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Move ASCellNode allocation off the main thread by the addition of a node block

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API in ASDataController. Move allocations and loaded node layouts to occur
during batch layout phase.
This commit is contained in:
Rahul Malik
2016-02-02 15:00:24 -08:00
parent 35a4b268d6
commit 521c3fa1c1
14 changed files with 306 additions and 48 deletions
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11
AsyncDisplayKit/ASPagerNode.m
View File

@@ -84,6 +84,17 @@
return pageNode;
}
- (ASDataControllerCellNodeBlock)collectionView:(ASCollectionView *)collectionView nodeBlockAtIndexPath:(NSIndexPath *)indexPath {
ASDisplayNodeAssert(_pagerDataSource != nil, @"ASPagerNode must have a data source to load nodes to display");
if (![_pagerDataSource respondsToSelector:@selector(pagerNode:nodeBlockAtIndex:)]) {
ASCellNode *node = [_pagerDataSource pagerNode:self nodeAtIndex:indexPath.item];
return ^{ return node; };
}
ASDataControllerCellNodeBlock block = [_pagerDataSource pagerNode:self nodeBlockAtIndex:indexPath.item];
ASDisplayNodeAssertNotNil(block, @"Invalid node block. Block should be non-nil.");
return block;
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
ASDisplayNodeAssert(_pagerDataSource != nil, @"ASPagerNode must have a data source to load nodes to display");