NetNewsWire/iOS/UIKit Extensions/VibrantTableViewCell.swift

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//
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// VibrantTableViewCell.swift
// NetNewsWire-iOS
//
// Created by Jim Correia on 9/2/19.
// Copyright © 2019 Ranchero Software. All rights reserved.
//
import UIKit
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class VibrantTableViewCell: UITableViewCell {
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static let duration: TimeInterval = 0.6
var labelColor: UIColor {
return isHighlighted || isSelected ? AppAssets.vibrantTextColor : UIColor.label
}
var secondaryLabelColor: UIColor {
return isHighlighted || isSelected ? AppAssets.vibrantTextColor : UIColor.secondaryLabel
}
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
commonInit()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
commonInit()
}
private func commonInit() {
applyThemeProperties()
}
override func setHighlighted(_ highlighted: Bool, animated: Bool) {
super.setHighlighted(highlighted, animated: animated)
updateVibrancy(animated: animated)
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
updateVibrancy(animated: animated)
}
/// Subclass overrides should call super
func applyThemeProperties() {
let selectedBackgroundView = UIView(frame: .zero)
selectedBackgroundView.backgroundColor = AppAssets.secondaryAccentColor
self.selectedBackgroundView = selectedBackgroundView
}
/// Subclass overrides should call super
func updateVibrancy(animated: Bool) {
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updateLabelVibrancy(textLabel, color: labelColor, animated: animated)
updateLabelVibrancy(detailTextLabel, color: labelColor, animated: animated)
}
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func updateLabelVibrancy(_ label: UILabel?, color: UIColor, animated: Bool) {
guard let label = label else { return }
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if animated {
UIView.transition(with: label, duration: Self.duration, options: .transitionCrossDissolve, animations: {
label.textColor = color
}, completion: nil)
} else {
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label.textColor = color
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}
}
}
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class VibrantBasicTableViewCell: VibrantTableViewCell {
@IBOutlet private var label: UILabel!
@IBOutlet private var detail: UILabel!
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@IBOutlet private var icon: UIImageView!
@IBInspectable var imageNormal: UIImage?
@IBInspectable var imageSelected: UIImage?
var iconTint: UIColor {
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return isHighlighted || isSelected ? labelColor : AppAssets.primaryAccentColor
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}
var iconImage: UIImage? {
return isHighlighted || isSelected ? imageSelected : imageNormal
}
override func updateVibrancy(animated: Bool) {
super.updateVibrancy(animated: animated)
updateIconVibrancy(icon, color: iconTint, image: iconImage, animated: animated)
updateLabelVibrancy(label, color: labelColor, animated: animated)
updateLabelVibrancy(detail, color: secondaryLabelColor, animated: animated)
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}
private func updateIconVibrancy(_ icon: UIImageView?, color: UIColor, image: UIImage?, animated: Bool) {
guard let icon = icon else { return }
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if animated {
UIView.transition(with: icon, duration: Self.duration, options: .transitionCrossDissolve, animations: {
icon.tintColor = color
icon.image = image
}, completion: nil)
} else {
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icon.tintColor = color
icon.image = image
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}
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}
}