How to parse Json file in swift for 2 collection Views? - ios

Question

I have JSON file like this
{
"dicts": [
{
"main": "",
"note1": "",
"note2": "",
"note3": "",
"note4": ""
},
{
"main": "",
"note1": "",
"note2": "",
"note3": "",
"note4": "",
"note5": ""
},
{
"main": "",
"note1": "",
"note2": ""
}
]
}
My App has 2 view controllers each having collection view. In first collection view I will display JSON data main for each cell and when I click main I have trouble setting note data for that respective main content in each cell. All I came able to call any one note value.
Model:
struct SecPage {
var note1:String?
var note1:String?
var note2:String?
var note3:String?
var note4:String?
var note5:String?
}
static func downSec () -> [SecPage] {
let jsonFile = Bundle.main.url(forResource: "info", withExtension: "json")
let jsonData = try? Data(contentsOf: jsonFile!)
var noteArray = [SecPage]()
do{
if let jsonResult = try JSONSerialization.jsonObject(with: jsonData!, options: .mutableContainers) as? Dictionary<String,AnyObject>{
let name = jsonResult["dicts"] as? [Dictionary<String,AnyObject>]
for note in name!{
let note1 = note["note1"] as? String
let note2 = note["note2"] as? String
let note3 = note["note3"] as? String
let note4 = note["note4"] as? String
let note5 = note["note5"] as? String
let noteinfo = SecPage(note1: note1 ,note2: note2,note3: note3, note4: note4, note5: note5, note6: note6)
noteArray.append(noteinfo) }} } catch{print("note not found")}
return noteArray
}
View
class CollectionViewCell2: UICollectionViewCell {
#IBOutlet weak var img: UIImageView!
#IBOutlet weak var names: UILabel!
func updateUIsec(data:dataObj) {
names.text = data.note1
}
}
How to update in cell when I can able to enter only one data in name.text and how to efficiently use Model class to retrieve json file and send to view.

Answer 1

I'm still unsure if this is what you are looking for, your question is too broad and hard to understand. Comment the answer and I'll update it as needed ;)
VC1:
class VC1: UIViewController, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
#IBOutlet weak var collectionView: UICollectionView!
var modelData = [SecPage]()
var selectedItem: SecPage?
override func viewDidLoad() {
super.viewDidLoad()
collectionView.delegate = self
collectionView.dataSource = self
//collectionView.register... // Register UICollectionView cell subclass
modelData = SecPage.downSec()
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let secPage = modelData[indexPath.row]
let cell = collectionView.dequeue...
cell.textLabel.text = secPage.main
return cell
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let destination = segue.destination as? VC2{
destination.selectedItem = selectedItem
}
}
override func collectionView(_ collectionView: UICollectionView, didHighlightItemAt indexPath: IndexPath) {
selectedItem = modelData[indexPath.row]
performSegue...
}
}
VC2:
class VC2: UIViewController, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
#IBOutlet weak var collectionView: UICollectionView!
var selectedItem: SecPage? = nil
override func viewDidLoad() {
super.viewDidLoad()
collectionView.delegate = self
collectionView.dataSource = self
//collectionView.register... // Register UICollectionView cell subclass
modelData = SecPage.downSec()
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeue...
cell.updateUIsec(data: selectedItem!)
return cell
}
}
Cell:
class CollectionViewCell2: UICollectionViewCell {
#IBOutlet weak var img: UIImageView!
#IBOutlet weak var names: UILabel!
func updateUIsec(data: SecPage) {
names.text = data.note1
}
}