I'm trying to link a button from storyboard to my viewcontroller code which supposed to get or download a file from Firebase Storage which is already linked to my app. but no luck.
ViewController first code
#IBAction func downloadButtonPressed(_ sender: Any) {
let userID = Auth.auth().currentUser?.uid
guard let url = URL(string: "https://console.firebase.google.com/project/rent-to-own-93ff1/storage/rent-to-own-93ff1.appspot.com/files/users/userinformation/\(userID!)/folder/Document1.pdf") else { return }
let urlSession = URLSession(configuration: .default, delegate: self, delegateQueue: OperationQueue())
let downloadTask = urlSession.downloadTask(with: url)
downloadTask.resume()
}
second code
#IBAction func downloadButtonPressed(_ sender: Any) {
let userID = Auth.auth().currentUser?.uid
let storageRef = Storage.storage().reference().child("users").child("userinformation").child(userID!).child("folder/Document1.pdf");
storageRef.downloadURL { (URL, error) -> Void in
if (error != nil) {
// Handle any errors
} else {
// Get the download URL for 'images/stars.jpg'
}
}
}
Firebase Storage
none of the codes are working for me even after following firebase steps from their website.
Also after pressing download button, the conosole shows the following
022-06-07 22:15:32.241908+0200 Rent To Own Namibia[38234:1806546] GTMSessionFetcher invoking fetch callbacks, data {length = 665, bytes = 0x7b0a2020 226b696e 64223a20 22696465 ... 7d0a2020 5d0a7d0a }, error (null)
Related
I have a WKWebView which displayed pdf. I want to share the file to another devices such as iPad, iPhone.... using the share button. I tried to display the pdf in preview so it will have the iOS share button the code below.
import UIKit
import WebKit
class ShowPDFView: UIViewController, UIDocumentInteractionControllerDelegate {
#IBAction func SharePDFFile(_ sender: Any) {
let fileName = "testPDF"
guard let urlPath = Bundle.main.url(forResource: fileName, withExtension: "pdf") else {return}
let controller = UIDocumentInteractionController(url: urlPath)
controller.delegate = self
controller.presentPreview(animated: true)
}
func documentInteractionControllerViewControllerForPreview(controller: UIDocumentInteractionController!) -> UIViewController! {
return self
}
func documentInteractionControllerViewForPreview(controller: UIDocumentInteractionController!) -> UIView! {
return self.view
}
func documentInteractionControllerRectForPreview(controller: UIDocumentInteractionController!) -> CGRect{
return self.view.frame
}
I got runtime error.
[MC] Reading from private effective user settings.
The preview does not loaded. Does anyone know why?
This function works for me. In Swift 4
#IBAction func SharePDFFile(_ sender: Any) {
let fm = FileManager.default
var pdfURL = (fm.urls(for: .documentDirectory, in: .userDomainMask)).last! as URL
pdfURL = pdfURL.appendingPathComponent("johnMilky.pdf") as URL
//Rename document name to "myFile.pdf"
let url = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("johnMilkyFile.pdf") as NSURL
do {
let data = try Data(contentsOf: pdfURL)
try data.write(to: url as URL)
let activitycontroller = UIActivityViewController(activityItems: [url], applicationActivities: nil)
if activitycontroller.responds(to: #selector(getter: activitycontroller.completionWithItemsHandler))
{
activitycontroller.completionWithItemsHandler = {(type, isCompleted, items, error) in
if isCompleted
{
print("completed")
}
}
}
//activitycontroller.excludedActivityTypes = [UIActivity.ActivityType.airDrop]
activitycontroller.popoverPresentationController?.sourceView = self.view
self.present(activitycontroller, animated: true, completion: nil)
}
catch {
print(error)
}
}
I am in desperate need of help.
I am trying to create an app which allows the user to save the pdf file from a link such as the example one I gave in the subjectLinks array, all those links point to a pdf page and I am trying to download it and save it in my app. So far, I have scoured everywhere and found a way to do it using the Files app, so what I'm doing in the code is downloading the data of the pdf and opening it using UIDocument and presentPreview to display it and I have managed to allow the user to share the downloaded file and save it to Files as well.
