如何为iAd创建全局引用并在多个Viewcontrollers中实现

时间:2012-05-08 13:35:25

标签: objective-c xcode ios5 iad

  

我每个都有5个ViewControllers,我必须显示iAd,所以我必须在每个ViewControllers中实现iAd代码。而不是如果我在AppDelegate中创建公共代码集意味着我可以只在我需要iAd显示的地方调用该代码。

如果有人实施了这个iAd概念意味着帮助我摆脱这个问题。在此先感谢。

3 个答案:

答案 0 :(得分:5)

只需在APP委托中创建一个指向iAD的指针。

·H:

@property (strong, nonatomic) ADBannerView *UIiAD;

的.m:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    UIiAD = [[ADBannerView alloc] init];
    return YES;
} 

然后在ViewControllers中执行以下操作:

·H:

@property (strong, nonatomic) ADBannerView *UIiAD;

的.m:

- (AppDelegate *) appdelegate {
    return (AppDelegate *)[[UIApplication sharedApplication] delegate];
}

- (void) viewWillAppear:(BOOL)animated {
    UIiAD = [[self appdelegate] UIiAD];
    UIiAD.delegate=self;
   // CODE to correct the layout
}

- (void) viewWillDisappear:(BOOL)animated{
    UIiAD.delegate=nil;
    UIiAD=nil;
    [UIiAD removeFromSuperview];
}

为所有视图控制器执行此操作,并使用适当的代码重新设计布局!

答案 1 :(得分:1)

嗨,这看起来很好,但你不必在你的m文件中导入AppDelegate

#import "AppDelegate.h" 

如果没有网络连接或添加不显示

,则不应隐藏添加

答案 2 :(得分:0)

在AppDelegate.h中:

#import <iAd/iAd.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>
{
    ADBannerView *_bannerView;
...
...
}

@property (nonatomic, retain) ADBannerView *_bannerView;

在AppDelegate.m中:

@synthesize _bannerView;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
...
    if ([ADBannerView instancesRespondToSelector:@selector(initWithAdType:)]) {
        self._bannerView = [[ADBannerView alloc] initWithAdType:ADAdTypeBanner];
    } else {
        self._bannerView = [[ADBannerView alloc] init];
    }
...
}

在需要添加iAd的视图控制器中,创建名为“vwAd”的容器UIView,并在xib文件中建立要显示iAd的连接。

@interface ViewController : UIViewController<ADBannerViewDelegate>
{
    IBOutlet UIView *vwAd;
...
...
}

- (void)layoutAnimated:(BOOL)animated
{
    CGRect contentFrame = self.view.bounds;
    if (contentFrame.size.width < contentFrame.size.height) {
        self.appDelegate._bannerView.currentContentSizeIdentifier = ADBannerContentSizeIdentifierPortrait;
    } else {
        self.appDelegate._bannerView.currentContentSizeIdentifier = ADBannerContentSizeIdentifierLandscape;
    }

    CGRect bannerFrame = self.appDelegate._bannerView.frame;
    if (self.appDelegate._bannerView.bannerLoaded) {
        bannerFrame.origin.y = 0;
    } else {
        bannerFrame.origin.y = vwAd.frame.size.height;
    }

    [UIView animateWithDuration:animated ? 0.25 : 0.0 animations:^{
        self.appDelegate._bannerView.frame = bannerFrame;
    }];
}


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

    [self.appDelegate._bannerView removeFromSuperview];
    self.appDelegate._bannerView.delegate = nil;
    self.appDelegate._bannerView.delegate = self;
    [vwAd addSubview:self.appDelegate._bannerView];
    [self layoutAnimated:NO];
}

还请查看Apple的iAdSuite示例。原始layoutAnimated函数可以在iAdSuite示例中找到。不要忘记将iAdSuite示例中的委托函数添加到视图控制器中。