mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-06 15:08:50 +00:00
019b22da07
Summary: ## Changes in this pull request ### Checklist - [x] All tests pass. Demo project builds and runs. - [x] I added tests, an experiment, or detailed why my change isn't tested. - [x] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes. - [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md) Pull Request resolved: https://github.com/Instagram/IGListKit/pull/1453 Reviewed By: lorixx Differential Revision: D23836038 Pulled By: joetam fbshipit-source-id: 8245415992a5b1ed49f67ebfcf9f85a2745a8042
79 lines
2.7 KiB
Swift
79 lines
2.7 KiB
Swift
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import UIKit
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final class FullWidthSelfSizingCell: UICollectionViewCell {
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private let label: UILabel = {
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let label = UILabel()
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label.backgroundColor = UIColor.red.withAlphaComponent(0.1)
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label.numberOfLines = 0
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label.translatesAutoresizingMaskIntoConstraints = false
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return label
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}()
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var text: String? {
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get {
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return label.text
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}
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set {
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label.text = newValue
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}
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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contentView.backgroundColor = UIColor.background
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contentView.addSubview(label)
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NSLayoutConstraint(item: label,
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attribute: .top,
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relatedBy: .equal,
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toItem: contentView,
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attribute: .top,
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multiplier: 1,
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constant: 15).isActive = true
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NSLayoutConstraint(item: label,
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attribute: .leading,
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relatedBy: .equal,
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toItem: contentView,
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attribute: .leading,
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multiplier: 1,
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constant: 15).isActive = true
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NSLayoutConstraint(item: contentView,
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attribute: .bottom,
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relatedBy: .equal,
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toItem: label,
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attribute: .bottom,
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multiplier: 1,
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constant: 15).isActive = true
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NSLayoutConstraint(item: contentView,
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attribute: .trailing,
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relatedBy: .equal,
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toItem: label,
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attribute: .trailing,
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multiplier: 1,
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constant: 15).isActive = true
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func preferredLayoutAttributesFitting(_ layoutAttributes: UICollectionViewLayoutAttributes) -> UICollectionViewLayoutAttributes {
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setNeedsLayout()
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layoutIfNeeded()
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let size = contentView.systemLayoutSizeFitting(layoutAttributes.size)
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var newFrame = layoutAttributes.frame
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// note: don't change the width
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newFrame.size.height = ceil(size.height)
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layoutAttributes.frame = newFrame
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return layoutAttributes
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}
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}
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