Question

我使用ADBannerView加载广告，并使用bannerLoaded属性来检测结果。 bannerLoaded始终为NO，但ADBannerView实际上成功加载了广告（我在if语句中反向bannerLoaded来证明这一点）。并且bannerView：didFailToReceiveAdWithError：不记录任何错误。

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    [self load_iAd];
}

- (void)load_iAd
{
    //init iAd
    // On iOS 6 ADBannerView introduces a new initializer, use it when available.
    if ([ADBannerView instancesRespondToSelector:@selector(initWithAdType:)]) {
        _bannerView = [[ADBannerView alloc] initWithAdType:ADAdTypeBanner];
    } else {
        _bannerView = [[ADBannerView alloc] init];
    }
    _bannerView.delegate = self;
    [self.view addSubview:_bannerView];

    if (_bannerView==nil) {
        NSLog(@"ad view is nil");
    }

    //place iAd
    CGRect contentFrame = self.view.bounds;

    // all we need to do is ask the banner for a size that fits into the layout area we are using
    CGSize sizeForBanner = [_bannerView sizeThatFits:contentFrame.size];

    // compute the ad banner frame
    CGRect bannerFrame = _bannerView.frame;
    NSLog(@"_bannerView.bannerLoaded %f",_bannerView.bannerLoaded);
    if (_bannerView.bannerLoaded) {

        // bring the ad into view
        contentFrame.size.height -= sizeForBanner.height;   // shrink down content frame to fit the banner below it
        bannerFrame.origin.y = contentFrame.size.height;
        bannerFrame.size.height = sizeForBanner.height;
        bannerFrame.size.width = sizeForBanner.width;

        // if the ad is available and loaded, shrink down the content frame to fit the banner below it,
        // we do this by modifying the vertical bottom constraint constant to equal the banner's height
        //
        NSLayoutConstraint *verticalBottomConstraint = self.bottomConstraint;
        verticalBottomConstraint.constant = sizeForBanner.height;
        NSLog(@"verticalBottomConstraint.constant:%f",verticalBottomConstraint.constant);
        [self.view layoutSubviews];

    } else {
        // hide the banner off screen further off the bottom
        bannerFrame.origin.y = contentFrame.size.height;
        NSLog(@"no iAd");
    }

    [UIView animateWithDuration:0.25 animations:^{

        [self.view layoutIfNeeded];
        _bannerView.frame = bannerFrame;
    }];
    }

- (void)bannerView:(ADBannerView *)banner
didFailToReceiveAdWithError:(NSError *)error
{
    NSLog(@"error:%@",error);
}

Answer 1

我认为，如果初始化_bannerView，则未加载，bannerLoaded属性为NO的原因。

最好你可以在ADBannerView的委托方法上执行隐藏和显示横幅视图，例如在你的情况下

- (void)load_iAd
 {
    //init iAd
    // On iOS 6 ADBannerView introduces a new initializer, use it when available.
    if ([ADBannerView instancesRespondToSelector:@selector(initWithAdType:)]) {
       _bannerView = [[ADBannerView alloc] initWithAdType:ADAdTypeBanner];
    } else {
       _bannerView = [[ADBannerView alloc] init];
    }
    _bannerView.delegate = self;
    [self.view addSubview:_bannerView];

    if (_bannerView==nil) {
       NSLog(@"ad view is nil");
    }
}

//in the delegate method of ADBannerView 
//int this delegate method better not show banner
- (void)bannerViewWillLoadAd:(ADBannerView *)banner
 {
   _bannerView.hidden = YES;
    NSLog(@"banner view will loaded");
 }

 //this is the rite time to show banner view and animations to show banner view 
 - (void)bannerViewDidLoadAd:(ADBannerView *)banner
{
    _bannerView.hidden = NO;
   //place iAd
   CGRect contentFrame = self.view.bounds;

   // all we need to do is ask the banner for a size that fits into the layout area we are using
   CGSize sizeForBanner = [_bannerView sizeThatFits:contentFrame.size];

   // compute the ad banner frame
   CGRect bannerFrame = _bannerView.frame;

     // bring the ad into view
    contentFrame.size.height -= sizeForBanner.height;   // shrink down content frame to fit the banner below it
    bannerFrame.origin.y = contentFrame.size.height;
    bannerFrame.size.height = sizeForBanner.height;
    bannerFrame.size.width = sizeForBanner.width;

    // if the ad is available and loaded, shrink down the content frame to fit the banner below it,
    // we do this by modifying the vertical bottom constraint constant to equal the banner's height
    //
    NSLayoutConstraint *verticalBottomConstraint = self.bottomConstraint;
    verticalBottomConstraint.constant = sizeForBanner.height;
    NSLog(@"verticalBottomConstraint.constant:%f",verticalBottomConstraint.constant);
    [self.view layoutSubviews];

    [UIView animateWithDuration:0.25 animations:^{

    [self.view layoutIfNeeded];
    _bannerView.frame = bannerFrame;
    }];
}

//int this delegate method better hide the banner view
- (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
 {
 _bannerView.hidden = YES;
 NSLog(@"banner view did't load");
 //hear goes hide animations for banner view 
 //....code to hide banner

 }

并且我还建议使用横幅视图的共享对象，如果您在应用程序中的某些其他视图控制器中使用横幅，它将使用完整....

希望这有助于你......：）

iAd成功加载广告，但横幅加载属性为NO

1 个答案: