Hi everybody

How to insert text of textView in table view?

I would like to learn how to pass data from DetailViewController to ViewController ?

ViewController:

class ViewController: UITableViewController {

    var notes = [noteText]()

    // navigation items
    var editButton: UIBarButtonItem!
    var cancelButton: UIBarButtonItem!

    // toolbar items
    var spacerButton: UIBarButtonItem!
    var notesCountButton: UIBarButtonItem!
    var newNoteButton: UIBarButtonItem!

    override func viewDidLoad() {
        super.viewDidLoad()

        tableView.backgroundView = UIImageView(image: UIImage(named: "1x"))

        title = "Notes"
        navigationController?.navigationBar.prefersLargeTitles = true

        // navigation items
        editButton = UIBarButtonItem(barButtonSystemItem: .edit, target: self, action: #selector(editTapped))
        editButton.tintColor = .orange
        navigationItem.rightBarButtonItem = editButton

        // toolbar items
        newNoteButton = UIBarButtonItem(barButtonSystemItem: .compose, target: self, action: #selector(newNoteTapped))
        newNoteButton.tintColor = .orange
        spacerButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
        notesCountButton = UIBarButtonItem(title: "\(notes.count) Notes", style: .plain, target: nil, action: nil)
        notesCountButton.setTitleTextAttributes([
            NSAttributedString.Key.font : UIFont.systemFont(ofSize: 11),
            NSAttributedString.Key.foregroundColor : UIColor.darkText], for: .normal)
            toolbarItems = [spacerButton, notesCountButton, spacerButton, newNoteButton]
            navigationController?.isToolbarHidden = false
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        notes.count
    }
    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)

        let note = notes[indexPath.row]
        cell.textLabel?.text = note.name

        return cell
    }

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        if let vc = storyboard?.instantiateViewController(withIdentifier: "Details") as? DetailViewController {

            vc.noteDetail = notes[indexPath.row]   // Cannot assign value of type 'noteText' to type '[noteText]

         navigationController?.pushViewController(vc, animated: true)
        }
    }

    @objc func editTapped() {

    }

    @objc func newNoteTapped() {
        let storyboard = UIStoryboard(name: "Main", bundle: nil);
        let vc = storyboard.instantiateViewController(withIdentifier: "Details") as! DetailViewController
        self.navigationController?.pushViewController(vc, animated: true)
    }

}

DetailViewController:

class DetailViewController: UIViewController, UITextViewDelegate {
    @IBOutlet var textView: UITextView!

    var noteDetail: [noteText]!

    override func viewDidLoad() {
        super.viewDidLoad()

        let share = UIBarButtonItem(barButtonSystemItem: .action, target: self, action: #selector(shareTapped))
        let done = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(doneTapped))
        // add multiple UIBarButtonItem to a navigation bar.
        navigationItem.rightBarButtonItems = [done, share]

        // for show keyboard and automatic scroll down during type.
        let notificationCenter = NotificationCenter.default
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillHideNotification, object: nil)
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillChangeFrameNotification, object: nil)

        textView.textAlignment = .natural

    }

    @objc func shareTapped() {

        let shareText = textView.text ?? "No text Found"

        let vc = UIActivityViewController(activityItems: [shareText], applicationActivities: [])
        present(vc, animated: true)
    }

    @objc func doneTapped() {

    }
    // keyboard adjustment.
    @objc func adjustForKeyboard(notification: Notification) {
        guard let keyboardValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }

        let keyboardScreenEndFrame = keyboardValue.cgRectValue
        let keyboardViewEndFrame = view.convert(keyboardScreenEndFrame, from: view.window)

        if notification.name == UIResponder.keyboardWillHideNotification {
            textView.contentInset = .zero

        } else {
            textView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardViewEndFrame.height, right: 0)
        }

        textView.scrollIndicatorInsets = textView.contentInset

        let selectedRange = textView.selectedRange
        textView.scrollRangeToVisible(selectedRange)
    }
}

noteText:

class noteText: Codable {
    var name: String

    init(name: String) {
        self.name = name
    }
}

Hi @ygeras, how to use that ?

In your detailview you will probably have textField for inserting text. Once you typed in your text, you will want to save it. So by using singleton DataManager.save(:) you can do it.

And when your view controller (main view) will appear you can retrieve your data from saved file again using singleton DataManager.load()

override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

        notes = DataManager.load()
        tableView.reloadData()
    }

Thank you @ygeras