iAd警告——横幅视图模糊

Question

我正在尝试在我现有的应用程序之一实现iAd。它的工作原理，但我不断得到一个错误信息:ADBannerView:警告横幅视图有一个广告，但可能是模糊的。此信息仅在每个横幅视图中打印一次。

广告是否被遮挡或可能被遮挡?代码有问题吗?我想不明白。我承认我是个新手。任何帮助都将非常感激。谢谢你看了我的问题。

- (void)createBannerView {
        Class cls = NSClassFromString(@"ADBannerView");
    if (cls) {
        ADBannerView *adView = [[[cls alloc] initWithFrame:CGRectZero]autorelease];       
        adView.currentContentSizeIdentifier =ADBannerContentSizeIdentifierPortrait;
       adView.autoresizingMask =  UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleTopMargin |UIViewAutoresizingFlexibleBottomMargin| UIViewAutoresizingFlexibleRightMargin |UIViewAutoresizingFlexibleLeftMargin;
        adView.delegate = self;
        CGRect bannerFrame =adView.frame;
        bannerFrame.origin.y = self.view.frame.size.height;
            adView.frame = bannerFrame;
             adView.frame = CGRectOffset(adView.frame, 0, -50);

        self.bannerView = adView;
        [self.view addSubview:adView];

    }
}
- (void)showBanner {
    CGFloat fullViewHeight = self.view.frame.size.height;
    CGRect tableFrame = self.tView.frame;
    CGRect bannerFrame = self.bannerView.frame;
    tableFrame.size.height = fullViewHeight - bannerFrame.size.height;
    bannerFrame.origin.y = fullViewHeight - bannerFrame.size.height; 
    [UIView beginAnimations:@"showBanner" context:NULL];
    self.tView.frame = tableFrame;
    self.bannerView.frame = bannerFrame;
    [UIView commitAnimations];
}

Answer 1

可能，当iad被显示时，你打开一个modalView控制器或其他视图来front。这可能导致模糊错误。

消除错误的最简单方法是，在ViewWillDisappear:

中删除横幅视图。

-(void)viewWillDisappear:(BOOL)animated
{
    [bannerView removeFromSuperview];
}

Answer 2

尝试添加[self.view bringSubviewToFront:bannerView];