现在单元格值是动态的，它会在调用 api 后查看。
我想最后把所有门票的价格加起来。我引用这个链接 How do I increment/decrement a label value with two buttons pressed in tableview Swift并更改我的代码，但对我不起作用。
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)"
}
}
当我增加或减少第一个单元格的值时，它反射(reflect)在第四个单元格中。请帮忙。我是 swift 的新手。
最佳答案
这是由于单元重用。您应该为每个单元格设置一个模型
关于ios - 如何在 tableview 中增加和减少标签的值，并在 swift 中根据标签值计算总价？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56930158/