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< p > < a href = "../index.html" > IGListKit Docs< / a > (98% documented)< / p >
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IGListCollectionContext Protocol Reference
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< a href = "../Classes/IGListBindingSectionController.html" > IGListBindingSectionController< / a >
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< a href = "../Classes/IGListCollectionView.html" > IGListCollectionView< / a >
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< a href = "../Classes/IGListGenericSectionController.html" > IGListGenericSectionController< / a >
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< a href = "../Classes/IGListIndexPathResult.html" > IGListIndexPathResult< / a >
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< a href = "../Classes/IGListIndexSetResult.html" > IGListIndexSetResult< / a >
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< a href = "../Classes.html#/c:objc(cs)IGListReloadDataUpdater" > IGListReloadDataUpdater< / a >
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< a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a >
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< a href = "../Classes/IGListSingleSectionController.html" > IGListSingleSectionController< / a >
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< a href = "../Classes/IGListStackedSectionController.html" > IGListStackedSectionController< / a >
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< a href = "../Constants.html#/c:@IGListKitVersionString" > IGListKitVersionString< / a >
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< a href = "../Enums/IGListAdapterUpdateType.html" > IGListAdapterUpdateType< / a >
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< a href = "../Enums/IGListDiffOption.html" > IGListDiffOption< / a >
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< a href = "../Protocols/IGListAdapterDelegate.html" > IGListAdapterDelegate< / a >
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< a href = "../Protocols/IGListAdapterMoveDelegate.html" > IGListAdapterMoveDelegate< / a >
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< a href = "../Protocols/IGListAdapterUpdateListener.html" > IGListAdapterUpdateListener< / a >
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< a href = "../Protocols/IGListAdapterUpdaterDelegate.html" > IGListAdapterUpdaterDelegate< / a >
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< a href = "../Protocols/IGListBatchContext.html" > IGListBatchContext< / a >
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< a href = "../Protocols/IGListBindable.html" > IGListBindable< / a >
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< a href = "../Protocols/IGListBindingSectionControllerDataSource.html" > IGListBindingSectionControllerDataSource< / a >
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< a href = "../Protocols/IGListBindingSectionControllerSelectionDelegate.html" > IGListBindingSectionControllerSelectionDelegate< / a >
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< a href = "../Protocols/IGListCollectionContext.html" > IGListCollectionContext< / a >
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< a href = "../Protocols/IGListCollectionViewDelegateLayout.html" > IGListCollectionViewDelegateLayout< / a >
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< a href = "../Protocols/IGListDiffable.html" > IGListDiffable< / a >
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< a href = "../Protocols/IGListScrollDelegate.html" > IGListScrollDelegate< / a >
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< a href = "../Protocols/IGListSingleSectionControllerDelegate.html" > IGListSingleSectionControllerDelegate< / a >
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< a href = "../Protocols/IGListSupplementaryViewSource.html" > IGListSupplementaryViewSource< / a >
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< a href = "../Protocols/IGListTransitionDelegate.html" > IGListTransitionDelegate< / a >
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< a href = "../Protocols/IGListUpdatingDelegate.html" > IGListUpdatingDelegate< / a >
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< a href = "../Type Definitions.html#/c:IGListUpdatingDelegate.h@T@IGListItemUpdateBlock" > IGListItemUpdateBlock< / a >
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< a href = "../Type Definitions.html#/c:IGListUpdatingDelegate.h@T@IGListObjectTransitionBlock" > IGListObjectTransitionBlock< / a >
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< a href = "../Type Definitions.html#/c:IGListUpdatingDelegate.h@T@IGListReloadUpdateBlock" > IGListReloadUpdateBlock< / a >
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< a href = "../Type Definitions.html#/c:IGListSingleSectionController.h@T@IGListSingleSectionCellConfigureBlock" > IGListSingleSectionCellConfigureBlock< / a >
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< a href = "../Type Definitions.html#/c:IGListSingleSectionController.h@T@IGListSingleSectionCellSizeBlock" > IGListSingleSectionCellSizeBlock< / a >
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< a href = "../Type Definitions.html#/c:IGListUpdatingDelegate.h@T@IGListToObjectBlock" > IGListToObjectBlock< / a >
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< a href = "../Type Definitions.html#/c:IGListAdapter.h@T@IGListUpdaterCompletion" > IGListUpdaterCompletion< / a >
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< a href = "../Type Definitions.html#/c:IGListUpdatingDelegate.h@T@IGListUpdatingCompletion" > IGListUpdatingCompletion< / a >
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< a href = "../Functions.html" > Functions< / a >
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< a href = "../Functions.html#/c:@F@IGListDiff" > IGListDiff< / a >
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< a href = "../Functions.html#/c:@F@IGListDiffExperiment" > IGListDiffExperiment< / a >
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< a href = "../Functions.html#/c:@F@IGListDiffPaths" > IGListDiffPaths< / a >
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< a href = "../Functions.html#/c:@F@IGListDiffPathsExperiment" > IGListDiffPathsExperiment< / a >
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< article class = "main-content" >
< section >
< section class = "section" >
< h1 > IGListCollectionContext< / h1 >
< div class = "declaration" >
< div class = "language" >
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< pre class = "highlight objective_c" > < code > < span class = "k" > @protocol< / span > < span class = "nc" > IGListCollectionContext< / span > < span class = "o" > < < / span > < span class = "n" > NSObject< / span > < span class = "o" > > < / span > < / code > < / pre >
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< / div >
< / div >
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< p > The collection context provides limited access to the collection-related information that
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section controllers need for operations like sizing, dequeuing cells, inserting, deleting, reloading, etc.< / p >
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< / section >
