blocks|key|3584128|text|当调用changeModeAction:时，flipButton应该将自身作为发送者进行传递。如果您需要传递额外的参数，您可以为flipButton类型设置create+a+category来存储额外的信息，或者您可以设置一个navigationController可以访问的字典，例如|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3584129|if(sender+==+flipButton)
+id+obj+=+[someDictionary+objectForKey:@"flipButtonKey"];|code-block|syntax|javascript|3584130|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/5500327/subclass-uibutton-to-add-a-property/5500525#5500525^0|3|H|M|A|26|H|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|G|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

When <code>changeModeAction:</code> is called <code>flipButton</code> should pass itself as the sender. If you need additional parameters passed you could <a href="https://stackoverflow.com/questions/5500327/subclass-uibutton-to-add-a-property/5500525#5500525">create a category</a> for the type of flipButton to store additional information or you could set up a dictionary that the navigationController can access e.g.

<pre><code>if(sender == flipButton)
 id obj = [someDictionary objectForKey:@"flipButtonKey"];
</code></pre>

blocks|key|1516895|text|或者，您可以使用objc_setAssociatedObject和objc_getAssociatedObject|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1516896|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Or you can use objc_setAssociatedObject and objc_getAssociatedObject

blocks|key|1516922|text|可以使用layer特性。在图层字典中添加要作为值传递的对象。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1516923|[[btn+layer]+setValue:yourObj+forKey:@"yourKey"];|code-block|syntax|javascript|1516924|此yourObj可通过按钮操作功能访问：|offset|length|style|CODE|1516925|-(void)btnClicked:(id)sender
{
++++yourObj+=+[[sender+layer]+valueForKey:@"yourKey"];
}|1516926|使用这种方法，只需在字典中添加具有不同键的新对象，就可以将多个值传递给按钮函数。|1516927|entityMap^0|0|0|1|7|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

You can use the layer property. Add the object you want to pass as the value in the layer dictionary.

<pre><code>[[btn layer] setValue:yourObj forKey:@"yourKey"];
</code></pre>

This <code>yourObj</code> is accessible from the button action function:

<pre><code>-(void)btnClicked:(id)sender
{
 yourObj = [[sender layer] valueForKey:@"yourKey"];
}
</code></pre>

With this method you can pass multiple values to the button function just by adding new objects in the dictionary with different keys.

blocks|key|1516952|text|extension+%2B+Swift+3.0|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1516953|extension+NSObject+{

fileprivate+struct+ObjectTagKeys+{
++++static+var+ObjectTag+=+"ObjectTag"
}

func+setObjectTag(_+tag:Any!)+{
++++objc_setAssociatedObject(self,+&ObjectTagKeys.ObjectTag,+tag,+objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}

func+getObjectTag()+->+Any
{
++++return+objc_getAssociatedObject(self,+&ObjectTagKeys.ObjectTag)
}

}|code-block|syntax|javascript|1516954|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

extension + Swift 3.0

<pre><code>extension NSObject {

fileprivate struct ObjectTagKeys {
 static var ObjectTag = "ObjectTag"
}

func setObjectTag(_ tag:Any!) {
 objc_setAssociatedObject(self, &amp;ObjectTagKeys.ObjectTag, tag, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}

func getObjectTag() -&gt; Any
{
 return objc_getAssociatedObject(self, &amp;ObjectTagKeys.ObjectTag)
}

}
</code></pre>

I have the following code inside my UIViewController -

<pre><code>[flipButton addTarget:self.navigationController.delegate action:@selector(changeModeAction:) forControlEvents:UIControlEventTouchUpInside];
</code></pre>

As you can see, it calls a method inside it's navigation controller delegate. How do I correctly pass along an object to this method?

How to send an object as argument when a UIButton is tapped?

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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我的UIViewController中有以下代码：[flipButton addTarget:self.navigationController.delegate action:@selector(changeModeAction:) forControlEvents:UIControlEventTouchUpInsi...

问当UIButton被点击时，如何将对象作为参数发送？
EN

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问当UIButton被点击时，如何将对象作为参数发送？EN