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

1.创建tableview

    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

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
}()