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Readd ASDisplayShouldFetchBatchForContext

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This commit is contained in:
Michael Schneider
2016-04-08 20:02:20 -07:00
parent 24ca09ee6c
commit bb110ca6e8
2 changed files with 32 additions and 4 deletions
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20
AsyncDisplayKit/Private/ASBatchFetching.h
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@@ -32,4 +32,24 @@ ASDISPLAYNODE_EXTERN_C_BEGIN
*/
BOOL ASDisplayShouldFetchBatchForScrollView(UIScrollView<ASBatchFetchingScrollView> *scrollView, ASScrollDirection scrollDirection, CGPoint contentOffset);
/**
@abstract Determine if batch fetching should begin based on the state of the parameters.
@param context The batch fetching context that contains knowledge about in-flight fetches.
@param scrollDirection The current scrolling direction of the scroll view.
@param bounds The bounds of the scrollview.
@param contentSize The content size of the scrollview.
@param targetOffset The offset that the scrollview will scroll to.
@param leadingScreens How many screens in the remaining distance will trigger batch fetching.
@return Whether or not the current state should proceed with batch fetching.
@discussion This method is broken into a category for unit testing purposes and should be used with the ASTableView and
* ASCollectionView batch fetching API.
*/
extern BOOL ASDisplayShouldFetchBatchForContext(ASBatchContext *context,
ASScrollDirection scrollDirection,
CGRect bounds,
CGSize contentSize,
CGPoint targetOffset,
CGFloat leadingScreens);
ASDISPLAYNODE_EXTERN_C_END