修改
感谢@LeoNatan我现在有了一个完整的解决方案。如果有人发现了这个并想要解决方案，可以在GitHub上找到。
原始问题
我试图在ADBannerView上方显示iAd（或任何其他视图，尽管可能特定于UITabBar）。我已经采用了几种不同的方法来实现这一目标，但我们还没有找到满足以下条件的解决方案：
UITableView s insets正确更新我迄今为止唯一有效的解决方案是将UITableView置于UIViewController内，并将UITableView和ADBannerView添加到{{1} view的属性。我离开了这个有两个原因：
UIViewController未将其边缘延伸到底部UITableView UITabBar，而不是UITableViewController 我的UIViewController和bannerView属性上有AppDelegate属性，用于决定是否显示iAd，以及共享单个实例。然后，shouldShowBannerView会在显示或隐藏iAd时发出通知（即，当加载iAd时以及用户付费移除iAd时）。 ＆＃34;基地＆＃34;代码的工作原理如下：
AppDelegate然后我会检查我的func showiAds(animated: Bool) {
if !self.showingiAd {
let delegate = UIApplication.sharedApplication().delegate as AppDelegate
if let bannerView = delegate.bannerView {
println("Showing iAd")
self.showingiAd = true
if (bannerView.superview != self.view) {
bannerView.removeFromSuperview()
}
// let bannersSuperview = self.view.superview! // Bottom inset incorrect
let bannersSuperview = self.view // Banner is shown at the top screen. Crashes on iOS 7 (at bannersSuperview.layoutIfNeeded())
// let bannersSuperview = self.tableView // The is the same as self.view (duh)
// let bannersSuperview = self.tabBarController!.view // Bottom inset incorrect
// Added the view and the left/right constraints allow for the proper height
// to be returned when bannerView.frame.size.height is called (iOS 7 fix mainly)
bannersSuperview.addSubview(bannerView)
bannersSuperview.addConstraints([
NSLayoutConstraint(item: bannerView, attribute: .Left, relatedBy: .Equal, toItem: bannersSuperview, attribute: .Left, multiplier: 1, constant: 0),
NSLayoutConstraint(item: bannerView, attribute: .Right, relatedBy: .Equal, toItem: bannersSuperview, attribute: .Right, multiplier: 1, constant: 0),
])
bannersSuperview.layoutIfNeeded()
let bannerViewHeight = bannerView.frame.size.height
var offset: CGFloat = -self.bottomLayoutGuide.length
if (UIDevice.currentDevice().systemVersion as NSString).floatValue < 8 {
// Seems to be needed for some reason
offset -= bannerViewHeight
}
let bannerBottomConstraint = NSLayoutConstraint(item: bannerView, attribute: .Bottom, relatedBy: .Equal, toItem: bannersSuperview, attribute: .Bottom, multiplier: 1, constant: offset + bannerViewHeight)
// self.bannerBottomConstraint = bannerBottomConstraint
bannersSuperview.addConstraint(bannerBottomConstraint)
bannersSuperview.layoutSubviews()
// bannerSuperview.setNeedsLayout()
bannersSuperview.layoutIfNeeded()
// Previously, this values was the height of the banner view, so that it starts off screen.
