How To Use UICollectionView In Swift Ios

=> Here Given One of Example UIColletionView:

//  AlbumViewController.swift
//  UICollectionView+Swift
import UIKit

let reuseIdentifier = "Cell"

class AlbumViewController: UICollectionViewController {

    var Albums = Array<String>()
  
    @IBAction func EditAlbumPressed(sender : AnyObject) {
      
        if(self.navigationItem.rightBarButtonItem?.title == "Edit"){
      
            self.navigationItem.rightBarButtonItem?.title = "Done"
          
            for item in self.collectionView!.visibleCells() as [AlbumCell] {
              
                var indexpath : NSIndexPath = self.collectionView!.indexPathForCell(item as AlbumCell)!
                var cell : AlbumCell = self.collectionView!.cellForItemAtIndexPath(indexpath) as AlbumCell
              
                //Profile Picture
                //var img : UIImageView = cell.viewWithTag(100) as UIImageView
                //img.image = UIImage(named: "q.png") as UIImage
              
                //Close Button
                var close : UIButton = cell.viewWithTag(102) as UIButton
                close.hidden = false
            }
        } else {
            self.navigationItem.rightBarButtonItem?.title = "Edit"
            self.collectionView?.reloadData()
        }
    }
  
    override func viewDidLoad() {
        super.viewDidLoad()
      
        Albums = ["a.png",  "b.png", "c.png", "d.png", "e.png", "f.png", "g.png", "h.png",
        "i.png", "j.png", "k.png", "l.png", "m.png"]
    }

 

    // #pragma mark UICollectionViewDataSource
  
    override func numberOfSectionsInCollectionView(collectionView: UICollectionView?) -> Int {
        return 1
    }

      override func collectionView(collectionView: UICollectionView?,
      numberOfItemsInSection section: Int) -> Int {
        return Albums.count
    }
  
      override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath:
       NSIndexPath)  -> UICollectionViewCell {
        /*
        We can use multiple way to create a UICollectionViewCell.
        */
        //1.
        //We can use Reusablecell identifier with custom UICollectionViewCell
      
        /*
        let cell = collectionView!.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath)
         as UICollectionViewCell
      
        var AlbumImage : UIImageView = cell.viewWithTag(100) as UIImageView
        AlbumImage.image = UIImage(named: Albums[indexPath.row])
        */
      
      
      
        //2.
        //here Created a Class file for UICollectionViewCell
      
        let cell : AlbumCell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell",
        forIndexPath: indexPath) as AlbumCell
        cell.backgroundView = UIImageView(image: UIImage(named: "photo-frame.png")) as UIView
        cell.AlbumImage?.image = UIImage(named: Albums[indexPath.row])
      
        if self.navigationItem.rightBarButtonItem!.title == "Edit" {
            cell.CloseImage?.hidden = true
        } else {
            cell.CloseImage?.hidden = false
        }
      
        //Layer property in Objective C =>
         "http://iostutorialstack.blogspot.in/2014/04/how-to-assign-custom-tag-or-value-to.html"
        cell.CloseImage?.layer.setValue(indexPath.row, forKey: "index")
      
      
        cell.CloseImage?.addTarget(self, action: "deletePhoto:", forControlEvents: UIControlEvents.TouchUpInside)
        return cell
    }
  
    func deletePhoto(sender:UIButton) {
        let i : Int = (sender.layer.valueForKey("index")) as Int
        Albums.removeAtIndex(i)
        self.collectionView!.reloadData()
    }
}
//  AlbumCell.swift
//  UICollectionView+Swift


import UIKit

class AlbumCell: UICollectionViewCell {
    @IBOutlet var AlbumImage : UIImageView?
    @IBOutlet var CloseImage : UIButton?
  
}
//  ProfileController.swift
//  UICollectionView+Swift

import UIKit
import QuartzCore

 class ProfileController: UIViewController {

    @IBOutlet var BannerImage : UIImageView!
    @IBOutlet var ProfileImage : UIImageView!
  
     override func viewDidLoad() {
        super.viewDidLoad()
      
        //1. Circule profile picture
        //var layer : CALayer = self.ProfileImage?.layer
        self.ProfileImage.layer.cornerRadius = self.ProfileImage.frame.size.width / 2
        self.ProfileImage.layer.borderWidth = 3.5
        self.ProfileImage.layer.borderColor = UIColor.whiteColor().CGColor
        self.ProfileImage.clipsToBounds = true
      
      
      
        //2. Rectangle Profile shape
        /*
        var layer:CALayer = self.ProfileImage.layer!
        layer.shadowPath = UIBezierPath(rect: layer.bounds).CGPath
        layer.shouldRasterize = true;
        layer.rasterizationScale = UIScreen.mainScreen().scale
        layer.borderColor = UIColor.whiteColor().CGColor
        layer.borderWidth = 2.0
        layer.shadowColor = UIColor.grayColor().CGColor
        layer.shadowOpacity = 0.4
        layer.shadowOffset = CGSizeMake(1, 3)
        layer.shadowRadius = 1.5
        self.ProfileImage.clipsToBounds = false
        */
      
        // Do any additional setup after loading the view.
    }

}

//  UTILITY.swift
//  UICollectionView+Swift

=> Here Used One Of The Random Method Class Whereto take Images randomly:-

  import UIKit

  class UTILITY: NSObject {

    class func getRandomNumberBetween (From: Int , To: Int) -> Int {
        return From + Int(arc4random_uniform(UInt32(To - From + 1)))
    }
  
}