Aligning multiple runtime generated UILabels in a UITableView - ios

Question

I have a UITableView that needs to support content by listing style something like
But the tricky part is that the amount of "Label" will vary with each cell, some may have only 4 but also up to 12. Also the "Value" can be either a single word or short phrase up to two lines(like in the image above). So I decided to use UIStackView to help me pack and size my UILabels used to display this. I am currently stuck at a problem when the "Label" varies in length like:
I need the leading end of the "Values" to be aligned like the first image even though the "Label" vary in length. Is there a behaviour of UIStackView that allows so? Or is there another approach that can allow me to obtain the results I need?
Note: Each "Label" and "Value" is in one UIStackView, I did it to align them.
I tried using String Formatting too, but "Values" with more than one line will wrap under the label instead of wrapping by itself like I manage to do in the images.
I tried placing all "Labels" in one UIStackView and all "Values" in another, I could no get them to align like they do in the images once the "Value" is more than one line.
Or if it might be a mistake I made somewhere, this is how I created the UIStackViews:
var higherCount = 0
if labels.count<values.count {
higherCount = values.count
} else {
higherCount = labels.count
}
mainStackView = UIStackView(frame: CGRect(x: 0, y: 0, width: frame.width, height: frame.height))
for i in 0..<higherCount {
var height:CGFloat = 20
if (values[i] as NSString).size(attributes: [NSFontAttributeName:UIFont.systemFont(ofSize: UIFont.systemFontSize)]).width > frame.width {
height = 42
}
let stackViewToAdd = UIStackView(frame: CGRect(x: 0, y: 0, width: frame.width, height: height))
let label = UILabel(frame: CGRect(x: 0, y: 0, width: frame.width, height: height))
if labels.count<higherCount {
label.text = ""
} else {
label.text = labels[i]
}
label.setContentCompressionResistancePriority(1000, for: .horizontal)
label.setContentHuggingPriority(999, for: .horizontal)
stackViewToAdd.addArrangedSubview(label)
let value = UILabel(frame: CGRect(x: 0, y: 0, width: frame.width, height: height))
if values.count<higherCount {
value.text = ""
} else {
value.text = values[i]
}
value.lineBreakMode = .byWordWrapping
value.numberOfLines = 2
stackViewToAdd.addArrangedSubview(value)
mainStackView?.addArrangedSubview(stackViewToAdd)
}
mainStackView?.alignment = .fill
mainStackView?.axis = .vertical
mainStackView?.distribution = .fill

Answer 1

I you created your cell programmatically, then you can resize the cell programmatically depends on the size of UILabel Content.
In my case Label font is UIFont.systemFont(ofSize: 15), minimum TableViewCell height is 50, arrLabel1 and arrLabel2 will be the content of Labels.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrLable1.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: .default, reuseIdentifier: "\(indexPath.row)")
let lable1 = UILabel(frame: CGRect(x: 10, y: 10, width: view.frame.size.width - 20, height: 0))
lable1.numberOfLines = 0
lable1.font = UIFont.systemFont(ofSize: 15)
lable1.text = arrLable1[indexPath.row]
lable1.sizeToFit()
cell.addSubview(lable1)
let lable2 = UILabel(frame: CGRect(x: 10, y: lable1.frame.origin.y + lable1.frame.size.height + 10 , width: view.frame.size.width - 20, height: 0))
lable2.numberOfLines = 0
lable2.font = UIFont.systemFont(ofSize: 15)
lable2.text = arrLable2[indexPath.row]
lable2.sizeToFit()
cell.addSubview(lable2)
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath)
-> CGFloat {
let boundingRect1 = arrLable1[indexPath.row].boundingRect(with: CGSize(width: view.frame.size.width - 40 , height: CGFloat(MAXFLOAT)), options: NSStringDrawingOptions.usesLineFragmentOrigin,attributes:[ NSFontAttributeName : UIFont.systemFont(ofSize: 15)] ,context: nil)
let boundingRect2 = arrLable2[indexPath.row].boundingRect(with: CGSize(width: view.frame.size.width - 40 , height: CGFloat(MAXFLOAT)), options: NSStringDrawingOptions.usesLineFragmentOrigin,attributes:[ NSFontAttributeName : UIFont.systemFont(ofSize: 15)] ,context: nil)
guard boundingRect1.height + boundingRect2.height + 30 > 50 else {
return 50
}
return boundingRect1.height + boundingRect2.height + 30
}
Set Label numberOfLines to 0