General UITableViewDataSource

Very simple code (swift) UITableViewDataSource using General for many UITableView you have

Before using General

Usually every time you add a UITableView in your controller, you must also add UITableViewDataSource to the controller

extension viewController: UITableViewDataSource {
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return items.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let item = items[indexPath.row]
        let cell = tableView.dequeueReusableCell(withIdentifier: "identifier", for: indexPath) as! BaseCell

        cell.textLabel?.text = item.title
        return cell
    }
}

class BaseCell: UITableViewCell {}

in programming we know 1 quote "never repeat yourself" therefore swift provides General features for which we can use it to never again add UITableviewDataSource on each controller

what we do is separate the datasource from the tableview controller by creating a special class to manage dataSource so that we can reuse that class for other controllers

After using General

class ViewController: UIViewController {

    @IBOutlet weak var tableView: UITableView!

    let items = ["Item 1", "Item 2", "Item 3", "Item 4", "Item 5", "Item 6"]
    var dataSource: TableViewDataSource<BasicCell, String>!

    override func viewDidLoad() {
        super.viewDidLoad()
        dataSource = .make(items: items, tableView: tableView)
    }
}

class BasicCell: BaseTableViewCell<String> {
    override var item: String! {
        didSet {
            self.textLabel?.text = item
        }
    }
}

You can get the class that manages the datasource in TableViewUtils.swift https://github.com/havelio/General_UITableViewDataSource/blob/master/TableViewUtils.swift

How to apply for UICollectionView

https://github.com/havelio/General_collectionViewDataSource

Good luck!