One UITableViewCell is controlling others - ios

Question

Does anyone know what's happening here? I've configured a UITableView with CollectionViewCells, and each of these cells is supposed to operate independently of each other, yet when I swipe one it controls another cell which is 3 cells underneath it.
Tried to reconfigure my UITableViewCells and the CollectionViewCells. But I'm not exactly sure what to do
//TableView controler
import UIKit
import CardsLayout
import CHIPageControl
class eventsFeed: UIViewController, UITableViewDelegate, UITableViewDataSource{
// Global Variable
var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = UIColor.white
tableView = UITableView(frame: CGRect(x: self.view.bounds.minX, y: self.view.bounds.minY+UIApplication.shared.statusBarFrame.height, width: self.view.bounds.width, height: self.view.bounds.height))
tableView.delegate = self
tableView.separatorStyle = .none
tableView.dataSource = self
tableView.showsVerticalScrollIndicator = false
self.view.addSubview(tableView)
tableView.register(TableViewCell.self, forCellReuseIdentifier: "TableViewCell")
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: TableViewCell = tableView.dequeueReusableCell(withIdentifier: "TableViewCell", for: indexPath) as! TableViewCell
cell.backgroundColor = UIColor.white
cell.selectionStyle = .none
return cell
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 10
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return 430.0;//Choose your custom row height
}
}
//CollectionViewCell for TableView
import UIKit
import CardsLayout
class TableViewCell: UITableViewCell, UICollectionViewDataSource, UICollectionViewDelegate {
var collectionView: UICollectionView!
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
layout.scrollDirection = UICollectionViewScrollDirection.horizontal
collectionView = UICollectionView(frame: CGRect(x: 0, y:0, width: UIScreen.main.bounds.width, height: 410.0), collectionViewLayout: layout)
collectionView.center = CGPoint(x: 187.5, y: 180)
collectionView.collectionViewLayout = CardsCollectionViewLayout()
collectionView.delegate = self
collectionView.dataSource = self
collectionView.isPagingEnabled = true
collectionView.showsHorizontalScrollIndicator = false
collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "CollectionViewCell")
collectionView.backgroundColor = UIColor.white
self.addSubview(collectionView)
}
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)!
}
var colors: [UIColor] = [
UIColor(red: 237, green: 37, blue: 78),
UIColor(red: 249, green: 220, blue: 92),
UIColor.blue,
UIColor(red: 1, green: 25, blue: 54),
UIColor(red: 255, green: 184, blue: 209),
UIColor(red: 237, green: 37, blue: 78),
UIColor(red: 249, green: 220, blue: 92)
]
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath)
cell.layer.cornerRadius = 12.0
cell.backgroundColor = colors[indexPath.row]
return cell
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return colors.count
}
}
Video of issue: https://www.reddit.com/r/iOSProgramming/comments/btcok4/does_anyone_know_whats_happening_here_ive/

Answer 1

Cells are reused. That means that you have to choose different strategy of working with them.
Save somewhere current state for each table view cell (for example in structs in an array) and then configure cell based on this state in cellForRowAt delegate's method.