放置计数并在单元格中按下atcbtn时,我一直在努力更改cartBtn中的徽章编号
现在CountVC在cartBtn中向我显示的是按下atcbtn时的单元格计数,但是我想做的是获得按下Atcbtn时每个单元格的总计数
假设我的第一个单元格中的计数为4,第二个单元格中的计数为3。 cartBtn应该在徽章中显示7,而不仅仅是徽章中一个单元格的总数 如果有意义的话
struct Products {
var name: String
var count: Int
}
class CountViewController: UIViewController {
@IBOutlet weak var tableView: UITableView!
@IBOutlet weak var cartBtn: BadgeBarButtonItem!
var productSetup: [Products] = []
override func viewDidLoad() {
super.viewDidLoad()
tableView.dataSource = self
tableView.delegate = self
}
// changes the count on badge button but doesnt add up the count for every cell in the badege
//glitch is that it overloads the count passed into the cartVC when ATC is pressed multiple times in the cell
@objc func cartCount(_ sender: UIButton){
let currentCount = self.productSetup[sender.tag].count
self.productSetup[sender.tag].count = currentCount + 1
cartBtn.badgeNumber = currentCount
}
//increments the counter
@objc func plusItem(_ sender: UIButton) {
let currentCount = self.productSetup[sender.tag].count
if currentCount > 9 {
return
}
self.productSetup[sender.tag].count = currentCount + 1
if let currentCell = self.tableView.cellForRow(at: IndexPath(row: sender.tag, section: 0)) as? ProductListCell {
currentCell.lblQty.text = "\(self.productSetup[sender.tag].count)"
}
}
// decrements the counter
@objc func minusItem(_ sender: UIButton) {
let currentCount = self.productSetup[sender.tag].count
if !(currentCount - 1 >= 0) {
return
}
self.productSetup[sender.tag].count = currentCount - 1
if let currentCell = self.tableView.cellForRow(at: IndexPath(row: sender.tag, section: 0)) as? ProductListCell {
currentCell.lblQty.text = "\(self.productSetup[sender.tag].count)"
}
}
}
extension CountViewController: UITableViewDelegate, UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return productSetup.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CountCell") as? CountCell else { return UITableViewCell() }
// Allows increment and decrement to work in individual cells
cell.lblQty.text = "\(self.productSetup[indexPath.row].count)"
cell.plusBtn.tag = indexPath.row
cell.minusBtn.tag = indexPath.row
cell.plusBtn.addTarget(self, action: #selector(self.plusItem(_:)), for: .touchUpInside)
cell.minusBtn.addTarget(self, action: #selector(self.minusItem(_:)), for: .touchUpInside)
// used to change count in cart btn
cell.atcBtn.tag = indexPath.row
cell.atcBtn.addTarget(self, action: #selector(self.cartCount(_:)), for: .touchUpInside)
return cell
}
}
答案 0 :(得分:1)
您需要更改代码以遍历所有产品以得出总计:
@objc func cartCount(_ sender: UIButton){
var totalCount = 0
for product in productSetup {
totalCount += product.count
}
cartBtn.badgeNumber = totalCount
}
您也可以单线执行此操作,但是如果您不是Swift专家,会发生什么则不太明显。对于经验不足的程序员,您是否愿意使用更少的代码还是更易于理解的代码由您决定:
@objc func cartCount(_ sender: UIButton){
cartBtn.badgeNumber = productSetup.map({$0.count}).reduce(0,+)
}