mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-09 18:40:52 +00:00
d4ec467bac
Summary: Swift 5 came out a while ago, we should definitely be targeting it. Reviewed By: lorixx Differential Revision: D19141252 fbshipit-source-id: d6f8fc5209e721a8b28e569855b5e3cc8b8c3431
63 lines
2.4 KiB
Swift
63 lines
2.4 KiB
Swift
/**
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Copyright (c) Facebook, Inc. and its affiliates.
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The examples provided by Facebook are for non-commercial testing and evaluation
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purposes only. Facebook reserves all rights not expressly granted.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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import UIKit
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final class LabelCell: UICollectionViewCell {
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fileprivate static let insets = UIEdgeInsets(top: 8, left: 15, bottom: 8, right: 15)
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fileprivate static let font = UIFont.systemFont(ofSize: 40)
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static var singleLineHeight: CGFloat {
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return font.lineHeight + insets.top + insets.bottom
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}
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static func textHeight(_ text: String, width: CGFloat) -> CGFloat {
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let constrainedSize = CGSize(width: width - insets.left - insets.right, height: CGFloat.greatestFiniteMagnitude)
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let attributes = [ NSAttributedString.Key.font: font ]
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let options: NSStringDrawingOptions = [.usesFontLeading, .usesLineFragmentOrigin]
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let bounds = (text as NSString).boundingRect(with: constrainedSize, options: options, attributes: attributes, context: nil)
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return ceil(bounds.height) + insets.top + insets.bottom
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}
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lazy var label: UILabel = {
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let label = UILabel()
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label.backgroundColor = .clear
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label.numberOfLines = 1
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label.font = LabelCell.font
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self.contentView.addSubview(label)
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return label
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}()
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lazy var separator: CALayer = {
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let layer = CALayer()
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layer.backgroundColor = UIColor(red: 200 / 255.0, green: 199 / 255.0, blue: 204 / 255.0, alpha: 1).cgColor
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self.contentView.layer.addSublayer(layer)
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return layer
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}()
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override func layoutSubviews() {
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super.layoutSubviews()
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let bounds = contentView.bounds
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label.frame = bounds.inset(by: LabelCell.insets)
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let height: CGFloat = 0.5
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let left = LabelCell.insets.left
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separator.frame = CGRect(x: left, y: bounds.height - height, width: bounds.width - left, height: height)
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}
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override var canBecomeFocused: Bool {
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return false
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}
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}
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