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Clarify layout delegate assertion messages

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This commit is contained in:
Levi McCallum
2015-10-11 10:35:27 -07:00
parent 848dc26a0d
commit 0870d50e36
1 changed files with 3 additions and 3 deletions
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6
AsyncDisplayKit/ASCollectionView.mm
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@@ -746,19 +746,19 @@ static BOOL _isInterceptedSelector(SEL sel)
- (ASSizeRange)dataController:(ASCollectionDataController *)dataController constrainedSizeForSupplementaryNodeOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
ASDisplayNodeAssert(_layoutDelegate != nil, @"ASCollectionView must have a layoutDelegate for layout inspection");
ASDisplayNodeAssert(_layoutDelegate != nil, @"To support supplementary nodes in ASCollectionView, it must have a layoutDelegate for layout inspection. (See ASCollectionViewFlowLayoutInspector for an example.)");
return [_layoutDelegate collectionView:self constrainedSizeForSupplementaryNodeOfKind:kind atIndexPath:indexPath];
}
- (NSUInteger)dataController:(ASCollectionDataController *)dataController supplementaryViewsOfKind:(NSString *)kind inSection:(NSUInteger)section
{
ASDisplayNodeAssert(_layoutDelegate != nil, @"ASCollectionView must have a layoutDelegate for layout inspection");
ASDisplayNodeAssert(_layoutDelegate != nil, @"To support supplementary nodes in ASCollectionView, it must have a layoutDelegate for layout inspection. (See ASCollectionViewFlowLayoutInspector for an example.)");
return [_layoutDelegate collectionView:self supplementaryViewsOfKind:kind inSection:section];
}
- (NSUInteger)dataController:(ASCollectionDataController *)dataController numberOfSectionsForSupplementaryKind:(NSString *)kind;
{
ASDisplayNodeAssert(_layoutDelegate != nil, @"ASCollectionView must have a layoutDelegate for layout inspection");
ASDisplayNodeAssert(_layoutDelegate != nil, @"To support supplementary nodes in ASCollectionView, it must have a layoutDelegate for layout inspection. (See ASCollectionViewFlowLayoutInspector for an example.)");
return [_layoutDelegate collectionView:self numberOfSectionsForSupplementaryKind:kind];
}