< section class = "section task-group-section" >
< div class = "task-group" >
< ul >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(py)containerSize" > < / a >
< a name = "//apple_ref/objc/Property/containerSize" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(py)containerSize" > containerSize< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > The size of the collection view. You can use this for sizing cells.< / p >
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< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > @property< / span > < span class = "p" > (< / span > < span class = "n" > readonly< / span > < span class = "p" > ,< / span > < span class = "n" > nonatomic< / span > < span class = "p" > )< / span > < span class = "n" > CGSize< / span > < span class = "n" > containerSize< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "k" > var< / span > < span class = "nv" > containerSize< / span > < span class = "p" > :< / span > < span class = "kt" > CGSize< / span > < span class = "p" > {< / span > < span class = "k" > get< / span > < span class = "p" > }< / span > < / code > < / pre >
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< / div >
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< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(py)containerInset" > < / a >
< a name = "//apple_ref/objc/Property/containerInset" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(py)containerInset" > containerInset< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > The content insets of the collection view. You can use this for sizing cells.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > @property< / span > < span class = "p" > (< / span > < span class = "n" > readonly< / span > < span class = "p" > ,< / span > < span class = "n" > nonatomic< / span > < span class = "p" > )< / span > < span class = "n" > UIEdgeInsets< / span > < span class = "n" > containerInset< / span > < span class = "p" > ;< / span > < / code > < / pre >
< / div >
< div class = "language" >
< p class = "aside-title" > Swift< / p >
< pre class = "highlight swift" > < code > < span class = "k" > var< / span > < span class = "nv" > containerInset< / span > < span class = "p" > :< / span > < span class = "kt" > UIEdgeInsets< / span > < span class = "p" > {< / span > < span class = "k" > get< / span > < span class = "p" > }< / span > < / code > < / pre >
< / div >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(py)adjustedContainerInset" > < / a >
< a name = "//apple_ref/objc/Property/adjustedContainerInset" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(py)adjustedContainerInset" > adjustedContainerInset< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > The adjusted content insets of the collection view. Equivalent to containerInset under iOS 11.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
< pre class = "highlight objective_c" > < code > < span class = "k" > @property< / span > < span class = "p" > (< / span > < span class = "n" > readonly< / span > < span class = "p" > ,< / span > < span class = "n" > nonatomic< / span > < span class = "p" > )< / span > < span class = "n" > UIEdgeInsets< / span > < span class = "n" > adjustedContainerInset< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "k" > var< / span > < span class = "nv" > adjustedContainerInset< / span > < span class = "p" > :< / span > < span class = "kt" > UIEdgeInsets< / span > < span class = "p" > {< / span > < span class = "k" > get< / span > < span class = "p" > }< / span > < / code > < / pre >
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< / div >
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< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(py)insetContainerSize" > < / a >
< a name = "//apple_ref/objc/Property/insetContainerSize" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(py)insetContainerSize" > insetContainerSize< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > The size of the collection view with content insets applied.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > @property< / span > < span class = "p" > (< / span > < span class = "n" > readonly< / span > < span class = "p" > ,< / span > < span class = "n" > nonatomic< / span > < span class = "p" > )< / span > < span class = "n" > CGSize< / span > < span class = "n" > insetContainerSize< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "k" > var< / span > < span class = "nv" > insetContainerSize< / span > < span class = "p" > :< / span > < span class = "kt" > CGSize< / span > < span class = "p" > {< / span > < span class = "k" > get< / span > < span class = "p" > }< / span > < / code > < / pre >
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< / div >
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< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)containerSizeForSectionController:" > < / a >
< a name = "//apple_ref/objc/Method/-containerSizeForSectionController:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)containerSizeForSectionController:" > -containerSizeForSectionController:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Returns size of the collection view relative to the section controller.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
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< div class = "language" >
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< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > CGSize< / span > < span class = "p" > )< / span > < span class = "nf" > containerSizeForSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > containerSize< / span > < span class = "p" > (< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > CGSize< / span > < / code > < / pre >
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< / div >
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< / div >
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< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > The size of the collection view minus the given section controller’ s insets.< / p >
< / div >
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< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)indexForCell:sectionController:" > < / a >
< a name = "//apple_ref/objc/Method/-indexForCell:sectionController:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)indexForCell:sectionController:" > -indexForCell:sectionController:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Returns the index of the specified cell in the collection relative to the section controller.< / p >
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< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nf" > indexForCell< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > UICollectionViewCell< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > cell< / span >
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< span class = "nf" > sectionController< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > index< / span > < span class = "p" > (< / span > < span class = "k" > for< / span > < span class = "nv" > cell< / span > < span class = "p" > :< / span > < span class = "kt" > UICollectionViewCell< / span > < span class = "p" > ,< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > Int< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > cell< / em >
