本文實例為大家分享了Swift實現廣告欄滑動效果的具體代碼，供大家參考，具體內容如下
創建一個類:PlayCollectionViewController.swift
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//cell重用標識private let reuseIdentifier = "reuseIdentifier"class PlayCollectionViewController: UICollectionViewController { //頁面個數 private let pageCount = 6 //布局對象(自定義布局) 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() //注冊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 }} |
自定義CollectionView的cell
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//MARK: - 在這里我們依然在(PlayCollectionViewController.swift的文件中)自定義collectionViewCellclass NewfearureCell: UICollectionViewCell { //保存圖片索引 private var imageIndex:Int? { didSet { //根據頁碼創建圖片名字(需要每張圖片的名稱只有最有最有一個數不同) 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: 懶加載 private lazy var iconView = UIImageView()} |
繼承UICollectionViewFlowLayout,自定義布局
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private class PlayLayout: UICollectionViewFlowLayout { //重寫系統準備布局的方法 override func prepareLayout() { //設置layout布局 itemSize = UIScreen.mainScreen().bounds.size minimumInteritemSpacing = 0 minimumLineSpacing = 0 scrollDirection = UICollectionViewScrollDirection.Horizontal //設置其他屬性 collectionView?.showsHorizontalScrollIndicator = false collectionView?.bounces = false collectionView?.pagingEnabled = true }} |
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/weixin_34354945/article/details/87150895
