Andrea Busi
120 lines
3.6 KiB
Swift
120 lines
3.6 KiB
Swift
//
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// SettingSliderTableViewCell.swift
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// Earthquake Network
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//
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// Created by Busi Andrea on 25/08/2020.
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// Copyright © 2020 Earthquake Network. All rights reserved.
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//
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import UIKit
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class SettingSliderTableViewCell: UITableViewCell {
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@objc static let Identifier = "SliderCell"
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private static let ValueColor = UIColor.blue
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private static let TextColor = UIColor.black
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@objc var isDisabled: Bool = false {
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didSet {
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updateUI()
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}
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}
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@objc var valueChanged: ((EQNGenericValue) -> Void)?
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private var items = [EQNGenericValue]()
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// MARK: - Properties
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@objc lazy var titleLabel: UILabel = {
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let label = UILabel()
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label.translatesAutoresizingMaskIntoConstraints = false
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label.numberOfLines = 0
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label.font = UIFont.preferredFont(forTextStyle: .body)
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return label
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}()
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@objc lazy var valueLabel: UILabel = {
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let label = UILabel()
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label.translatesAutoresizingMaskIntoConstraints = false
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label.numberOfLines = 0
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label.font = UIFont.preferredFont(forTextStyle: .subheadline)
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label.textColor = Self.ValueColor
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return label
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}()
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@objc lazy var slider: UISlider = {
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let slider = UISlider()
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slider.isContinuous = true
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slider.addTarget(self, action: #selector(sliderChanged(_:)), for: .valueChanged)
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return slider
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}()
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// MARK: - Init
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override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
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super.init(style: style, reuseIdentifier: reuseIdentifier)
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setupUI()
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}
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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setupUI()
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}
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// MARK: - Private
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private func setupUI() {
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selectionStyle = .none
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translatesAutoresizingMaskIntoConstraints = false
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let stackView = UIStackView()
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stackView.translatesAutoresizingMaskIntoConstraints = false
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stackView.axis = .vertical
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stackView.distribution = .equalSpacing
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stackView.spacing = 8
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stackView.addArrangedSubview(titleLabel)
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stackView.addArrangedSubview(valueLabel)
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stackView.addArrangedSubview(slider)
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contentView.addSubview(stackView)
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stackView.topAnchor.constraint(equalTo: contentView.layoutMarginsGuide.topAnchor).isActive = true
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stackView.trailingAnchor.constraint(equalTo: contentView.layoutMarginsGuide.trailingAnchor).isActive = true
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stackView.leadingAnchor.constraint(equalTo: contentView.layoutMarginsGuide.leadingAnchor).isActive = true
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stackView.bottomAnchor.constraint(equalTo: contentView.layoutMarginsGuide.bottomAnchor).isActive = true
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}
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private func updateUI() {
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titleLabel.textColor = isDisabled ? .lightGray : Self.TextColor
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valueLabel.textColor = isDisabled ? .lightGray : Self.ValueColor
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slider.isEnabled = !isDisabled
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}
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// MARK: - Actions
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@objc private func sliderChanged(_ sender: UISlider) {
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let index = Int(sender.value)
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let item = items[index]
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valueLabel.text = item.display
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valueChanged?(item)
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}
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// MARK: - Public
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@objc func configureSlider(with items: [EQNGenericValue], current: EQNGenericValue) {
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self.items = items
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slider.minimumValue = 0
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slider.maximumValue = Float(items.count - 1)
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if let index = items.firstIndex(of: current) {
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slider.value = Float(index)
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valueLabel.text = current.display
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} else {
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slider.value = 0
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valueLabel.text = ""
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}
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}
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}
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