[英]Change a SF Symbol size inside a UIButton
我正在声明一个这样的按钮:
let menuButton = UIButton()
之后,我尝试更改它的参数并在 LBTATools(一个 pod)的帮助下使用此功能设置他在视图上的位置:
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
}
一切运行良好,我得到了正确的颜色、位置甚至尺寸。 唯一的问题是它的大小,我不能用所有常用的方法来改变它,比如menuButton.imageView?.contentMode = .scaleAspectFit
等。
可能是因为它是 SF Symbol 而不是普通图像。
某人的帮助将不胜感激。
谢谢
目标 C:
UIImageSymbolConfiguration * configuration = [UIImageSymbolConfiguration configurationWithPointSize:30 weight:UIImageSymbolWeightBold scale:UIImageSymbolScaleLarge];
UIImage * image = [UIImage systemImageNamed:@"" withConfiguration:configuration];
[_btn setImage:image forState:UIControlStateNormal];
iOS 15 和 Swift 5 解决方案是:
var config = UIButton.Configuration.plain() // Change style with e.g. `.filled()`
config.title = "Title of the UIButton"
config.image = UIImage(systemName: "line.horizontal.3.decrease.circle.fill",
withConfiguration: UIImage.SymbolConfiguration(scale: .small)) // Change the scale here
config.imagePadding = 4 // Padding between image and title
let menuButton = UIButton()
menuButton.configuration = config
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