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Added selection API to ASTableNode and ASCollectionNode (#2453)

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* Added selection API to ASTableNode and ASCollectionNode (#2450)

* Updated test case to use collectionNode instead of collectionView for the selection tests.

* Fixed typos.
Added asserts for main thread.
Updated ASCollectionViewTests for multiple selections for nodes.

* Added assigns to the different properties.
This commit is contained in:
george-gw
2016-10-24 18:30:09 +02:00
committed by Adlai Holler
parent 4dca05767b
commit 3638feffd4
5 changed files with 311 additions and 13 deletions
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44
AsyncDisplayKit/ASCollectionNode.h
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@@ -74,6 +74,20 @@ NS_ASSUME_NONNULL_BEGIN
*/
@property (weak, nonatomic) id <ASCollectionDataSource> dataSource;
/**
* A Boolean value that indicates whether users can select items in the collection node.
* If the value of this property is YES (the default), users can select items. If you want more fine-grained control over the selection of items, you must provide a delegate object and implement the appropriate methods of the UICollectionNodeDelegate protocol.
*/
@property (nonatomic, assign) BOOL allowsSelection;
/**
* A Boolean value that determines whether users can select more than one item in the collection node.
* This property controls whether multiple items can be selected simultaneously. The default value of this property is NO.
* When the value of this property is YES, tapping a cell adds it to the current selection (assuming the delegate permits the cell to be selected). Tapping the cell again removes it from the selection.
*/
@property (nonatomic, assign) BOOL allowsMultipleSelection;
/**
* Tuning parameters for a range type in full mode.
*
@@ -272,6 +286,36 @@ NS_ASSUME_NONNULL_BEGIN
*/
- (void)relayoutItems;
#pragma mark - Selection
/**
* Selects the item at the specified index path and optionally scrolls it into view.
* If the `allowsSelection` property is NO, calling this method has no effect. If there is an existing selection with a different index path and the `allowsMultipleSelection` property is NO, calling this method replaces the previous selection.
* This method does not cause any selection-related delegate methods to be called.
*
* @param indexPath The index path of the item to select. Specifying nil for this parameter clears the current selection.
*
* @param animated Specify YES to animate the change in the selection or NO to make the change without animating it.
*
* @param scrollPosition An option that specifies where the item should be positioned when scrolling finishes. For a list of possible values, see `UICollectionViewScrollPosition`.
*
* @discussion This method must be called from the main thread.
*/
- (void)selectItemAtIndexPath:(nullable NSIndexPath *)indexPath animated:(BOOL)animated scrollPosition:(UICollectionViewScrollPosition)scrollPosition;
/**
* Deselects the item at the specified index.
* If the allowsSelection property is NO, calling this method has no effect.
* This method does not cause any selection-related delegate methods to be called.
*
* @param indexPath The index path of the item to select. Specifying nil for this parameter clears the current selection.
*
* @param animated Specify YES to animate the change in the selection or NO to make the change without animating it.
*
* @discussion This method must be called from the main thread.
*/
- (void)deselectItemAtIndexPath:(NSIndexPath *)indexPath animated:(BOOL)animated;
#pragma mark - Querying Data
/**