didSelectItem not being called - ios

Question

My didSelectItemAt method is not being called and nothing is being printed into the console. I have user interaction turned on and I still can not get it to print out anything. I am not sure if my custom PinterestStyle Layout is causing this or if I am missing something. The ultimate goal would be to segue into a detail view controller showing the profile page of the cell selected. I will do that using prepareForSegue however I still can't even get it to print out the name of the cell when tapped.
class PagesCollectionViewController: UICollectionViewController, firebaseHelperDelegate {
var storageRef: StorageReference!{
return Storage.storage().reference()
}
var usersList = [String]()
var authService : FirebaseHelper!
var userArray : [Users] = []
var images: [UIImage] = []
var names: [String] = []
override func viewWillAppear(_ animated: Bool) {
if Global.Location != "" && Global.Location != nil
{
usersList = Global.usersListSent
print(usersList)
self.authService.ListOfUserByLocation(locationName: Global.Location, type: .ListByLocation)
}
}
override func viewDidLoad() {
self.collectionView?.allowsSelection = true
self.collectionView?.isUserInteractionEnabled = true
super.viewDidLoad()
self.authService = FirebaseHelper(viewController: self)
self.authService.delegate = self
setupCollectionViewInsets()
setupLayout()
}
private func setupCollectionViewInsets() {
collectionView!.backgroundColor = .white
collectionView!.contentInset = UIEdgeInsets(
top: 20,
left: 5,
bottom: 49,
right: 5
)
}
private func setupLayout() {
let layout: PinterestLayout = {
if let layout = collectionViewLayout as? PinterestLayout {
return layout
}
let layout = PinterestLayout()
collectionView?.collectionViewLayout = layout
return layout
}()
layout.delegate = self
layout.cellPadding = 5
layout.numberOfColumns = 2
}
func firebaseCallCompleted(data: AnyObject?, isSuccess: Bool, error: Error?, type: FirebaseCallType) {
if(type == .ListByLocation) {
if(isSuccess) {
self.userArray.removeAll()
self.images.removeAll()
self.images.removeAll()
if(data != nil) {
let dataDict = data as! NSDictionary
let keyArray = dataDict.allKeys
for i in 0 ..< keyArray.count {
var dict = NSDictionary()
dict = dataDict.object(forKey: keyArray[i]) as! NSDictionary
self.userArray.append(Users.init(data: dict))
}
}
self.collectionView?.reloadData()
}
else {
print(error?.localizedDescription)
SVProgressHUD.dismiss()
}
}
}
}
extension PagesCollectionViewController {
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return userArray.count
}
override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
print(userArray[indexPath.row].name)
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(
withReuseIdentifier: "PagesCollectionViewCell",
for: indexPath) as! PagesCollectionViewCell
cell.nameLabel.text = userArray[indexPath.row].name
if let imageOld = URL(string: userArray[indexPath.row].photoURL){
cell.photo.sd_setImage(
with: imageOld,
placeholderImage: nil,
options: [.continueInBackground, .progressiveDownload]
)
}
return cell
}
}
extension PagesCollectionViewController : PinterestLayoutDelegate {
func collectionView(collectionView: UICollectionView,
heightForImageAtIndexPath indexPath: IndexPath,
withWidth: CGFloat) -> CGFloat {
var image: UIImage?
let url = URL(string: userArray[indexPath.row].photoURL)
let data = try? Data(contentsOf: url!)
image = UIImage(data: data!)
return (image?.height(forWidth: withWidth))!
}
func collectionView(collectionView: UICollectionView,
heightForAnnotationAtIndexPath indexPath: IndexPath,
withWidth: CGFloat) -> CGFloat {
return 30
}
}

Answer 1

Check 2 conditions:-
Make sure you have set delegate to UICollectionView
Make sure Content in PageCollectionCell like image having no user interaction enabled. If image user interaction is enabled then didSelectItemAt will not call.

Answer 2

as Manish Mahajan said a quick fix would be:
in cellForItemAt func set contentView as not clickable
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)
cell.contentView.isUserInteractionEnabled = false
return cell
}