can't use returend result Json in any class - json

Question

i'm new to swift 2 langue and I'm try to use Json file inside my project so i go to use SwiftyJson library framework,but i got small problem that is i can't use the returned result from the son file in class of my project
this is my code
import UIKit
class NewsViewController: UIViewController,UICollectionViewDataSource,UICollectionViewDelegate{
#IBOutlet weak var championlist: UICollectionView!
#IBOutlet weak var menuButton: UIBarButtonItem!
private var imagesArray = ["About" , "About" , "About" , "About" , "Logo" , "Search" , "About"]
override func viewDidLoad() {
super.viewDidLoad()
if let path = NSBundle.mainBundle().pathForResource("data", ofType: "json") {
if let data = NSData(contentsOfFile: path) {
let json = JSON(data: data, options: NSJSONReadingOptions.AllowFragments, error: nil)
print (json["keys"]["117"])
let champlist = json["keys"].count
}
}
if self.revealViewController() != nil {
menuButton.target = self.revealViewController()
menuButton.action = "revealToggle:"
self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
}
// Do any additional setup after loading the view.
}
override func prefersStatusBarHidden() -> Bool {
return true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: UICollectionViewDataSource
func numberOfSectionsInCollectionView(championlist: UICollectionView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
func collectionView(championlist: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return self.champlist.count
}
func collectionView(championlist: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = championlist.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! CollectionViewCell
cell.image.image = UIImage(named: imagesArray[indexPath.row])
cell.label.text = "\(indexPath.row)"
//var cell = collectionView.cellForItemAtIndexPath(indexPath)
cell.layer.borderWidth = 2.0
cell.layer.borderColor = UIColor.whiteColor().CGColor
// Configure the cell
return cell
}
}
i got error (Use of unresolved identifier 'chmplist'

Answer 1

You cannot have a variable defined inside a scope (set of braces) and then return it outside of it.
do this
var chmplist = 0
if let path = NSBundle.mainBundle().pathForResource("data", ofType: "json") {
if let data = NSData(contentsOfFile: path) {
let json = JSON(data: data, options: NSJSONReadingOptions.AllowFragments, error: nil)
print (json["keys"]["117"]) // this print Moha
chmplist = (json["keys"].count) // this print number of keys
}
}
return chmplist
UPDATE: after seeing the updated code:
championlist is not the same as champlist :).