< / code >
< / td >
< td >
< div >
< p > An existing cell in the collection.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
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< p > The index of the cell or < code > NSNotFound< / code > if it does not exist in the collection.< / p >
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< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)cellForItemAtIndex:sectionController:" > < / a >
< a name = "//apple_ref/objc/Method/-cellForItemAtIndex:sectionController:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)cellForItemAtIndex:sectionController:" > -cellForItemAtIndex:sectionController:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Returns the cell in the collection at the specified index for the section controller.< / p >
< div class = "aside aside-warning" >
< p class = "aside-title" > Warning< / p >
< p > This method may return < code > nil< / code > if the cell is offscreen.< / p >
< / div >
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< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nullable< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionViewCell< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
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< span class = "nf" > cellForItemAtIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span >
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< span class = "nf" > sectionController< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > cellForItem< / span > < span class = "p" > (< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > ,< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionViewCell< / span > < span class = "p" > ?< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the desired cell.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > The collection view cell, or < code > nil< / code > if not found.< / p >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)visibleCellsForSectionController:" > < / a >
< a name = "//apple_ref/objc/Method/-visibleCellsForSectionController:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)visibleCellsForSectionController:" > -visibleCellsForSectionController:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Returns the visible cells for the given section controller.< / p >
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< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSArray< / span > < span class = "o" > < < / span > < span class = "n" > UICollectionViewCell< / span > < span class = "o" > *> < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nf" > visibleCellsForSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > visibleCells< / span > < span class = "p" > (< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "p" > [< / span > < span class = "kt" > UICollectionViewCell< / span > < span class = "p" > ]< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > An array of visible cells, or an empty array if none are found.< / p >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
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< a name = "/c:objc(pl)IGListCollectionContext(im)visibleIndexPathsForSectionController:" > < / a >
< a name = "//apple_ref/objc/Method/-visibleIndexPathsForSectionController:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)visibleIndexPathsForSectionController:" > -visibleIndexPathsForSectionController:< / a >
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< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Returns the visible paths for the given section controller.< / p >
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< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSArray< / span > < span class = "o" > < < / span > < span class = "n" > NSIndexPath< / span > < span class = "o" > *> < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nf" > visibleIndexPathsForSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > visibleIndexPaths< / span > < span class = "p" > (< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "p" > [< / span > < span class = "kt" > IndexPath< / span > < span class = "p" > ]< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
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< div >
< h4 > Return Value< / h4 >
< p > An array of visible index paths, or an empty array if none are found.< / p >
< / div >
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< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
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< a name = "/c:objc(pl)IGListCollectionContext(im)deselectItemAtIndex:sectionController:animated:" > < / a >
< a name = "//apple_ref/objc/Method/-deselectItemAtIndex:sectionController:animated:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)deselectItemAtIndex:sectionController:animated:" > -deselectItemAtIndex:sectionController:animated:< / a >
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< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Deselects a cell in the collection.< / p >
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< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "kt" > void< / span > < span class = "p" > )< / span > < span class = "nf" > deselectItemAtIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span >
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< span class = "nf" > sectionController< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > animated< / span > < span class = "p" > :(< / span > < span class = "n" > BOOL< / span > < span class = "p" > )< / span > < span class = "nv" > animated< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > deselectItem< / span > < span class = "p" > (< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > ,< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "nv" > animated< / span > < span class = "p" > :< / span > < span class = "kt" > Bool< / span > < span class = "p" > )< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
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< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the item to deselect.< / p >
< / div >
< / td >
< / tr >
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< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
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< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > animated< / em >
< / code >
< / td >
< td >
< div >
< p > Pass < code > YES< / code > to animate the change, < code > NO< / code > otherwise.< / p >
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< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< / section >
< / div >
< / li >
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< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)selectItemAtIndex:sectionController:animated:scrollPosition:" > < / a >
< a name = "//apple_ref/objc/Method/-selectItemAtIndex:sectionController:animated:scrollPosition:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)selectItemAtIndex:sectionController:animated:scrollPosition:" > -selectItemAtIndex:sectionController:animated:scrollPosition:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Selects a cell in the collection.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "kt" > void< / span > < span class = "p" > )< / span > < span class = "nf" > selectItemAtIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span >
