我在将选定单元格中的数据从（service2viewcontroller）移动到（confirmorderviewcontroller）时遇到问题。我正在尝试移动单元格数据（stepper.value高于0的单元格（变量数量> 0.0（在Service2ViewController中））），我被告知将数组传递给下一个视图控制器，为步进器值执行此操作大于0我还需要为数量变量大于0的行发送indexpath.row吗？如果有人能提供帮助，我不知道如何做到这一点我会非常感激。当我使用步进器保持为0时标签没有更新，我可以将数量变量放在数组内吗？视图控制器中的总价格标签继续运行，数据被发送到（confirmorderviewcontroller），没有任何问题。
首先是TableView（输入并转发数据）
class Service2ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
@IBOutlet weak var service2Total: UILabel!
@IBOutlet weak var service2TableView: UITableView!
// service data
var Wash: [Service2] = []
//stepper and price calculation
var quantity = Double()
var totalPrice : Double = 0.0
var priceList = [Int : Double]()
var totalProductPrice = [Int : Double]()
var label : Int!
override func viewDidLoad() {
super.viewDidLoad()
Wash = Options2()
if Int(quantity) > 0{
service2TableView.reloadData()
}
priceList[0] = 3.51//price list
priceList[1] = 5.51
service2Total.text = "$0.00"
}
// create data array
func Options2() -> [Service2]{
var washOptions: [Service2] = []
let option1 = Service2(titled: "Test", pricing: "$3.51", image: #imageLiteral(resourceName: "Wash&Fold"), description:"Testing the description box", quantity: Int(quantity))
let option2 = Service2(titled: "Test", pricing: "$5.51", image: #imageLiteral(resourceName: "Wash&Fold"), description: "Testing the description box", quantity: Int(quantity))
washOptions.append(option1)
washOptions.append(option2)
return washOptions
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return Wash.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let Wash1 = Wash[indexPath.row]
let cell = tableView.dequeueReusableCell(withIdentifier: "Service2Cell", for: indexPath) as! Service2TableViewCell
cell.setService(Wash: Wash1)
cell.selectionStyle = .none
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 133
}
@IBAction func stepperAcn(_ sender: UIStepper) {
//change label value with stepper
let cellPosition = sender.convert(CGPoint.zero, to: service2TableView)
let indPath : IndexPath = service2TableView.indexPathForRow(at: cellPosition)!
quantity = sender.value
let getCurrentProductPrice : Double = priceList[indPath.row]! * sender.value
totalPrice = gettingPriceLabel(indPath: indPath, getCurrentProductPrice: getCurrentProductPrice)
if totalPrice == 0{
service2Total.text = ("$0.00")
}
else{
service2Total.text = ("$")+String(totalPrice)
}
print("total price",totalPrice)
print("quantity double",quantity)
service2TableView.reloadData()
}
func gettingPriceLabel(indPath: IndexPath, getCurrentProductPrice : Double) -> Double
{
totalProductPrice[indPath.row] = getCurrentProductPrice
var totalCost : Double = 0.0
let valuesArr = Array(totalProductPrice.values)
for i in 0..<valuesArr.count
{
totalCost = totalCost + valuesArr[i]
}
return totalCost
}
// add function to collect (didSelectRowAt) and send selected data to cart and prepare for segue
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
}
// change sender to
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let DestViewController: ConfirmorderViewController = segue.destination as! ConfirmorderViewController
if totalPrice > 0.00{
DestViewController.amount = totalPrice
}
}
}
服务初始化程序
class Service2
{
var service2Title: String
var service2Image: UIImage
var Service2Pricing: String
var service2Description: String
var service2Quantity: Int
init(titled: String, pricing: String, image: UIImage, description: String, quantity: Int){
self.service2Title = titled
self.Service2Pricing = pricing
self.service2Image = image
self.service2Description = description
self.service2Quantity = quantity
}
}
服务2 TableViewCell
class Service2TableViewCell: UITableViewCell {
@IBOutlet weak var service2Title: UILabel!
