ios - Can we change Font, Size for all Label by single code / file?

Question

I would like to ask, have any ways to change all Font, Size for Label by single code? Like Dynamic Type inside the app. ex: Android have been supported with the XML file (dimens)

Thank you!

Answer 1

There are a few ways to achieve that

1. You can do something like this to give the same styling for all UILabels:

extension UILabel {
    @nonobjc
    convenience init() {
        self.init(frame: .zero)
        self.font = UIFont.systemFont(ofSize: 12, weight: UIFontWeightThin)
        //... here goes other changes
    }
}

You will need to use a convenience init every time.

2. Another option would be to create some custom UILabel:

class CustomLabel: UILabel {
    override init(frame: CGRect) {
        super.init(frame: frame)
        self.font = UIFont.systemFont(ofSize: 12, weight: UIFontWeightThin)
        //... here goes other changes
    }

    required init?(coder: NSCoder) {
        super.init(coder: coder)
        self.font = UIFont.systemFont(ofSize: 12, weight: UIFontWeightThin)
        //... here goes other changes
    }
}

3. The last option is relatively more complex and will require you to create customised way of handling different stylings for UILabel.