隐藏搜索显示控制器的搜索栏 [英] Hide search bar of search display controller

问题描述

我将搜索栏和显示控制器拖动到视图控制器，并将其放在轮廓的底部.

I dragged a search bar and display controller to a view controller and placed it at the bottom of the outline.

然后我将其设置为显示在导航栏中，并在viewdidload中显示以下行.一切正常.

I then set it to display in navigation bar with following line in viewdidload. All that works.

self.searchDisplayController.displaysSearchBarInNavigationBar = true;

但是，我想首先将其隐藏，而vewdidload中的以下行没有任何作用.

However, I want to hide it initially, and the following line in vewdidload is not having any effect.

self.searchDisplayController.searchBar.hidden = true;

谁能建议该怎么做?

提前感谢您的任何建议.

Thanks in advance for any suggestions.

我想我发现您不能同时具有searchBar.hidden = true和displaySearchBarInNavigationBar.这对我来说很好，因为我只想要一个.因此，我尝试将这两种情况分开.

I think I have figured out that you cannot have searchBar.hidden = true and displaysSearchBarInNavigationBar at the same time. Which is fine by me as I only want one or the other. So I tried separating the two cases.

我认为

self.searchDisplayController.searchBar.hidden = true;

如果单独运行，它确实可以工作.

This does work if by itself.

然后，我有一个连接到操作方法的搜索按钮，如下所示:

Then I have a search button wired to an action method as follows:

 - (IBAction)searchButtonPressed:(id)sender {
    NSLog(@"search button pressed");
    self.searchDisplayController.searchBar.hidden = false;
    self.searchDisplayController.displaysSearchBarInNavigationBar = true;
    self.searchDisplayController.searchBar.showsCancelButton = YES;
}

但是，尽管我从日志中看到该方法已被调用，但它并未取消隐藏搜索栏.也许这是委托人的问题，但仍在寻找解决方案.

However, while I can see from the log that the method is called, it does not unhide the search bar. Perhaps it is delegate issue but still looking for solutions.

推荐答案

做到这一点

1. 从情节提要中将插座添加到searchBar
2. 然后，您可以使用出口标识符通过添加以下行来隐藏searchBar

searchBar.hidden = true

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