关闭iAd横幅后，我的视图仍处于横向模式，但我的应用仅支持纵向

Question

我正在我的iPad应用程序中实现iAd横幅它加载得很好，但是当我点击它时，它会将我的应用方向更改为横向，并且在关闭添加后它保持横向模式，我应该在纵向模式中。我怎么能解决这个问题我正在使用iOS 7 sdks

这是我的代码

#pragma mark - AdBannerViewDelegate method implementation

-(void)bannerViewWillLoadAd:(ADBannerView *)banner{
NSLog(@"Ad Banner will load ad.");
}


-(void)bannerViewDidLoadAd:(ADBannerView *)banner{
NSLog(@"Ad Banner did load ad.");

// Show the ad banner.
[UIView animateWithDuration:0.5 animations:^{
    self.adBanner.alpha = 1.0;
}];
}


-(BOOL)bannerViewActionShouldBegin:(ADBannerView *)banner willLeaveApplication:(BOOL)willLeave{
NSLog(@"Ad Banner action is about to begin.");

//    self.pauseTimeCounting = YES;

return YES;
}


-(void)bannerViewActionDidFinish:(ADBannerView *)banner{
NSLog(@"Ad Banner action did finish");


//    self.pauseTimeCounting = NO;
}


-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error{
NSLog(@"Unable to show ads. Error: %@", [error localizedDescription]);

// Hide the ad banner.
[UIView animateWithDuration:0.5 animations:^{
    self.adBanner.alpha = 0.0;
}];
}