mike-ferenduros

extension UICollectionView {
	///Perform batch update based on before and after arrays
	///An array must not contain duplicate values
	func batchUpdate<T: Equatable>(section: Int, from oldData: [T], to newData: [T], completion: ((Bool) -> Void)? = nil) {
		performBatchUpdates({
			let deletions = oldData.indices.filter { !newData.contains(oldData[$0]) }
			deleteItems(at: deletions.map { IndexPath(item: $0, section: section) })
			
			let insertions = newData.indices.filter { !oldData.contains(newData[$0]) }
			insertItems(at: insertions.map { IndexPath(item: $0, section: section) })

mike-ferenduros

//
//  Cardboard.swift
//
//  Created by Michael Ferenduros on 27/09/2016.
//  Copyright © 2016 Mike Ferenduros. All rights reserved.
//

import Foundation

mike-ferenduros

extension Int64 : _ObjectiveCBridgeable
{
    public init(_ number: NSNumber)
    {
        self.init(number.longLongValue)
    }

    public func _bridgeToObjectiveC() -> NSNumber
    {
        return NSNumber(longLong: self)