41 lines
1.4 KiB
Swift
41 lines
1.4 KiB
Swift
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//
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// UICollectionViewDiffableDataSource.swift
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// Mastodon
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//
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// Created by Cirno MainasuK on 2021-10-11.
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//
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import UIKit
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// ref: https://www.jessesquires.com/blog/2021/07/08/diffable-data-source-behavior-changes-and-reconfiguring-cells-in-ios-15/
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extension UICollectionViewDiffableDataSource {
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func reloadData(
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snapshot: NSDiffableDataSourceSnapshot<SectionIdentifierType, ItemIdentifierType>,
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completion: (() -> Void)? = nil
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) {
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if #available(iOS 15.0, *) {
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self.applySnapshotUsingReloadData(snapshot, completion: completion)
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} else {
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self.apply(snapshot, animatingDifferences: false, completion: completion)
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}
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}
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func applySnapshot(
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_ snapshot: NSDiffableDataSourceSnapshot<SectionIdentifierType, ItemIdentifierType>,
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animated: Bool,
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completion: (() -> Void)? = nil) {
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if #available(iOS 15.0, *) {
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self.apply(snapshot, animatingDifferences: animated, completion: completion)
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} else {
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if animated {
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self.apply(snapshot, animatingDifferences: true, completion: completion)
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} else {
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UIView.performWithoutAnimation {
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self.apply(snapshot, animatingDifferences: true, completion: completion)
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}
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}
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}
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}
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}
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