How to make a Progress View in a TableView? - swift

Question

I'm trying to make a Progress View on a TableView.
I succeeeded to create progressview, but if animation is true bar disappears, and if is false bar is full... i can't understand why.
This is my code:
here is my appending method:
if formazione == formazione {
guestInfoList.append("Formazione: \(formazione)%")
}
and here the full dequeue function:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var countdowncell = tableView.dequeueReusableCell(withIdentifier: "countdowncell", for: indexPath)
//countdown
if indexPath.row == 9{
countdowncell.textLabel?.text = calcolaCountdown()
}else{
countdowncell.textLabel?.text = guestInfoList[indexPath.row]
}
//Creazione Progress View
if indexPath.row == 12 {
cell = UITableViewCell(style: .default, reuseIdentifier: "Cell")
let progressView = UIProgressView(progressViewStyle: .default)
//setting height of progressView
let transform = CGAffineTransform(scaleX: cell.frame.size.width, y: cell.frame.size.height)
progressView.transform = transform
cell.contentView.addSubview(progressView)
//**//inserisci valore formazione
progressView.setProgress(Float(formazione), animated: false)
}
return countdowncell
}
Ps: and if i want to put the progress View on the right Side of the cell?
Edit
Finally i made it! Thank you matt!!
if indexPath.row == 12 {
var cell = tableView.dequeueReusableCell(withIdentifier: "formprogresscell", for: indexPath)
let progressView = UIProgressView(progressViewStyle: .default)
//setting height of progressView
progressView.frame = CGRect(x: 230, y: 20, width: 130, height: 130)
progressView.progress += 0.5
progressView.rightAnchor.accessibilityActivate()
//**//inserisci valore formazione
progressView.setProgress(Float(formazione), animated: true)
progressView.progressTintColor = UIColor.red
cell.textLabel?.text = "Formazione: \(formvalue)%"
cell.contentView.addSubview(progressView)
}

Answer 1

The problem is what you do with the progress view after creating it:
let progressView = UIProgressView(progressViewStyle: .default)
You are failing to give the progressView any frame. Therefore it doesn't have one. In particular, it has no width. Therefore it is invisible.
Giving it a frame will solve both your problems: you'll give the view a width, and you'll give it an origin so you can put it where you want inside the content view. (But in fact you should be using autolayout, not the frame.)