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copied!<p>I use a singleton for an ad banner and call it into view on each ViewDidLoad. This automatically removes it from the previous view.</p> <p>This is for adWhirl, but you should be able to adopt it for just iAD.</p> <p>adWhirlSingleton.h</p> <pre><code>#import <Foundation/Foundation.h> #import "AdWhirlDelegateProtocol.h" #import "AdWhirlView.h" @interface adWhirlSingleton : NSObject <AdWhirlDelegate> { AdWhirlView *awView; UIViewController *displayVC; } @property (strong, nonatomic) AdWhirlView *awView; @property (strong, nonatomic) UIViewController *displayVC; +(id)sharedAdSingleton; -(void)adjustAdSize:(CGFloat)x:(CGFloat)y; @end </code></pre> <p>adWhirlSingleton.m</p> <pre><code>#import "adWhirlSingleton.h" @implementation adWhirlSingleton static adWhirlSingleton* _sharedAdSingleton = nil; @synthesize awView, displayVC; +(id)sharedAdSingleton { @synchronized(self) { if(!_sharedAdSingleton) _sharedAdSingleton = [[self alloc] init]; return _sharedAdSingleton; } return nil; } +(id)alloc { @synchronized([adWhirlSingleton class]) { NSAssert(_sharedAdSingleton == nil, @"Attempted to allocate a second instance of a singleton."); _sharedAdSingleton = [super alloc]; return _sharedAdSingleton; } return nil; } -(id)init { self = [super init]; if (self != nil) { // initialize stuff here self.awView = [AdWhirlView requestAdWhirlViewWithDelegate:self]; } return self; } -(void)dealloc { displayVC = nil; if (awView) { [awView removeFromSuperview]; //Remove ad view from superview [awView replaceBannerViewWith:nil]; [awView ignoreNewAdRequests]; // Tell adwhirl to stop requesting ads [awView setDelegate:nil]; awView = nil; } } -(void)adjustAdSize:(CGFloat)x :(CGFloat)y { [UIView beginAnimations:@"AdResize" context:nil]; [UIView setAnimationDuration:0.7]; awView.frame = CGRectMake(x, y, kAdWhirlViewWidth, kAdWhirlViewHeight); [UIView commitAnimations]; NSLog(@"Recent Network Name: %@",[awView mostRecentNetworkName]); } -(BOOL)adWhirlTestMode { return YES; } -(NSString *)adWhirlApplicationKey { return @"xxxxxxxxxxxxx"; } -(UIViewController *)viewControllerForPresentingModalView { return displayVC; } -(void)adWhirlDidReceiveAd:(AdWhirlView *)adWhirlView { NSLog(@"%s",__FUNCTION__); NSLog(@"Recent Network Name: %@",[awView mostRecentNetworkName]); //[self adjustAdSize]; } -(void)adWhirlDidFailToReceiveAd:(AdWhirlView *)adWhirlView usingBackup:(BOOL)yesOrNo { NSLog(@"%s",__FUNCTION__); } @end </code></pre> <p>Then import adWhirlSingleton into each ViewController and in each viewWillAppear i just implement this:</p> <pre><code>adWhirlSingleton *adWhirlSingle = [adWhirlSingleton sharedAdSingleton]; adWhirlSingle.displayVC = self; [adWhirlSingle adjustAdSize:0 :self.view.frame.size.height -50]; [self.view addSubview:adWhirlSingle.awView]; [self.view bringSubviewToFront:adWhirlSingle.awView]; NSLog(@"Ad Banner View"); </code></pre> <p>but the view I have with a UITableView, I use this:</p> <pre><code>adWhirlSingleton *adWhirlSingle = [adWhirlSingleton sharedAdSingleton]; adWhirlSingle.displayVC = self; [adWhirlSingle adjustAdSize:0 :self.tabBarController.view.frame.size.height -99]; [self.tabBarController.view addSubview:adWhirlSingle.awView]; NSLog(@"Should have added Ad!"); </code></pre> <p>Hope that helps you a bit</p>

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