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Move ASTableView & ASCollectionView data fetching to background thread

Browse Source 
Conflicts:
	AsyncDisplayKit/ASCollectionView.mm
	AsyncDisplayKit/Details/ASDataController.mm

Conflicts:
	AsyncDisplayKit/ASCollectionView.mm
	AsyncDisplayKit/Details/ASDataController.mm
This commit is contained in:
Li Tan
2015-02-09 16:39:16 -08:00
parent e08975cbfa
commit 2f88ce56a2
6 changed files with 152 additions and 2 deletions
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25
AsyncDisplayKit/Details/ASDataController.h
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@@ -3,6 +3,19 @@
#import <UIKit/UIKit.h>
#import <AsyncDisplayKit/ASDealloc2MainObject.h>
/**
Enable the data fetching in async mode.
If enabled, we will fetch data through `dataController:nodeAtIndexPath:` and `dataController:rowsInSection:` in background thread.
Otherwise, the methods will be invoked synchronically in calling thread.
Enabling data fetching in async mode could avoid blocking main thread while allocating cell on main thread, which is frequently reported
issue for handing large scale data. On another hand, the application code will take the responsibility to avoid data inconsistence.
Specifically, we will lock the data source through `dataControllerLockDataSourceForDataUpdating`, and unlock it by `dataControllerUnlockDataSourceForDataUpdating`
after the data fetching. The application should not update the data source while the data source is locked.
*/
#define ENABLE_ASYNC_DATA_FETCHING 1
@class ASCellNode;
@class ASDataController;
@@ -27,13 +40,23 @@ typedef NSUInteger ASDataControllerAnimationOptions;
/**
Fetch the number of rows in specific section.
*/
- (NSUInteger)dataController:(ASDataController *)dataControllre rowsInSection:(NSUInteger)section;
- (NSUInteger)dataController:(ASDataController *)dataController rowsInSection:(NSUInteger)section;
/**
Fetch the number of sections.
*/
- (NSUInteger)dataControllerNumberOfSections:(ASDataController *)dataController;
/**
Lock the data source for data fetching.
*/
- (void)dataControllerLockDataSourceForDataUpdating;
/**
Unlock the data source after data fetching.
*/
- (void)dataControllerUnlockDataSourceForDataUpdating;
@end
/**