swift 快速创建一些基本控件

1.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)
        tv.translatesAutoresizingMaskIntoConstraints = false
        tv.separatorStyle = .none
        tv.backgroundColor = UIColor.white
        tv.delegate = self
        tv.dataSource = self
        tv.bounces = false
        return tv
    }()

    // MARK: - UITableViewDelegate, UITableViewDataSource
    extension JYJYRtbMineVc:UITableViewDelegate, UITableViewDataSource{
        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            return 1
        }

        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            let cell = tableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath)

            return cell
        }
    }

　　

2.流水布局

    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
    }()

    extension JYShopDetailFigureVc:UICollectionViewDataSource, UICollectionViewDelegate,UICollectionViewDelegateFlowLayout{
        func numberOfSections(in collectionView: UICollectionView) -> Int {
            return 1
        }

        func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
            return 1
        }

        func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: JYAddImageCollectionCellId, for: indexPath) as! JYAddImageCollectionCell
            return cell
        }

        func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        }
    }