How to get the height of a UILabel in Swift?

Question

I am a beginner in Swift and I am trying to get the height of a label. The label has multiple lines of text. I want to know the total height it occupies on the screen.

Answer 1

Swift 5 ioS 13.2 tested 100%, best solution when the UILabel numberOfLines = 0

Note, result is rounded. Just remove ceil() if you don't want it.

If you want to get height -> give storyboard width of UILabel

If you want to get width -> give storyboard height of UILabel

    let stringValue = ""//your label text
    let width:CGFloat = 0//storybord width of UILabel
    let height:CGFloat = 0//storyboard height of UILabel
    let font = UIFont(name: "HelveticaNeue-Bold", size: 18)//font type and size

    func getLableHeightRuntime() -> CGFloat {
        let constraintRect = CGSize(width: width, height: .greatestFiniteMagnitude)
        let boundingBox = stringValue.boundingRect(with: constraintRect, options: .usesLineFragmentOrigin, attributes: [NSAttributedString.Key.font: font], context: nil)
        return ceil(boundingBox.height)
    }

    func getLabelWidthRuntime() -> CGFloat {
        let constraintRect = CGSize(width: .greatestFiniteMagnitude, height: height)
        let boundingBox = stringValue.boundingRect(with: constraintRect, options: .usesLineFragmentOrigin, attributes: [NSAttributedString.Key.font: font], context: nil)
        return ceil(boundingBox.width)
    }