【发布时间】：2021-10-07 17:48:36
【问题描述】：
我正在使用 swift5 构建 ios 应用程序。 所以在我看来，我创建 TableView 来显示一些信息。当用户打开视图时，我调用 Web 服务来检索要在我的 TableView 中显示的数据。但我也希望用户可以像在普通应用程序中一样刷新表格的内容。
这是我的表格视图的代码：
extension HomeVC : UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.arrListAll.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! homcell
/*var arrList:[Result] = []
if buttonTag == 0{
arrList = self.arrListPending
}else if buttonTag == 1{
arrList = self.arrListProcess
}else if buttonTag == 2{
arrList = self.arrListCompleted
}else if buttonTag == 3{
arrList = self.arrListRejected
}*/
let order = self.arrListAll[indexPath.row]
let arrayArticoli = order.itemData
var strOrder:String = ""
for i in 0..<arrayArticoli.count {
var prodotto = arrayArticoli[i]
strOrder += "\(prodotto.itemQuantity) x \(prodotto.itemName)\n"
//devo verificare che ingredient name abbia qualcosa
if(prodotto.itemName != nil &&
prodotto.ingredientName != "" ){
var aggiunte = prodotto.ingredientName
var arr = aggiunte.components(separatedBy: ", ")
if(arr.count>0){
var cont = 0
for y in 0..<arr.count - 1 {
strOrder += (arr[y]) + ", "
if(cont == 2){
cont = 0
strOrder += "\n"
}
cont = cont + 1
}
if(i < (arrayArticoli.count - 1)){
strOrder += "\n"
}
}
}
}
var timeBooking:String? = order.timeBooking
if ((timeBooking?.isEmpty) != nil){
cell.lblTitlePrenotazione.text = "è una prenotazione, controlla l'orario \ndi prenotazione in fondo."
cell.lblTitlePrenotazione.backgroundColor = UIColor.yellow
cell.lbl_OrarioPrenotazione.text = "Prepara per le ore " + (timeBooking)!
cell.lbl_OrarioPrenotazione.backgroundColor = UIColor.yellow
}else{
cell.lblTitlePrenotazione.text = ""
cell.lbl_OrarioPrenotazione.text = ""
}
cell.lblTitleOrderDetail.text = "DETTAGLIO ORDINE:"
cell.lblId.text = "ID : \(order.id)"
cell.lbl_Name.text = order.userName
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
let date = formatter.date(from: order.dateTime)
formatter.dateFormat = "dd/MM/yyyy HH:mm"
cell.lbl_Date.text = "DATA : \(formatter.string(from: date!))"
cell.lbl_Number.text = "Numero : \(order.mobile)"
cell.lbl_OrderDetail.text = strOrder
//cell.lbl_OrderDetail.sizeToFit();
//cell.lbl_OrderDetail.adjustsFontSizeToFitWidth = false
//cell.lbl_OrderDetail.lineBreakMode = .byTruncatingTail
cell.lbl_OrderDetail.lineBreakMode = NSLineBreakMode.byWordWrapping
cell.lbl_DeliveryCharge.text = "Consegna \(kCurrency):\(order.deliveryCoast)"
let ordine = Double(order.totalOrder ?? "0.0")! + Double(order.deliveryCoast ?? "0.0")!
cell.lbl_Total.text = "Totale \(kCurrency):\(ordine)"
cell.lbl_Paynet.text = "Ordine\(kCurrency):\(order.totalOrder)"
if(order.paymentType == "Cash"){
cell.lbl_PaymentType.text = "Pagamento in contanti :"
}else if(order.paymentType == "Card"){
cell.lbl_PaymentType.text = "Pagamento con carta :"
}
cell.btn_messa.tag = indexPath.row
cell.btn_messa.addTarget(self, action: #selector(goSendMessage), for: .touchUpInside)
cell.btnccall.tag = indexPath.row
cell.btnccall.addTarget(self, action: #selector(goReject), for: .touchUpInside)
cell.btn_Wait.tag = indexPath.row
cell.btn_Wait.addTarget(self, action: #selector(goAcceptMove), for: .touchUpInside)
if(buttonTag == 0){
if(order.status == self.st_pending){
cell.btn_Wait.setTitle("Accetta ordine",for: .normal)
cell.btn_Wait.isEnabled = true
}else if(order.status == self.st_driver_rejected){
cell.btn_Wait.setTitle("Ordine rifiutato dal Runner",for: .normal)
cell.btn_Wait.isEnabled = false
}
cell.btn_Wait.backgroundColor = UIColor.systemOrange
}else if(buttonTag == 1){
if(order.status == self.st_driver_accept){
cell.btn_Wait.setTitle("Ordine accettato dal Runner",for: .normal)
cell.btn_Wait.isEnabled = true
}else if(order.status == self.st_process){
cell.btn_Wait.setTitle("in Attesa che il Moover accetti",for: .normal)
cell.btn_Wait.isEnabled = false
}else if(order.status == self.st_way){
cell.btn_Wait.setTitle("in Consegna",for: .normal)
cell.btn_Wait.isEnabled = false
}
cell.btn_Wait.backgroundColor = UIColor.systemOrange
}else if(buttonTag == 2){
cell.btn_Wait.setTitle("Ordine Consegnato",for: .normal)
cell.btn_Wait.backgroundColor = UIColor.systemOrange
cell.btn_Wait.isEnabled = false
}else if(buttonTag == 3){
cell.btn_Wait.setTitle("Ordine Cancellato",for: .normal)
cell.btn_Wait.backgroundColor = UIColor.red
cell.btn_Wait.isEnabled = false
}
return cell
}
func goHistoryOrder(indexRow indexRow: Int){
let order = self.arrListAll[indexRow]
if(order.status == self.st_driver_accept){
let objVC = kStoryboardMain.instantiateViewController(withIdentifier: "HistoryDetailVC") as! HistoryDetailVC
objVC.order = order
self.navigationController?.pushViewController(objVC, animated: true)
}
}
@objc func goAcceptMove(butt:UIButton) {
let order = self.arrListAll[butt.tag]
if(order.status == self.st_pending){
cambiaStatoOrdine(strStatu: "Process", strId: order.id)
}else if(order.status == self.st_driver_accept){
goHistoryOrder(indexRow: butt.tag)
}
}
@objc func goSendMessage(butt:UIButton) {
let order = self.arrListAll[butt.tag]
let objVC = kStoryboardMain.instantiateViewController(withIdentifier: "UserChat") as! UserChat
objVC.receiverId = order.userID
objVC.userName = order.userName
self.navigationController?.pushViewController(objVC, animated: true)
}
@objc func goReject(butt:UIButton) {
}
}
现在当用户打开视图时，它可以显示这个视图：
现在如果用户从下到上滚动表格，表格显示使用其他顺序，但是当用户从上到下滚动表格并且表格到达第一个元素时，我想调用一个方法来获取所有新数据并刷新表格内容。
【问题讨论】：
标签： swift uitableview