创建一个类:PlayCollectionViewController.swift

//cell重用标识private let reuseIdentifier = "reuseIdentifier"class PlayCollectionViewController: UICollectionViewController { //页面个数 private let pageCount = 6 //布局对象(自定义布局) private var layout: UICollectionViewFlowLayout = PlayLayout() init() {  super.init(collectionViewLayout: layout) } required init?(coder aDecoder: NSCoder) {  fatalError("init(coder:) has not been implemented") } override func viewDidLoad() {  super.viewDidLoad()  //注册cell  collectionView?.registerClass(NewfearureCell.self, forCellWithReuseIdentifier: reuseIdentifier) } //MARK: - UICollectionDataSource override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {  return pageCount } override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {  let cell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath) as! NewfearureCell  cell.imageIndex = indexPath.item  return cell }}

自定义CollectionView的cell

//MARK: - 在这里我们依然在(PlayCollectionViewController.swift的文件中)自定义collectionViewCellclass NewfearureCell: UICollectionViewCell { //保存图片索引 private var imageIndex:Int? {  didSet {   //根据页码创建图片名字(需要每张图片的名称只有最有最有一个数不同)   iconView.image = UIImage(named: "image_\(imageIndex!)")  } } override init(frame: CGRect) {  super.init(frame: frame)  //初始化UI  setupUI() } required init?(coder aDecoder: NSCoder) {  fatalError("init(coder:) has not been implemented") } private func setupUI() {  //添加子控件到contentView  contentView.addSubview(iconView)  //布局子控件位置(填充屏幕)  iconView.xmg_Fill(contentView) } //MARK: 懒加载 private lazy var iconView = UIImageView()}

继承UICollectionViewFlowLayout,自定义布局

private class PlayLayout: UICollectionViewFlowLayout { //重写系统准备布局的方法 override func prepareLayout() {  //设置layout布局  itemSize = UIScreen.mainScreen().bounds.size  minimumInteritemSpacing = 0  minimumLineSpacing = 0  scrollDirection = UICollectionViewScrollDirection.Horizontal  //设置其他属性  collectionView?.showsHorizontalScrollIndicator = false  collectionView?.bounces = false  collectionView?.pagingEnabled = true }}