blocks|key|606686|text|[myTextField+resignFirstResponder]|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|606687|Here，“显示和隐藏键盘”部分中的第二段。|unstyled|offset|length|606688|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/documentation/uikit/uitextfield^0|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|R|8|@]|9|@$G|S|H|T|1|U]]|A|$]]|$1|I|3|-4|5|F|7|V|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<pre><code>[myTextField resignFirstResponder]
</code></pre>

<a href="https://developer.apple.com/documentation/uikit/uitextfield" rel="nofollow noreferrer">Here</a>, second paragraph in the Showing and Hiding the Keyboard section.

blocks|key|606801|text|如果您有多个文本字段，并且不知道哪个是first+responder+(或者您根本无法从编写此代码的位置访问这些文本字段)，则可以在包含这些文本字段的父视图上调用endEditing:。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|606802|在视图控制器的方法中，它看起来像这样：|606803|[self.view+endEditing:YES];|code-block|syntax|javascript|606804|该参数强制文本字段重新签署first+responder状态。如果您使用委托来执行验证，并且希望在文本字段的内容有效之前停止所有操作，您也可以这样编写代码：|606805|BOOL+didEndEditing+=+[self.view+endEditing:NO];
if+(didEndEditing)+{
++++//+on+to+the+next+thing...
}+else+{
++++//+text+field+must+have+said+to+first+responder+status:+"never+wanna+give+you+up,+never+wanna+let+you+down"
}|606806|与将单个文本字段告知resignFirstResponder相比，endEditing:方法要好得多，但是由于某些原因，直到最近我才发现它的存在。|606807|entityMap^0|29|B|0|0|0|0|0|A|K|X|B|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|11|8|@$9|12|A|13|B|C]|$9|14|A|15|B|C]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|T|$]]

If you have multiple text fields and don't know which one is first responder (or you simply don't have access to the text fields from wherever you are writing this code) you can call <code>endEditing:</code> on the parent view containing the text fields.

In a view controller's method, it would look like this:

<pre><code>[self.view endEditing:YES];
</code></pre>

The parameter forces the text field to resign first responder status. If you were using a delegate to perform validation and wanted to stop everything until the text field's contents were valid, you could also code it like this:

<pre><code>BOOL didEndEditing = [self.view endEditing:NO];
if (didEndEditing) {
 // on to the next thing...
} else {
 // text field must have said to first responder status: "never wanna give you up, never wanna let you down"
}
</code></pre>

The <code>endEditing:</code> method is much better than telling individual text fields to <code>resignFirstResponder</code>, but for some reason I never even found out about it until recently.

blocks|key|607132|text|我发现了一个endEditing和resignFirstResponder失败的案例。在这些情况下，这对我很有效。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|607133|ObjC|607134|[[UIApplication+sharedApplication]+sendAction:@selector(resignFirstResponder)+to:nil+from:nil+forEvent:nil];++++
[self+setEditing:NO];|code-block|syntax|javascript|607135|斯威夫特|607136|UIApplication.shared.sendAction(#selector(resignFirstResponder),+to:+nil,+from:+nil,+for:+nil)|607137|entityMap^0|6|A|H|K|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

I've discovered a case where <code>endEditing</code> and <code>resignFirstResponder</code> fail. This has worked for me in those cases.
<h3>ObjC</h3>
<pre><code>[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil]; 
[self setEditing:NO];
</code></pre>
<h3>Swift</h3>
<pre><code>UIApplication.shared.sendAction(#selector(resignFirstResponder), to: nil, from: nil, for: nil)
</code></pre>

blocks|key|821875|text|我建议您在头文件上添加和操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|821876|-(IBAction)removeKeyboard;|code-block|syntax|javascript|821877|在实现中，编写类似这样的代码：|821878|-(IBAction)removeKeyboard
{
[self.textfield+resignFirstResponder];
}|821879|在NIB文件中，在选项DidEndOnExit上从UITextFiled连接到文件的所有者。这样，当您按回车键时，键盘将消失。|821880|希望它能帮上忙！|821881|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I suggest you add and action on your header file:

<pre><code>-(IBAction)removeKeyboard;
</code></pre>

And in the implementation, write something like this:

<pre><code>-(IBAction)removeKeyboard
{
[self.textfield resignFirstResponder];
}
</code></pre>

In the NIB file, connect from the UITextFiled to the File's Owner on the option DidEndOnExit. That way, when you press return, the keyboard will disappear. 

