swift - 快速代码块 - 创建 tableview等一些控件 基本属性

1.创建tableview

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private lazy var cellId = "cellId" fileprivate lazy var tv : UITableView = {     let tv = UITableView(frame: CGRect.zero, style: UITableView.Style.grouped)     tv.register(UITableViewCell.self, forCellReuseIdentifier: cellId)//注册cell     tv.translatesAutoresizingMaskIntoConstraints = false// VFL     tv.showsVerticalScrollIndicator = false//垂直滚动指示器     tv.showsHorizontalScrollIndicator = false//水平滚动指示器     tv.delegate = self     tv.dataSource = self     tv.bounces = false//弹簧效果     tv.separatorStyle = .none//分割线     tv.estimatedRowHeight = 0//预设行高     tv.estimatedSectionFooterHeight = 0//预设分区头高度     tv.estimatedSectionHeaderHeight = 0     tv.backgroundColor = UIColor.white     if #available(iOS 11.0, *) {         tv.contentInsetAdjustmentBehavior = UIScrollView.ContentInsetAdjustmentBehavior.never     }     return tv }()

　　

2.UICollectionView

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let JYLoadImageCollectionCellId = "JYLoadImageCollectionCell" let JYAddImageCollectionCellId = "JYAddImageCollectionCell" private lazy var collectionView: UICollectionView = {     let layout = UICollectionViewFlowLayout()     let itemWidth = CGFloat(Int((JY_DEVICE_WIDTH - 10 * 4)/3))     let itemHeight = itemWidth     layout.itemSize = CGSize(width: itemWidth, height: itemHeight)     layout.minimumLineSpacing = 0     layout.minimumInteritemSpacing = 0     layout.sectionInset = UIEdgeInsets(top: 0, left: 10, bottom: 0, right: 10)           let collectionV = UICollectionView(frame: CGRect.zero, collectionViewLayout: layout)     collectionV.translatesAutoresizingMaskIntoConstraints = false     //        collectionV.register(UINib.init(nibName: "JYChooseShopTimeCollectionCell", bundle: nil), forCellWithReuseIdentifier: "JYChooseShopTimeCollectionCell")     collectionV.register(JYLoadImageCollectionCell.classForCoder(), forCellWithReuseIdentifier: JYLoadImageCollectionCellId)     collectionV.register(JYAddImageCollectionCell.classForCoder(), forCellWithReuseIdentifier: JYAddImageCollectionCellId)     collectionV.delegate = self     collectionV.dataSource = self     collectionV.backgroundColor = .white     collectionV.showsHorizontalScrollIndicator = false     collectionV.showsVerticalScrollIndicator = false           return collectionV }()