LeadKitAdditions/Sources/Classes/Cells/PinLayoutTableViewCell.swift

103 lines
3.0 KiB
Swift

//
// Copyright (c) 2018 Touch Instinct
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the Software), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// 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 THE
// AUTHORS OR COPYRIGHT HOLDERS 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
import PinLayout
/// Cell that uses PinLayout. Contains methods that should be overriden in subclasses.
open class PinLayoutTableViewCell: UITableViewCell, PinLayoutCell {
public override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
initializeCell()
}
public required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
initializeCell()
}
open override func sizeThatFits(_ size: CGSize) -> CGSize {
return layout(with: size)
}
open override func layoutSubviews() {
super.layoutSubviews()
layout()
}
// MARK: - PinLayoutCell
open func initializeCell() {
addViews()
configureAppearance()
configureLayout()
}
open func layout(with containerSize: CGSize) -> CGSize {
// 1) Set the contentView's width to the specified size parameter
contentView.pin.width(containerSize.width).layout()
// 2) Layout the contentView's controls
layout()
// 3) Returns a size that contains all controls
return CGSize(width: contentView.frame.width,
height: contentHeight)
}
open func addViews() {
// override in subclass
// move from _UISnapshotWindow superview in Playground
addSubview(contentView)
}
open func configureAppearance() {
// override in subclass
}
open func configureLayout() {
// override in subclass
}
open func layout() {
// override in subclass
}
open var contentHeight: CGFloat {
return contentView.subviewsMaxY
}
}
private extension UIView {
var subviewsMaxY: CGFloat {
return subviews
.map { $0.frame.maxY }
.max() ?? frame.maxY
}
}