Template to create a simple UITableView in a UIViewController

template-UItableView-Swift.md

1. Add UItableView inside ViewController in Storyboard.
2. Create IBOutlet called tableView
3. Set Delegate and DataSource in ViewController in Storyboard

class ViewControllerCustom: UIViewController, UITableViewDelegate, UITableViewDataSource {
    
     var items: [String] = ["Swift1", "Swift2", "Swift3"]

    @IBOutlet weak var tableView: UITableView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "cell")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    
    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return self.items.count;
    }
    
    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell:UITableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell")! as UITableViewCell
        
        cell.textLabel?.text = self.items[indexPath.row]
        
        return cell
    }
    
    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        print("You selected cell #\(indexPath.row)!")
    }


}

Thanx!

2021 Swift 5 version:

protocol Example {
    func run()
    init()
}

class ViewController: UIViewController {
    @IBOutlet var tableView: UITableView!

    let examples: [Example.Type] = [
        Example1.self,
        Example2.self,
    ]

    override func viewDidLoad() {
        super.viewDidLoad()
        tableView.reloadData()
    }
}

extension ViewController: UITableViewDataSource {
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell:UITableViewCell = tableView.dequeueReusableCell(withIdentifier: "ExampleCell")! as UITableViewCell
        cell.textLabel?.text = "\(examples[indexPath.row])"
        return cell
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return examples.count
    }
}

extension ViewController: UITableViewDelegate {
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        examples[indexPath.row].init().run()
        tableView.deselectRow(at: indexPath, animated: true)
    }
}

is there forgetter some code in viewDidLoad() ?

tableView.delegate = self
tableView.dataSource = self

is there forgetter some code in viewDidLoad() ?

tableView.delegate = self
tableView.dataSource = self

This gist was written 7 years ago, people were using interface builder back then and IBOutlets were dragged between components in IB.

Correct, this gist was aimed to be used with a StoryBoard or IBOutlets in general. Also the third step specify to set it on the Storyboard. Uff oldddd times xD

3. Set Delegate and DataSource in ViewController in Storyboard