adjustsFontForContentSizeCategory in UILabel with attributed text

Question

I thought I would save others hours of debugging and say that setting adjustsFontForContentSizeCategory to true has no affect on labels you set the attributedText value of (at least in tableview cell labels).

Luckily the solution is to set the font on the attributed string yourself. I wrote a small utility extension:

public extension NSMutableAttributedString {
    public func setFont(_ font: UIFont) -> NSMutableAttributedString {
        addAttribute(NSAttributedStringKey.font, value: font, range: NSRange(location: 0, length: string.count))

        return self
    }
}

Where you set the attributedText property you would call

@IBOutlet weak var myLabel: UILabel!

var myAttributedString: NSAttributedString = .....

myLabel.attributedText = NSMutableAttributedString(attributedString: myAttributedString).setFont(myLabel.font)

Thanks, Please answer your own question and accept it. – adev Dec 12 '18 at 20:19 — adev, Dec 12 '18 at 20:19

score 0 · Accepted Answer · answered Dec 13 '18 at 21:23

0

public extension NSMutableAttributedString {
public func setFont(_ font: UIFont) -> NSMutableAttributedString {
    addAttribute(NSAttributedStringKey.font, value: font, range: NSRange(location: 0, length: string.count))

    return self
}

}

answered Dec 13 '18 at 21:23

GilroyKilroy

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adjustsFontForContentSizeCategory in UILabel with attributed text

1 Answers1