swift 建立UICollectionView

//

//  CollectionViewController.swift

//  tab

//

//  Created by su on 15/12/8.

//  Copyright © 2015年 tian. All rights reserved.

//

 

import UIKit

 

class CollectionViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {

    

    var collectionView: UICollectionView!

    

    override func viewDidLoad() {

        super.viewDidLoad()

        

        let flowLayout = UICollectionViewFlowLayout()

        flowLayout.itemSize = CGSize(width: (Tools().SCREEN_WIDTH - 30) / 3, height: (Tools().SCREEN_WIDTH - 30) / 3)

        

        collectionView = UICollectionView(frame: self.view.bounds, collectionViewLayout: flowLayout)

        collectionView.backgroundColor = UIColor.whiteColor()

        collectionView.registerNib(UINib(nibName: "CollectionViewCell", bundle: nil), forCellWithReuseIdentifier: "CollectionViewCell")

        collectionView.delegate = self

        collectionView.dataSource = self

        self.view.addSubview(collectionView)

        

        

        

        

    }

    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

        return 10

    }

    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

       let cell = collectionView.dequeueReusableCellWithReuseIdentifier("CollectionViewCell", forIndexPath: indexPath)

        

        return cell

        

 

    }

 

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

    

 

    /*

    // MARK: - Navigation

 

    // In a storyboard-based application, you will often want to do a little preparation before navigation

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

        // Get the new view controller using segue.destinationViewController.

        // Pass the selected object to the new view controller.

    }

    */

 

}