However the problem arises as I want to make it so that when the user clicks download the file is automatically saved to the Files app in a directory so that the user does not need to click the option button then choose Save to Files and then look for where to save it. Is that possible??
If that is not possible, at least when the user chooses the option button and clicks Save to Files, it would automatically create a separate directory where the user can see and pdf file can be saved?
I want to do this as most times, when Save to Files is chosen, saving 'On My iPhone' is not available as there is no directory or such present so it can only be saved to google drive or iCloud Drive and this is a major inconvenience.
Sorry for the long post. BUT I WOULD BE EXTREMELY GRATEFUL IF ANYONE COULD HELP SOLVE MY PROBLEM. THANK YOU SOOOOO MUCH IN ADVANCE :)
P.S everything in my code works perfectly fine so far, its just I am absolutely clueless as to how to implement the features I have outlines above?
import UIKit
import StoreKit
class TableViewController: UITableViewController {
let documentInteractionController = UIDocumentInteractionController()
let subjectLinks = ["https://pastpapers.papacambridge.com/Cambridge%20International%20Examinations%20(CIE)/AS%20and%20A%20Level/Accounting%20(9706)/2015%20Jun/9706_s15_qp_42.pdf", "https://pastpapers.papacambridge.com/Cambridge%20International%20Examinations%20(CIE)/AS%20and%20A%20Level/Economics%20(9708)/2017%20Jun/9708_s17_qp_12.pdf", "https://pastpapers.papacambridge.com/Cambridge%20International%20Examinations%20(CIE)/AS%20and%20A%20Level/Mathematics%20(9709)/2018-May-June/9709_s18_qp_12.pdf"]
override func viewDidLoad() {
super.viewDidLoad()
documentInteractionController.delegate = self as? UIDocumentInteractionControllerDelegate
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return subjectLinks.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
cell.textLabel?.text = subjectLinks[indexPath.row]
return cell
}
override func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]?
{
// 1
let shareAction = UITableViewRowAction(style: UITableViewRowActionStyle.default, title: "Download" , handler: { (action:UITableViewRowAction, indexPath: IndexPath) -> Void in
// 2
let downloadMenu = UIAlertController(title: nil, message: "Download this paper", preferredStyle: .actionSheet)
let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel, handler: nil)
downloadMenu.addAction(UIAlertAction(title: "Download", style: UIAlertActionStyle.destructive, handler: { action in self.storeAndShare(withURLString: self.subjectLinks[indexPath.row])}))
downloadMenu.addAction(cancelAction)
self.present(downloadMenu, animated: true, completion: nil)
})
// 3
let rateAction = UITableViewRowAction(style: UITableViewRowActionStyle.default, title: "Rate" , handler: { (action:UITableViewRowAction, indexPath:IndexPath) -> Void in
// 4
let rateMenu = UIAlertController(title: nil, message: "Rate this App", preferredStyle: .actionSheet)
let appRateAction = UIAlertAction(title: "Rate", style: UIAlertActionStyle.default, handler: {action in SKStoreReviewController.requestReview()})
let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel, handler: nil)
rateMenu.addAction(appRateAction)
rateMenu.addAction(cancelAction)
self.present(rateMenu, animated: true, completion: nil)
})
// 5
return [shareAction,rateAction]
}
}
extension TableViewController {
/// This function will set all the required properties, and then provide a preview for the document
func share(url: URL) {
documentInteractionController.url = url
documentInteractionController.uti = url.typeIdentifier ?? "public.data, public.content"
documentInteractionController.name = url.localizedName ?? url.lastPathComponent
documentInteractionController.presentPreview(animated: true)
}
/// This function will store your document to some temporary URL and then provide sharing, copying, printing, saving options to the user
func storeAndShare(withURLString: String) {
guard let url = URL(string: withURLString) else { return }
/// START YOUR ACTIVITY INDICATOR HERE
URLSession.shared.dataTask(with: url) { data, response, error in
guard let data = data, error == nil else { return }
let fileManager = FileManager.default
do {
let documentDirectory = try fileManager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor:nil, create:false)
let fileURL = documentDirectory.appendingPathComponent("fileName.pdf")
try data.write(to: fileURL)
DispatchQueue.main.async {
self.share(url: fileURL)
}
} catch {
print(error)
}
}.resume()
}
}
extension TableViewController: UIDocumentInteractionControllerDelegate {
/// If presenting atop a navigation stack, provide the navigation controller in order to animate in a manner consistent with the rest of the platform
func documentInteractionControllerViewControllerForPreview(_ controller: UIDocumentInteractionController) -> UIViewController {
guard let navVC = self.navigationController else {
return self
}
return navVC
}
}
Example of download any pdf file and automatically save inside files folder of iPhone.
