更改 UIButton 内的 SF 符号大小 [英] Change a SF Symbol size inside a UIButton

问题描述

我正在声明一个这样的按钮:

I am declaring a Button like this :

let menuButton = UIButton()

在那之后，我尝试更改它的参数并在具有此功能的 LBTATools(一个 pod)的帮助下设置他在视图上的位置:

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
    }

一切正常，我得到了正确的颜色、位置和大小.唯一的问题是它的大小，我不能用所有常用的方法改变它，比如 menuButton.imageView?.contentMode = .scaleAspectFit 等.

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..

可能是因为它是SF符号而不是普通图像.

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

非常感谢某人的帮助.

谢谢

推荐答案

您可以使用 SymbolConfiguration 来完成，就像下面的示例代码一样:

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)

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