bannerView didFailToReceiveAdWithError:

- (void)bannerView(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error 
{
    _bannerView.hidden = NO;
}

请你告诉我为什么当错误出现时它不会消失

我在日志中得到这个：

2012-10-27 15:40:57.367 MinePedia[22467:11903] [AppDeveloper]: 
ADBannerView: Unhandled error (no delegate or delegate does not implement didFailToReceiveAdWithError:): 
Error Domain=ADErrorDomain Code=3 "The operation couldn’t be completed. Ad inventory unavailable" 
UserInfo=0x7192530 {ADInternalErrorCode=3, ADInternalErrorDomain=ADErrorDomain, NSLocalizedFailureReason=Ad inventory unavailable}

Answer 1

确保在创建AdBannerView实例

后有_bannerView.delegate = self;