MessagingViewController

Chat App - 2 - MessagingViewController.swift

class MessagingViewController: UIViewController {

    @IBOutlet private var tableView: UITableView!
    @IBOutlet private var messageTextField: UITextView!

    /// Assigned by the conversations view controller when the segue in triggered.
    var dataSource: MessagingDataSource?

    override func viewDidLoad() {
        super.viewDidLoad()

        tableView.dataSource = dataSource
        dataSource?.delegate = self
        title = dataSource?.title
    }

    @IBAction private func sendMessage(_ sender: UIButton) {
        guard let message = messageTextField.text else {
            return
        }
        dataSource?.send(message)
        messageTextField.text = nil
    }
}