TableView inside specific UICollectionViewCell programmatically?

For those who need it, i found the solution:

class CustomizedCell: UICollectionViewCell, UITableViewDataSource, UITableViewDelegate {    var tableView = UITableView()    let cellIdentifier: String = "tableCell"    override func layoutSubviews() {        super.layoutSubviews()        tableView.delegate = self        tableView.dataSource = self        tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellIdentifier)    }    func numberOfSections(in tableView: UITableView) -> Int {        return 1    }    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {        return 4    }    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {        let cell: UITableViewCell = UITableViewCell(style: UITableViewCellStyle.value1, reuseIdentifier: cellIdentifier)        cell.textLabel?.text = "1 CUP"        cell.detailTextLabel?.text = "Whole"        return cell    }}

Then at viewDidLoad method at CollectionView i did this:

collectionView?.register(CustomizedCell.self, forCellWithReuseIdentifier: "cell")

And after that i have called like this at cellForRowAt indexPath method of UICollectionView:

override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! CustomizedCell    return cell}

You can create a custom UICollectionView cell for that indexpath. And add a tableview in the cell xib.

Implement the delegate methods of tableview in custom cell class.

 class CustomCollectionViewCell: UICollectionViewCell, UITableViewDataSource, UITableViewDelegate  {    @IBOutlet var tableView: UITableView!    override func layoutSubviews()     {        super.layoutSubviews()        tableView.delegate = self        tableView.dataSource = self    }  }

The approaches above don't work well in with the MVC pattern. I recommend creating an NSObject subclass which conforms to UITableViewDelegate and UITableViewDataSource.

For example:

class DataProvider: NSObject, UITableViewDelegate, UITableViewDataSource {        let dataManager = DataManager()    let reuseId = "Cell"        //MARK: - DataSource Methods        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {        return dataManager.data.count    }        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {        let cell = tableView.dequeueReusableCell(withIdentifier: reuseId, for: indexPath)        cell.backgroundColor = .yellow        return cell    }        //MARK: - Delegate Methods    }

Now in your UICollectionViewCell subclass you can specify the tableView data source and delegate properties, like so:

class ContainerCollectionViewCell: UICollectionViewCell {    @IBOutlet weak var label: UILabel!    @IBOutlet weak var collectionView: UICollectionView!        let dataProvider = DataProvider()        let tableView: UITableView = {        let table = UITableView()        table.translatesAutoresizingMaskIntoConstraints = false        return table    }()        override func awakeFromNib() {       super.awakeFromNib()                addSubview(tableView)        tableView.fillSuperview()        tableView.register(UITableViewCell.self, forCellReuseIdentifier: dataProvider.reuseId)        tableView.delegate = dataProvider        tableView.dataSource = dataProvider    }}

Perhaps not perfect, but achieves better encapsulation than the above answers.