Download Progress should show all over the application IOS Swift? - ios

Question

initial view of view control where we start the download Once the download started it look like this I were working in a mp3 application where I need to download the mp3 from the list shown when the user click the download button it shows the control for pause, stop and a progress view. my download is working but I could not show the progress for the download all over the application. For example: if I am downloading some "x.mp3" song if the user click x.mp3 in VC1 the progress should also shown in VC3. Then the big problem I am facing is after downloading the download control should hide. Due to tableview reload function I cannot handle the UIrefresh which should show the download control and also the download button accordingly.
I have attached both my ViewController class the cell class and also the design
I have attached the "CELLFORROWATINDEXPATH" function for your reference and I have enclosed all the download functionality in the cell class.
viewcontroller Cellforrowatindexpath
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let table_cell = tableView.dequeueReusableCell(withIdentifier: "LecturesVcCellID", for: indexPath) as! LecturesVcCell
let trackdata = searchResults[indexPath.row]
constantsList.playTypeArray.boolArray.append(false)
table_cell.configure(track: trackdata, index: indexPath.row)
table_cell.downloadbtn.tag = indexPath.row
table_cell.pauseButton.tag = indexPath.row
table_cell.cancelButton.tag = indexPath.row
table_cell.progressLabel.tag = indexPath.row
let x : Int = trackdata.classNumber as! Int
let className = String(x)
if index == indexPath.row {
table_cell.img_play.image=#imageLiteral(resourceName: "playing_track")
table_cell.lbl_SubTitle.text = "Now playing"
table_cell.lbl_SubTitle.textColor = #colorLiteral(red: 0.968627451, green: 0.7490196078, blue: 0.4823529412, alpha: 1)
}else {
table_cell.img_play.image=#imageLiteral(resourceName: "play_track")
table_cell.lbl_SubTitle.text = String(format: "Class - %# | %#", className,(trackdata.timeoftrack!))
table_cell.lbl_SubTitle.textColor = UIColor.lightGray
}
str_image = "https://www.imaginetventures.name/swamiji/wp-content/uploads/2019/01/introved.png"
constantsList.playTypeArray.imageLecture = str_image
table_cell.img_Show.sd_setImage(with: URL(string: str_image), placeholderImage: UIImage(named: "placeholder.png"))
table_cell.navigationController = self.navigationController
if str_Type .isEqual(to: "Playlist") {
table_cell.downloadbtn.isHidden = true
// table_cell.playlistAdditionImageview.isHidden = false
if tableView.cellForRow(at: indexPath)?.accessoryType == .checkmark {
table_cell.playlistAdditionImageview.isHidden = true
}else {
table_cell.playlistAdditionImageview.isHidden = false
}
}else {
table_cell.downloadbtn.setImage(UIImage(named: "DATA11"), for: .normal)
// table_cell.playlistAdditionImageview.isHidden = true
}
table_cell.selectionStyle = .none
return table_cell
}
viewcontrollercell classfile:
override func awakeFromNib() {
super.awakeFromNib()
let appDelegate = UIApplication.shared.delegate as! AppDelegate
context = appDelegate.persistentContainer.viewContext
entity = NSEntityDescription.entity(forEntityName: "DownloadList", in: context)
}
#IBAction func pauseBtnAction (_ sender: UIButton) {
if(downloadTask != nil && isDownload) {
downloadTask!.cancel(byProducingResumeData: { (resumeData) -> Void in
self.downloadData = resumeData
})
isDownload = false
downloadTask = nil
pauseButton.setImage(UIImage(named: "start-button"), for: .normal)
}else
if(!isDownload && downloadData != nil) {
if let resumeData = self.downloadData {
downloadTask = urlSession?.downloadTask(withResumeData: resumeData)
} else {
let url:URL = URL(string: "\((constantsList.playTypeArray.arr_subCatagriesLecture.object(at: sender.tag) as AnyObject).value(forKey: "mp3") as! String)")!
downloadTask = downloadsSession?.downloadTask(with: url)
}
downloadTask!.resume()
isDownload = true
pauseButton.setImage(UIImage(named: "x"), for: .normal)
}
}
#IBAction func cancelBtnClicked (_ sender: UIButton) {
downloadTask?.cancel()
downloadData = nil
isDownload = false
downloadTask = nil
progress.progress = 0
progressLabel.text = "0%"
progress.setProgress(0.0, animated: true)
cancelButton.isHidden = true
pauseButton.isHidden = true
downloadbtn.isHidden = false
progressLabel.isHidden = true
progress.isHidden = true
}
func urlSessionDidFinishEvents(forBackgroundURLSession session: URLSession) {
DispatchQueue.main.async {
if let appDelegate = UIApplication.shared.delegate as? AppDelegate,
let completionHandler = appDelegate.backgroundSessionCompletionHandler {
appDelegate.backgroundSessionCompletionHandler = nil
completionHandler()
}
}
}
#IBAction func downloadBtnAction(_ sender: UIButton) {
// sender.pulse()
self.reachability = Reachability.init()
if ((self.reachability?.connection) != .none) {
switch self.reachability?.connection {
case .wifi?:
print("Wifi")
print(sender.tag)
constantsList.playTypeArray.typeofnetwork = true
downloadTapped(sender: sender.tag)
case .cellular?:
print("mobile data")
print(sender.tag)
let alert = UIAlertController(title: "Mobile Data usage Alert!", message: "Downloads will be using mobile data!!", preferredStyle: UIAlertController.Style.alert);
let action1 = UIAlertAction(title: "Ok", style: .default) { (action:UIAlertAction) in
self.downloadTapped(sender: sender.tag)
}
let action2 = UIAlertAction(title: "Cancel", style: .default) { (action:UIAlertAction) in
print("Cancelled")
}
alert.addAction(action1)
alert.addAction(action2)
self.navigationController?.present(alert, animated: true, completion: nil)
case .none:
print("Network Not reachable")
case .some(.none):
print("Some")
}
}else {
print("No Internet")
}
}
func downloadTapped(sender : Int) {
constantsList.playTypeArray.arrayDownloadSort.append(sender as NSNumber)
print(constantsList.playTypeArray.arrayDownloadSort)
constantsList.playTypeArray.boolArray[sender] = true
showDownloadControls = true
downloadbtn.isHidden = true
pauseButton.isHidden = false
cancelButton.isHidden = false
progressLabel.isHidden = true
progress.isHidden = false
progressLabel.text = "Downloading..."
