PagingTitleViewConfigure（PagingTitleView 初始化配置类）

PagingTitleView（用于与 PagingContent 联动）

PagingContentScrollView（内部由 UIScrollView 实现）

PagingContentCollectionView（内部由 UICollectionView 实现）

let configure: PagingTitleViewConfigure = PagingTitleViewConfigure()
// PagingTitle
let pagingTitleView = PagingTitleView(frame: frame, titles: titles, delegate: self, configure: configure)
view.addSubview(pagingTitleView)

// PagingContent
let pagingContent: PagingContentScrollView = PagingContentScrollView(frame: frame, parentVC: self, childVCs: childVCs)
pagingContent.delegate = self
view.addSubview(pagingContent)

func pagingTitleView(titleView: PagingTitleView, index: Int) {
    pagingContentView.setPagingContentView(index: index)
}

func pagingContentView(contentView: PagingContentView, progress: CGFloat, currentIndex: Int, targetIndex: Int) {
    pagingTitleView.setPagingTitleView(progress: progress, currentIndex: currentIndex, targetIndex: targetIndex)
}