'CollectionView delegate methods are not calling from TableViewCell

Screenshot

Delegate isn't being called from tableViewCell. Here is UICollectionViewDelegate and UICollectionViewDataSource code

extension HomeVC:UICollectionViewDataSource,UICollectionViewDelegate,UICollectionViewDelegateFlowLayout{

    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1
    }
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 4
    }
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "ProductCell", for: indexPath)
        return cell

    }
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        print("ok")

    }
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        let lay = collectionViewLayout as! UICollectionViewFlowLayout
        lay.sectionInset = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
        lay.minimumInteritemSpacing = 0
        lay.minimumLineSpacing = 0
        collectionView.collectionViewLayout = lay
        let size = (collectionView.frame.size.width-10) / 2
        return CGSize(width: size, height: size)
    }

}

Solution 1:^[1]

swift 5

//MARK:- Tableview Datasource method

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
 let cell = tableView.dequeueReusableCell(withIdentifier:"RecentLoanApplicationCell") as! RecentLoanApplicationCell
                           
                cell.collectionVC.delegate = self
                cell.collectionVC.dataSource = self
                cell.btnViewAll.addTarget(self, action: #selector(btnViewALLTap(button:)), for: .touchUpInside)
                DispatchQueue.main.async {
                               
                                cell.collectionVC.reloadData()
                 }
                return cell  
}

//MARK:- Tableview Cell in side custom cell Register for collectionView cell

class RecentLoanApplicationCell: UITableViewCell {

@IBOutlet  var collectionVC:UICollectionView!

override func awakeFromNib() {
    super.awakeFromNib()

    self.collectionVC.register(UINib.init(nibName:"RecentLoanCollectionViewCell", bundle: nil), forCellWithReuseIdentifier:"RecentLoanCollectionViewCell")
    
    
    
    }
override func setSelected(_ selected: Bool, animated: Bool) {
    super.setSelected(selected, animated: animated)

}

}

// Same ControllerView  call  
//MARK:- Collection DataSource & Delegate

extension HomeViewController : UICollectionViewDelegate,UICollectionViewDataSource {
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        
            return 5   
    }
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {  
    
let cell = collectionView.dequeueReusableCell(withReuseIdentifier:"RecentLoanCollectionViewCell", for: indexPath) as! RecentLoanCollectionViewCell
        
         return cell
}

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)    {

        debugPrint("didSelectItemAt ==>\(indexPath.row)")
}

Solution 2:^[2]

You need to set datasource and delegate for collectionView, every time in Tableview delegate CellForRowAtIndexPath.

Sources

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Source: Stack Overflow

Solution	Source
Solution 1
Solution 2	Shubham bairagi

'CollectionView delegate methods are not calling from TableViewCell

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]