leak memory with performSegue with identifier in swift 3 - memory-leaks

Question

please i have an problem with perform segue with identifier in table view didSelectRow method every time i tapped the cell the memory is increasing
the following is my code :
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// firstly i need to check if edit button is true so i can select cell
if isShowToolBar {
// her for hold selected index
let cell = tableView.cellForRow(at: indexPath) as? MovieDownloadedTableViewCell
if let cell = cell {
cell.movieCheckMarkImageView.isHidden = false
cell.movieEmptyCircleImageView.isHidden = true
operationDocumentDirectoryObject.dictionaryHoldIndexCellForDisplayWhichCellSelected.updateValue(indexPath.row, forKey: indexPath.row)
// start hold URL
operationDocumentDirectoryObject.dictionaryForHoldURLSelected.updateValue(operationDocumentDirectoryObject.arrayOfMovieURL![indexPath.row], forKey: indexPath.row)
}// end the if let cell
}else{
// her for show the content folder
let cell = tableView.cellForRow(at: indexPath) as? MovieDownloadedTableViewCell
if let cell = cell {
if cell.fetchURL!.pathExtension == "" {
performSegue(withIdentifier: "ShowFolder", sender: indexPath.row)
}else{
// playing the video
performSegue(withIdentifier: "PlayingMovie", sender: cell.fetchURL!.lastPathComponent)
}// end the if for check path extenstion
}// end the if let cell
cell = nil
}// end the if for the isShowToolbar
}
the above method have memory leak in perform segue and cause increasing memory with the (if cell.fetchURL!.pathExtension == "") also make memory leak
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "MoveFile" {
if let destination = segue.destination as? MoveMovieViewController {
destination.operationDocumentDirectoryObject.dictionaryForHoldURLSelected = self.operationDocumentDirectoryObject.dictionaryForHoldURLSelected
}
}else if segue.identifier == "ShowFolder" {
if let destination = segue.destination as? ShowContentFolderMovieViewController {
if let fetchIndex = sender as? Int {
destination.operationDocumentDirectory.folderName = self.operationDocumentDirectoryObject.arrayOfMovieURL![fetchIndex].lastPathComponent
}
}
}else if segue.identifier == "PlayingMovie" {
// make an object for the playing video view controller
if let destination = segue.destination as? PlayingMovieViewController {
if let movieName = sender as? String {
destination.operationDocumentDirectory.movieName = movieName
}
}
}// end the condition for the segue
}
although the deinit is call success in the view controller but i have still leaking and increasing memory
please help for what is my wrong code?
thank you very much

Answer 1

I suspect you have a strong reference cycle somewhere in your code - although, not in the bit that you have posted as far as I can tell. However, you say that your deinit is being called successfully. Did you check to see if the deinits of all of the view controllers you are segueing to are being called at the expected time (such as when you dismiss PlayingMovieViewController or ShowContentFolderMovieViewController)? Observing the xcode debug console for deinit print statements to check for the appropriate releases in memory is the best way to go. Your memory leak could be coming from somewhere else though. You should look out for strong references elsewhere in your code (maybe a delegate holding on to sender objects?).