var urlConfiguration:URLSessionConfiguration!
urlConfiguration = URLSessionConfiguration.default
let queue:OperationQueue = OperationQueue.main
urlSession = URLSession.init(configuration: urlConfiguration, delegate: self, delegateQueue: queue)
let url:NSURL = NSURL(string: "\((constantsList.playTypeArray.arr_subCatagriesLecture.object(at: sender) as AnyObject).value(forKey: "mp3") as! String)")!
downloadTask = urlSession.downloadTask(with: url as URL)
downloadTask.resume()
}
//DOWNLOADING THE FILE UPDATE THE PROGRESS
func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didWriteData bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) {
// 2
let progress1 = Float(totalBytesWritten) / Float(totalBytesExpectedToWrite);
// 3
print(progress1)
// 4
// OperationQueue.main.addOperation
DispatchQueue.main.async (execute: {
self.isDownload = true
// 2
constantsList.playTypeArray.isDownloading = true
self.progress.setProgress(progress1, animated: false)
self.progressLabel.text = String(progress1 * 100) + "%"
constantsList.playTypeArray.setprogress = progress1
let i = 0
if progress1 == 1.0 {
constantsList.playTypeArray.isDownloading = false
print(i + 1)
}
})
}
//AFTER DOWNLOADING SAVE THE FILE TO APP DATA
func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {
print("Finish Downloading")
let filemanager = FileManager()
let directoryURL = filemanager.urls(for: .documentDirectory, in: .userDomainMask)[0]
print(directoryURL)
let docDirectoryURL = NSURL(fileURLWithPath: "\(directoryURL)")
print(docDirectoryURL)
let destinationFileName = downloadTask.originalRequest?.url?.lastPathComponent
print(destinationFileName!)
let destinationURL = docDirectoryURL.appendingPathComponent("\(destinationFileName!)")
print(destinationURL!)
if let path = destinationURL?.path {
if filemanager.fileExists(atPath: path) {
do {
try filemanager.removeItem(at: destinationURL!)
}catch let error as NSError{
print(error.localizedDescription)
}
}
}
do {
try filemanager.copyItem(at: location, to: destinationURL!)
print(destinationURL!)
print(downloadbtn.tag)
newUser = NSManagedObject(entity: entity!, insertInto: context)
dic66 = constantsList.playTypeArray.arr_subCatagriesLecture.object(at: downloadbtn.tag) as? NSDictionary
newUser.setValue(dic66?.value(forKey: "classname") as! NSNumber, forKey: "classname")
newUser.setValue("\(String(describing: dic66?.value(forKey: "time") as! String))", forKey: "time")
newUser.setValue("\(String(describing: dic66?.value(forKey: "title") as! String))", forKey: "songtitle")
newUser.setValue("\(destinationURL!.path)", forKey: "mp3Url")
newUser.setValue("\(String(describing: constantsList.playTypeArray.imageLecture!))", forKey: "imageurl")
do {
try context.save()
print(context)
self.cancelButton.isHidden = true
self.pauseButton.isHidden = true
self.downloadbtn.isHidden = true
self.progressLabel.isHidden = true
self.progress.isHidden = true
print("Successful")
} catch {
print("failed")
}
}catch {
print("Error while copying file")
}
downloadData = nil;
}
func configure(track: Track,index: Int) {
var filefound: Bool = false
var shopwControls: Bool = true
if(constantsList.playTypeArray.boolArray[index]) {
filefound = true
shopwControls = false
self.progress.setProgress(constantsList.playTypeArray.setprogress, animated: true)
}
lbl_Title.text = track.songTitle
//CLASS AND VOLUME UPDATION
let x : Int = track.classNumber as! Int
let className = String(x)
lbl_SubTitle.text = String(format: "Class - %# | %#", className,(track.timeoftrack!))
//core Data checking for already downloaded file
request.returnsObjectsAsFaults = false
request.resultType = .dictionaryResultType
do {
let result = try context.fetch(request)
dic66 = constantsList.playTypeArray.arr_subCatagriesLecture.object(at: index) as? NSDictionary
for data in result as! [[String:Any]] {
print(data["classname"] as! Int)
print(dic66?.value(forKey: "classname") as! Int)
if data["classname"] as! Int == (dic66?.value(forKey: "classname") as! Int) {
filefound = true
}
}
} catch {
print("Failed")
}
// If the track is already downloaded, enable cell selection and hide the Download button
selectionStyle = filefound ? UITableViewCell.SelectionStyle.gray : UITableViewCell.SelectionStyle.none
downloadbtn.isHidden = filefound
pauseButton.isHidden = shopwControls
cancelButton.isHidden = shopwControls
progress.isHidden = shopwControls
}
}