mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-01 10:27:19 +00:00
1b70435993
Summary: Adding a pretty basic stacked demo. 3 different sections, each with 3 child section controllers that handle an `Int` data. Requires #354 to be fully functional (working range). Closes #134 - [x] All tests pass. Demo project builds and runs. - [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md) Closes https://github.com/Instagram/IGListKit/pull/355 Differential Revision: D4363859 Pulled By: jessesquires fbshipit-source-id: 5dbc8e18388fed4930f189e3477ff57f0edf2d13
74 lines
2.7 KiB
Swift
74 lines
2.7 KiB
Swift
/**
|
|
Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
|
|
|
|
The examples provided by Facebook are for non-commercial testing and evaluation
|
|
purposes only. Facebook reserves all rights not expressly granted.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
import UIKit
|
|
|
|
class LabelCell: UICollectionViewCell {
|
|
|
|
fileprivate static let insets = UIEdgeInsets(top: 8, left: 15, bottom: 8, right: 15)
|
|
fileprivate static let font = UIFont.systemFont(ofSize: 17)
|
|
|
|
static var singleLineHeight: CGFloat {
|
|
return font.lineHeight + insets.top + insets.bottom
|
|
}
|
|
|
|
static func textHeight(_ text: String, width: CGFloat) -> CGFloat {
|
|
let constrainedSize = CGSize(width: width - insets.left - insets.right, height: CGFloat.greatestFiniteMagnitude)
|
|
let attributes = [ NSFontAttributeName: font ]
|
|
let options: NSStringDrawingOptions = [.usesFontLeading, .usesLineFragmentOrigin]
|
|
let bounds = (text as NSString).boundingRect(with: constrainedSize, options: options, attributes: attributes, context: nil)
|
|
return ceil(bounds.height) + insets.top + insets.bottom
|
|
}
|
|
|
|
let label: UILabel = {
|
|
let label = UILabel()
|
|
label.backgroundColor = .clear
|
|
label.numberOfLines = 1
|
|
label.font = LabelCell.font
|
|
return label
|
|
}()
|
|
|
|
let separator: CALayer = {
|
|
let layer = CALayer()
|
|
layer.backgroundColor = UIColor(red: 200/255.0, green: 199/255.0, blue: 204/255.0, alpha: 1).cgColor
|
|
return layer
|
|
}()
|
|
|
|
override init(frame: CGRect) {
|
|
super.init(frame: frame)
|
|
contentView.addSubview(label)
|
|
contentView.layer.addSublayer(separator)
|
|
contentView.backgroundColor = .white
|
|
}
|
|
|
|
required init?(coder aDecoder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func layoutSubviews() {
|
|
super.layoutSubviews()
|
|
let bounds = contentView.bounds
|
|
label.frame = UIEdgeInsetsInsetRect(bounds, LabelCell.insets)
|
|
let height: CGFloat = 0.5
|
|
let left = LabelCell.insets.left
|
|
separator.frame = CGRect(x: left, y: bounds.height - height, width: bounds.width - left, height: height)
|
|
}
|
|
|
|
override var isHighlighted: Bool {
|
|
didSet {
|
|
contentView.backgroundColor = UIColor(white: isHighlighted ? 0.9 : 1, alpha: 1)
|
|
}
|
|
}
|
|
|
|
}
|