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iosswiftxcodecocoa-touchuilabel

How do I change the font size of a UILabel in Swift?

label.font.pointSize is read-only, so I'm not sure how to change it.

Solution

  • You can do it like this:

    label.font = UIFont(name: label.font.fontName, size: 20)

    Or like this:

    label.font = label.font.withSize(20)

    This will use the same font. 20 can be whatever size you want of course.

    Note: The latter option will overwrite the current font weight to regular so if you want to preserve the font weight use the first option.

    Swift 3 Update:

    label.font = label.font.withSize(20)

    Swift 4 Update:

    label.font = label.font.withSize(20)

    or

    label.font = UIFont(name:"fontname", size: 20.0)

    and if you use the system fonts

    label.font = UIFont.systemFont(ofSize: 20.0)
label.font = UIFont.boldSystemFont(ofSize: 20.0)
label.font = UIFont.italicSystemFont(ofSize: 20.0)