mirror of
https://github.com/Instagram/IGListKit
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b4c8ea180f
Summary: I'd like to be able to access the current collection view scrolling traits inside section controllers. These are expressed as three properties from `UIScrollView`: `isTracking`, `isDragging`, and `isDecelerating`. My approach is to add a new struct `IGListCollectionScrollingTraits` with these three values, and expose this to section controllers through `IGListCollectionContext`. Reviewed By: rnystrom Differential Revision: D7986814 fbshipit-source-id: 19e9bd3b89545b10238dd060a5af8c5a0f39eb82
22 lines
876 B
Objective-C
22 lines
876 B
Objective-C
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <Foundation/Foundation.h>
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/**
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The current scrolling traits of the underlying collection view.
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The attributes are always equal to their corresponding properties on the underlying collection view.
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*/
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NS_SWIFT_NAME(ListCollectionScrollingTraits)
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typedef struct IGListCollectionScrollingTraits {
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/// returns YES if user has touched. may not yet have started dragging.
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bool isTracking;
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/// returns YES if user has started scrolling. this may require some time and or distance to move to initiate dragging
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bool isDragging;
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/// returns YES if user isn't dragging (touch up) but scroll view is still moving.
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bool isDecelerating;
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} IGListCollectionScrollingTraits;
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