UITableView second load does not update until scroll - ios

Question

I have a view and a tableview which it shows file list. When user click button in view then I open tableview. User click the file list row then I started to download file from my server and when download start I changed the file name like "11111", when download finish change file name like "22222" (now change the file name later I will put progress view)
In first run everything is working correctly. Download and change name working. But in tableview when I come back to view and go to tableview again, download is working but not change then file name in tableview.
What is wrong in my code and how can I show text value?
PS: When print the text value in tableview before return cell, it shows correct text.
My codes:
func setProgressValue(_ dict : NSDictionary){
//Download progress value
let cellProgressValue = dict.value(forKey: "value") as! Float
if cellProgressValue < 1.0{
fileList[cellNum].title = "111111"
updateTable()
}
else{
fileList[cellNum].title = “22222”
updateTable()
}
}
func updateTable(){
self.tableView.reloadData()
}
func numberOfSections(in tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return fileList.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let identifier = "fileCell"
let cell = tableView.dequeueReusableCell(withIdentifier: identifier, for: indexPath)
cell.textLabel?.text = self.fileList[indexPath.row].title
return cell
}
//Call in viewdidload
func getFiles(){
for index in songList{
let urlString = "https://www.myapis.com/data/files"
Alamofire.request(urlString).validate().responseJSON { response in
let result = JSON(response.result.value)
if let items = result["items"].array {
for item in items {
//print(item)
let id = item["fileId"].stringValue
let title = ["fileName"].stringValue
let file = Files()
file.id = id
file.title = title
self.fileList.append(song)
}
self.tableView.reloadData()
}
}
}
}