Value missing after swipe gesture - ios

Question

I have a problem with a swipe gesture. I insert the NSUserdefaults function, but it doesn't work. Whenever I swipe, the value (you can see 90 at the pic) is always missing whenever I swipe it back.
The code that I insert NSUserdefaults looks like this:
This is the table controller, which shows the JSON data:
struct JSONActivity
{
static var jsondata = ""
}
class TableControllerActivities: UITableViewController {
var items = NSMutableArray()
var TableData:Array< String > = Array < String >()
var json:String = ""
#IBOutlet var myTableView: UITableView!
var arrayOfMenu: [Activity] = [Activity]()
#IBAction func setting(sender: AnyObject) {
self.performSegueWithIdentifier("SettingView", sender: self)
}
override func viewDidLoad() {
super.viewDidLoad()
self.setUpMenu()
self.myTableView.delegate = self
self.myTableView.dataSource = self
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayOfMenu.count //hitung banyak data pada array
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
//fungsi agar json dapat membaca tiap row pada storyboard
var shortDate: String {
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MM"
return dateFormatter.stringFromDate(NSDate())
}
let cell: CustomCellActivity = tableView.dequeueReusableCellWithIdentifier("cell") as! CustomCellActivity
let menu = arrayOfMenu[indexPath.row]
cell.setCell(menu.type, rightlabeltext: menu.unit, imagename: menu.image)
//memasukkan data ke json, misal textbox isi 3 maka akan diwrite ke json 3
var data = Activitiesdata(type: menu.type, amount: String(cell.value).toInt()!)
var json = JSONSerializer.toJson(data)
JSONActivity.jsondata = json
return cell
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func do_table_refresh()//mengapdet / merefresh data
{
dispatch_async(dispatch_get_main_queue(), {
self.tableView.reloadData()
return
})
}
func setUpMenu() //membaca json pada setiap arraynya
{
var json: JSON = JSON (data: NSData())
let frame:CGRect = CGRect(x: 110, y: 300, width: view.frame.width, height: 700)
self.tableView.frame = frame
DataManager.getactivityDataFromFileWithSuccess{ (data) -> Void in
json = JSON(data: data)
let results = json["results"]
for (index: String, subJson: JSON) in results {
}
for (var i = 0; i < json["Activity"].count; i++) {
if let type = json["Activity"][i]["type"].string {
//println("Tipe : \(type)")
if let icon: AnyObject = json["Activity"][i]["icon"].string {
self.items.addObject(icon)
if let unit_id = json["Activity"][i]["unit_id"].string {
//println("Logo : \(unit_id)")
dispatch_async(dispatch_get_main_queue(), {self.tableView!.reloadData()})
var menu = Activity(type: type, unit: unit_id, image: icon as! String)
self.arrayOfMenu.append(menu)
self.TableData.append(type + unit_id )
self.do_table_refresh()
}
}
}
}
}
}
}
And this is the cell controller, where the value is incremented:
struct Activitymenu
{
static var dataact:Array<String> = Array <String>()
static var quantity = ""
}
class CustomCellActivity: UITableViewCell, UITextFieldDelegate {
#IBOutlet weak var leftlabel: UILabel!
#IBOutlet weak var myImageView: UIImageView!
#IBOutlet weak var rightlabel: UILabel!
#IBOutlet weak var qtytext: UITextField!
#IBOutlet weak var decrease: UIImageView!
var value = 0
var checks:Bool = false
var dx = 0
override func awakeFromNib() {
super.awakeFromNib()
self.myImageView.userInteractionEnabled = true
self.decrease.userInteractionEnabled = true
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
qtytext.resignFirstResponder()
self.endEditing(true)
}
override func touchesEnded(touches: Set<NSObject>, withEvent event: UIEvent) {
let touch: UITouch? = touches.first as? UITouch
if(touch?.view == myImageView)
{
value += 30
qtytext.text = String(value)
println(qtytext.text)
}
if(touch?.view == decrease)
{
if(value >= 30)
{
value -= 30;
println(qtytext.text)
}
}
qtytext.resignFirstResponder()//respon pada editing textbox
self.endEditing(true)
qtytext.delegate = self
qtytext.text = String(value)
let myquantity = qtytext.text
NSUserDefaults.standardUserDefaults().setObject(myquantity, forKey: "SavedStringKey")
NSUserDefaults.standardUserDefaults().synchronize()
let stringKey = NSUserDefaults.standardUserDefaults()
qtytext.text = stringKey.stringForKey("SavedStringKey")
var data = Activitiesdata(type: leftlabel.text!, amount: qtytext.text.toInt()!)
var temp:Activitiesdata
temp = data
var idx = 0
if(temp.amount-30 > 0) {
temp.amount -= 30
}
data = Activitiesdata(type: leftlabel.text!, amount: qtytext.text.toInt()!)
var json = JSONSerializer.toJson(data)
var tempJson = JSONSerializer.toJson(temp)
for(var i = 0; i < Activitymenu.dataact.count; i++){
if(Activitymenu.dataact[i] == tempJson){
self.checks = true
self.dx = i
}
}
if(!self.checks) {
Activitymenu.dataact.append(json)
}
else{
Activitymenu.dataact[self.dx] = json
}
}
func setCell(leftlabeltext: String, rightlabeltext: String, imagename: String)
{
self.leftlabel.text = leftlabeltext
self.rightlabel.text = rightlabeltext
self.myImageView.image = UIImage(named: imagename)
}
}
I think, the value is still there, but it not shown, why is that?
myquantity, value and qty text have the same output of 90..3.