let urlString = "https://www.tutorialspoint.com/swift/swift_tutorial.pdf"
let url = URL(string: urlString)
let fileName = String((url!.lastPathComponent)) as NSString
//Mark: Create destination URL
let documentsUrl:URL = (FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first as URL?)!
let destinationFileUrl = documentsUrl.appendingPathComponent("\(fileName)")
//Mark: Create URL to the source file you want to download
let fileURL = URL(string: urlString)
let sessionConfig = URLSessionConfiguration.default
let session = URLSession(configuration: sessionConfig)
let request = URLRequest(url:fileURL!)
let task = session.downloadTask(with: request) { (tempLocalUrl, response, error) in
if let tempLocalUrl = tempLocalUrl, error == nil {
//Mark: Success
if let statusCode = (response as? HTTPURLResponse)?.statusCode {
print("Successfully downloaded. Status code: \(statusCode)")
}
do {
try FileManager.default.copyItem(at: tempLocalUrl, to: destinationFileUrl)
do {
//Mark: Show UIActivityViewController to save the downloaded file
let contents = try FileManager.default.contentsOfDirectory(at: documentsUrl, includingPropertiesForKeys: nil, options: .skipsHiddenFiles)
for indexx in 0..<contents.count {
if contents[indexx].lastPathComponent == destinationFileUrl.lastPathComponent {
let activityViewController = UIActivityViewController(activityItems: [contents[indexx]], applicationActivities: nil)
self.present(activityViewController, animated: true, completion: nil)
}
}
}
catch (let err) {
print("error: \(err)")
}
} catch (let writeError) {
print("Error creating a file \(destinationFileUrl) : \(writeError)")
}
} else {
print("Error took place while downloading a file. Error description: \(error?.localizedDescription ?? "")")
}
}
task.resume()
Step #1: Need to add permission in info.plist
<key>UIFileSharingEnabled</key>
<true/>
<key>LSSupportsOpeningDocumentsInPlace</key>
<true/>
Step #2: Download document from server url[any document]
func downloadPdf(sender:UIButton) {
DispatchQueue.main.async {
//Do UI Code here.
let pdfUrl = self.myOrderListModel?.myorderList?[sender.tag].invoiceUrl ?? ""
guard let fileURL = URL(string: pdfUrl) else { return }
var originalUrlStr : String = ""
print(fileURL.pathExtension)
if fileURL.pathExtension == ""{
originalUrlStr = pdfUrl + ".pdf"
} else {
originalUrlStr = pdfUrl
}
guard let originalUrl = URL(string: originalUrlStr) else { return }
let urlSession = URLSession(configuration: .default, delegate: self, delegateQueue: OperationQueue())
let downloadTask = urlSession.downloadTask(with: originalUrl)
downloadTask.resume()
}
}
extension InvoiceViewController: URLSessionDownloadDelegate {
func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {
print("File Downloaded Location- ", location)
guard let url = downloadTask.originalRequest?.url else {
return
}
let docsPath = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)[0]
let destinationPath = docsPath.appendingPathComponent(url.lastPathComponent)
try? FileManager.default.removeItem(at: destinationPath)
do{
try FileManager.default.copyItem(at: location, to: destinationPath)
print("File Downloaded Location- ", destinationPath)
DispatchQueue.main.async {
let urlString: String = destinationPath.absoluteString
self.saveInvoiceToDevice(filePath: urlString)
}
}catch let error {
print("Copy Error: \(error.localizedDescription)")
}
}
}
Step #3: Save downloaded file in Device "Files" Folder
func saveInvoiceToDevice(filePath : String) {
let fileURL = URL(string: filePath)
if FileManager.default.fileExists(atPath: fileURL!.path){
let url = URL(fileURLWithPath: fileURL!.path)
let activityViewController: UIActivityViewController = UIActivityViewController(activityItems: [url], applicationActivities: nil)
activityViewController.popoverPresentationController?.sourceView=self.view
//If user on iPad
if UIDevice.current.userInterfaceIdiom == .pad {
if activityViewController.responds(to: #selector(getter: UIViewController.popoverPresentationController)) {
}
}
self.present(activityViewController, animated: true, completion: nil)
}
else {
debugPrint("document was not found")
}
}
I have been trying to figure this out all day and yesterday night, but no luck. I can confirm that the LinkShareContent works but when I try to share a video file. It gives me an error code "reserved" but nothing else.
