MFPagingView

效果图

使用（详细使用，请参考Demo)

        ///pageTitleView
        let config = MFPageTitleViewConfig()
        let pageTitleView = MFPageTitleView(frame: CGRect(x: 0, y: navHeight, width: SCREEN_WIDTH, height: 41), titles: titles, config: config)
        pageTitleView.pageTitleViewDelegate = self
        view.addSubview(pageTitleView)
        
        ///pageContentView
        let pageContentView = MFPageContentView(frame: CGRect(x: 0, y: pageContentViewY, width: SCREEN_WIDTH, height: SCREEN_HEIGHT-pageContentViewY), parentVC: self, childVCs: childControllers)
        pageContentView.pageContentViewDelegate = self
        view.addSubview(pageContentView)

• PageTitleViewDelegate

    func selectedIndexInPageTitleView(pageTitleView: MFPageTitleView, selectedIndex: Int) {
        self.pageContentView.setPageContentViewCurrentIndex(currentIndex: selectedIndex)
    }

• PageContentViewDelegate

    func pageContentViewScroll(progress: CGFloat, originalIndex: Int, targetIndex: Int) {
        self.pageTitleView.setPageTitleView(progress: progress, originalIndex: originalIndex, targetIndex: targetIndex)
    }