Collectionview in tableview error : Index out range and cell's content changes when i swipe

Question

I'm I'm trying to show the collectionview in the tableview, but I keep getting the error index out of range, and the contents of the cells change when I scroll.What is this reason ? I tried many different ways but couldn't solve it

View Controller

    var featuresVM = [FeaturesModel]()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        setupUI()
        configure()
    }
    
    
    func setupUI() {
        tableView.register(CustomCell.self, forCellReuseIdentifier: CustomCell.identifier)
        tableView.rowHeight = 200
            
        featuresVM =   [
            
            FeaturesModel(imageName: "images", titleModel: [
            Features(title: "Name", overview: "4"),
            Features(title: "Price", overview: "5"),
            Features(title: "Count", overview: "6"),
            Features(title: "Date", overview: "7")]),

            FeaturesModel(imageName: "images", titleModel: [
            Features(title: "Ürün Adı", overview: "19"),
            Features(title: "Ürün Fiyatı", overview: "20"),
            Features(title: "Ürün Fiyatı", overview: "21"),
            Features(title: "Ürün Fiyatı", overview: "22"),
            Features(title: "Ürün Fiyatı", overview: "23"),
            Features(title: "Ürün Fiyatı", overview: "24"),
            Features(title: "S.K.T", overview: "25")]),
            
            //And more
        ]
    }
}
extension ViewController : UITableViewDataSource,UITableViewDelegate {
    func numberOfSections(in tableView: UITableView) -> Int {
        return featuresVM.count
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }
    
    func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        return featuresVM[section].imageName
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: CustomCell.identifier, for: indexPath) as! CustomCell
        cell.viewModel = featuresVM[indexPath.section].titleModel
        return cell
    }
    
}

CollectionView delegate,datasource

extension CustomCell : UICollectionViewDelegate , UICollectionViewDataSource , UICollectionViewDelegateFlowLayout {

  func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return viewModel.count
  }

  func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
      guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: CollectionViewCell.identifier, for: indexPath) as? CollectionViewCell else {
         return UICollectionViewCell()
      }
      cell.titleView.text = viewModel[indexPath.row].title
      cell.overView.text = viewModel[indexPath.row].overview
      return cell
  }

  func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
      return CGSize(width: baseCollectionView.bounds.width / 2 , height: baseCollectionView.bounds.height)
  }

  func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
      return 0
  }

}

Answer 1

I solve this problem , this problem reason collectionview datasource and delegate tableviewcell . I defined it in viewcontroller collectionview delegate and datasource and solved.