entityMap|blocks|key|5rg28|text|您需要实现UISearchBarDelegate。完成后，使用：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|602dt|-+(void)searchBarCancelButtonClicked:(UISearchBar+*)searchBar|code-block|syntax|javascript|2a5qe|通知代理已点击取消按钮。|7rj9g|9nt5v|然后使用：|alehn|[self+searchBarCancelButtonClicked:yourSearchBar];^0|5|J|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|S|9|@$A|T|B|U|C|D]]|E|@]|F|$]]|$2|G|4|H|6|I|8|V|9|@]|E|@]|F|$J|K]]|$2|L|4|M|6|7|8|W|9|@]|E|@]|F|$]]|$2|N|4|-4|6|7|8|X|9|@]|E|@]|F|$]]|$2|O|4|P|6|7|8|Y|9|@]|E|@]|F|$]]|$2|Q|4|R|6|I|8|Z|9|@]|E|@]|F|$J|K]]]]

You need to implement the <code>UISearchBarDelegate</code>. Once you've done that, use:

<pre><code>- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
</code></pre>

<blockquote>
 Tells the delegate that the cancel button was tapped.
</blockquote>

Then use:

<pre><code>[self searchBarCancelButtonClicked:yourSearchBar];
</code></pre>

entityMap|blocks|key|1rabm|text|对于使用搜索显示控制器的视图控制器，您可以设置|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1ao1n|self.searchDisplayController.active+=+NO;
//+or:
[self.searchDisplayController+setActive:NO+animated:YES];|code-block|syntax|javascript|19j4k|若要关闭搜索界面，请执行以下操作。^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|J|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|K|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|L|9|@]|A|@]|B|$]]]]

For a view controller using a search display controller, you can set

<pre><code>self.searchDisplayController.active = NO;
// or:
[self.searchDisplayController setActive:NO animated:YES];
</code></pre>

to dismiss the search interface.

entityMap|blocks|key|4fso4|text|对于新的UISearchController(+2014年在iOS+8中引入)您可以调用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5lk4o|[self.searchController+setActive:FALSE];|code-block|syntax|javascript|3a2ln|或者|1svmo|self.searchController.active+=+FALSE;|euc03|(没有动画标志，我发现它总是有动画效果。)^0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|N|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|O|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|P|9|@]|A|@]|B|$]]|$2|J|4|K|6|E|8|Q|9|@]|A|@]|B|$F|G]]|$2|L|4|M|6|7|8|R|9|@]|A|@]|B|$]]]]

For the new <a href="https://developer.apple.com/library/prerelease/ios/documentation/UIKit/Reference/UISearchController/index.html">UISearchController</a> (introduced in 2014 with iOS 8) you can call:

<pre><code>[self.searchController setActive:FALSE];
</code></pre>

or

<pre><code>self.searchController.active = FALSE;
</code></pre>

(No flag for animation, I've found it always animates.)

entityMap|blocks|key|9f3db|text|至于iOS+8，UISearchController若要以编程方式实现cancel按钮操作，请使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|a79h5|[self.searchController+setActive:NO];|code-block|syntax|javascript^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|H|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|I|9|@]|A|@]|B|$F|G]]]]

As for iOS 8, <code>UISearchController</code> is used, to achieve the cancel button action programmatically, 
Use:

<pre><code>[self.searchController setActive:NO]; 
</code></pre>

entityMap|blocks|key|27dg6|text|对于Swift+4.2版本，您可以编写以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|33aau|searchController?.isActive+=+false|code-block|syntax|javascript^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|H|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|I|9|@]|A|@]|B|$F|G]]]]

For Swift 4.2 version you can write as the following code:

<pre><code>searchController?.isActive = false
</code></pre>

entityMap|blocks|key|cqtt3|text|self.navigationItem.searchController?.isActive+=+false+//+above+iOS+8.0
//+or:++++
self.searchDisplayController.active+=+NO;+//+was+deprecated+in+iOS+8.0
//+or:
[self.searchDisplayController+setActive:NO+animated:YES];+//+Obejective-C|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|5h1ak|这些是完成上述任务的一些变体|unstyled^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|H|9|@]|A|@]|B|$C|D]]|$2|E|4|F|6|G|8|I|9|@]|A|@]|B|$]]]]

<pre><code>self.navigationItem.searchController?.isActive = false // above iOS 8.0
// or: 
self.searchDisplayController.active = NO; // was deprecated in iOS 8.0
// or:
[self.searchDisplayController setActive:NO animated:YES]; // Obejective-C
</code></pre>
These are some of the variants that accomplish the mentioned task

How to trigger programmatically cancel button in UISearchBar, like if you have tapped cancel button?

I have a UISearchBar in the top of a UITableView and after a search, when someone select a row, I want to trigger programmatically cancel button in the UISearchBar?

EDIT: Without user interaction.

How to trigger cancel button in UISearchBar?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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 如何在UISearchBar中以编程方式触发cancel按钮，就像你点击了cancel按钮一样？ 我在UITableView的顶部有一个UISearchBar，在搜索之后，当有人选择一行时，我想以编程方式触发UISearchBar中的cancel按钮。 编辑： 而不需要用户交互。

问如何在UISearchBar中触发取消按钮？
EN

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问如何在UISearchBar中触发取消按钮？EN