102 lines
3.1 KiB
Swift
102 lines
3.1 KiB
Swift
import UIKit
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class GIFCollectionViewCell: UICollectionViewCell {
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private let gifPlayerView: GIFPlayerView = {
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let player = GIFPlayerView()
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player.layer.cornerRadius = 8
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player.clipsToBounds = true
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return player
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}()
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private let loadingIndicator: UIActivityIndicatorView = {
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let indicator = UIActivityIndicatorView(style: .medium)
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indicator.hidesWhenStopped = true
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return indicator
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}()
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private let placeholderLabel: UILabel = {
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let label = UILabel()
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label.text = "GIF"
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label.textAlignment = .center
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label.font = .systemFont(ofSize: 12, weight: .medium)
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label.textColor = .systemGray
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return label
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}()
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private var gifData: Data?
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override init(frame: CGRect) {
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super.init(frame: frame)
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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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override func prepareForReuse() {
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super.prepareForReuse()
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gifData = nil
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gifPlayerView.stopAnimating()
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placeholderLabel.isHidden = false
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loadingIndicator.stopAnimating()
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}
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private func setupUI() {
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contentView.addSubview(gifPlayerView)
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contentView.addSubview(loadingIndicator)
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contentView.addSubview(placeholderLabel)
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gifPlayerView.translatesAutoresizingMaskIntoConstraints = false
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loadingIndicator.translatesAutoresizingMaskIntoConstraints = false
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placeholderLabel.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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gifPlayerView.topAnchor.constraint(equalTo: contentView.topAnchor),
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gifPlayerView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
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gifPlayerView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
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gifPlayerView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),
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loadingIndicator.centerXAnchor.constraint(equalTo: contentView.centerXAnchor),
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loadingIndicator.centerYAnchor.constraint(equalTo: contentView.centerYAnchor),
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placeholderLabel.centerXAnchor.constraint(equalTo: contentView.centerXAnchor),
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placeholderLabel.centerYAnchor.constraint(equalTo: contentView.centerYAnchor),
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])
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contentView.layer.cornerRadius = 8
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contentView.layer.borderWidth = 1
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contentView.layer.borderColor = UIColor.systemGray4.cgColor
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}
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func configure(with gif: GIF) {
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// Reset UI
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gifPlayerView.stopAnimating()
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placeholderLabel.isHidden = false
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loadingIndicator.startAnimating()
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// Load the GIF data from local storage
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DispatchQueue.global(qos: .userInitiated).async { [weak self] in
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if let gifData = GIFStorageService.shared.getGIFData(for: gif) {
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DispatchQueue.main.async {
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guard let self = self else { return }
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self.loadingIndicator.stopAnimating()
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self.gifData = gifData
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self.gifPlayerView.loadGIF(from: gifData)
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self.gifPlayerView.startAnimating()
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self.placeholderLabel.isHidden = true
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}
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} else {
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DispatchQueue.main.async {
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guard let self = self else { return }
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self.loadingIndicator.stopAnimating()
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self.placeholderLabel.isHidden = false
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}
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}
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}
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}
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} |