How to change font of UIButton with Swift

235
votes

I am trying to change the font of a UIButton using Swift...

myButton.font = UIFont(name: "...", 10)

However .font is deprecated and I'm not sure how to change the font otherwise.

Any suggestions?

16
iosuibuttonswiftuifont

16 Answers

489
votes

Use titleLabel instead. The font property is deprecated in iOS 3.0. It also does not work in Objective-C. titleLabel is label used for showing title on UIButton.

myButton.titleLabel?.font =  UIFont(name: YourfontName, size: 20)

However, while setting title text you should only use setTitle:forControlState:. Do not use titleLabel to set any text for title directly.

73
votes

For Swift 3.0:

button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 16)

where "boldSystemFont" and "16" can be replaced with your custom font and size.

53
votes

Dot-notation is awesome 👌

btn.titleLabel?.font = .systemFont(ofSize: 12)
9
votes

You don't need to force unwrap the titleLabel to set it.

myButton.titleLabel?.font = UIFont(name: YourfontName, size: 20)

Since you're not using the titleLabel here, you can just optionally use it and if it's nil it will just be a no-op.

I'll also add as other people are saying, the font property is deprecated, and make sure to use setTitle:forControlState: when setting the title text.

7
votes

From the documentation:

The font used to display text on the button. (Deprecated in iOS 3.0. Use the font property of the titleLabel instead.)

6
votes

If you're having font size issues (your font isn't responding to size changes)...

@codester has the right code:

myButton.titleLabel!.font =  UIFont(name: YourfontName, size: 20)

However, my font size wasn't changing. It turns out that I asking for a font that didn't exist ("HelveticaNeue-Regular"). It wasn't causing a crash, but seemed to be just ignoring that font statement because of it. Once I changed the font to something that does exist, changes to "size: x" did render.

6
votes

In Swift 5, you can utilize dot notation for a bit quicker syntax:

myButton.titleLabel?.font = .systemFont(ofSize: 14, weight: .medium)

Otherwise, you'll use:

myButton.titleLabel?.font = UIFont.systemFont(ofSize: 14, weight: .medium)

5
votes

we can use different types of system fonts like below 

myButton.titleLabel?.font = UIFont.boldSystemFont(ofSize: 17)
myButton.titleLabel?.font = UIFont.italicSystemFont(ofSize:UIFont.smallSystemFontSize)
myButton.titleLabel?.font = UIFont.boldSystemFont(ofSize: UIFont.buttonFontSize)

and your custom font like below 

    myButton.titleLabel?.font = UIFont(name: "Helvetica", size:12)
4
votes

You should go through the titleLabel property.

button.titleLabel.font

The font property has been deprecated since iOS 3.0.

4
votes

Take a look here.

You should set the font of the button's titleLabel instead.

myButton.titleLabel!.font = UIFont(name: "...", 10)
4
votes

This works in Swift 3.0:

btn.titleLabel?.font = UIFont(name:"Times New Roman", size: 20)
4
votes

If you need to change only size (Swift 4.0):

button.titleLabel?.font = button.titleLabel?.font.withSize(12)
3
votes

If you are setting AttributedString to the UIButton then you can do the below thing.

let attributedText = NSAttributedString(string: "Hello", attributes: [NSAttributedStringKey.font: UIFont(name: "Calibri", size: 19)])
okayButton.setAttributedTitle(attributedText, for: .normal)
2
votes

Example: button.titleLabel?.font = UIFont(name: "HelveticaNeue-Bold", size: 12)

  • If you want to use defaul font from it's own family, use for example: "HelveticaNeue"
  • If you want to specify family font, use for example: "HelveticaNeue-Bold"
1
votes

This way doesn't work now: 

 btn.titleLabel?.font = UIFont(name: "Helvetica", size:12)

This works:

 btn.titleLabel?.font = UIFont.init(name: "Helvetica", size:12)
0
votes

this work for me, thanks. I want change text size only not change font name.

var fontSizeButtonBig:Int = 30

btnMenu9.titleLabel?.font = .systemFont(ofSize: CGFloat(fontSizeButtonBig))