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Scrollable direction is invalid until a relayout. (#2375)

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This commit is contained in:
Garrett Moon
2016-10-13 10:51:23 -07:00
committed by Adlai Holler
parent 4595ebc06e
commit 9abae013a7
1 changed files with 6 additions and 0 deletions
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6
AsyncDisplayKit/ASCollectionView.mm
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@@ -1368,7 +1368,13 @@ static NSString * const kCellReuseIdentifier = @"_ASCollectionViewCell";
// If, for example, a vertical flow layout has its height changed due to a status bar
// appearance update, we do not need to relayout all nodes.
// For a more permanent fix to the unsafety mentioned above, see https://github.com/facebook/AsyncDisplayKit/pull/2182
// If the bounds have changed, scrollable directions may be invalid until relayout has
// occurred.
[[self collectionViewLayout] invalidateLayout];
[self layoutIfNeeded];
ASScrollDirection scrollDirection = self.scrollableDirections;
BOOL fixedVertically = (ASScrollDirectionContainsVerticalDirection(scrollDirection) == NO);
BOOL fixedHorizontally = (ASScrollDirectionContainsHorizontalDirection(scrollDirection) == NO);