35 lines
1.0 KiB
Swift
35 lines
1.0 KiB
Swift
//
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// CollectionViewController.swift
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// Tusker
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//
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// Created by Shadowfacts on 11/29/22.
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// Copyright © 2022 Shadowfacts. All rights reserved.
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//
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import UIKit
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@MainActor
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protocol CollectionViewController: UIViewController {
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var collectionView: UICollectionView! { get }
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}
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extension CollectionViewController {
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func clearSelectionOnAppear(animated: Bool) {
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guard let indexPath = collectionView.indexPathsForSelectedItems?.first else {
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return
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}
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if let transitionCoordinator {
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transitionCoordinator.animate { context in
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self.collectionView.deselectItem(at: indexPath, animated: true)
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} completion: { context in
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if context.isCancelled {
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self.collectionView.selectItem(at: indexPath, animated: false, scrollPosition: [] /* UICollectionViewScrollPositionNone */)
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}
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}
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} else {
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collectionView.deselectItem(at: indexPath, animated: animated)
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}
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}
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}
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