blocks|key|4075308|text|如其他人所述，设置UITextView的delegate属性。最常见的委托对象是self。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4075309|详细说明“委托对象”：委托对象是您希望事件响应的类(实现UITextViewDelegate协议)。例如，如果使用类实例而不是self，则UITextView会将其事件发送到该类中委托方法的实现。|4075310|entityMap^0|9|A|K|8|14|4|0|S|I|1R|4|1X|A|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|I|$]]

As others have stated, set the <code>delegate</code> property of the <code>UITextView</code>. The most common delegate object is <code>self</code>.

To elaborate on "delegate object": the delegate object is the class (implementing the <code>UITextViewDelegate</code> protocol) that you want the events to respond to. For example, if you use a class instance instead of <code>self</code>, the <code>UITextView</code> will send its events to the implementations of the delegate methods in that class.

blocks|key|380976|text|您很可能希望将委托分配给当前控制器对象，即self|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|380977|textView.delegate+=+self;|code-block|syntax|javascript|380978|entityMap^0|L|4|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Most likely you want to assign a delegate to a current controller object, that is <code>self</code>:

<pre><code>textView.delegate = self;
</code></pre>

blocks|key|2001421|text|yourDelegateObject+=+self。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2001422|您可以使用|2001423|textView.delegate+=+self；|2001424|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

yourDelegateObject = self.

you can use 

textView.delegate = self;

blocks|key|2001437|text|委托是您的UIViewController，所以它是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2001438|textView.delegate+=+self;|code-block|syntax|javascript|2001439|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|$]]

The delegate is your UIViewController so it's

<pre><code>textView.delegate = self;
</code></pre>

blocks|key|2358064|text|尝试将self作为代理：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2358065|textView.delegate+=+self;|code-block|syntax|javascript|2358066|所以你需要把函数-+(BOOL)textViewShouldBeginEditing:(UITextView+*)aTextView放在你的控制器的实现中。|offset|length|style|BOLD|2358067|entityMap^0|0|0|8|1M|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Try to put self as delegate:

<pre><code>textView.delegate = self;
</code></pre>

So you need to put the function - (BOOL)textViewShouldBeginEditing:(UITextView *)aTextView in the implementation of your controller.

blocks|key|4075273|text|委托可以是任何对象，它不必是在其中创建textField的类，尽管通常是这样的-只要是这样，您就会将其设置为self，尽管您可以将其设置为任何符合该协议的实例化对象(只要为该对象定义了正式协议)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4075274|entityMap^0|1I|4|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

The delegate can be any object, it doesn't have to be the class the textField is created in, though usually it is - whenever this is true you will set it to self, though you can set it to any instanced object that conforms to the protocol (whenever a formal protocol is defined for the object).

blocks|key|2001648|text|只需将其分配给self：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2001649|textView.delegate+=+self;|code-block|syntax|javascript|2001650|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|$]]

Just assign it to self:

<pre><code>textView.delegate = self;
</code></pre>

blocks|key|381177|text|Swift：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|381178|textView.delegate+=+self|code-block|syntax|javascript|381179|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|$]]

Swift:

<pre><code>textView.delegate = self
</code></pre>

blocks|key|381221|text|确保在您的类中添加了UIItextFieldDelegate。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|381222|例如:假设我的班名为披萨，我的textField名为goodEats|381223|class+Pizza:+UIViewController,+UITextFieldDelegate+{

//Then+set+the+delegate+in+viewDidLoad+
override+func+viewDidLoad()+{
super.viewDidLoad()

++++goodEats.delegate+=+self

}
}|code-block|syntax|javascript|381224|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Make sure in your class you add UIItextFieldDelegate. 

Example: say my class was called Pizza and my textField was called goodEats

<pre><code>class Pizza: UIViewController, UITextFieldDelegate {

//Then set the delegate in viewDidLoad 
override func viewDidLoad() {
super.viewDidLoad()

 goodEats.delegate = self

}
}
</code></pre>

Suppose you have an UITextView and you would like to set the delegate of this UITextView.

First thing is that you put this in your header file:

<pre><code>@interface myViewController : UIViewController &lt;UITextViewDelegate&gt; { ...
</code></pre>

Then, if you were using IB, you would click the UITextView, and connect the delegate outlet with File's Owner. This would allow you to use commands such as <code>- (BOOL)textViewShouldBeginEditing:(UITextView *)aTextView {</code> etc.

Now, suppose you wanted to do this programatically. I found this suggestion on here:

<pre><code>textView.delegate = yourDelegateObject;
</code></pre>

But I have no idea what 'yourDelegateObject' stands for. In IB, I am connecting with File's Owner... so in code, it would need to be textView.delegate = File's Owner. But what is the File's Owner in this case? myViewController? UIViewController?

I don't really understand the principle, I suppose. Any help would be very much appreciated.

UITextViewDelegate: how to set the delegate in code (not in IB...)

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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假设你有一个UITextView，并且你想设置这个UITextView的委托。第一件事是你把它放在你的头文件中：@interface myViewController : UIViewController <UITextViewDelegate> { ...然后，如果您正在使用IB，您将单击UITextView，并将代理插座与文件的所有者连接起来。这将允许您使用诸如- (BOOL)textView

问UITextViewDelegate:如何在代码中设置委托(而不是在IB...)
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