64 lines
1.8 KiB
Swift
64 lines
1.8 KiB
Swift
//
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// EmojiCollectionViewCell.swift
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// Tusker
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//
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// Created by Shadowfacts on 10/12/20.
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// Copyright © 2020 Shadowfacts. All rights reserved.
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//
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import UIKit
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import Pachyderm
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class EmojiCollectionViewCell: UICollectionViewCell {
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private var emojiImageView: UIImageView!
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private var emojiNameLabel: UILabel!
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private var currentEmojiShortcode: String?
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private var imageRequest: ImageCache.Request?
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override init(frame: CGRect) {
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super.init(frame: frame)
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commonInit()
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}
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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commonInit()
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}
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private func commonInit() {
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emojiImageView = UIImageView()
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emojiImageView.translatesAutoresizingMaskIntoConstraints = false
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emojiImageView.contentMode = .scaleAspectFit
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addSubview(emojiImageView)
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NSLayoutConstraint.activate([
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emojiImageView.leadingAnchor.constraint(equalTo: leadingAnchor),
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emojiImageView.trailingAnchor.constraint(equalTo: trailingAnchor),
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emojiImageView.topAnchor.constraint(equalTo: topAnchor),
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emojiImageView.bottomAnchor.constraint(equalTo: bottomAnchor),
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])
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}
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func updateUI(emoji: Emoji) {
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currentEmojiShortcode = emoji.shortcode
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imageRequest = ImageCache.emojis.get(emoji.url) { [weak self] (_, image) in
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guard let image = image else { return }
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DispatchQueue.main.async { [weak self] in
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guard let self = self, self.currentEmojiShortcode == emoji.shortcode else { return }
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self.emojiImageView.image = image
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}
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}
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}
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override func prepareForReuse() {
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super.prepareForReuse()
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imageRequest?.cancel()
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}
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}
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