// Setting this to 0 and then doing an animation makes it slide in from below
bannerBottomConstraint.constant = offset
bannersSuperview.setNeedsUpdateConstraints()
UIView.animateWithDuration(animated ? 10 : 0, animations: { () -> Void in
// Calling layoutIfNeeded here will animate the layout constraint cosntant change made above
bannersSuperview.layoutIfNeeded()
})
} else {
println("Cannot show iAd when bannerView is nil")
}
}
}
func hideiAds() {
if self.showingiAd {
self.showingiAd = false
let delegate = UIApplication.sharedApplication().delegate as AppDelegate
if let bannerView = delegate.bannerView {
if bannerView.superview == self.view {
bannerView.removeFromSuperview()
}
}
}
}
和viewWillAppear:方法是否应该显示iAds，并根据需要调用viewDidDisappear:和showiAds(false)。
无论我做什么，我似乎都无法让它发挥作用。我尝试过的其他一些事情却废弃了以下代码：
hideiAds()中添加iAd，然后警告显示/隐藏iAd的UITabBarController。修改内容/滚动指示符插入不正常，并由UITableViewController更改为适合导航/标签栏上方/下方。UITableViewController中模拟（使用（顶部|底部）布局指南），我无法使其保持一致，但这看起来非常昂贵？< / LI>
viewDidLayoutSubviews内添加了ADBannerView到某些视图，但是它确实在iOS 7上崩溃了tableView必须调用super -layoutSubviews）修改
我创建了一个UITableViewController子类，目的是通过UIViewController使用它来容纳UITableViewControllers。以下是我到目前为止所做的一些问题：
Container View到目前为止的问题：
class AdvertContainerViewController: UIViewController {
var tableViewController: UITableViewController?
var showingiAd = false
var bannerBottomConstraint: NSLayoutConstraint?
private var bannerTopOffset: CGFloat {
get {
var offset: CGFloat = 0
if let tabBar = self.tabBarController?.tabBar {
offset -= CGRectGetHeight(tabBar.frame)
}
if let bannerView = AppDelegate.instance.bannerView {
let bannerViewHeight = bannerView.frame.size.height
offset -= bannerViewHeight
}
return offset
}
}
override func viewDidLoad() {
super.viewDidLoad()
if self.childViewControllers.count > 0 {
if let tableViewController = self.childViewControllers[0] as? UITableViewController {
self.tableViewController = tableViewController
tableViewController.automaticallyAdjustsScrollViewInsets = false
self.navigationItem.title = tableViewController.navigationItem.title
}
}
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
if AppDelegate.instance.shouldShowBannerView {
self.showiAds(false)
}
}
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
let delegate = AppDelegate.instance
NSNotificationCenter.defaultCenter().addObserver(self, selector: "showiAds", name: "BannerViewDidLoadAd", object: delegate)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "hideiAds", name: "RemoveBannerAds", object: delegate)
}
override func viewDidDisappear(animated: Bool) {
super.viewDidDisappear(animated)
if self.showingiAd {
self.hideiAds()
}
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
println("View did layout subviews")
if self.showingiAd {
if let bannerView = AppDelegate.instance.bannerView {
let bannerViewHeight = CGRectGetHeight(bannerView.frame)
if let bottomConstraint = self.bannerBottomConstraint {
let bannerTopOffset = self.bottomLayoutGuide.length + bannerViewHeight
if bottomConstraint.constant != bannerTopOffset {
println("Setting banner top offset to \(bannerTopOffset)")
bottomConstraint.constant = -bannerTopOffset
bannerView.superview?.setNeedsUpdateConstraints()
bannerView.superview?.updateConstraintsIfNeeded()
}
}
println("Bottom layout guide is \(self.bottomLayoutGuide.length)")
let insets = UIEdgeInsetsMake(self.topLayoutGuide.length, 0, self.bottomLayoutGuide.length + bannerViewHeight, 0)
self.updateTableViewInsetsIfRequired(insets)
}
}
}
private func updateTableViewInsetsIfRequired(insets: UIEdgeInsets) {
if let tableView = self.tableViewController?.tableView {
if !UIEdgeInsetsEqualToEdgeInsets(tableView.contentInset, insets) {
println("Updating content insets to \(insets.top), \(insets.bottom)")
tableView.contentInset = insets
}
if !UIEdgeInsetsEqualToEdgeInsets(tableView.scrollIndicatorInsets, insets) {
println("Updating scroll insets to \(insets.top), \(insets.bottom)")
tableView.scrollIndicatorInsets = insets
}
}
}
func showiAds() {
self.showiAds(true)
// self.showiAds(false)
}
func showiAds(animated: Bool) {
if !self.showingiAd {
let delegate = UIApplication.sharedApplication().delegate as AppDelegate
if let bannerView = delegate.bannerView {
println("Showing iAd")
self.showingiAd = true
if (bannerView.superview != self.view) {
bannerView.removeFromSuperview()
}
let bannersSuperview = self.view.superview!