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< span class = "nf" > sectionController< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > animated< / span > < span class = "p" > :(< / span > < span class = "n" > BOOL< / span > < span class = "p" > )< / span > < span class = "nv" > animated< / span >
< span class = "nf" > scrollPosition< / span > < span class = "p" > :(< / span > < span class = "n" > UICollectionViewScrollPosition< / span > < span class = "p" > )< / span > < span class = "nv" > scrollPosition< / span > < span class = "p" > ;< / span > < / code > < / pre >
< / div >
< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > selectItem< / span > < span class = "p" > (< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > ,< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "nv" > animated< / span > < span class = "p" > :< / span > < span class = "kt" > Bool< / span > < span class = "p" > ,< / span > < span class = "nv" > scrollPosition< / span > < span class = "p" > :< / span > < span class = "kt" > UICollectionViewScrollPosition< / span > < span class = "p" > )< / span > < / code > < / pre >
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< / div >
< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the item to select.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > animated< / em >
< / code >
< / td >
< td >
< div >
< p > Pass < code > YES< / code > to animate the change, < code > NO< / code > otherwise.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > scrollPosition< / em >
< / code >
< / td >
< td >
< div >
< p > An option that specifies where the item should be positioned when scrolling finishes.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< / section >
< / div >
< / li >
2018-04-23 16:27:43 +00:00
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellOfClass:withReuseIdentifier:forSectionController:atIndex:" > < / a >
< a name = "//apple_ref/objc/Method/-dequeueReusableCellOfClass:withReuseIdentifier:forSectionController:atIndex:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellOfClass:withReuseIdentifier:forSectionController:atIndex:" > -dequeueReusableCellOfClass:withReuseIdentifier:forSectionController:atIndex:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Dequeues a cell from the collection view reuse pool.< / p >
< div class = "aside aside-note" >
< p class = "aside-title" > Note< / p >
< p > This method uses a string representation of the cell class as the identifier.< / p >
< / div >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionViewCell< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
< span class = "nf" > dequeueReusableCellOfClass< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > Class< / span > < span class = "p" > )< / span > < span class = "nv" > cellClass< / span >
< span class = "nf" > withReuseIdentifier< / span > < span class = "p" > :(< / span > < span class = "n" > nullable< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > reuseIdentifier< / span >
< span class = "nf" > forSectionController< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > atIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span > < span class = "p" > ;< / span > < / code > < / pre >
< / div >
< div class = "language" >
< p class = "aside-title" > Swift< / p >
< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > dequeueReusableCell< / span > < span class = "p" > (< / span > < span class = "n" > of< / span > < span class = "nv" > cellClass< / span > < span class = "p" > :< / span > < span class = "kt" > AnyClass< / span > < span class = "p" > ,< / span > < span class = "n" > withReuseIdentifier< / span > < span class = "nv" > reuseIdentifier< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ?,< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionViewCell< / span > < / code > < / pre >
< / div >
< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > cellClass< / em >
< / code >
< / td >
< td >
< div >
< p > The class of the cell you want to dequeue.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > reuseIdentifier< / em >
< / code >
< / td >
< td >
< div >
< p > A reuse identifier for the specified cell. This parameter may be < code > nil< / code > .< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the cell.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > A cell dequeued from the reuse pool or a newly created one.< / p >
< / div >
< / section >
< / div >
< / li >
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< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellOfClass:forSectionController:atIndex:" > < / a >
< a name = "//apple_ref/objc/Method/-dequeueReusableCellOfClass:forSectionController:atIndex:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellOfClass:forSectionController:atIndex:" > -dequeueReusableCellOfClass:forSectionController:atIndex:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Dequeues a cell from the collection view reuse pool.< / p >
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< div class = "aside aside-note" >
< p class = "aside-title" > Note< / p >
< p > This method uses a string representation of the cell class as the identifier.< / p >
< / div >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
2018-02-06 23:42:25 +00:00
< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionViewCell< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
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< span class = "nf" > dequeueReusableCellOfClass< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > Class< / span > < span class = "p" > )< / span > < span class = "nv" > cellClass< / span >
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< span class = "nf" > forSectionController< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > atIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span > < span class = "p" > ;< / span > < / code > < / pre >
2016-09-07 22:37:59 +00:00
< / div >
2017-08-23 21:12:05 +00:00
< div class = "language" >
< p class = "aside-title" > Swift< / p >
2018-02-06 23:42:25 +00:00
< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > dequeueReusableCell< / span > < span class = "p" > (< / span > < span class = "n" > of< / span > < span class = "nv" > cellClass< / span > < span class = "p" > :< / span > < span class = "kt" > AnyClass< / span > < span class = "p" > ,< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionViewCell< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > cellClass< / em >
< / code >
< / td >
< td >
< div >
< p > The class of the cell you want to dequeue.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the cell.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
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< p > A cell dequeued from the reuse pool or a newly created one.< / p >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellWithNibName:bundle:forSectionController:atIndex:" > < / a >
< a name = "//apple_ref/objc/Method/-dequeueReusableCellWithNibName:bundle:forSectionController:atIndex:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellWithNibName:bundle:forSectionController:atIndex:" > -dequeueReusableCellWithNibName:bundle:forSectionController:atIndex:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Dequeues a cell from the collection view reuse pool.< / p >
