Printing out the data in the console works just fine. In viewdidload method the array count is also fine. But if i use any of the code outside viewdidload its not working. Im trying to populate a table with two labels in each cell (airline and price) but none of the data is displaying and when i try out in the console arrayOfFlights.price.count (for example) it prints out 0 as if its empty.
在控制台中打印出数据就可以了。在viewdidload方法中,数组计数也很好。但是,如果我使用viewdidload之外的任何代码,它无法正常工作。我试图填充每个单元格中有两个标签的表格(航空公司和价格),但没有数据显示,当我在控制台arrayOfFlights.price.count(例如)中试用时,它打印出0,好像它是空的。
Data:
import Foundation
class FlightDataModel {
var airline: String?
var price: String?
init(airline: String?, price: String?) {
self.airline = airline
self.price = price
}
}
controller.swift
import Foundation
import UIKit
class FlightsController: UITableViewController, UITableViewDataSource {
var arrayOfFlights : [FlightDataModel] = [FlightDataModel]()
var startpoint:String!
var endpoint:String!
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.arrayOfFlights.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = self.tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as myCustomTableViewCell
cell.airlineLabel.text = arrayOfFlights[indexPath.row].airline
cell.priceLabel.text = arrayOfFlights[indexPath.row].price
return cell
}
override func viewDidLoad() {
super.viewDidLoad()
// json request to api
let qpxRequest = Router.QPXRequest()
request(qpxRequest).responseJSON { (request, response, json, error) -> Void in
if json != nil {
//insert airline data into arrayOfFlights
if let myJSON = json as? [String:AnyObject] {
if let trips = myJSON["trips"] as? [String:AnyObject] {
if let data = trips["data"] as? [String:AnyObject] {
if let carriers = data["carrier"] as? [[String:String]] {
for (index, carrierName) in enumerate(carriers) {
var myFlight = FlightDataModel(airline: carrierName["name"] as String!, price:nil)
self.arrayOfFlights.append(myFlight)
}
}
}
if let tripOptions = trips["tripOption"] as? [[String:AnyObject]] {
for (index, tripOption) in enumerate(tripOptions) {
self.arrayOfFlights[index].price = tripOption["saleTotal"] as String!
}
}
}
}
}
} // end api request
} //end viewdidload
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
}
1 个解决方案
#1
Make sure your class is set as dataSource of your tableView
确保您的类被设置为tableView的dataSource
And call the method tableView.reloadData() when you are done with the data parsing.
完成数据解析后调用方法tableView.reloadData()。
#1
Make sure your class is set as dataSource of your tableView
确保您的类被设置为tableView的dataSource
And call the method tableView.reloadData() when you are done with the data parsing.
完成数据解析后调用方法tableView.reloadData()。