Uifont' Is Not Convertible to 'Uifont'

UIFont' is not convertible to 'UIFont?'

Elsewhere on SO, someone suggest that where you have this:

aTitleView.font = UIFont(name: "Roboto-Regular", size: 15)

...you should try writing this:

aTitleView.font = UIFont.init(name: "Roboto-Regular", size: 15)

I can take no credit for this (because I can't reproduce the bug) so I'm just guessing! But it would be very interesting to know if it actually works.

UIFont is not convertible error

placeholder.font = UIFont(name: "Avenir-Light", size: 15.0)

you should try writing this:

placeholder.font = UIFont.init(name: "Avenir-Light", size: 15)

for more information see this

How to convert CGFontRef to UIFont?

Conrad's answer is close but doesn't quite work. You need to provide UIFont with the PostScript name, rather than the full name.

NSString *fontName = (NSString *)CGFontCopyPostScriptName(fontRef);
UIFont *font = [UIFont fontWithName:fontName size:someSize]

Convert CATextLayer font to UIFont

I just wrote the following extension which should handle: CTFont, CGFont, string name or UIFont:

extension CATextLayer {
    public var typeFace:UIFont? {
        let name:String
        switch font {
        case let ctFont as CTFont :
            // If you assign a UIFont to CATextLayer.font
            // it is implicitly converted to CTFont,
            // so this case will be called.
            guard let _name = CTFontCopyName(ctFont, kCTFontPostScriptNameKey) else {
                return nil
            }
            name = _name as NSString as String
        case let cgFont as CGFont :
            guard let _name = cgFont.postScriptName else {
                return nil
            }
            name = _name as NSString as String
        case let string as NSString :
            name = string as String
        case let string as String :
            name = string
        default:
            return nil
        }
        return UIFont(name:name, size:fontSize)
    }
}

On a side note, I found this comment in docs inaccurate:

In iOS, you cannot assign a UIFont object to this property.

From my tests I was able to set a UIFont on CATextLayer.font and it appears to work fine.

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EDIT

It turns out when you assign a UIFont to CATextLayer.font it is converted to a CTFont behind the scenes, so in order to get the UIFont back out it's necessary to convert from CTFont to UIFont (which my code does). Simply casting to UIFont would not work.

SwiftUI/UIKit How to convert SwiftUI Font to UIKit UIFont?

If you need share same font, then use UIFont as model property and convert in SwiftUI where needed as, for example

Text("Some text")
   .font(Font(uiFont as CTFont))

iPhone - Convert CTFont to UIFont?

CTFontRef ctFont = ...;
NSString *fontName = [(NSString *)CTFontCopyName(ctFont, kCTFontPostScriptNameKey) autorelease];
CGFloat fontSize = CTFontGetSize(ctFont);
UIFont *font = [UIFont fontWithName:fontName size:fontSize];

Color and underline are not attributes of the font. Bold and italic are part of the font name.

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