如何在Swift中实现间隙iAds (Xcode6.1)

Question

我正在尝试弄清楚如何从横幅视图iAds切换到interstitial iAds，以便为选项卡式控制器腾出空间。由于某些原因，我完全找不到任何资源，甚至无法开始使用swift的这些广告。

谁能给我一些关于Swift的interstitial iAds的信息，以及我如何在项目中实现它们。

Answer 1

这里是一种相对干净和容易遵循的实现间隙广告的方法，因为这种方法不需要使用NSNotificationCentre

import UIKit
import iAd

class ViewController: UIViewController, ADInterstitialAdDelegate {
var interstitialAd:ADInterstitialAd!
var interstitialAdView: UIView = UIView()

override func viewDidLoad() {
    super.viewDidLoad()

    loadInterstitialAd()
}

func loadInterstitialAd() {
    interstitialAd = ADInterstitialAd()
    interstitialAd.delegate = self
}

func interstitialAdWillLoad(interstitialAd: ADInterstitialAd!) {

}

func interstitialAdDidLoad(interstitialAd: ADInterstitialAd!) {
    interstitialAdView = UIView()
    interstitialAdView.frame = self.view.bounds
    view.addSubview(interstitialAdView)

    interstitialAd.presentInView(interstitialAdView)
    UIViewController.prepareInterstitialAds()
}

func interstitialAdActionDidFinish(interstitialAd: ADInterstitialAd!) {
    interstitialAdView.removeFromSuperview()
}

func interstitialAdActionShouldBegin(interstitialAd: ADInterstitialAd!, willLeaveApplication willLeave: Bool) -> Bool {
    return true
}

func interstitialAd(interstitialAd: ADInterstitialAd!, didFailWithError error: NSError!) {

}

func interstitialAdDidUnload(interstitialAd: ADInterstitialAd!) {
    interstitialAdView.removeFromSuperview()
}

如果你把println("Function Name")放在每个函数中，仅仅是为了跟踪你的间隙广告过程，这可能会有所帮助。如果你有任何问题，或者有办法改进这段代码，请留下评论。谢谢

Answer 2

下面是我如何在我的项目中使用

//添加iAd框架

 import iAd

//符合iAd委托

class ViewController: UIViewController,ADInterstitialAdDelegate 


//create instance variable
var interstitial:ADInterstitialAd!

//默认的iAd interstitials不提供close按钮，需要手动创建一个

var placeHolderView:UIView!
var closeButton:UIButton!



override func viewDidLoad() {
    super.viewDidLoad()

    //iAD interstitial
    NSNotificationCenter.defaultCenter().addObserver(self, selector: ("runAd:"),    name:UIApplicationWillEnterForegroundNotification, object: nil)

}




//iAD interstitial
func runAd(notification:NSNotification){
var timer = NSTimer.scheduledTimerWithTimeInterval(3.0, target: self, selector: Selector("dislayiAdInterstitial"), userInfo: nil, repeats: false)
cycleInterstitial()
}

func cycleInterstitial(){

    // Clean up the old interstitial...
    //  interstitial.delegate = nil;
    // and create a new interstitial. We set the delegate so that we can be notified of when
    interstitial = ADInterstitialAd()
    interstitial.delegate = self;
}

func presentInterlude(){
    // If the interstitial managed to load, then we'll present it now.
    if (interstitial.loaded) {

        placeHolderView = UIView(frame: self.view.frame)
        self.view.addSubview(placeHolderView)

        closeButton = UIButton(frame: CGRect(x: 270, y:  25, width: 25, height: 25))
        closeButton.setBackgroundImage(UIImage(named: "error"), forState: UIControlState.Normal)
        closeButton.addTarget(self, action: Selector("close"), forControlEvents: UIControlEvents.TouchDown)
        self.view.addSubview(closeButton)


        interstitial.presentInView(placeHolderView)
    }
}

// iAd Delegate Mehtods

// When this method is invoked, the application should remove the view from the screen and tear it down.
// The content will be unloaded shortly after this method is called and no new content will be loaded in that view.
// This may occur either when the user dismisses the interstitial view via the dismiss button or
// if the content in the view has expired.

func interstitialAdDidUnload(interstitialAd: ADInterstitialAd!){
    placeHolderView.removeFromSuperview()
    closeButton.removeFromSuperview()
    interstitial = nil

    cycleInterstitial()
}


func interstitialAdActionDidFinish(_interstitialAd: ADInterstitialAd!){
    placeHolderView.removeFromSuperview()
    closeButton.removeFromSuperview()
    interstitial = nil

    println("called just before dismissing - action finished")

}

// This method will be invoked when an error has occurred attempting to get advertisement content.
// The ADError enum lists the possible error codes.
func interstitialAd(interstitialAd: ADInterstitialAd!,
    didFailWithError error: NSError!){
        cycleInterstitial()
}


//Load iAd interstitial
func dislayiAdInterstitial() {
    //iAd interstitial
    presentInterlude()
}


func close() {
    placeHolderView.removeFromSuperview()
    closeButton.removeFromSuperview()
    interstitial = nil

}

Answer 3

我知道这很老套-但我只是偶然发现

override func prepareForSegue(segue: UIStoryboardSegue, 
               sender: AnyObject?) {

let destination = segue.destinationViewController 
            as UIViewController
destination.interstitialPresentationPolicy = 
    ADInterstitialPresentationPolicy.Automatic
}