UIButton/配置 titleAlignment = .leading 和 imagePlacement = .trailing 不受尊重

Question

        var configuration = UIButton.Configuration.bordered()
        configuration.image = ImageProvider.icon.history
        configuration.imagePlacement = .trailing
        historyButton.configuration = configuration
        configuration.titleAlignment = .leading
        historyButton.setTitle(String(localized: "History"), for: .normal)
        let image = ImageProvider.icon.history
        historyButton.setImage(image, for: .normal)

如何将标题固定在按钮的前缘，将图像固定在后缘？谢谢！

将对齐方式更改为前导会将标题和图像移动到前缘。

Answer 1

关键是将按钮的

.contentHorizontalAlignment

设置为

.fill

...

var configuration = UIButton.Configuration.bordered()
configuration.image = UIImage(systemName: "gobackward.15")
configuration.title = "History"
configuration.imagePlacement = .trailing
let btn = UIButton(configuration: configuration)
    
btn.contentHorizontalAlignment = .fill
    
btn.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(btn)
let g = view.safeAreaLayoutGuide
NSLayoutConstraint.activate([
    btn.topAnchor.constraint(equalTo: g.topAnchor, constant: 20.0),
    btn.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 60.0),
    btn.trailingAnchor.constraint(equalTo: g.trailingAnchor, constant: -60.0),
])

结果：