The delegate function is not getting called on button Click - ios

Question

In Swift xcode not able to call the delegate function though defined correctly.
Using it to get the value of active cell.
button declaration file
import UIKit
protocol CellDelegate : class {
func didClickPlayButton(_ sender: VideoTableViewCell)
}
class VideoTableViewCell: UITableViewCell {
#IBOutlet weak var cellView: UIView!
#IBOutlet weak var VideoThumbnail : UIImageView!
#IBOutlet weak var VideoName: UILabel!
#IBOutlet weak var uploadDate: UILabel!
#IBOutlet weak var playButton: UIButton!
weak var Delegate: CellDelegate?
#IBAction func pressedPlay(_ sender: UIButton) {
Delegate?.didClickPlayButton(self)
print("PLAY")
}
}
Function declaration file
import UIKit
import FirebaseAuth
import FirebaseDatabase
import AVFoundation
import AVKit
class VideoVC: UIViewController,UITableViewDelegate,UITableViewDataSource,CellDelegate {
let avPlayerViewController = AVPlayerViewController()
var avPlayer : AVPlayer?
func didClickPlayButton(_ sender : VideoTableViewCell) {
let indexPath = self.tableview.indexPath(for: sender)
print("Play Button Pressed")
if let index = indexPath?.row
{
let movieUrl : NSURL? = NSURL(string : posts[(index)].noticeURL)
if let url = movieUrl
{
self.avPlayer = AVPlayer(url: url as URL)
self.avPlayerViewController.player = self.avPlayer
self.present(self.avPlayerViewController, animated: true, completion: {
self.avPlayerViewController.player?.play()
})
}
}
}
#IBOutlet weak var tableview: UITableView!
var posts = [Post]()
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return posts.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableview.dequeueReusableCell(withIdentifier: "Videocell") as! VideoTableViewCell
cell.selectionStyle = .none
cell.uploadDate?.text = posts[indexPath.row].uploadDate
cell.VideoName?.text = posts[indexPath.row].noticeName
cell.VideoThumbnail?.image = thumbnail(sourceURL: (URL(string : posts[indexPath.row].noticeURL)!))
return cell
}
override func viewDidLoad() {
super.viewDidLoad()
tableview.dataSource = self
self.tableview.rowHeight = 300
loadposts()
}
func loadposts()
{
Database.database().reference().child("Videos").observe(.childAdded) { (snapshot : DataSnapshot) in
if let dict = snapshot.value as? [String : Any]
{
let uploaddate = dict["Date"] as! String
let noticename = dict["Name"] as! String
let ImageUrl = dict["URL"] as! String
let post = Post(uploadedDate: uploaddate, nameofnotice: noticename, URLofnotice: ImageUrl)
self.posts.append(post)
self.tableview.reloadData()
}
}
}
func thumbnail(sourceURL:URL) -> UIImage {
let asset = AVAsset(url: sourceURL)
let imageGenerator = AVAssetImageGenerator(asset: asset)
let time = CMTime(seconds: 1, preferredTimescale: 1)
let imageRef = try? imageGenerator.copyCGImage(at: time, actualTime: nil)
if imageRef != nil
{
let uiimage = UIImage(cgImage: imageRef!)
return uiimage
}
else
{
return #imageLiteral(resourceName: "BG_DDIT")
}
}
}

Answer 1

In cellForRow
cell.Delegate = self
and implement the delegate method inside PdfVC
func didClickPlayButton(_ sender: VideoTableViewCell){----}