lazy var segmentView: TFSegmentView = {
    let sv = TFSegmentView(frame: CGRect.init(x: 0, y: 60, width: UIScreen.main.bounds.width, height: 60), titles: titleArray)
    sv.delegate = self
    sv.delegateScrollView = scrollView
    sv.titleStyle = .default //The text color of item change without animate 文字颜色直接变
    sv.indicatorStyle = .default //Subscript without tensile change 下标无拉伸变化
    sv.selectFontScale = 1.0 //Text scaling ratio 文字缩放比例（0.0~1.0）
    return sv
}()

lazy var segmentView: TFSegmentView = {
    let sv = TFSegmentView(frame: CGRect.init(x: 0, y: segmentView1.frame.maxY+2, width: UIScreen.main.bounds.width, height: 60), titles: titleArray)
    sv.delegate = self
    sv.delegateScrollView = scrollView
    sv.titleStyle = .gradual //Text color gradient 文字颜色渐变
    sv.indicatorStyle = .followText //Subscript varies with text length 下标随文本长度变化
    return sv
}()

lazy var segmentView: TFSegmentView = {
    let sv = TFSegmentView(frame: CGRect.init(x: 0, y: segmentView2.frame.maxY+2, width: UIScreen.main.bounds.width, height: 60), titles: titleArray)
    sv.delegate = self
    sv.delegateScrollView = scrollView
    sv.titleStyle = .fill //Text color progress fill 文字颜色进度填充
    sv.indicatorStyle = .stretch //Subscript varies with stretch下标拉伸变化
    return sv
}()

lazy var segmentView: TFSegmentView = {
    let sv = TFSegmentView(frame: CGRect.init(x: 0, y: segmentView3.frame.maxY+2, width: UIScreen.main.bounds.width, height: 60), titles: titleArray)
    sv.delegate = self
    sv.delegateScrollView = scrollView
    sv.titleStyle = .fill //Text color progress fill 文字颜色进度填充
    sv.indicatorStyle = .followTextStretch // Subscript varies with text length and stretch下标随文本长度变化 且 拉伸变化
    return sv
}()

/**Background color, default white / 背景颜色, 默认白色*/
public var backColor: UIColor = UIColor.white
/**Item maximum display, default 8 / Item最大显示数, 默认8*/
public var maxItemCount: NSInteger = 8
/**Item width, split without setting / Item宽度, 不设置则平分*/
public var tabItemWidth: CGFloat = 0.0
/**Text effect of item / Item的文字效果*/
public var titleStyle: TFTitleTransformStyle = .default
/**Selected font color / 选中字体颜色*/
public var selectedColor: UIColor = UIColor.red
/**UnSelected font color / 未选中字体颜色*/
public var unSelectedColor: UIColor = UIColor.black
/**Text font size, default 18 / 默认字体大小, 默认18*/
public var titleFont: UIFont = UIFont.systemFont(ofSize: 18)
/**UnSelected font reduction, default is 0.8(0~1) / 未选中字体缩小比例，默认是0.8（0~1）*/
public var selectFontScale: CGFloat = 0.8
/**Subscript effect / 下标效果*/
public var indicatorStyle: TFIndicatorWidthStyle = .default
/**Subscript height, default 2.0 / 下标高度，默认是2.0*/
public var indicatorHeight: CGFloat = 2.0
/**Subscript width, default is 30 / 下标宽度，默认是30*/
public var indicatorWidth: CGFloat = 30.0
/**Bottom Secant Color, default clear / 底部分割线颜色, 默认透明*/
public var separatorColor: UIColor = UIColor.clear

extension ViewController: UIScrollViewDelegate {
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        segmentView.scrollViewDidScroll(scrollView)
    }
    func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
        segmentView.scrollViewDidEndDecelerating(scrollView)
    }
    func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
        segmentView.scrollViewDidEndScrollingAnimation(scrollView)
    }
}