My code allows you to upload an image while it is showing the upload progress, each time I press the "Upload" button.
Every time I press it, the progress starts at 0% until it ends at 100%.
The problem is if I press the "Cancel" button, it cancels the upload of the image, but when I try to upload another image, it uploads it correctly but it does not calculate the progress.
class UploadImage{
private var task: URLSessionDataTask?
private var progressTask: Task<AnyObject, Error>?
public func uploadImage() {
self.task = nil
self.task = URLSession.shared.dataTask(with: request) { data, response, error in
if let data = data {
print(String(data: data, encoding: .utf8)!)
}
else {
print(String(describing: error))
return
}
}
self.task?.resume()
}
public func cancelUpload(){
//self.progressTask!.cancel()
self.task?.cancel()
}
public func uploadAllFiles() {
self.progressTask = Task.detached{
var task2: URLSessionDataTask?
while(self.state == 0){
if(self.task != nil){
task2 = self.task
if(task2!.countOfBytesSent != 0){
//This is the progress
print(round((Double(100.0)/Double(task2!.countOfBytesExpectedToSend)) * Double(task2!.countOfBytesSent)*100)/100)
}
}
}
return 0 as AnyObject
}
self.uploadImage()
}
}
My view in swiftUI
private var upload
var body: some View {
Button(action: {
upload = Upload()
Task.detached{
upload.uploadAllFiles()
}
}) {
Text("Upload")
}
Button(action: {
upload.cancelUpload()
}) {
Text("Cancel")
}
}
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