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Fixes crash loading save states on iOS 17

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Crashes due to GridCollectionViewLayout returning outdated cached layout information when inserting “Auto” save states section for the first time.

To fix this, we now clear the layout cache in invalidateLayout(with:) when relevant.
This commit is contained in:
Riley Testut 2023-06-16 15:25:49 -05:00
parent 21147969ea
commit 3e858c652f
1 changed files with 12 additions and 0 deletions
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12
Delta/Components/Collection View/GridCollectionViewLayout.swift
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@ -66,6 +66,18 @@ class GridCollectionViewLayout: UICollectionViewFlowLayout
self.sectionInset.right = self.interitemSpacing + self.contentInset.right
}
override func invalidateLayout(with context: UICollectionViewLayoutInvalidationContext)
{
super.invalidateLayout(with: context)
if let context = context as? UICollectionViewFlowLayoutInvalidationContext,
context.invalidateFlowLayoutAttributes || context.invalidateFlowLayoutDelegateMetrics || context.invalidateEverything
{
// We must clear layout cache on iOS 17 or later to prevent crashing due to returning outdated layout attributes.
self.cachedLayoutAttributes = [:]
}
}
override func layoutAttributesForElements(in rect: CGRect) -> [UICollectionViewLayoutAttributes]?
{
let layoutAttributes = super.layoutAttributesForElements(in: rect)?.map({ $0.copy() }) as! [UICollectionViewLayoutAttributes]