如何将UISearchController的searchBar设置为不是tableHeaderView或navigationItem.titleview的视图？ [英] How do I set the UISearchController's searchBar to a view that isn't the tableHeaderView or navigationItem.titleview?

问题描述

我正在尝试在表格滚动时将搜索栏保持在视图中。目前我将它作为标题放在一个tableview中，它可以正常工作，但当你向下走时，搜索栏会滚动离开屏幕。我以为我可以这样做只是修改这个代码示例：

I'm trying to keep the search bar in view as the table scrolls. At the moment I'm placing it as the header in a tableview, and it works as it should, but of course the search bar scrolls off screen as you go down the table. I thought I could do this simply modifying this code sample:

如何在iOS 8中使用UISearchController，其中UISearchBar位于我的导航栏中并具有范围按钮？

searchController = UISearchController(searchResultsController: nil)
searchController.searchResultsUpdater = self
searchController.delegate = self
searchController.searchBar.delegate = self
searchController.dimsBackgroundDuringPresentation = false
searchController.hidesNavigationBarDuringPresentation = false
tableview.tableHeaderView = searchContoller.searchBar // How to put it elsewhere?
//Alternative that also works
navigationItem.titleView = searchController.searchBar

我的想法是采取其他观点并做

The idea was to take some other view and do

otherview = searchController.searchBar

例如UISearchBar的出口，或空白的UIView，或类似的东西。

For instance an outlet to a UISearchBar, or a blank UIView, or something like that.

但如果我这样做，它就不会显示searchBar。它似乎只作为表的标题视图或navigationItem.titleView。

But it doesn't show the searchBar if I do that. It seems to only work as the header view of a table or as a navigationItem.titleView.

我错过了什么？

推荐答案

如果你有一个空白的UIView放在桌面视图上方。

If you have a blank UIView that is placed above the tableview.

让我们假设你有一个出口空白UIView称为 searchContainer 。
然后你可以通过添加以下行将 UISearchController 的搜索栏添加到该视图

let's assume you have an outlet to that blank UIView called searchContainer. Then you can add the search bar of the UISearchController to that view by adding the following line

searchContainer.addSubview(searchController.searchBar)

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