< div class = "aside aside-note" >
< p class = "aside-title" > Note< / p >
< p > This method uses a string representation of the cell class as the identifier.< / p >
< / div >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
2018-02-06 23:42:25 +00:00
< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionViewCell< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
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< span class = "nf" > dequeueReusableCellWithNibName< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > nibName< / span >
< span class = "nf" > bundle< / span > < span class = "p" > :(< / span > < span class = "n" > nullable< / span > < span class = "n" > NSBundle< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > bundle< / span >
< span class = "nf" > forSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > atIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span > < span class = "p" > ;< / span > < / code > < / pre >
2016-11-21 23:36:26 +00:00
< / div >
2017-08-23 21:12:05 +00:00
< div class = "language" >
< p class = "aside-title" > Swift< / p >
2018-02-06 23:42:25 +00:00
< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > dequeueReusableCell< / span > < span class = "p" > (< / span > < span class = "n" > withNibName< / span > < span class = "nv" > nibName< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ,< / span > < span class = "nv" > bundle< / span > < span class = "p" > :< / span > < span class = "kt" > Bundle< / span > < span class = "p" > ?,< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionViewCell< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > nibName< / em >
< / code >
< / td >
< td >
< div >
< p > The name of the nib file.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > bundle< / em >
< / code >
< / td >
< td >
< div >
< p > The bundle in which to search for the nib file. If < code > nil< / code > , this method searches the main bundle.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the cell.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > A cell dequeued from the reuse pool or a newly created one.< / p >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellFromStoryboardWithIdentifier:forSectionController:atIndex:" > < / a >
< a name = "//apple_ref/objc/Method/-dequeueReusableCellFromStoryboardWithIdentifier:forSectionController:atIndex:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)dequeueReusableCellFromStoryboardWithIdentifier:forSectionController:atIndex:" > -dequeueReusableCellFromStoryboardWithIdentifier:forSectionController:atIndex:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Dequeues a storyboard prototype cell from the collection view reuse pool.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
2018-02-06 23:42:25 +00:00
< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionViewCell< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
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< span class = "nf" > dequeueReusableCellFromStoryboardWithIdentifier< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > identifier< / span >
< span class = "nf" > forSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
< span class = "n" > sectionController< / span >
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< span class = "n" > atIndex< / span > < span class = "o" > :< / span > < span class = "p" > (< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "n" > index< / span > < span class = "p" > ;< / span > < / code > < / pre >
< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
2018-02-06 23:42:25 +00:00
< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > dequeueReusableCellFromStoryboard< / span > < span class = "p" > (< / span > < span class = "n" > withIdentifier< / span > < span class = "nv" > identifier< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ,< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionViewCell< / span > < / code > < / pre >
2017-08-23 21:12:05 +00:00
< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > identifier< / em >
< / code >
< / td >
< td >
< div >
< p > The identifier of the cell prototype in storyboard.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the cell.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > A cell dequeued from the reuse pool or a newly created one.< / p >
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< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)dequeueReusableSupplementaryViewOfKind:forSectionController:class:atIndex:" > < / a >
< a name = "//apple_ref/objc/Method/-dequeueReusableSupplementaryViewOfKind:forSectionController:class:atIndex:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)dequeueReusableSupplementaryViewOfKind:forSectionController:class:atIndex:" > -dequeueReusableSupplementaryViewOfKind:forSectionController:class:atIndex:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Dequeues a supplementary view from the collection view reuse pool.< / p >
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< div class = "aside aside-note" >
< p class = "aside-title" > Note< / p >
< p > This method uses a string representation of the view class as the identifier.< / p >
< / div >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionReusableView< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
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< span class = "nf" > dequeueReusableSupplementaryViewOfKind< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > elementKind< / span >
< span class = "nf" > forSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > class< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > Class< / span > < span class = "p" > )< / span > < span class = "nv" > viewClass< / span >
< span class = "nf" > atIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > dequeueReusableSupplementaryView< / span > < span class = "p" > (< / span > < span class = "n" > ofKind< / span > < span class = "nv" > elementKind< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ,< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "kd" > class< / span > < span class = "nv" > viewClass< / span > < span class = "p" > :< / span > < span class = "kt" > AnyClass< / span > < span class = "p" > ,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionReusableView< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > elementKind< / em >
< / code >
< / td >
< td >
< div >
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< p > The kind of supplementary view.< / p >
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< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > viewClass< / em >
< / code >
< / td >
< td >
< div >
< p > The class of the supplementary view.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
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< p > The index of the supplementary view.< / p >
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< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
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< p > A supplementary view dequeued from the reuse pool or a newly created one.< / p >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)dequeueReusableSupplementaryViewFromStoryboardOfKind:withIdentifier:forSectionController:atIndex:" > < / a >
