Collectionview in a TableView - How to select item? - ios

Question

I have made a CollectionView in a TableView for vertical and horizontal scrolling and customisable cells. This works so far. The problem is: I can't select an item of the CollectionView. I think the problem could be something with the delegate outlets but I could't find a solution.
I'm pretty new with Swift, so maybe I overlook something obvious.
My TableViewController:
import UIKit
class HomeVTwoTableViewController: UITableViewController {
var headers = ["Live", "Friends", "Last commented"]
#IBAction func cancelBtnPressed(_ sender: UIBarButtonItem) {
self.dismiss(animated: true, completion: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
}
override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return headers[section]
}
override func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int){
view.tintColor = UIColor.black
let header = view as! UITableViewHeaderFooterView
if section == 0 {
header.textLabel?.textColor = UIColor.black
view.tintColor = UIColor.white
}
else {
view.tintColor = UIColor.groupTableViewBackground
}
}
override func numberOfSections(in tableView: UITableView) -> Int {
return headers.count
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellBig", for: indexPath) as! HomeVTwoTableViewCell
return cell
}
else if indexPath.section == 1 {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellSmall", for: indexPath) as! HomeVTwoTableViewCellSmall
return cell
}
else {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellSmall", for: indexPath) as! HomeVTwoTableViewCellSmall
return cell
}
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
if indexPath.section == 0 {
return 225.0
}
else {
return 120.0
}
}
}
My TableViewCell with the CollectionView:
import UIKit
class HomeVTwoTableViewCell: UITableViewCell, UICollectionViewDataSource, UICollectionViewDelegate {
#IBOutlet weak var collectionView: UICollectionView!
fileprivate var images = [UIImage]()
{
didSet
{
self.collectionView.reloadData()
}
}
func setup(for images: [UIImage])
{
self.images = images
}
override func layoutSubviews() {
collectionView.dataSource = self
}
func numberOfSections(in collectionView: UICollectionView) -> Int
{
return communityName.count
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int
{
return communityName.count
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
print("didSelect")
selectedCommunity = communityId[indexPath.row]
let home = HomeViewController()
home.showCommunityDetail()
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell
{
guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "collectionCellBig", for: indexPath) as? HomeVTwoCollectionViewCell else
{
fatalError("Cell has wrong type")
}
//cell.imageView.image = image
cell.titleLbl.text = communityName[indexPath.row]
cell.imageView.downloadedFrom(link :"deleted because privat")
return cell
}
}
My CollectionViewCell:
import UIKit
class HomeVTwoCollectionViewCell: UICollectionViewCell {
#IBOutlet weak var imageView: UIImageView!
#IBOutlet weak var titleLbl: UILabel!
}

Answer 1

You need to set delegate and dataSource like this
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
collectionView.dataSource = self
collectionView.delegate = self
}

Answer 2

I think you missed this line. Just add, it will work fine collectionView.delegate = self

Answer 3

You have not confirm delegate of collection view.
override func layoutSubviews() {
collectionView.dataSource = self
collectionView.delegate = self
}