How to change line spacing for text in UILabel swift

Question

I have looked at solutions on stack and they have not helped me. The following is my attempt to change the line spacing for the text in my UILabel. Please can someone advise. I see no effect on my line spacing.

 let myText = abstractText.text!
 let myParagraphStyle = NSMutableParagraphStyle()
 myParagraphStyle.lineSpacing = 5

 let myNsAttrStringObject = NSAttributedString.init(string: myText, attributes: ["paragraphStyle":myParagraphStyle])
 abstractText.attributedText = myNsAttrStringObject

Answer 1

您的属性键以这种方式不正确，您可以使用objective-c键NSParagraphStyleAttributeName或swift 4键NSAttributedStringKey.paragraphStyle ：

let myNsAttrStringObject = NSAttributedString.init(string: myText, attributes: [NSParagraphStyleAttributeName: myParagraphStyle])