方法1：创建 的时候注册 layout

/// 时间view    private lazy var timeCollectionV: UICollectionView = {        1.直接注册 并设置好 UICollectionViewFlowLayout        let layout = UICollectionViewFlowLayout()        layout.itemSize = CGSize.init(width: (JY_DEVICE_WIDTH - 60) / 5, height: (JY_DEVICE_WIDTH - 60) / 5)        layout.minimumLineSpacing = 10        layout.minimumInteritemSpacing = 0        layout.sectionInset = UIEdgeInsetsMake(0, 0, 0, 0)                let collectionV = UICollectionView(frame: CGRect.zero, collectionViewLayout: layout)        collectionV.register(UINib.init(nibName: "JYChooseShopTimeCollectionCell", bundle: nil), forCellWithReuseIdentifier: "JYChooseShopTimeCollectionCell")        collectionV.delegate = self        collectionV.dataSource = self        collectionV.backgroundColor = UIColor.white        return collectionV    }()

　　2.在代理里面设置UICollectionViewFlowLayout

extension JYBespeakStylistAndTimeVc: UICollectionViewDataSource, UICollectionViewDelegate,UICollectionViewDelegateFlowLayout{

//最小行间距    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {        return 10;    }    //每个分区的内边距    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {        return UIEdgeInsetsMake(0, 0, 0, 0);    }    //item 的尺寸    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {        let sizeItem : CGFloat = CGFloat(JY_DEVICE_WIDTH - 60) / 5        return CGSize.init(width: sizeItem, height: sizeItem)    }

}

　　

3.其他设置

 

// 一个分区几行    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {        return 60    }        //每个cell    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {                let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "JYChooseShopTimeCollectionCell", for: indexPath) as! JYChooseShopTimeCollectionCell        //        cell.configModel(model: self.secmentControlTuple.timeArr![indexPath.row])        return cell    }

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

        

        DDLOG(message: "点击 item")

    }