SCICollectionChangedEventArgs

@interface SCICollectionChangedEventArgs<T> : NSObject <ISCICleanable> {
  NSMutableArray<T> *_newItems;
  NSMutableArray<T> *_oldItems;
}

Defines a class which contains changes of SCIObservableCollection.

Note

E - is the type of elements in the changed SCIObservableCollection.


                        
                        
                        newItems

Gets the list of new items involved in the change.

Objective-C

@property (nonatomic, strong, readonly) NSArray<T> *_Nonnull newItems;

Swift

var newItems: [T] { get }


                        
                        
                        oldItems

Gets the old items which were removed or replaced in this change.

Objective-C

@property (nonatomic, strong, readonly) NSArray<T> *_Nonnull oldItems;

Swift

var oldItems: [T] { get }


                        
                        
                        newIndex

Gets the index at which the change occurred.

Objective-C

@property (nonatomic) NSInteger newIndex;

Swift

var newIndex: Int { get set }


                        
                        
                        oldIndex

Gets the index at which the change occurred.

Objective-C

@property (nonatomic) NSInteger oldIndex;

Swift

var oldIndex: Int { get set }


                        
                        
                        action

Gets the action that caused the event.

Objective-C

@property (nonatomic) SCICollectionChangedAction action;

Swift

var action: SCICollectionChangedAction { get set }