当我选择UIButoon（selectMaghsad或selectMabda）时，飞机搜索到选择城市没有困难和问题我在selecteCity中选择一个单元格（tableviewController）返回AircraftSearch并在标签中显示数据（labelcity）问题是如果没有我想再次转到tableViewController（selecteCity）
并提醒：
A
Error Domain=NSURLErrorDomain Code=-1002 "unsupported URL" UserInfo={NSLocalizedDescription=unsupported URL, NSUnderlyingError=0x7f867b5a4920 {Error Domain=kCFErrorDomainCFNetwork Code=-1002 "(null)"}}
为什么？ 你认为问题在哪里？ 你能救我吗？
AircraftSearch
class AircraftSearch: UIViewController ,SendbackDelegate{
@IBOutlet weak var Mabda: UIButton!
@IBOutlet weak var maghsad: UIButton!
@IBOutlet weak var labelcity: UILabel!
@IBOutlet weak var cityTectfield: UITextField!
var Airurl = NSURL()
var ScrOrDstArray = [MabdaAndMaghsad]()
var origin = [String]() // save mabda
var purpose = [String]() // save maghsad
var sendDataToTableview = [String]()
var tit = String()
override func viewDidLoad() {
super.viewDidLoad()
labelcity.text = tit
GetPassCity()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func selectMabda(sender: AnyObject) {
sendDataToTableview = origin
performSegueWithIdentifier("SelectedCellSegue", sender: sender)
}
@IBAction func selectMaghsad(sender: AnyObject) {
sendDataToTableview = purpose
print(sendDataToTableview)
performSegueWithIdentifier("SelectedCellSegue", sender: sender)
}
func originAndpurpose() {
let dataCity = ScrOrDstArray
for i in dataCity{
if i.SrcOrDst == true{
origin.append(i.Name)
}else{
purpose.append(i.Name)
}
}
}
func GetPassCity(){
let actInd : UIActivityIndicatorView = UIActivityIndicatorView(frame: CGRectMake(0,0, 50, 50)) as UIActivityIndicatorView
actInd.center = self.view.center
actInd.hidesWhenStopped = true
actInd.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
view.addSubview(actInd)
actInd.startAnimating()
NSURLSession.sharedSession().dataTaskWithURL(Airurl){ ( data ,response ,error) in
if error != nil{
print("A")
print(error!)
}else{
do{
//readin data from Server
let posts = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as! [[String:AnyObject]]
//save data
for post in posts{
var postCity:MabdaAndMaghsad?
if let Id = post["Id"] as? Int ,
let nameCity = post["Name"] as? String ,
let SrcOrDst = post["SrcOrDst"] as? Bool
{
postCity = MabdaAndMaghsad(ID: Id, Name: nameCity, SrcOrDst: SrcOrDst)
}
self.ScrOrDstArray.append(postCity!)
}
//===============
dispatch_async(dispatch_get_main_queue()){
actInd.stopAnimating()
self.originAndpurpose()
print(self.origin)
print("=======")
// print(self.purpose)
}
}catch let error as NSError{
print("B")
print(error)
}
}
}.resume()
}
func sendNameToPreviousVC(SelectCity: String) {
tit = SelectCity
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "SelectedCellSegue" {
if let VC = segue.destinationViewController as? SelectedCity {
VC.toTake = sendDataToTableview
VC.delegate = self
}
}
}
}
SelectedCity视图
import UIKit
protocol SendbackDelegate:class {
func sendNameToPreviousVC(City:String)
}
class SelectedCity: UITableViewController {
var toTake = [String]()
var selecteCity = String()
weak var delegate: SendbackDelegate? = nil
override func viewDidLoad() {
super.viewDidLoad()
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
navigationController?.setNavigationBarHidden(false, animated: true)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return toTake.count ?? 0
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("stcell", forIndexPath: indexPath) as? mAndMCell
let nameCity = toTake[indexPath.row]
print(nameCity)
cell!.nameCityLabel.text = nameCity
return cell!
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath){
let indexPath = tableView.indexPathForSelectedRow!
let currentCell = tableView.cellForRowAtIndexPath(indexPath) as! mAndMCell!
selecteCity = currentCell.nameCityLabel!.text as String!
sendBackIdCity(selecteCity)
navigationController?.popViewControllerAnimated(true)
}
func sendBackIdCity(name: String){
self.delegate?.sendNameToPreviousVC(name)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "backCitySegue"{
var VCOne = segue.destinationViewController as? AircraftSearch
self.delegate = VCOne
}
}
}
