mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-14 21:08:48 +00:00
44 lines
1.4 KiB
Objective-C
44 lines
1.4 KiB
Objective-C
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <UIKit/UIKit.h>
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@class IGListAdapter;
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@protocol IGListSectionType;
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@interface IGListWorkingRangeHandler : NSObject
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/**
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Initializes the working range handler.
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@param workingRangeSize the number of sections beyond the visible viewport that should be considered within the working
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range. Applies equally in both directions above and below the viewport.
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*/
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- (instancetype)initWithWorkingRangeSize:(NSInteger)workingRangeSize;
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/**
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Tells the handler that a cell will be displayed in the IGListKit infra.
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@param indexPath The index path of the cell in the UICollectionView.
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@param listAdapter The adapter managing the infra.
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*/
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- (void)willDisplayItemAtIndexPath:(NSIndexPath *)indexPath
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forListAdapter:(IGListAdapter *)listAdapter;
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/**
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Tells the handler that a cell did end display in the IGListKit infra.
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@param indexPath The index path of the cell in the UICollectionView.
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@param listAdapter The adapter managing the infra.
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*/
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- (void)didEndDisplayingItemAtIndexPath:(NSIndexPath *)indexPath
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forListAdapter:(IGListAdapter *)listAdapter;
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@end
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