Change a SF Symbol size inside a UIButton

Question

I am declaring a Button like this :

let menuButton = UIButton()

After that I am trying to change it's parameter and set his position on the view with the help of LBTATools (a pod) with this function:

fileprivate func setMenuButtonUI() {
        menuButton.setImage(UIImage(systemName: "line.horizontal.3.decrease.circle.fill"), for: .normal)
        view.addSubview(menuButton)
        menuButton.anchor(top: view.safeAreaLayoutGuide.topAnchor, leading: view.leadingAnchor, bottom: nil, trailing: nil, padding: .init(top: 20, left: 60, bottom: 0, right: 0), size: .init(width: 40, height: 40))
        menuButton.setupShadow(opacity: 1, radius: 5, offset: .zero, color: .darkGray)
        menuButton.tintColor = .red
    }

Everything is working well, I get the right color, position and even size. Only problem is it's size, I cannot change it with all the usual methods like menuButton.imageView?.contentMode = .scaleAspectFit etc..

Probably it comes from the fact that it is a SF Symbol and not a normal image.

The help of someone would be really appreciated.

Thanks

Answer 1

You can do it using SymbolConfiguration like in the sample code below:

let largeConfig = UIImage.SymbolConfiguration(pointSize: 140, weight: .bold, scale: .large)
       
let largeBoldDoc = UIImage(systemName: "doc.circle.fill", withConfiguration: largeConfig)

button.setImage(largeBoldDoc, for: .normal)