Question, How to using load more bottom scroll about twitterprofile HOT 6 CLOSED

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let vc = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "BottomViewController") as! BottomViewController
        let vc1 = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "BottomViewController") as! BottomViewController
        let vc2 = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "BottomViewController") as! BottomViewController
        let vc3 = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "BottomViewController") as! BottomViewController

    // MARK: - PagerTabStripDataSource
    override func viewControllers(for pagerTabStripController: PagerTabStripViewController) -> [UIViewController] {
        vc.pageIndex = 0
        vc.pageTitle = "Tweets"
        vc.count = 10
        let child_1 = vc
        
        vc1.pageIndex = 1
        vc1.pageTitle = "Tweets & replies"
        vc1.count = 1
        let child_2 = vc1
        
        vc2.pageIndex = 2
        vc2.pageTitle = "Media"
        vc2.count = 10
        let child_3 = vc2
        
        vc3.pageIndex = 3
        vc3.pageTitle = "Likes"
        vc3.count = 2
        let child_4 = vc3

        return [child_1, child_2, child_3, child_4]
    }

 func tp_scrollViewDidLoad(_ scrollView: UIScrollView) {
   // use this scrollView to add refreshFooter. 
    scrollView.configRefreshFooter(container:self) { [weak self] in }
}