How to increment and decrement value of label in tableview and make total price from label value in swift? - ios

Question

now cell value are dynamically and its look after calling api.
I want to make total of all tickets price at last. I refer this link How do I increment/decrement a label value with two buttons pressed in tableview Swift and make changes in my code but didn't work for me.
struct Product {
var price = 0
}
class TicketBookingVC: UIViewController , UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tblView: UITableView!
#IBOutlet weak var mainTblView: UIView!
var bookingDetails = NSDictionary()
var productArray = [Product]()
var product : Product!
private var counterValue = 1
var productIndex = 0
var counterLbl = UILabel()
#IBOutlet weak var bookBtn: UIButton!
#IBOutlet weak var eventImg: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
tblView.delegate = self
tblView.dataSource = self
for _ in 0...10{
productArray.append(Product(price: 1))
}
}
}
func numberOfSections(in tableView: UITableView) -> Int {
return 3
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0 {
return 1
}
else if section == 1{
return 4
}
else{
return 1
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellfirst", for: indexPath)
cell.selectionStyle = .none
return cell
}
else if indexPath.section == 1 {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellsecond", for: indexPath)
let mainViewCell = cell.contentView.viewWithTag(2000) as! UIView
let normalView = cell.contentView.viewWithTag(2001) as! UIView
let eventName = cell.contentView.viewWithTag(2003) as! UILabel
let eventPrice = cell.contentView.viewWithTag(2004) as! UILabel
counterLbl = cell.contentView.viewWithTag(2007) as! UILabel
let decrementBtn = cell.contentView.viewWithTag(2005) as! UIButton
let incrementBtn = cell.contentView.viewWithTag(2006) as! UIButton
decrementBtn.addTarget(self, action:#selector(self.decrementbuttonClicked), for: .touchUpInside)
incrementBtn.addTarget(self, action:#selector(self.incrementbuttonClicked), for: .touchUpInside)
product = productArray[indexPath.row]
counterLbl.text = "\(product.price)"
cell.selectionStyle = .none
return cell
}
else {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellthird", for: indexPath)
cell.selectionStyle = .none
return cell
}
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
if indexPath.section == 0{
return UITableView.automaticDimension
}
else{
return 80
//return UITableView.automaticDimension
}
}
#objc func decrementbuttonClicked() {
print("Button decrement")
if(counterValue != 1){
counterValue -= 1;
}
self.counterLbl.text = "\(counterValue)"
product.price = counterValue
}
#objc func incrementbuttonClicked() {
counterValue += 1;
self.counterLbl.text = "\(counterValue)"
product.price = counterValue
}
func addProductToCart(product: Product, atindex: Int) {
productArray[atindex] = product
calculateTotal()
}
func calculateTotal()
{
var totalValue = 0
for objProduct in productArray {
totalValue += objProduct.price
}
self.eventPrice.text = "Total \(totalValue)"
}
}
when I increment or decrement value of first cell it reflect in 4th cell. please help. I am new at swift.

Answer 1

This is due to cell reuse. You should set a model for each cell