24 lines
688 B
Swift
24 lines
688 B
Swift
import UIKit
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final class HairlineView: UIView {
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private var heightConstraint: NSLayoutConstraint?
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override init(frame: CGRect) {
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super.init(frame: frame)
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backgroundColor = .separator
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translatesAutoresizingMaskIntoConstraints = false
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let constraint = heightAnchor.constraint(equalToConstant: 0.5)
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constraint.isActive = true
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heightConstraint = constraint
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}
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@available(*, unavailable)
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required init?(coder: NSCoder) { fatalError() }
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override func didMoveToWindow() {
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super.didMoveToWindow()
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let scale = window?.windowScene?.screen.scale ?? 2
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heightConstraint?.constant = 1.0 / scale
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}
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}
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