present ViewController when image inside a cell was pressed [duplicate] - ios

Question

This question already has answers here:
presentViewController from TableViewCell
(4 answers)
Closed 3 years ago.
I don't know how to present the viewController programmatically
I already finished creating a function for tapping of image. My only problem now is how to present the viewController. The image is inside the cell.
ItemsCell.swift
let tapGesture = UITapGestureRecognizer()
if let imageStr = obj.image {
item.optionImage.kf.setImage(with:URL(string:imageStr))
item.optionImage.isUserInteractionEnabled = true
tapGesture.addTarget(self, action: #selector(tappedImage))
item.optionImage.addGestureRecognizer(tapGesture)
} else {
item.optionImage.image = nil
}
The Function:
#objc func tappedImage() {
print("image tapped")
// let storyboard = UIStoryboard(name: "Main", bundle: nil)
// let controller = storyboard.instantiateViewController(withIdentifier: "AssetsViewController")
// controller.present(controller, animated: true, completion: nil)
}

Answer 1

Use Post Notification
class VC: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self, selector: #selector(presentVC(_:)), name: NSNotification.Name("PresentVCNotificationName"), object: nil)
}
#objc
func presentVC(_ notification: Notification) {
let cell = notification.object as? YourCell
let storyboard = UIStoryboard(name: "Your Storyboard Name", bundle: Bundle.main)
let vc = storyboard.instantiateViewController(withIdentifier: "Your Storyboard ID")
self.present(vc, animated: true, completion: nil)
}
deinit {
NotificationCenter.default.removeObserver(self)
}
}
class Cell: UITableViewCell {
#objc func tappedImage() {
NotificationCenter.default.post(name: NSNotification.Name("PresentVCNotificationName"), object: self)
}
}

Answer 2

In the interface builder tap on the viewController you want to show and make sure you defined a Storyboard Id. Create a class for that view controller, and make sure you have an outlet to the UIImageView that's supposed to show that image. Also make sure your class has a member of type UIImage.
// Assumed this class has Storyboard Id of: ImageViewerViewController
class ImageViewerViewController: UIViewController {
var imageView: UIImageView! // outlet from IB
var image: UIImage!
override func viewDidLoad() {
imageView.image = image;
}
}
In the view controller which contains the table:
class MainViewController: UIViewController {
.
.
.
// UITableViewDelegate
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = self.tableView.dequeueReusableCell(withIdentifier: ImageCell) as! YourC ImageCell ellClass
cell.containerVc = self
return cell
}
}
In the cell view:
class ImageCell: UITableViewCell {
weak var containerVc: UIViewController!
#objc func tappedImage() {
print("image tapped")
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "ImageViewerViewController") as! ImageViewerViewController
controller.image = item.optionImage.image
containerVc.present(controller, animated: true, completion: nil)
}
}