@IBOutlet weak var service2Stepper: UIStepper!
@IBOutlet weak var service2StepperLbl: UILabel!
@IBOutlet weak var service2Pricing: UILabel!
@IBOutlet weak var service2Image: UIImageView!
@IBOutlet weak var service2Description: UILabel!
func setService(Wash: Service2){
service2Image.image = Wash.service2Image
service2Pricing.text = Wash.Service2Pricing.description
service2Title.text = Wash.service2Title
service2Description.text = Wash.service2Description
service2StepperLbl.text = Wash.service2Quantity.description
}
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
}
}
第二个TableView（接收数据）
class ConfirmorderViewController: UIViewController{
@IBOutlet weak var Total: UILabel!
@IBOutlet weak var confirmOrderTableView: UITableView!
var titled = [String]()
var amount: String = ""
//var quantity = String()
var image1 = [UIImage]()
var Price = [Double]()
override func viewDidLoad() {
super.viewDidLoad()
Total.text = amount
confirmOrderTableView.reloadData()
}
}
extension ConfirmorderViewController: UITableViewDataSource, UITableViewDelegate{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return titled.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "ConfirmOrderTableViewCell") as! ConfirmOrderTableViewCell
cell.coTitle?.text = titled[indexPath.row]
cell.coImg?.image = image1[indexPath.row]
//cell.coQuantity.text = quantity
cell.coPrice?.text = Price.description
return cell
}
}
答案 0 :(得分：1)
我在这里试过了。我得到的row numbers列表超过0个订单。我将它存储在whichRowToBeAdd中。如果用户decreased到Zero，则removed中的各行将array。
在Singleton Class的帮助下，我们可以存储我们需要在NextViewController
var whichRowToBeAdd = [Int]() // GLOBAL
@IBAction func stepperAcn(_ sender: UIStepper) {
//change label value with stepper
let cellPosition = sender.convert(CGPoint.zero, to: service2TableView)
let indPath : IndexPath = service2TableView.indexPathForRow(at: cellPosition)!
if Int(sender.value) == 0
{
if whichRowToBeAdd.contains(indPath.row)
{
whichRowToBeAdd.remove(at: whichRowToBeAdd.index(of: indPath.row)!)
}
else
{
}
}
else
{
if whichRowToBeAdd.contains(indPath.row)
{
}
else
{
whichRowToBeAdd.append(indPath.row)
}
}
//....
//..... Your Code in your answer
}
// After stepper Action, final click of Button, which moves to Next ViewController
@IBAction func goToConfirmOrder(_ sender: UIBarButtonItem) {
print("\n\n Val_ ", whichRowToBeAdd)
singleTon.sharedInstance.orderDict.removeAll()
for i in 0..<whichRowToBeAdd.count
{
let indPath = IndexPath(row: whichRowToBeAdd[i], section: 0)
let newCell = tblVw.cellForRow(at: indPath) as! Service2TableViewCell
print("qweqwe ",newCell.testLbl.text)
let name : String = newCell.service2Title.text!
let image : UIImage = newCell.service2Image.image
let quantity : Int = Int(newCell.service2StepperLbl.text!)!
getOrderOneByOne(productName: name, productImage: image, productQuantity: quantity)
if i == (whichRowToBeAdd.count - 1)
{
self.performSegue(withIdentifier: "confirmOrderVC", sender: nil)
}
}
}
func getOrderOneByOne(productName: String, productImage : UIImage, productQuantity: Int)
{
let createDict = ["productName" : productName, "productImage" : productImage, "productQuantity" : productQuantity] as [String : Any]
singleTon.sharedInstance.orderDict.append(createDict)
}
Singleton Class
class singleTon: NSObject {
static let sharedInstance = singleTon() // Singleton Instance
var orderDict = [[String : Any]]() // Dictionary Declaration
}
下一个ViewController
class ConfirmOrderViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
print("\n\norderDict.coun ", singleTon.sharedInstance.orderDict)
}
}
使用此功能，您可以在此ConfirmOrderViewController中的TableView中显示数据。