how to pass data from cell to another ViewController - ios

Question

#TusharMordiya Please check this image
I have created a tableView inside a CollectionView.The contents of the view are UIImage and a UILabel.I want to design the cell in which when I click on a cell the image and label must go to another ViewController.
import UIKit
class ExploreTableViewCell: UITableViewCell, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout{
#IBOutlet var collectionView: UICollectionView!
var namearr = ["images-1", "images-2", "images-3", "images-4", "images-5"]
override func awakeFromNib() {
super.awakeFromNib()
collectionView.delegate = self
collectionView.dataSource = self
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 10
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)
return cell
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: 132, height: 134)
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let vc = UIStoryboard(name: "DetailViewController", bundle: nil).instantiateViewController(withIdentifier:"DetailViewController") as? DetailViewController
vc?.name = namearr[indexPath.row]
vc?.img.image = UIImage(named: namearr[indexPath.row])
//self.navigationController?.pushViewController(vc, animated: true)
// showing error in here and while declaring object of viewcontroller
}
}

Answer 1

Please try this.
Add function for get top most view controller
extension UIApplication {
class func topViewController(_ viewController: UIViewController? = UIApplication.shared.connectedScenes
.filter({$0.activationState == .foregroundActive})
.compactMap({$0 as? UIWindowScene})
.first?.windows
.filter({$0.isKeyWindow}).first?.rootViewController) -> UIViewController? {
if let nav = viewController as? UINavigationController {
return topViewController(nav.visibleViewController)
}
if let tab = viewController as? UITabBarController {
if let selected = tab.selectedViewController {
return topViewController(selected)
}
}
if let presented = viewController?.presentedViewController {
return topViewController(presented)
}
return viewController
}
}
Use this code in your didSelectItemAt method
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let storyBoard = UIStoryboard(name: "Main", bundle: nil)
if let vc = storyBoard.instantiateViewController(withIdentifier:"DetailViewController") as? DetailViewController {
vc.name = namearr[indexPath.row]
print("You tapped the cell\(indexPath) with car name \(namearr[indexPath.row]) ")
UIApplication.topViewController()?.navigationController?.pushViewController(vc, animated: true)
}
}
In your Detail Screen
class DetailViewController: UIViewController {
#IBOutlet var lbl: UILabel!
#IBOutlet var img: UIImageView!
var name = ""
override func viewDidLoad() {
super.viewDidLoad()
lbl.text = name
img.image = UIImage(named: name)
}
}

Answer 2

let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier:"DetailViewController") as? DetailViewController
change storyBoard name to Main