小编Zuh*_*eed的帖子

在导航控制器中使用大标题导航栏和搜索栏时出现问题，当我尝试拉动以刷新 tableview 时，会在结束刷新时显示突然行为。

var searchController : UISearchController!
self.searchController = UISearchController(searchResultsController: nil)

        self.tableView.refreshControl = self.refreshControl

        self.navigationItem.searchController = searchController
        self.navigationItem.hidesSearchBarWhenScrolling = false

        self.definesPresentationContext = true
        self.searchController.obscuresBackgroundDuringPresentation = false

        self.searchController.delegate = self
        self.searchController.searchBar.delegate = self
        self.searchController.searchResultsUpdater = self

最后刷新