ADBannerView低于UITableViewController

Question

我想将iAd横幅集成在tableView下面的UItableViewController中。目标是调整表视图的大小，并将其添加到UIViewController的底部，在本例中为UITableViewController。我开始考虑adBannerView是一个UIView，所以我在下面为一个UIView编写了代码，它成功了，但是当我试图用一个ADBannerView替换它时，它不会发生。ADBanner出现在正确的位置，但tableView大小丢失。

有人能试着理解原因并帮我找到更好的解决方案吗？不使用footerView是可行的吗？

这是密码。目前是Utils类中的静态方法。接下来，我将在另一个上下文中使用它，但是您应该能够轻松地自己测试它。

class ViewControllerUtils {
    class func showBanner<C:UIViewController where C:ADBannerViewDelegate> ( viewController:C)  {

        println("*** showBanner isLandscape:\(UIDevice.currentDevice().orientation.isLandscape)")

        // you don't care about it for the moment.
        var bannerHeight:CGFloat = 50.0
        if UIDevice.currentDevice().userInterfaceIdiom == UIUserInterfaceIdiom.Pad{
            bannerHeight = 66.0
        } else if UIDevice.currentDevice().orientation.isLandscape {
            bannerHeight = 32.0
        }
        println("bannerHeight: \(bannerHeight)")

        // created a local variable in order to update the original frame
        var viewFrame  = viewController.view.frame

        UIView.animateWithDuration(1.0, animations: { () -> Void in
                        println("viewFrame \(viewFrame)")

            viewFrame.size.height -= bannerHeight
            viewController.view.frame = viewFrame
            println("viewFrame \(viewFrame)")

            }) { (ended:Bool) -> Void in

                var x = CGPoint(x: viewFrame.origin.x, y: viewFrame.origin.y + viewFrame.size.height)
                var bannerFrame = CGRect(origin:  x, size: CGSize(width: viewFrame.size.width, height: bannerHeight))

                var container = UIView(frame: bannerFrame)
                container.backgroundColor = UIColor.redColor()

                //without this line it works like expected.
                //with it tableview resizing is not applied anymore
                container.addSubview(ADBannerView(frame: CGRect(origin:  CGPointZero, size: CGSize(width: viewFrame.size.width, height: bannerHeight))))

                viewController.view.superview?.addSubview(container)
        }

    }

}

Answer 1

如果只需要TableViewController底部的横幅，就可以使用预构建的行为，将canDisplayBannerAds设置为true，如下所示：

import UIKit
import iAd

class MainViewController: UITableViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        self.canDisplayBannerAds = true
    }

}