reload UICollectionview using swiftyJSON & TRON - json

Question

i am having trouble to reload my UICollectionview after i got my json data using TRON pod (it is like alamofire but in different structure i think)
and i parsed it using swiftyJSON
i am searching for the answer about three days and i dont know what i am missing
...
import UIKit
import SwiftyJSON
import TRON
class FeaturedAppViewController: UICollectionViewController ,
UICollectionViewDelegateFlowLayout {
private let cellID = "cellId"
var appCategories : [AppCategory]?
override func viewDidLoad() {
super.viewDidLoad()
fetchHomeApps()
collectionView?.backgroundColor = .white
collectionView?.register(CategoryCell.self, forCellWithReuseIdentifier: cellID)
}
class Home : JSONDecodable{
var apps : [App]
required init(json: JSON) throws {
print("now ready to parse :\n", json)
var apps = [App]()
let catJSON = json["categories"]
let array = json["categories"].array
for app in array!{
for index in 0...catJSON.count - 1 {
let name = app["apps"][index]["Name"].stringValue
let id = app["apps"][index]["Id"].intValue
let imageName = app["apps"][index]["ImageName"].stringValue
let category = app["apps"][index]["Category"].stringValue
let price = app["apps"][index]["Price"].doubleValue
let appsIdentification = App(iD: id, name: name, category: category, price: price, imageName: imageName)
apps.append(appsIdentification)
}
}
self.apps = apps
}
}
class JSONError : JSONDecodable {
required init(json: JSON) throws {
print("josn Error")
}
}
fileprivate func fetchHomeApps() {
print("123")
let request : APIRequest<AppCategory , JSONError> = tron.request("/appstore/featured")
request.perform(withSuccess: { (AppCategory) in
print("Successfully Fetched")
print(AppCategory.apps.count)
self.collectionview.reloaddata()
}) { (err) in
print("couldnt Fetch babe \n" , err)
}
}
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if let count = appCategories?.count {
return count
}else{
return 0
}
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellID, for: indexPath) as! CategoryCell
cell.appCategory = appCategories?[indexPath.item]
return cell
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: view.frame.width , height: 230)
}
let tron = TRON(baseURL: "http://www.statsallday.com")
}
this is my view controller and there is a models page
import UIKit
import SwiftyJSON
import TRON
class AppCategory : NSObject , JSONDecodable {
var name : String?
var type : String?
let Url = "http://www.statsallday.com/appstore/featured"
var apps : [App]
required init(json: JSON) throws {
print("now ready to parse :\n", json)
var apps = [App]()
let catJSON = json["categories"]
let array = json["categories"].array
for app in array!{
for index in 0...catJSON.count - 1 {
let name = app["apps"][index]["Name"].stringValue
let id = app["apps"][index]["Id"].intValue
let imageName = app["apps"][index]["ImageName"].stringValue
let category = app["apps"][index]["Category"].stringValue
let price = app["apps"][index]["Price"].doubleValue
let appsIdentification = App(iD: id, name: name, category: category, price: price, imageName: imageName)
apps.append(appsIdentification)
}
}
self.apps = apps
}
}
struct App {
let iD : Int
let name : String
let category : String
let price : Double
let imageName : String
}
i think i should add something in fetchHomeApps function but i dont know what...
actually i started programming since 34 days age and sorry if i my code is silly.

Answer 1

You should call self.yourCollectionView.reloadData() when you fetched data from API and parse with swiftyJson. Only when appCategories have data not empty array object.