This is the code for the link
var content = LinkShareContent(url: URL(string: "https://google.com")!)
showShareDialog(content)
and this is the code for the video that does not work at all.
let video = Video(url: url)
var content = VideoShareContent(video: video, previewPhoto: Photo(image: inProgressItem.firstImage, userGenerated: true))
showShareDialog(content)
This will show the share Sheet on the controller
Func showShareDialog<C: ContentProtocol>(_ content: C, mode: ShareDialogMode = .shareSheet) {
let dialog = ShareDialog(content: content)
dialog.presentingViewController = self
dialog.mode = mode
do{
try dialog.show()
}
catch (let error){
print(error)
}
}
I have confirmed that the video is on the local path and I'm testing the app on iPhone 8 11.1.2
Had exactly the same issue. It was working for LinkShareContent but didn't work for VideoShareContent.
The solution:
Make sure you are getting the right URL for the video. The right one is the URL for key "UIImagePickerControllerReferenceURL" from info dictionary that comes from UIImagePickerController delegate method.
Working Code:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any]) {
picker.dismiss(animated: true)
if let videoURL = info["UIImagePickerControllerReferenceURL"] as? URL {
let video = Video(url: videoURL)
let content = VideoShareContent(video: video)
let dialog = ShareDialog(content: content)
dialog.failsOnInvalidData = true
dialog.mode = .native
dialog.presentingViewController = self
do {
try dialog.show()
} catch {
print(error)
}
}
}
Extra info: initially I did not use this key "UIImagePickerControllerReferenceURL" cuz it's deprecated. Apple advises using UIImagePickerControllerPHAsset instead. But the URL from there also returns reserved error. Another try was to use key "UIImagePickerControllerMediaURL", but it also didn't succeed.
I use PHPickerViewController instead of UIPickerController.
private lazy var videoPickerController: PHPickerViewController = {
let photoLibrary = PHPhotoLibrary.shared()
var configuration = PHPickerConfiguration(photoLibrary: photoLibrary)
configuration.selectionLimit = 1
configuration.filter = .any(of: [.videos])
let picker = PHPickerViewController(configuration: configuration)
picker.delegate = self
return picker
}()
Then using PHAsset for initialisation ShareVideo(videoAsset:).
private func facebookShare(content: Content) {
guard let schemaUrl = URL(string: "fb://") else {
return
}
if UIApplication.shared.canOpenURL(schemaUrl) {
let video = ShareVideo(videoAsset: content)
let content = ShareVideoContent()
content.video = video
let dialog = ShareDialog(
viewController: self,
content: content,
delegate: self
)
do {
try dialog.validate()
} catch let error as NSError {
presentAlert(message: (error.userInfo[ErrorDeveloperMessageKey] as? String) ?? error.localizedDescription)
} catch {
presentAlert(message: error.localizedDescription)
}
if dialog.canShow {
dialog.show()
}
} else {
presentAlert(message: "FB app not installed")
}
}
And PHPickerViewControllerDelegate looks something like this (I always select only 1 asset that's why I use fetchResult.firstObject)
func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
picker.dismiss(animated: true)
let identifiers = results.compactMap(\.assetIdentifier)
let fetchResult = PHAsset.fetchAssets(withLocalIdentifiers: identifiers, options: nil)
guard let videoAsset = fetchResult.firstObject else { return }
}
This solution works for iOS 14 and higher and if on your device Facebook app installed.
