$ gem install cocoapods

You can use 1.0.3

Please use 1.0.2

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
use_frameworks!

target '<Your Target Name>' do
	pod 'ASCollectionView', '1.0.1'
end

$ pod install

class ViewController: UIViewController, ASCollectionViewDataSource, ASCollectionViewDelegate {
...

override func viewDidLoad() {
    super.viewDidLoad()
    collectionView.registerNib(UINib(nibName: collectionElementKindHeader, bundle: nil), forSupplementaryViewOfKind: collectionElementKindHeader, withReuseIdentifier: "header")
    collectionView.delegate = self
    collectionView.asDataSource = self
}

// MARK: ASCollectionViewDataSource

func numberOfItemsInASCollectionView(asCollectionView: ASCollectionView) -> Int {
    return numberOfItems
}

func collectionView(asCollectionView: ASCollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
    let gridCell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! GridCell
    gridCell.label.text = NSString(format: "Item %ld ", indexPath.row) as String
    gridCell.imageView.image = UIImage(named: NSString(format: "image-%ld", indexPath.row % 10) as String)
    return gridCell
}

func collectionView(asCollectionView: ASCollectionView, parallaxCellForItemAtIndexPath indexPath: NSIndexPath) -> ASCollectionViewParallaxCell {
    let parallaxCell = collectionView.dequeueReusableCellWithReuseIdentifier("parallaxCell", forIndexPath: indexPath) as! ParallaxCell
    parallaxCell.label.text = NSString(format: "Item %ld ", indexPath.row) as String
    parallaxCell.updateParallaxImage(UIImage(named: NSString(format: "image-%ld", indexPath.row % 10) as String)!)
    return parallaxCell
}

func collectionView(asCollectionView: ASCollectionView, headerAtIndexPath indexPath: NSIndexPath) -> UICollectionReusableView {
    let header = collectionView.dequeueReusableSupplementaryViewOfKind(ASCollectionViewElement.Header, withReuseIdentifier: "header", forIndexPath: indexPath)
    return header
}

func loadMoreInASCollectionView(asCollectionView: ASCollectionView) {
    if numberOfItems > 30 {
        collectionView.enableLoadMore = false
        return
    }
    numberOfItems += 10
    collectionView.loadingMore = false
    collectionView.reloadData()
}

class GridCell: UICollectionViewCell {

    @IBOutlet var label: UILabel!
    @IBOutlet var imageView: UIImageView!

}

class ParallaxCell: ASCollectionViewParallaxCell {

	@IBOutlet var label: UILabel!

}

Copyright (c) 2016 Abdullah Selek

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Inspired by Airbnb and ninjaprox. Improved and all coded in new programming 
language Swift.