WolfSegment

一种替代UISegmentedControl的滑动方式，模仿谷歌产品/网易新闻中使用的分段控制的风格。

使用简单 欢迎随时需求完善

    let wolfSegment = WolfSegmentBar.init(frame: CGRect.init(x: 0, y: 100, width: view.frame.width, height: 40),
                                          titles: ["Apple Store", "头条", "世界杯", "测试长文字", "新时代", "娱乐", "体育", "要闻", "段子", "微资讯", "本地", "科技", "Apple Store"],
                                          config: WolfButtonConfig.default())
    view.addSubview(wolfSegment)
    
    wolfSegment.selectIndex = { index in
        print(index)
    }