Controlling two different collectionview - ios

Question

I am currently trying to control two different collection view. I have also embedded buttons in each of the collection views I want to make each of them contain a set of values from an array. This is my code so far, I don't know what I should actually do to achieve that:
import UIKit
class MyButtonCell: UICollectionViewCell{
#IBOutlet weak var buttonOne: UIButton!
#IBOutlet weak var targetButton: UIButton!
var callback: (() -> ())?
override init(frame: CGRect) {
super.init(frame: frame)
commonInit()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
commonInit()
}
func commonInit() -> Void {
contentView.layer.borderWidth = 1
contentView.layer.borderColor = UIColor.black.cgColor
}
#IBAction func buttonTapped(_ sender: UIButton) {
callback?()
}
}
class StevenViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {
let buttonTitles: [String] = [
"4", "6", "7", "8"
]
var targetButtonTitles: [String] = [
"", "", "", ""
]
var current:String = ""
#IBOutlet var collectionView: UICollectionView!
#IBOutlet var targetCollection: UICollectionView!
override func viewDidLoad() {
super.viewDidLoad()
targetCollection.delegate = self
targetCollection.dataSource = self
collectionView.delegate = self
collectionView.dataSource = self
}
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return buttonTitles.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "myCellID", for: indexPath) as! MyButtonCell
let targetCell = targetCollection.dequeueReusableCell(withReuseIdentifier: "myCellID", for: indexPath) as! MyButtonCell
// set the button title (and any other properties)
cell.buttonOne.setTitle(buttonTitles[indexPath.item], for: [])
targetCell.targetButton.setTitle(self.targetButtonTitles[indexPath.item], for: [])
// set the cell's callback closure
cell.callback = {
print("Button was tapped at \(indexPath)")
self.targetButtonTitles.append(self.buttonTitles[indexPath.item])
print(self.targetButtonTitles)
// do what you want when the button is tapped
}
return targetCell
}
}
buttonTitles and targetButtonTitles are the two arrays I want each of my collectionviews to contain.
This is what it looks like right now - both are showing the same array. I understand that I probably should have different identifier ID for the cells, but once I do that, it gave me an error saying "could not dequeue a view of kind: UICollectionElementKindCell with identifier target"

Answer 1

In UICollectionViewDelegate & UICollectionViewDataSource
You can use this code snippet to identify the current UICollectionView.
if collectionView == [YOUR_COLLECTIONVIEW_QUTLET] {
}