How to update font family of complete ios app globally

Asked Nov 29 '17 at 12:19

Active Dec 07 '17 at 06:42

Viewed 590 times

I am working on an app and it very painful and time consuming to update font family for each label and other text elements used in xcode.

Is there any way we can update the font family of all label, text fields etc globally without changing the font-size.

I used this code in swift 3 and worked perfectly

Set a default font for whole iOS app?

extension UILabel {

    var substituteFontName : String {
        get { return self.font.fontName }
        set { self.font = UIFont(name: newValue, size: self.font.pointSize) }
    }
}

but in swift 4 it shows this error

Fatal error: Unexpectedly found nil while unwrapping an Optional value on line

set { self.font = UIFont(name: newValue, size: self.font.pointSize) }

Thanks

edited Dec 07 '17 at 06:42

asked Nov 29 '17 at 12:19

Nabeel

Possible duplicate of [Set a default font for whole iOS app?](https://stackoverflow.com/questions/8707082/set-a-default-font-for-whole-ios-app) – Code Different Dec 05 '17 at 22:52
This solution is no longer working in Swift 4 – Nabeel Dec 06 '17 at 11:13
Describe "not working" – Code Different Dec 06 '17 at 16:00
https://stackoverflow.com/questions/8707082/set-a-default-font-for-whole-ios-app#answer-28440649 – Nabeel Dec 07 '17 at 06:33
This answer suits my requirement. I tried it in swift 3 and it worked fine. Once i upgraded to swift 4 it shows error. – Nabeel Dec 07 '17 at 06:38
I have just updated my question for this. – Nabeel Dec 07 '17 at 06:42

How to update font family of complete ios app globally

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