Swift 3 , CollectionView, Alamofire 4 : finding nil while unwrapping a value - uicollectionview

Question

Here is my JSON response
{
"category_list" : [
{
"category_imag" : "http:\/\/xxx\/wp-content\/uploads\/2016\/10\/img-thing.jpg",
"category_name" : "category 1",
"category_description" : "dsadsadas",
"category_id" : 6
},
{
"category_imag" : "http:\/\/xxx\/wp-content\/uploads\/2016\/09\/7075hp_2_2.jpg",
"category_name" : "category 2",
"category_description" : "dasdadasdas",
"category_id" : 12
}
]
}
items are***********************************************
{
"category_imag" : "http:\/\/xxx\/wp- content\/uploads\/2016\/10\/img-thing.jpg",
"category_description" : "dsadsadas",
"category_name" : "category 1",
"category_id" : 6
}
{
"category_imag" : "http:\/\/xxx\/wp- content\/uploads\/2016\/09\/7075hp_2_2.jpg",
"category_description" : "dasdadasdas",
"category_name" : "category 2",
"category_id" : 12
}
items number***********************************************
2
fatal error: unexpectedly found nil while unwrapping an Optional value
(lldb)
here is the function I am using to fetch JSON using Alamofire & SwiftyJSON
func getJSON(){
let getEndPoint: String = "http://xxx/api/category_list/"
Alamofire.request(getEndPoint)
.responseJSON { response in
guard response.result.error == nil else {
// got an error in getting the data, need to handle it
print("error calling GET")
print(response.result.error!)
return
}
if let value = response.result.value {
let json = JSON(value)
print(json)
// print(json["main_content"].array)
let categoryList = json["category_list"].arrayValue
for items in categoryList {
//self.productList += [HomeFeedJSON(items:items )]
self.getCategoryList.append(CategoryList(items: items))
print(items)
}
print("items are***********************************************")
print(self.getCategoryList.count)
DispatchQueue.main.async {
self.afData = 1
self.collectionView?.reloadData()
}
}
}
}
and here is the model class I am using for assigning the values fetched from JSON
import Foundation
import SwiftyJSON
class CategoryList {
var category_name: String?
var category_imag: URL?
var category_description: String?
init(items: JSON){
self.category_name = items["category_name"].stringValue
self.category_imag = items["category_imag"].URL
self.category_description = items["category_description"].stringValue
}
}
I don't want to bother people but I have tried all possible way I could, its showing nil on my collectionViewCell . in numberOfItemsInSection I am getting intended result but at cellForItemAt indexPath it shows nil value and crashes. Here is my cellForItemAt indexPath
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CatagoryShopCell", for: indexPath) as! CatagoryShopCell
if afData == 1 {
let myCategory = self.getCategoryList[indexPath.row]
cell.catagoryName.text = myCategory.category_name
cell.catagoryDesc.text = myCategory.category_description
let categoryImg = myCategory.category_imag
SDWebImageManager.shared().downloadImage(with: categoryImg, options: [], progress: nil) { downloadedImage, error, cacheType, isDownloaded, url in
cell.catagoryPicture.image = downloadedImage
}
}
return cell
}
I have used the same function/model class in a tableView in it works just fine, but I can't sort it out how its not finding value in my model class here at collectionView . Please any kind person help. Thank you in advance.