Also before upload video I login via FB.
I am trying to (1) download a piece of audio from a link, (2) add that newly-downloaded audio to an AVPlayer and (3) play it. Something is going wrong at step (3) and I'm looking for any guidance. Here's the code, including my alamofire and download functions, as I fear something may be going wrong at that stage.
import AVFoundation
class SettingAlarmViewController: UIViewController {
var player:AVPlayer!
override func viewDidLoad() {
super.viewDidLoad()
do {
try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
}
catch {
// report for an error
}
}
func getLatestPodcastURL(completion: #escaping (URL) -> ()) {
let RSSUrl: String = "https://www.npr.org/rss/podcast.php?id=510318"
Alamofire.request(RSSUrl).responseRSS() {response in
if let podcastURL: String = response.result.value?.items[0].enclosure!
{
let audioURL = URL(string: podcastURL)
completion(audioURL!)
}
else {
//error handling
}
}
}
func downloadSongAsynch(audioUrl: URL, completion: #escaping (URL) -> ()) {
let fileManager = FileManager.default
let documentsDirectoryURL = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first!.appendingPathComponent("podcasts/")
do {
try fileManager.createDirectory(atPath: documentsDirectoryURL.path,
withIntermediateDirectories: true, attributes: nil)
} catch {
//error handling
}
let destinationUrl = documentsDirectoryURL.appendingPathComponent(audioUrl.lastPathComponent)
URLSession.shared.downloadTask(with: audioUrl, completionHandler: { (location, response, error) -> Void in
guard let location = location, error == nil else { return }
do {
try FileManager.default.moveItem(at: location, to: destinationUrl)
} catch {
//error handling
}
}).resume()
completion(destinationUrl)
}
#IBAction func SetUpBotton(_ sender: Any) {
getLatestPodcastURL() {response in
//Uses an asynchronous call to Alamofire to get the podcast URL
self.downloadPodcastAsynch(audioUrl: response){response2 in
self.player = AVPlayer(url: response2)
print(self.player.currentItem)
}
#IBAction func PlayButton(_ sender: Any) {
player.play()
print(player.currentItem)
}
The log consistently shows my current item: >
But nothing plays. I have checked that the audio is working by trying to use the URL to stream this content. That works fine. I am getting the following:
BoringSSL errors "[BoringSSL] Function boringssl_session_errorlog: line 2871 [boringssl_session_read] SSL_ERROR_ZERO_RETURN(6): operation failed because the connection was cleanly shut down with a close_notify alert
but from what I've read, this is just a bug in the latest update and shouldn't be impacting the download. Any thoughts on this?
I am developing an App for the iPhone using Xwebview which enables me to download a page then interact with the javascript on the downloaded page.
All works, but if the internet connection drops, a default local page is loaded, informing the user there is no internet connection. The page displays a retry button that, when pressed checks, the internet connection: if the connection is made the app tries to connect again to the external page and load the page into the webview.
I cannot get this to work: the code downloads the page (I can see this in my session data) but I can't get that page to load back into the webview.
override func viewDidLoad() {
super.viewDidLoad()
login()
}
func login()
{
// *********** Get stored hashkey **************
let hashcode = getHashcode()
// ********** Check network connection *********
let netConnection = Connection.isConnectedToNetwork()
print("net connection: ", netConnection)
if netConnection == true
{
if hashcode != "00000"
{
print("local key found", hashcode)
// We dont have local key
let webview = WKWebView(frame: view.frame, configuration: WKWebViewConfiguration())
//webview.loadRequest(NSURLRequest(URL: NSURL(string: "about:blank")!))
