swift UICollectionView使用

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( (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( 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")

    }