forked from zelo72/mastodon-ios
56 lines
1.6 KiB
Swift
56 lines
1.6 KiB
Swift
//
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// AdaptiveMarginContainerView.swift
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//
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//
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// Created by MainasuK on 2022-2-18.
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//
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import UIKit
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public final class AdaptiveMarginContainerView: UIView {
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public var margin: CGFloat = 0 {
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didSet { updateConstraints() }
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}
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public var contentView: UIView? {
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didSet {
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guard let contentView = contentView else { return }
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guard contentView.superview == nil else { return }
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contentView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(contentView)
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let _leadingLayoutConstraint = contentView.leadingAnchor.constraint(equalTo: leadingAnchor)
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let _trailingLayoutConstraint = trailingAnchor.constraint(equalTo: contentView.trailingAnchor)
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NSLayoutConstraint.activate([
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contentView.topAnchor.constraint(equalTo: topAnchor),
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_leadingLayoutConstraint,
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_trailingLayoutConstraint,
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contentView.bottomAnchor.constraint(equalTo: bottomAnchor),
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])
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leadingLayoutConstraint = _leadingLayoutConstraint
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trailingLayoutConstraint = _trailingLayoutConstraint
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updateConstraints()
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}
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}
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var leadingLayoutConstraint: NSLayoutConstraint?
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var trailingLayoutConstraint: NSLayoutConstraint?
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}
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extension AdaptiveMarginContainerView {
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public override func updateConstraints() {
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super.updateConstraints()
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leadingLayoutConstraint?.constant = margin
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trailingLayoutConstraint?.constant = margin
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}
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}
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