Henry Agyei
v
class controller: UICollectionViewController, UICollectionViewDelegateFlowLayout, GADNativeExpressAdViewDelegate {
var collectionViewItems = [AnyObject]()
var adsToLoad = [GADNativeExpressAdView]()
var loadStateForAds = [GADNativeExpressAdView: Bool]()
let adUnitID = "ca-app-pub-3710924718089875/7954396940"
let adInterval = 2
private let cellId = "cellId"
let adMobCellId = "adMobCellId"
let adViewHeight = CGFloat(350)
var testimonials = [Testimonials]()
override func viewDidLoad() {
super.viewDidLoad()
collectionView?.registerClass(LoaderFeed, forCellWithReuseIdentifier: cellId)
collectionView?.registerClass(AdMobCell.self, forCellWithReuseIdentifier: adMobCellId)
fetchTestimonials()
adNativeExpressAds
preloadNextAd()
}
override func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(collectionView: UICollectionView,
layout collectionViewLayout: UICollectionViewLayout,
sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
let height = (view.frame.width) * 9 / 16
if let collectionViewItem = collectionViewItems[indexPath.item] as? GADNativeExpressAdView {
let isAdLoaded = loadStateForAds[collectionViewItem]
return isAdLoaded == true ? CGSize(width: collectionView.frame.width, height: 350) : CGSize(width: 0, height: 0)
} else {
return CGSize(width: collectionView.frame.width, height: 350)
}
}
override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
print(collectionViewItems.count)
return collectionViewItems.count
}
func loadFromServer() {
let ref = FIRDatabase.database().reference().child("loadData")
ref.queryOrderedByChild("reverseTimestamp").observeEventType(.ChildAdded, withBlock: { (snapshot) in
guard let dictionary = snapshot.value as? [String: AnyObject] else { return}
let testimonial = LoadServer()
testimonial.id = dictionary["id"] as? String
self.tableViewItems.append(testimonial)
self.tableView?.reloadData()
}, withCancelBlock: nil)
}
override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
print(collectionViewItems.count)
if let nativeExpressAdView = collectionViewItems[indexPath.item] as? GADNativeExpressAdView {
let reusableAdCell = collectionView.dequeueReusableCellWithReuseIdentifier(adMobCellId, forIndexPath: indexPath) as! AdMobCell
// Remove previous GADNativeExpressAdView from the content view before adding a new one.
for subview in reusableAdCell.contentView.subviews {
subview.removeFromSuperview()
}
reusableAdCell.contentView.addSubview(nativeExpressAdView)
// Center GADNativeExpressAdView in the table cell's content view.
nativeExpressAdView.center = reusableAdCell.contentView.center
let videoOptions = GADVideoOptions()
videoOptions.startMuted = false
nativeExpressAdView.setAdOptions([videoOptions])
return reusableAdCell
}
else {
let testimonial = collectionViewItems[indexPath.item]
let cell = collectionView.dequeueReusableCellWithReuseIdentifier(cellId, forIndexPath: indexPath) as! TestimonialsFeed
return cell
}
}
func nativeExpressAdViewDidReceiveAd(nativeExpressAdView: GADNativeExpressAdView) {
loadStateForAds[nativeExpressAdView] = true
preloadNextAd()
}
func nativeExpressAdView(nativeExpressAdView: GADNativeExpressAdView,
didFailToReceiveAdWithError error: GADRequestError) {
print("Failed to receive ad: \(error.localizedDescription)")
preloadNextAd()
}
//***Problem here in the code loops through continuously and does not load page
func addNativeExpressAds() {
var index = adInterval
print(collectionViewItems.count)
collectionView?.layoutIfNeeded()
while index < collectionViewItems.count {
let adSize = GADAdSizeFromCGSize(
CGSize(width: (collectionView!.contentSize.width), height: adViewHeight))
guard let adView = GADNativeExpressAdView(adSize: adSize) else {
print("GADNativeExpressAdView failed to initialize at index \(index)")
return
}
adView.adUnitID = adUnitID
adView.rootViewController = self
adView.delegate = self
collectionViewItems.insert(adView, atIndex: index)
//adsToLoad.append(adView)
loadStateForAds[adView] = false
index += adInterval
}
}
func preloadNextAd() {
if !adsToLoad.isEmpty {
let ad = adsToLoad.removeFirst()
ad.loadRequest(GADRequest())
}
}