< a name = "//apple_ref/objc/Method/-dequeueReusableSupplementaryViewFromStoryboardOfKind:withIdentifier:forSectionController:atIndex:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)dequeueReusableSupplementaryViewFromStoryboardOfKind:withIdentifier:forSectionController:atIndex:" > -dequeueReusableSupplementaryViewFromStoryboardOfKind:withIdentifier:forSectionController:atIndex:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Dequeues a supplementary view from the collection view reuse pool.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionReusableView< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
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< span class = "nf" > dequeueReusableSupplementaryViewFromStoryboardOfKind< / span > < span class = "p" > :< / span >
< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > elementKind< / span >
< span class = "nf" > withIdentifier< / span > < span class = "p" > :< / span >
< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > identifier< / span >
< span class = "nf" > forSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
< span class = "n" > sectionController< / span >
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< span class = "n" > atIndex< / span > < span class = "o" > :< / span > < span class = "p" > (< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "n" > index< / span > < span class = "p" > ;< / span > < / code > < / pre >
< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > dequeueReusableSupplementaryView< / span > < span class = "p" > (< / span > < span class = "n" > fromStoryboardOfKind< / span > < span class = "nv" > elementKind< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ,< / span > < span class = "n" > withIdentifier< / span > < span class = "nv" > identifier< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ,< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionReusableView< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > elementKind< / em >
< / code >
< / td >
< td >
< div >
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< p > The kind of supplementary view.< / p >
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< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > identifier< / em >
< / code >
< / td >
< td >
< div >
< p > The identifier of the supplementary view in storyboard.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
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< p > The index of the supplementary view.< / p >
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< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > A supplementary view dequeued from the reuse pool or a newly created one.< / p >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)dequeueReusableSupplementaryViewOfKind:forSectionController:nibName:bundle:atIndex:" > < / a >
< a name = "//apple_ref/objc/Method/-dequeueReusableSupplementaryViewOfKind:forSectionController:nibName:bundle:atIndex:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)dequeueReusableSupplementaryViewOfKind:forSectionController:nibName:bundle:atIndex:" > -dequeueReusableSupplementaryViewOfKind:forSectionController:nibName:bundle:atIndex:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Dequeues a supplementary view from the collection view reuse pool.< / p >
< div class = "aside aside-note" >
< p class = "aside-title" > Note< / p >
< p > This method uses a string representation of the view class as the identifier.< / p >
< / div >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
2018-02-06 23:42:25 +00:00
< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > __kindof< / span > < span class = "n" > UICollectionReusableView< / span > < span class = "o" > *< / span > < span class = "p" > )< / span >
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< span class = "nf" > dequeueReusableSupplementaryViewOfKind< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > elementKind< / span >
< span class = "nf" > forSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > nibName< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "n" > NSString< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > nibName< / span >
< span class = "nf" > bundle< / span > < span class = "p" > :(< / span > < span class = "n" > nullable< / span > < span class = "n" > NSBundle< / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > bundle< / span >
< span class = "nf" > atIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > dequeueReusableSupplementaryView< / span > < span class = "p" > (< / span > < span class = "n" > ofKind< / span > < span class = "nv" > elementKind< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ,< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "nv" > nibName< / span > < span class = "p" > :< / span > < span class = "kt" > String< / span > < span class = "p" > ,< / span > < span class = "nv" > bundle< / span > < span class = "p" > :< / span > < span class = "kt" > Bundle< / span > < span class = "p" > ?,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > UICollectionReusableView< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > elementKind< / em >
< / code >
< / td >
< td >
< div >
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< p > The kind of supplementary view.< / p >
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< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller requesting this information.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > nibName< / em >
< / code >
< / td >
< td >
< div >
< p > The name of the nib file.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > bundle< / em >
< / code >
< / td >
< td >
< div >
< p > The bundle in which to search for the nib file. If < code > nil< / code > , this method searches the main bundle.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
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< p > The index of the supplementary view.< / p >
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< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< div >
< h4 > Return Value< / h4 >
< p > A supplementary view dequeued from the reuse pool or a newly created one.< / p >
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< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
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< a name = "/c:objc(pl)IGListCollectionContext(im)invalidateLayoutForSectionController:completion:" > < / a >
< a name = "//apple_ref/objc/Method/-invalidateLayoutForSectionController:completion:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)invalidateLayoutForSectionController:completion:" > -invalidateLayoutForSectionController:completion:< / a >
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< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Invalidate the backing < code > UICollectionViewLayout< / code > for all items in the section controller.< / p >
< div class = "aside aside-note" >
< p class = "aside-title" > Note< / p >
< p > This method can be wrapped in < code > UIView< / code > animation APIs to control the duration or perform without animations. This
will end up calling < code > -[UICollectionView performBatchUpdates:completion:]< / code > internally, so invalidated changes may not be
reflected in the cells immediately.< / p >
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2017-05-12 14:19:12 +00:00
< / div >
2016-09-07 22:37:59 +00:00
