How to Increase Line spacing in UILabel in Swift 4

Question

I want to increase the Line Spacing in UILabel but I can't figure it out how.

I found this solution [https://stackoverflow.com/a/39158698/8633963] on Stackoverflow but my Xcode always displays this:

Use of unresolved identifier 'NSParagraphStyleAttributeName'

I think the answer is right but it did not work for me. Can anyone help with this problem?

The answer is there in mentioned SO link. Did you look at others' answer? https://stackoverflow.com/a/39158698/8633963 Opinion. Instead of defining programmatically, better to do the same from Interface builder. — Mani, Apr 21 '18 at 09:42

Dzhek · Answer 1 · 2021-12-14T08:52:03.893

Swift 5

import UIKit

extension UILabel {
    
    func setLineHeight(lineHeight: CGFloat) {
        guard let text = self.text else { return }
        
        let attributeString = NSMutableAttributedString(string: text)
        let style = NSMutableParagraphStyle()
        
        style.lineSpacing = lineHeight
        attributeString.addAttribute(
            NSAttributedString.Key.paragraphStyle,
            value: style,
            range: NSMakeRange(0, attributeString.length))
        
        self.attributedText = attributeString
    }

}

score 3 · Accepted Answer · answered Apr 21 '18 at 09:32

3

In Swift 4 in this case you have to use NSAttributedStringKey.paragraphStyle instead of NSParagraphStyleAttributeName

answered Apr 21 '18 at 09:32

schmidt9

4,436
1
26
32

score 1 · Answer 3 · answered Nov 20 '19 at 18:21

This worked for me.

import UIKit

    extension UILabel {

        func setLineHeight(lineHeight: CGFloat) {
            let text = self.text
            if let text = text {
                let attributeString = NSMutableAttributedString(string: text)
                let style = NSMutableParagraphStyle()

                style.lineSpacing = lineHeight
                attributeString.addAttribute(NSParagraphStyleAttributeName, value: style, range: NSMakeRange(0, count(text)))
                self.attributedText = attributeString
            }
        }
    }

score -2 · Answer 4 · answered Jan 07 '19 at 21:01

Check out this ridiculously simple solution that works!

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! CommentTVCCell

    // Configure the cell...


    cell.myLabel?.text = "\n[\(indexPath.row + 1)]\n\n" + itemArray[indexPath.row].name

    //

    return cell 
}

//Notice the use of the \n to load a return or as many as you wish. Make sure they are within a string designation.

I'm gonna go out on a limb to say OP didn't want a solution using a TableView — Chucky, Jun 14 '21 at 16:30

How to Increase Line spacing in UILabel in Swift 4

4 Answers4