如何在一个视图中使用多个 iAd 横幅 (iPhone/iPad)

Question

我正在尝试设置多个 iAd 横幅在单个视图中显示（一个位于屏幕顶部导航栏下方，另一个位于屏幕最底部）。但是，我在将它们移入和移出屏幕时遇到问题。

我相信这是由于委托方法不知道要移动哪个横幅，但我不确定如何解决该问题。这是我目前使用的代码：

- (void)createIAdBanner
{
    adView = [[ADBannerView alloc] initWithFrame:CGRectZero];
    adView.frame = CGRectOffset(adView.frame, 0, -50);
    adView.requiredContentSizeIdentifiers = [NSSet setWithObject:ADBannerContentSizeIdentifierPortrait];
    adView.currentContentSizeIdentifier = ADBannerContentSizeIdentifierPortrait;

    adViewTwo = [[ADBannerView alloc] initWithFrame:CGRectZero];
    adViewTwo.frame = CGRectOffset(adView.frame, 0, 530);
    adViewTwo.requiredContentSizeIdentifiers = [NSSet setWithObject:ADBannerContentSizeIdentifierPortrait];
    adViewTwo.currentContentSizeIdentifier = ADBannerContentSizeIdentifierPortrait;

    [self.view addSubview:adView];
    [self.view addSubview:adViewTwo];

    adView.delegate=self;
    adViewTwo.delegate=self;

    self.bannerIsVisible=NO;
    self.bannerTwoIsVisible=NO;
}


- (void)bannerViewDidLoadAd:(ADBannerView *)banner
{
    if (!self.bannerIsVisible)
    {
        [UIView beginAnimations:@"animateAdBannerOn" context:NULL];
        banner.frame = CGRectOffset(banner.frame, 0, 94);
        [UIView commitAnimations];
        self.bannerIsVisible = YES;
    }

    if (!self.bannerTwoIsVisible)
    {
        [UIView beginAnimations:@"animateAdBannerOn" context:NULL];
        banner.frame = CGRectOffset(banner.frame, 0, 430);
        [UIView commitAnimations];
        self.bannerTwoIsVisible = YES;
    }
}


- (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
    if (self.bannerIsVisible)
    {
        [UIView beginAnimations:@"animateAdBannerOff" context:NULL];
        banner.frame = CGRectOffset(banner.frame, 0, -50);
        [UIView commitAnimations];
        self.bannerIsVisible = NO;
    }

    if (self.bannerTwoIsVisible)
    {
        [UIView beginAnimations:@"animateAdBannerOff" context:NULL];
        banner.frame = CGRectOffset(banner.frame, 0, 530);
        [UIView commitAnimations];
        self.bannerIsVisible = NO;
    }
}

Answer 1

在委托方法中，您可以通过简单的比较来检查它是关于哪个横幅：

- (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
    if (banner == adView) {
        // do something with banner 1
    }
    else if (banner == adViewTwo) {
        // do something with banner 2
    }
}