swift3 控件创建

//MARK:- UIScrollView

 let scrollView = UIScrollView()

        scrollView.delegate = target

        scrollView.backgroundColor = UIColor.groupTableViewBackground

        scrollView.showsHorizontalScrollIndicator = false

        scrollView.showsVerticalScrollIndicator = false

        scrollView.isPagingEnabled = true

        scrollView.bounces = false

        //使它能够在设备旋转之后自动适应新的宽度和高度

        scrollView.autoresizingMask = [UIViewAutoresizing.flexibleWidth,UIViewAutoresizing.flexibleHeight]

        scrollView.minimumZoomScale = 0.1

        scrollView.maximumZoomScale = 4.0

        scrollView.zoomScale = 1.0

//        scrollView.minimumZoomScale = max(1, 3)

//MARK:- UICollectionView

var layout = layout

          let  layout = UICollectionViewFlowLayout()

            //            layout?.minimumLineSpacing = 1

            //            layout?.minimumInteritemSpacing = 10

            //            layout?.sectionInset = UIEdgeInsetsMake(10, 5, 10, 5);

          layout?.scrollDirection = direction

        let collection = UICollectionView(frame: CGRect.zero, collectionViewLayout: layout!)

        collection.backgroundColor = UIColor.groupTableViewBackground

        collection.delegate = target

        collection.dataSource = target

//MARK:- UITableView

let table = UITableView.init(frame: CGRect.zero, style: style)

        table.backgroundColor = UIColor.groupTableViewBackground

        table.tableFooterView = UIView()

        table.delegate = target

        table.dataSource = target

        //table.separatorInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)//分割线位置

        //table?.separatorStyle = .none //设置cell 下边线类型

        table.estimatedRowHeight = 45

        table.rowHeight = UITableViewAutomaticDimension