I'm trying to set the font of the UIBarButtonItem
like so:
let barButton = UIBarButtonItem.appearance()
barButton.setTitleTextAttributes([NSFontAttributeName: UIFont(name: "AvenirNext", size: 15], forState: UIControlState.Normal)
But it throws a compiler error saying:
Cannot invoke 'init' with an argument list type '($T7, forState: UIControlState)`
and I have no idea what that means. I have also tried
barButton.titleTextAttributesForState(UIControlState.Normal) =[NSFontAttributeName...]`
but it appears that it isn't assignable
How can I resolve this?
The initializer of UIFont
returns an optional because it may fail due to misspelled font name etc.
You have to unwrap it and check:
if let font = UIFont(name: "AvenirNext", size: 15) {
barButton.setTitleTextAttributes([NSFontAttributeName: font], forState: UIControlState.Normal)
}
UPDATED for Swift 3
if let font = UIFont(name: "AvenirNext", size: 15) {
barButton.setTitleTextAttributes([NSFontAttributeName:font], for: .normal)
}
Setting Custom font is little bit tricky, since they don't have font
and title
properties. Hope this following answer will help you.
let font = UIFont(name: "<your_custom_font_name>", size: <font_size>)
var leftBarButtonItem = UIBarButtonItem(title: "<font_hex_code>", style: UIBarButtonStyle.Plain, target: self, action: "buttonClicked:")
leftBarButtonItem.setTitleTextAttributes([NSFontAttributeName:font!], forState: UIControlState.Normal)
self.navigationItem.leftBarButtonItem = leftBarButtonItem
if let font : UIFont = UIFont(name: "Roboto-Regular", size: 15)
{
cancelBarButton.setTitleTextAttributes([NSFontAttributeName: font], forState: UIControlState.Normal)
doneBarButton.setTitleTextAttributes([NSFontAttributeName: font], forState: UIControlState.Normal)
}
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