How to execute data inside TableViewCell as a button? - ios

Question

I am creating an app where in the menus are listed inside TableViewCell. The menus are already inside the cell but unfortunately, when I clicked one of the menus, It is not executing the action that the menu should do. For example, i tapped the logout label it does not executing showlogoutDialog. I already used breakpoints but it seems the data inside the table are just plain text. Image below is the sample output of the table. Hope you can give some solution regarding this issue. Thank you.
DoctorMenuTableCell.swift
class DoctorMenuTableCellTableViewCell: UITableViewCell {
#IBOutlet weak var titleLabel: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
MoreOptionViewController.swift
private let menuIdentifier = "MenuCell"
class MoreOptionViewController: UIViewController {
#IBOutlet weak var doctorMenuTableView: UITableView!
}
override func viewDidLoad() {
super.viewDidLoad()
self.doctorMenuTableView.dataSource = self
self.doctorMenuTableView.delegate = self
}
//MARK: Function
func showLogoutDialog() {
//create alert
let alert = UIAlertController(title: "Confirmation", message: "Are you sure you want to logout?", preferredStyle: .alert)
//add the actions (button)
alert.addAction(UIAlertAction(title: "No", style: .default, handler: nil))
alert.addAction(UIAlertAction(title: "Yes", style: .default, handler: { (alert) in
self.logout()
}))
self.present(alert, animated: true, completion: nil)
}
func logout() {
NotificationCenter.default.post(name: Notification.Name(deleteUserDataNotificationName), object: nil)
}
}
extension MoreOptionViewController: UITableViewDataSource, UITableViewDelegate {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
switch section {
case 0:
return Menu.More.items.count
default: return 0
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let row = indexPath.row
switch indexPath.section {
case 0:
let cell = tableView.dequeueReusableCell(withIdentifier: menuIdentifier, for: indexPath) as! DoctorMenuTableCell
cell.titleLabel.text = Menu.More.items[row].value
if row == 1{
cell.titleLabel.textColor = UIColor.red
cell.accessoryType = .none
}
return cell
default:
return UITableViewCell()
}
}
func tableView(_tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
switch indexPath.section {
case 0: break
case 1:
switch indexPath.row {
case 0:
let alertController = UIAlertController(title: "Info", message: "No available data", preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "OK", style: .default))
self.present(alertController, animated: true, completion: nil)
case 1: showLogoutDialog()
default: break
}
default: break
}
}

Answer 1

Check your Did Select Method, your cells are under Section 0 and Did Select work for section 1.
Also check isUserInteractionEnabled for both TableView as well as Cell and add breakpoint on didSelectRowAt and check which switch case is working.
Code:
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
switch section {
case 0:
return Menu.More.items.count
default: return 0
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
switch indexPath.section {
case 0:
let cell = tableView.dequeueReusableCell(withIdentifier: menuIdentifier, for: indexPath) as! DoctorMenuTableCell
cell.titleLabel.text = Menu.More.items[row].value
if indexPath.row == 1{
cell.titleLabel.textColor = UIColor.red
cell.accessoryType = .none
}
return cell
default:
return UITableViewCell()
}
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
switch indexPath.section {
case 1: break
case 0:
switch indexPath.row {
case 0:
let alertController = UIAlertController(title: "Info", message: "No available data", preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "OK", style: .default))
self.present(alertController, animated: true, completion: nil)
break
case 1: showLogoutDialog()
break
default: break
}
break
default: break
}
}

Answer 2

Look how many sections you have. You have just one, but inside didSelectRowAt you're showing alerts just if section index is 1 which in you case index never is.
You just need to check if row is 0 or 1
func tableView(_tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
switch indexPath.row {
case 0:
let alertController = UIAlertController(title: "Info", message: "No available data", preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "OK", style: .default))
present(alertController, animated: true)
case 1:
showLogoutDialog()
default:
return
}
}
So, if you have only one section, you can also update data source methods. Also you should handle cases that cell isn't in IndexPath with row index 1 since cells are dequeued
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return Menu.More.items.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: menuIdentifier, for: indexPath) as! DoctorMenuTableCell
let row = indexPath.row
cell.titleLabel.text = Menu.More.items[row].value
cell.titleLabel.textColor = .black
cell.accessoryType = .detailButton
if row == 1
cell.titleLabel.textColor = .red
cell.accessoryType = .none
}
return cell
}

Answer 3

First Create Extension if UIViewController as Below,
Create a swift File Named Extension.swift or whatever you want,
extension UIViewController
{
func showLogoutDialog() {
//create alert
let alert = UIAlertController(title: "Confirmation", message: "Are you sure you want to logout?", preferredStyle: .alert)
//add the actions (button)
alert.addAction(UIAlertAction(title: "No", style: .default, handler: nil))
alert.addAction(UIAlertAction(title: "Yes", style: .default, handler: { (alert) in
self.logout()
}))
self.present(alert, animated: true, completion: nil)
}
func logout() {
print("helllllo")
NotificationCenter.default.post(name: Notification.Name(deleteUserDataNotificationName), object: nil)
}
}
Now call showLogoutDialog() on cellForRowAt,
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
switch indexPath.section {
case 1: break
case 0:
switch indexPath.row {
case 0:
let alertController = UIAlertController(title: "Info", message: "your data", preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "OK", style: .default))
self.present(alertController, animated: true, completion: nil)
break
case 1: showLogoutDialog()
break
default: break
}
break
default: break
}