// Added the view and the left/right constraints allow for the proper height
// to be returned when bannerView.frame.size.height is called (iOS 7 fix mainly)
bannersSuperview.addSubview(bannerView)
bannersSuperview.addConstraints([
NSLayoutConstraint(item: bannerView, attribute: .Left, relatedBy: .Equal, toItem: bannersSuperview, attribute: .Left, multiplier: 1, constant: 0),
NSLayoutConstraint(item: bannerView, attribute: .Right, relatedBy: .Equal, toItem: bannersSuperview, attribute: .Right, multiplier: 1, constant: 0),
])
bannersSuperview.layoutIfNeeded()
let bannerBottomConstraint = NSLayoutConstraint(item: bannerView, attribute: .Top, relatedBy: .Equal, toItem: bannersSuperview, attribute: .Bottom, multiplier: 1, constant: 0)
self.bannerBottomConstraint = bannerBottomConstraint
bannersSuperview.addConstraint(bannerBottomConstraint)
bannersSuperview.layoutSubviews()
bannersSuperview.layoutIfNeeded()
let topInset = self.navigationController?.navigationBar.frame.size.height ?? 0
let insets = UIEdgeInsetsMake(topInset, 0, -self.bannerTopOffset, 0)
// Previously, this values was the height of the banner view, so that it starts off screen.
// Setting this to 0 and then doing an animation makes it slide in from below
bannerBottomConstraint.constant = self.bannerTopOffset
bannersSuperview.setNeedsUpdateConstraints()
UIView.animateWithDuration(animated ? 0.5 : 0, animations: { () -> Void in
// Calling layoutIfNeeded here will animate the layout constraint cosntant change made above
self.updateTableViewInsetsIfRequired(insets)
bannersSuperview.layoutIfNeeded()
})
} else {
println("Cannot show iAd when bannerView is nil")
}
}
}
func hideiAds() {
if self.showingiAd {
self.showingiAd = false
let delegate = UIApplication.sharedApplication().delegate as AppDelegate
if let bannerView = delegate.bannerView {
if bannerView.superview == self.view {
bannerView.removeFromSuperview()
}
}
}
}
}
作为超级视图会导致轮播self.view 应Leo Natan的请求，我创建了一个repo on GitHub，我将根据我的任何尝试进行更新，并在此解释问题。目前，问题如下：
第一个标签：
第二个标签：
答案 0 :(得分：5)
最佳解决方案是使用视图控制器包含。使用视图控制器子类，它将容纳广告视图和表视图控制器的视图，并将表视图控制器添加为容器视图控制器的子视图。这应该正确地处理内容插入。在容器控制器视图的每个布局上，在定位广告视图后正确定位表控制器视图层次结构。如果您希望隐藏广告视图，只需在容器层次结构中隐藏或删除它，并完全扩展表控制器的视图层次结构。使用层次结构时，请记住始终使用表格控制器view而不是tableView直接使用。
我的回答被改编成以下GitHub回购： https://github.com/JosephDuffy/iAdContainer
答案 1 :(得分：1)
最好的是从Apple网站下载AD suite，有tabbar控制器和导航控制器包含示例。
Apple为您提供了一个抽象视图控制器，它可以自行处理ADBanner流程，而不会中断其显示，从而最大限度地延长显示时间。
答案 2 :(得分：0)
您可以使用此https://developer.apple.com/library/ios/samplecode/iAdSuite/Introduction/Intro.html苹果样本并根据您的需要进行修改。例如bool变量，以便在显示或不显示iAd时进行处理。 在代码中，您可以看到包含所有逻辑的BannerViewController类。您也可以在那里编写ADmob代码以供使用。