Hope it helps!

blocks|key|607064|text|在视图控制器YourViewController.h文件中，确保实现了UITextFieldDelegate协议：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607065|@interface+YourViewController+:+<UITextFieldDelegate>

@end|code-block|syntax|javascript|607066|然后，在YourViewController.m文件中，实现以下实例方法：|607067|-+(void)touchesBegan:(NSSet+*)touches+withEvent:(UIEvent+*)event+{
++++[self.yourTextField1+resignFirstResponder];
++++[self.yourTextField2+resignFirstResponder];
++++...
++++[self.yourTextFieldn+resignFirstResponder];
}|607068|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

In your view controller YourViewController.h file, make sure you implement UITextFieldDelegate protocol :

<pre><code>@interface YourViewController : &lt;UITextFieldDelegate&gt;

@end
</code></pre>

Then, in YourViewController.m file, implement the following instance method:

<pre><code>- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
 [self.yourTextField1 resignFirstResponder];
 [self.yourTextField2 resignFirstResponder];
 ...
 [self.yourTextFieldn resignFirstResponder];
}
</code></pre>

blocks|key|607194|text|这将重新指定一个特定的文本字段|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607195|//+Swift
TextField.resignFirstResponder()

//+Objective+C
[TextField+resignFirstResponder];|code-block|syntax|javascript|607196|要重新签名任何文本字段，请使用以下代码|607197|//+Swift
self.view!.endEditing(true)

//+Objective+C
[self.view+endEditing:YES];|607198|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

This will resign one particular text field 

<pre><code>// Swift
TextField.resignFirstResponder()

// Objective C
[TextField resignFirstResponder];
</code></pre>

To resign any text field use below code 

<pre><code>// Swift
self.view!.endEditing(true)

// Objective C
[self.view endEditing:YES];
</code></pre>

blocks|key|607260|text|作为最后的手段|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607261|let+dummyTextView+=+UITextView(frame:+.zero)
view.addSubview(dummyTextView)
dummyTextView.becomeFirstResponder()
dummyTextView.resignFirstResponder()
dummyTextView.removeFromSuperview()|code-block|syntax|javascript|607262|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|$]]

as a last resort 

<pre><code>let dummyTextView = UITextView(frame: .zero)
view.addSubview(dummyTextView)
dummyTextView.becomeFirstResponder()
dummyTextView.resignFirstResponder()
dummyTextView.removeFromSuperview()
</code></pre>

blocks|key|606972|text|如果你不知道哪个textField是第一响应者，你可以找到它。我使用这个函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|606973|UIView+*resignFirstResponder(UIView+*theView)
{
++++if([theView+isFirstResponder])
++++{
++++++++[theView+resignFirstResponder];
++++++++return+theView;
++++}
++++for(UIView+*subview+in+theView.subviews)
++++{
++++++++UIView+*result+=+resignFirstResponder(subview);
++++++++if(result)+return+result;
++++}
++++return+nil;
}|code-block|syntax|javascript|606974|然后在你的代码调用中：|606975|++++UIView+*resigned+=+resignFirstResponder([UIScreen+mainScreen]);|606976|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you don't know which textField is the first responder you can find it. I use this function:

<pre><code>UIView *resignFirstResponder(UIView *theView)
{
 if([theView isFirstResponder])
 {
 [theView resignFirstResponder];
 return theView;
 }
 for(UIView *subview in theView.subviews)
 {
 UIView *result = resignFirstResponder(subview);
 if(result) return result;
 }
 return nil;
}
</code></pre>

Then in your code call:

<pre><code> UIView *resigned = resignFirstResponder([UIScreen mainScreen]);
</code></pre>

blocks|key|606851|text|您只是将yourTextFieldName替换为，您猜对了！您的文本字段。这将关闭键盘。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|606852|[yourTextFieldName+resignFirstResponder];|code-block|syntax|javascript|606853|entityMap^0|4|H|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|$]]

You just replace <code>yourTextFieldName</code> with, you guessed it! your textfield. This will close the keyboard.

<pre><code>[yourTextFieldName resignFirstResponder];
</code></pre>

blocks|key|606889|text|-(void)methodName
{
++++[textFieldName+resignFirstResponder];
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|606890|使用didEndOnExit调用此方法(methodName)|unstyled|606891|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>-(void)methodName
{
 [textFieldName resignFirstResponder];
}
</code></pre>

call this method (methodName) with didEndOnExit

blocks|key|822279|text|-(void)textFieldDidBeginEditing:(UITextField+*)textField
{
++++//+your+code

++++[textField+reloadInputViews];
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|822280|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>-(void)textFieldDidBeginEditing:(UITextField *)textField
{
 // your code

 [textField reloadInputViews];
}
</code></pre>

I have a UITextfield that i'd like to dismiss the keyboard for. I can't seem to make the keyboard go away no matter what code i use.

How do I dismiss the iOS keyboard?

Swift

我有一个UITextfield，我不想再用键盘了。不管我用什么代码，我似乎都不能让键盘消失。

问如何关闭iOS键盘？
EN

回答 11

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问如何关闭iOS键盘？EN

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问如何关闭iOS键盘？
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