89 lines
2.9 KiB
Swift
89 lines
2.9 KiB
Swift
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// Copyright © 2020 Metabolist. All rights reserved.
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import Kingfisher
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import UIKit
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import ViewModels
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final class ConversationAvatarsView: UIView {
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private let leftStackView = UIStackView()
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private let rightStackView = UIStackView()
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var viewModel: ConversationViewModel? {
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didSet {
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for stackView in [leftStackView, rightStackView] {
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for view in stackView.arrangedSubviews {
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stackView.removeArrangedSubview(view)
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view.removeFromSuperview()
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}
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}
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let accountViewModels = viewModel?.accountViewModels ?? []
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let accountCount = accountViewModels.count
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rightStackView.isHidden = accountCount == 1
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for (index, accountViewModel) in accountViewModels.enumerated() {
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let imageView = AnimatedImageView()
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imageView.contentMode = .scaleAspectFill
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imageView.clipsToBounds = true
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imageView.kf.setImage(with: accountViewModel.avatarURL())
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if accountCount == 2 && index == 1
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|| accountCount == 3 && index != 0
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|| accountCount > 3 && index % 2 != 0 {
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rightStackView.addArrangedSubview(imageView)
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} else {
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leftStackView.addArrangedSubview(imageView)
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}
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}
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}
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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initialSetup()
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}
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@available(*, unavailable)
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func layoutSubviews() {
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super.layoutSubviews()
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layer.cornerRadius = bounds.height / 2
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}
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}
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private extension ConversationAvatarsView {
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func initialSetup() {
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backgroundColor = .clear
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clipsToBounds = true
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let containerStackView = UIStackView()
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addSubview(containerStackView)
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containerStackView.translatesAutoresizingMaskIntoConstraints = false
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containerStackView.distribution = .fillEqually
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containerStackView.spacing = .ultraCompactSpacing
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leftStackView.distribution = .fillEqually
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leftStackView.spacing = .ultraCompactSpacing
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leftStackView.axis = .vertical
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rightStackView.distribution = .fillEqually
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rightStackView.spacing = .ultraCompactSpacing
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rightStackView.axis = .vertical
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containerStackView.addArrangedSubview(leftStackView)
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containerStackView.addArrangedSubview(rightStackView)
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NSLayoutConstraint.activate([
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containerStackView.leadingAnchor.constraint(equalTo: leadingAnchor),
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containerStackView.trailingAnchor.constraint(equalTo: trailingAnchor),
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containerStackView.topAnchor.constraint(equalTo: topAnchor),
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containerStackView.bottomAnchor.constraint(equalTo: bottomAnchor)
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])
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}
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}
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