How to add spacing to lines in NSAttributedString How to add spacing to lines in NSAttributedString ios ios

How to add spacing to lines in NSAttributedString

The following sample code uses paragraph style to adjust spacing between paragraphs of a text.

UIFont *font = [UIFont fontWithName:fontName size:fontSize];NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];paragraphStyle.paragraphSpacing = 0.25 * font.lineHeight;NSDictionary *attributes = @{NSFontAttributeName:font,                             NSForegroundColorAttributeName:[UIColor whiteColor],                             NSBackgroundColorAttributeName:[UIColor clearColor],                             NSParagraphStyleAttributeName:paragraphStyle,                            };NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] initWithString:text attributes:attributes];

To selectively adjust spacing for certain paragraphs, apply the paragraph style to only those paragraphs.

Hope this helps.

Great answer @Joe Smith

In case anyone would like to see what this looks like in Swift 2.*:

    let font = UIFont(name: String, size: CGFloat)    let paragraphStyle = NSMutableParagraphStyle()    paragraphStyle.paragraphSpacing = 0.25 * font.lineHeight    let attributes = [NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle]    let attributedText = NSAttributedString(string: String, attributes: attributes)    self.textView.attributedText = attributedText

Here is Swift 4.* version:

let string =    """    A multiline    string here    """let font = UIFont(name: "Avenir-Roman", size: 17.0)let paragraphStyle = NSMutableParagraphStyle()paragraphStyle.paragraphSpacing = 0.25 * (font?.lineHeight)!let attributes = [NSAttributedStringKey.font: font as Any, NSAttributedStringKey.paragraphStyle: paragraphStyle]let attrText = NSAttributedString(string: string, attributes: attributes)self.textView.attributedText = attrText