[英]Content hugging priority not working with custom view and label in UIStackView
I am having trouble getting content hugging working on a custom view.我无法让内容拥抱在自定义视图上工作。 I have the following code:我有以下代码:
pillView.setContentHuggingPriority(.required, for: .horizontal)
pillView.setContentCompressionResistancePriority(.required, for: .horizontal)
dateLabel.setContentHuggingPriority(.defaultLow, for: .horizontal)
dateLabel.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
I add these two views to a stack view:我将这两个视图添加到堆栈视图中:
let dateStackView = UIStackView(arrangedSubviews: [pillView, dateLabel])
The result is like so:结果是这样的:
The LIVE NOW view should hug it's content. LIVE NOW 视图应该包含它的内容。 It's defined like so:它是这样定义的:
final class PillView: UIView {
private enum Constants {
static let radius: CGFloat = 4.0
static let labelInsets = UIEdgeInsets(horizontal: 8.0, vertical: 4.0)
}
enum Config {
case attention
var font: UIFont {
switch self {
case .attention: return Font.caption
}
}
var textColor: UIColor {
switch self {
case .attention: return .white
}
}
var backgroundColor: UIColor {
switch self {
case .attention: return Theme.red100
}
}
}
// MARK: - Properties
private let config: Config
// MARK: - Initializers
init(text: String, config: Config = .attention) {
self.config = config
super.init(frame: .zero)
backgroundColor = config.backgroundColor
clipsToBounds = true
layer.cornerRadius = Constants.radius
let label = UILabel()
label.font = config.font
label.textColor = config.textColor
label.text = text
addSubview(label)
label.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
label.topAnchor.constraint(equalTo: topAnchor, constant: Constants.labelInsets.top),
label.bottomAnchor.constraint(equalTo: bottomAnchor, constant: -Constants.labelInsets.bottom),
label.leadingAnchor.constraint(equalTo: leadingAnchor, constant: Constants.labelInsets.left),
label.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -Constants.labelInsets.right)
])
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
Not sure why it won't hug the content when in a stack view.不知道为什么它在堆栈视图中不会拥抱内容。 Any ideas?有任何想法吗? Would really appreciate some pointers on this.非常感谢对此的一些指示。 thanks!谢谢!
Add these lines in your PillView
init(...)
func:在您的PillView
init(...)
函数中添加这些行:
label.setContentHuggingPriority(.required, for: .horizontal)
label.setContentCompressionResistancePriority(.required, for: .horizontal)
You then don't need to set either of those properties for your pillView
or dateLabel
instances.然后,您不需要为您的pillView
或dateLabel
实例设置这些属性中的任何一个。
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