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "kt" > void< / span > < span class = "p" > )< / span > < span class = "nf" > invalidateLayoutForSectionController< / span > < span class = "p" > :< / span >
2017-05-12 14:19:12 +00:00
< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > completion< / span > < span class = "p" > :< / span >
< span class = "p" > (< / span > < span class = "n" > nullable< / span > < span class = "kt" > void< / span > < span class = "p" > (< / span > < span class = "o" > ^< / span > < span class = "p" > )(< / span > < span class = "n" > BOOL< / span > < span class = "p" > ))< / span > < span class = "nv" > completion< / span > < span class = "p" > ;< / span > < / code > < / pre >
2016-09-07 22:37:59 +00:00
< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > invalidateLayout< / span > < span class = "p" > (< / span > < span class = "k" > for< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "nv" > completion< / span > < span class = "p" > :< / span > < span class = "p" > ((< / span > < span class = "kt" > Bool< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > Void< / span > < span class = "p" > )?< / span > < span class = "o" > =< / span > < span class = "kc" > nil< / span > < span class = "p" > )< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
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< p > The section controller that needs invalidating.< / p >
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< / div >
< / td >
< / tr >
< tr >
< td >
< code >
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< em > completion< / em >
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< / code >
< / td >
< td >
< div >
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< p > An optional completion block to execute when the updates are finished.< / p >
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< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< / section >
< / div >
< / li >
< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)performBatchAnimated:updates:completion:" > < / a >
< a name = "//apple_ref/objc/Method/-performBatchAnimated:updates:completion:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)performBatchAnimated:updates:completion:" > -performBatchAnimated:updates:completion:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
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< p > Batches and performs many cell-level updates in a single transaction.< / p >
< div class = "aside aside-note" >
< p class = "aside-title" > Note< / p >
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< p > You should make state changes that impact the number of items in your section controller within the updates
block alongside changes on the context object.< / p >
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< / div >
< p > For example, inside your section controllers, you may want to delete < em > and< / em > insert into the data source that backs your
section controller. For example:< / p >
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< pre class = "highlight objective_c" > < code > < span class = "p" > [< / span > < span class = "n" > self< / span > < span class = "p" > .< / span > < span class = "n" > collectionContext< / span > < span class = "nf" > performBatchItemUpdates< / span > < span class = "p" > :< / span > < span class = "o" > ^< / span > < span class = "p" > (< / span > < span class = "n" > id< / span > < span class = "o" > < < / span > < span class = "n" > IGListBatchContext< / span > < span class = "o" > > < / span > < span class = "n" > batchContext< / span > < span class = "o" > > < / span > < span class = "p" > ){< / span >
< span class = "c1" > // perform data source changes inside the update block< / span >
< span class = "p" > [< / span > < span class = "n" > self< / span > < span class = "p" > .< / span > < span class = "n" > items< / span > < span class = "nf" > addObject< / span > < span class = "p" > :< / span > < span class = "n" > newItem< / span > < span class = "p" > ];< / span >
< span class = "p" > [< / span > < span class = "n" > self< / span > < span class = "p" > .< / span > < span class = "n" > items< / span > < span class = "nf" > removeObjectAtIndex< / span > < span class = "p" > :< / span > < span class = "mi" > 0< / span > < span class = "p" > ];< / span >
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< span class = "n" > NSIndexSet< / span > < span class = "o" > *< / span > < span class = "n" > inserts< / span > < span class = "o" > =< / span > < span class = "p" > [< / span > < span class = "n" > NSIndexSet< / span > < span class = "nf" > indexSetWithIndex< / span > < span class = "p" > :[< / span > < span class = "n" > self< / span > < span class = "p" > .< / span > < span class = "n" > items< / span > < span class = "nf" > count< / span > < span class = "p" > ]< / span > < span class = "o" > -< / span > < span class = "mi" > 1< / span > < span class = "p" > ];< / span >
< span class = "p" > [< / span > < span class = "n" > batchContext< / span > < span class = "nf" > insertInSectionController< / span > < span class = "p" > :< / span > < span class = "n" > self< / span > < span class = "nf" > atIndexes< / span > < span class = "p" > :< / span > < span class = "n" > inserts< / span > < span class = "p" > ];< / span >
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< span class = "n" > NSIndexSet< / span > < span class = "o" > *< / span > < span class = "n" > deletes< / span > < span class = "o" > =< / span > < span class = "p" > [< / span > < span class = "n" > NSIndexSet< / span > < span class = "nf" > indexSetWithIndex< / span > < span class = "p" > :< / span > < span class = "mi" > 0< / span > < span class = "p" > ];< / span >
< span class = "p" > [< / span > < span class = "n" > batchContext< / span > < span class = "nf" > deleteInSectionController< / span > < span class = "p" > :< / span > < span class = "n" > self< / span > < span class = "nf" > atIndexes< / span > < span class = "p" > :< / span > < span class = "n" > deletes< / span > < span class = "p" > ];< / span >
< span class = "p" > }< / span > < span class = "nf" > completion< / span > < span class = "p" > :< / span > < span class = "nb" > nil< / span > < span class = "p" > ];< / span >
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< / code > < / pre >
< div class = "aside aside-warning" >
< p class = "aside-title" > Warning< / p >
You < strong > must< / strong > perform data modifications < strong > inside< / strong > the update block. Updates will not be performed
synchronously, so you should make sure that your data source changes only when necessary.
< / div >
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< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "kt" > void< / span > < span class = "p" > )< / span >
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< span class = "nf" > performBatchAnimated< / span > < span class = "p" > :(< / span > < span class = "n" > BOOL< / span > < span class = "p" > )< / span > < span class = "nv" > animated< / span >
< span class = "nf" > updates< / span > < span class = "p" > :(< / span > < span class = "n" > nonnull< / span > < span class = "kt" > void< / span > < span class = "p" > (< / span > < span class = "o" > ^< / span > < span class = "p" > )(< / span > < span class = "n" > id< / span > < span class = "o" > < < / span > < span class = "n" > < a href = "../Protocols/IGListBatchContext.html" > IGListBatchContext< / a > < / span > < span class = "o" > > < / span > < span class = "n" > _Nonnull< / span > < span class = "p" > ))< / span > < span class = "nv" > updates< / span >
