How to give dynamic height to UILabel programmatically in Swift?

Question

I have taken UIlabel which are generated dynamically using for loop, each type diff text is assign in label, I want to give UILabel size dynamically depending on text.

Answer 1

The Swift 4.1 extension method to calculate label height:

extension UILabel {

    func heightForLabel(text:String, font:UIFont, width:CGFloat) -> CGFloat {
        let label:UILabel = UILabel(frame: CGRect(x: 0, y: 0, width: width, height: CGFloat.greatestFiniteMagnitude))
        label.numberOfLines = 0
        label.lineBreakMode = NSLineBreakMode.byWordWrapping
        label.font = font
        label.text = text

        label.sizeToFit()
        return label.frame.height
    }

}

Refer: Adjust UILabel height to text