JMWaterFlow

#####JMWaterFlow 使用 Swift 语言对常见的瀑布流布局做了封装。它使用UICollectionView来布局瀑布流，通过自定义layout布局来实现，简单易用。

可自定义布局参数:

####使用方式

构造方法

     let layout = WaterFlowViewLayout()
    //构造方法
    init()
    {
        super.init(collectionViewLayout: layout)
    }

初始化

        let Margin:CGFloat = 8;
        /// 瀑布流四周的间距
        layout.sectionInsert = UIEdgeInsets(top: Margin, left: Margin, bottom: Margin, right: Margin)
        /// 瀑布流列数
        layout.column = 5
        /// 列间距
        layout.columnMargin = Margin
        /// 行间距
        layout.rowMargin = Margin
        // 设置代理
        layout.delegate = self

实现代理

//MARK: 代理方法
    /// 返回每个cell的高度,需要heightForWidth等比例缩放后的
    func waterFlowViewLayout(waterFlowViewLayout: WaterFlowViewLayout, heightForWidth: CGFloat, atIndexPath: NSIndexPath) -> CGFloat
    {
        return CGFloat(100 + arc4random_uniform(50))//测试使用随机值
    }
    ///返回cell的数量
    override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int
    {
        return 500//测试
    }
    //返回cell
    override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell
    {
        let cell = collectionView.dequeueReusableCellWithReuseIdentifier(ReuseIdentifier, forIndexPath: indexPath)
        cell.backgroundColor = UIColor.randomColor()//测试使用随机色
        return cell
    }

####个人中文博客 ┑(￣Д ￣)┍ http://www.jianshu.com/users/53845c6b43dc/top_articles

License

JimmyPeng4iOS/JMWaterFlow

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