< span class = "nf" > completion< / span > < span class = "p" > :(< / span > < span class = "n" > nullable< / span > < span class = "kt" > void< / span > < span class = "p" > (< / span > < span class = "o" > ^< / span > < span class = "p" > )(< / span > < span class = "n" > BOOL< / span > < span class = "p" > ))< / span > < span class = "nv" > completion< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > performBatch< / span > < span class = "p" > (< / span > < span class = "nv" > animated< / span > < span class = "p" > :< / span > < span class = "kt" > Bool< / span > < span class = "p" > ,< / span > < span class = "nv" > updates< / span > < span class = "p" > :< / span > < span class = "kd" > @escaping< / span > < span class = "p" > (< / span > < span class = "kt" > ListBatchContext< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > Void< / span > < span class = "p" > ,< / span > < span class = "nv" > completion< / span > < span class = "p" > :< / span > < span class = "p" > ((< / span > < span class = "kt" > Bool< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "kt" > Void< / span > < span class = "p" > )?< / span > < span class = "o" > =< / span > < span class = "kc" > nil< / span > < span class = "p" > )< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > animated< / em >
< / code >
< / td >
< td >
< div >
< p > A flag indicating if the transition should be animated.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > updates< / em >
< / code >
< / td >
< td >
< div >
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< p > A block with a context parameter to make mutations.< / p >
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< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > completion< / em >
< / code >
< / td >
< td >
< div >
< p > An optional completion block to execute when the updates are finished.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< / section >
< / div >
< / li >
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< li class = "item" >
< div >
< code >
< a name = "/c:objc(pl)IGListCollectionContext(im)scrollToSectionController:atIndex:scrollPosition:animated:" > < / a >
< a name = "//apple_ref/objc/Method/-scrollToSectionController:atIndex:scrollPosition:animated:" class = "dashAnchor" > < / a >
< a class = "token" href = "#/c:objc(pl)IGListCollectionContext(im)scrollToSectionController:atIndex:scrollPosition:animated:" > -scrollToSectionController:atIndex:scrollPosition:animated:< / a >
< / code >
< / div >
< div class = "height-container" >
< div class = "pointer-container" > < / div >
< section class = "section" >
< div class = "pointer" > < / div >
< div class = "abstract" >
< p > Scrolls to the specified section controller in the list.< / p >
< / div >
< div class = "declaration" >
< h4 > Declaration< / h4 >
< div class = "language" >
< p class = "aside-title" > Objective-C< / p >
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< pre class = "highlight objective_c" > < code > < span class = "k" > -< / span > < span class = "p" > (< / span > < span class = "kt" > void< / span > < span class = "p" > )< / span > < span class = "nf" > scrollToSectionController< / span > < span class = "p" > :< / span >
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< span class = "p" > (< / span > < span class = "n" > nonnull< / span > < span class = "n" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "o" > *< / span > < span class = "p" > )< / span > < span class = "nv" > sectionController< / span >
< span class = "nf" > atIndex< / span > < span class = "p" > :(< / span > < span class = "n" > NSInteger< / span > < span class = "p" > )< / span > < span class = "nv" > index< / span >
< span class = "nf" > scrollPosition< / span > < span class = "p" > :(< / span > < span class = "n" > UICollectionViewScrollPosition< / span > < span class = "p" > )< / span > < span class = "nv" > scrollPosition< / span >
< span class = "nf" > animated< / span > < span class = "p" > :(< / span > < span class = "n" > BOOL< / span > < span class = "p" > )< / span > < span class = "nv" > animated< / span > < span class = "p" > ;< / span > < / code > < / pre >
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< / div >
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< div class = "language" >
< p class = "aside-title" > Swift< / p >
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< pre class = "highlight swift" > < code > < span class = "kd" > func< / span > < span class = "nf" > scroll< / span > < span class = "p" > (< / span > < span class = "n" > to< / span > < span class = "nv" > sectionController< / span > < span class = "p" > :< / span > < span class = "kt" > < a href = "../Classes/IGListSectionController.html" > IGListSectionController< / a > < / span > < span class = "p" > ,< / span > < span class = "n" > at< / span > < span class = "nv" > index< / span > < span class = "p" > :< / span > < span class = "kt" > Int< / span > < span class = "p" > ,< / span > < span class = "nv" > scrollPosition< / span > < span class = "p" > :< / span > < span class = "kt" > UICollectionViewScrollPosition< / span > < span class = "p" > ,< / span > < span class = "nv" > animated< / span > < span class = "p" > :< / span > < span class = "kt" > Bool< / span > < span class = "p" > )< / span > < / code > < / pre >
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< / div >
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< / div >
< div >
< h4 > Parameters< / h4 >
< table class = "graybox" >
< tbody >
< tr >
< td >
< code >
< em > sectionController< / em >
< / code >
< / td >
< td >
< div >
< p > The section controller.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > index< / em >
< / code >
< / td >
< td >
< div >
< p > The index of the item in the section controller to which to scroll.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > scrollPosition< / em >
< / code >
< / td >
< td >
< div >
< p > An option that specifies where the item should be positioned when scrolling finishes.< / p >
< / div >
< / td >
< / tr >
< tr >
< td >
< code >
< em > animated< / em >
< / code >
< / td >
< td >
< div >
< p > A flag indicating if the scrolling should be animated.< / p >
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
< / section >
< / div >
< / li >
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< / ul >
< / div >
< / section >
< / section >
< section id = "footer" >
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< p > © 2018 < a class = "link" href = "https://twitter.com/fbOpenSource" target = "_blank" rel = "external" > Instagram< / a > . All rights reserved. (Last updated: 2018-05-01)< / p >
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< p > Generated by < a class = "link" href = "https://github.com/realm/jazzy" target = "_blank" rel = "external" > jazzy ♪♫ v0.9.1< / a > , a < a class = "link" href = "http://realm.io" target = "_blank" rel = "external" > Realm< / a > project.< / p >
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< / section >
< / article >
< / div >
< / body >
< / div >
< / html >