view.addSubview(webview)
webview.loadPlugin(jsapi(), namespace: "jsapi")
let url:NSURL = NSURL(string: serverLocation + onlineLoginApi)!
let session = NSURLSession.sharedSession()
let request = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
request.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringCacheData
let paramString = "/?username=username&password=password"
request.HTTPBody = paramString.dataUsingEncoding(NSUTF8StringEncoding)
let task = session.downloadTaskWithRequest(request) {
(
let location, let response, let error) in
guard let _:NSURL = location, let _:NSURLResponse = response where error == nil else {
print("error")
return
}
let urlContents = try! NSString(contentsOfURL: location!, encoding: NSUTF8StringEncoding)
guard let _:NSString = urlContents else {
print("error")
return
}
print(urlContents)
}
task.resume()
// you must tell webview to load response
webview.loadRequest(request)
}
else{
print("local key found", hashcode)
// ********* Found local key go to site pass key over ************
let webview = WKWebView(frame: view.frame, configuration: WKWebViewConfiguration())
view.addSubview(webview)
webview.loadPlugin(jsapi(), namespace: "jsapi")
let req = NSMutableURLRequest(URL: NSURL(string:serverLocation + onlineLoginApi + "?hashcode=\(hashcode)")!)
req.HTTPMethod = "POST"
req.HTTPBody = "/?hashcode=\(hashcode)".dataUsingEncoding(NSUTF8StringEncoding)
NSURLSession.sharedSession().dataTaskWithRequest(req)
{ data, response, error in
if error != nil
{
//Your HTTP request failed.
print(error!.localizedDescription)
} else {
//Your HTTP request succeeded
print(String(data: data!, encoding: NSUTF8StringEncoding))
}
}.resume()
webview.loadRequest(req)
}
}
else{
// No connection to internet
let webview = WKWebView(frame: view.frame, configuration: WKWebViewConfiguration())
view.addSubview(webview)
webview.loadPlugin(jsapi(), namespace: "jsapi")
let root = NSBundle.mainBundle().resourceURL!
let url = root.URLByAppendingPathComponent("/www/error-no-connection.html")
webview.loadFileURL(url, allowingReadAccessToURL: root)
print("No internet connection")
}
}
class jsapi: NSObject {
// Reconnect button on interface
func retryConnection()
{
print("Reconnect clicked")
dispatch_async(dispatch_get_main_queue())
{
let netConnections = Connection.isConnectedToNetwork()
if netConnections == true {
let netalert = UIAlertView(title: "Internet on line", message: nil, delegate: nil, cancelButtonTitle: "OK")
netalert.show()
let url = self.serverLocation + self.onlineLoginApi
let hashcode = ViewController().getHashcode()
if(hashcode != "00000") {
let url = url + "?hashcode=\(hashcode)"
print("url: ", url)
}
ViewController().loadPagelive(url)
}
else{
let netalert = UIAlertView(title: "Internet off line", message: nil, delegate: nil, cancelButtonTitle: "OK")
netalert.show()
}
}
print("retryConnect end")
}
}
You try to perform the loadPagelive(url) on a new instance of your ViewController, not on the current one shown on the screen, that's why you don't see any update.
You should create a delegate or a completion block in order to execute code on you ViewController instance loaded on the screen: every time you do ViewController(), a new object is created.
You can try using the delegate pattern, which is simple to achieve. I will try to focus on the important part and create something that can be used with your existing code:
class ViewController: UIViewController {
let jsapi = jsapi() // You can use only 1 instance
override func viewDidLoad() {
super.viewDidLoad()
// Set your ViewController as a delegate, so the jsapi can update it
jsapi.viewController = self
login()
}
func loadPagelive(_ url: URL) {
// Load page, probably you already have it
}
}
class jsapi: NSObject {
weak var viewController: ViewController?
func retryConnection() {
// We check if the delegate is set, otherwise it won't work
guard viewController = viewController else {
print("Error: delegate not available")
}
[... your code ...]
// We call the original (and hopefully unique) instance of ViewController
viewController.loadPagelive(url)
}
}