blocks|key|1133868|text|iOS+7不再支持向其层次结构添加子视图。这就是我写SDCAlertView的原因。它会添加一个contentView属性，您可以使用该属性向警报中添加任何其他视图。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1133869|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Scott90/SDCAlertView^0|Q|C|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

iOS 7 doesn't support adding subviews to its hierarchy anymore. That's why I wrote <a href="https://github.com/Scott90/SDCAlertView" rel="nofollow">SDCAlertView</a>. It adds a contentView property which you can use to add any other view to the alert.

blocks|key|1063546|text|在iOS7+UIAlertView's中，视图层次结构已更改，因此现在无法向UIAleartView添加任何视图|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1063547|entityMap^0|6|D|12|C|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

In iOS7 <code>UIAlertView's</code> view hierarchy has been changed , so now you cant add any view to the <code>UIAleartView</code>

blocks|key|3380379|text|从iOS7开始，不再支持向UIAlertView添加子视图。您可以使用第三方视图，如：https://github.com/wimagguc/ios-custom-alertview|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3380380|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/wimagguc/ios-custom-alertview^0|17|1C|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Adding subviews to a UIAlertView is not supported anymore, starting in iOS7. You can use third party view like: <a href="https://github.com/wimagguc/ios-custom-alertview" rel="nofollow">https://github.com/wimagguc/ios-custom-alertview</a>

blocks|key|4849145|text|试用此代码|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4849146|UIAlertView+*myAlertView+=+[[UIAlertView+alloc]+initWithTitle:@"Hello"
+++++message:@"message"+delegate:self+cancelButtonTitle:@"Cancel"+otherButtonTitles:@"Stamp",+nil];
++++UIDatePicker++*pickerView=[[UIDatePicker+alloc]initWithFrame:CGRectMake(0,40,246,150)];
++++pickerView.datePickerMode=UIDatePickerModeDate;
+++++myAlertView.tag=101;
+++++[myAlertView+show];
++++UIDatePicker+*picker+=+[[UIDatePicker+alloc]+initWithFrame:CGRectMake(10,+myAlertView.bounds.size.height,+320,+216)];
++++//+Add+picker+to+alert
++++[myAlertView+addSubview:picker];
++++//+Adjust+the+alerts+bounds
++++myAlertView.bounds+=+CGRectMake(0,+0,+320+%2B+20,+myAlertView.bounds.size.height+%2B+216+%2B+20);
+++++[myAlertView+release];|code-block|syntax|javascript|4849147|entityMap^0|0|5|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|$]]

Try this Code 

<pre><code>UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:@"Hello"
 message:@"message" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Stamp", nil];
 UIDatePicker *pickerView=[[UIDatePicker alloc]initWithFrame:CGRectMake(0,40,246,150)];
 pickerView.datePickerMode=UIDatePickerModeDate;
 myAlertView.tag=101;
 [myAlertView show];
 UIDatePicker *picker = [[UIDatePicker alloc] initWithFrame:CGRectMake(10, myAlertView.bounds.size.height, 320, 216)];
 // Add picker to alert
 [myAlertView addSubview:picker];
 // Adjust the alerts bounds
 myAlertView.bounds = CGRectMake(0, 0, 320 + 20, myAlertView.bounds.size.height + 216 + 20);
 [myAlertView release];
</code></pre>

blocks|key|4849172|text|遗憾的是，Apple不允许您添加子视图或修改视图层次结构。有关以下内容，请参阅https://developer.apple.com/library/ios/documentation/uikit/reference/UIAlertView_Class/UIAlertView/UIAlertView.html：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4849173|4849174|+UIAlertView类旨在按原样使用，不支持子类化。此类的视图层次结构是私有的，不能修改。|blockquote|4849175|4849176|4849177|有关以下内容，请参阅https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/UIKitUICatalog/UIAlertView.html#//apple_ref/doc/uid/TP40012857-UIAlertView：|4849178|4849179|+警报视图的外观|style|BOLD|4849180|4849181|您不能自定义警报视图的外观。|4849182|4849183|违反这些会让你的应用程序在Apple+Review过程中被拒绝-所以我会回去看看你的应用程序的设计。|4849184|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/library/ios/documentation/uikit/reference/UIAlertView_Class/UIAlertView/UIAlertView.html|1|https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/UIKitUICatalog/UIAlertView.html#//apple_ref/doc/uid/TP40012857-UIAlertView^0|13|38|0|0|0|0|0|0|A|4A|1|0|0|1|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@$A|17|B|18|1|19]]|C|$]]|$1|D|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]|$1|E|3|F|5|G|7|1B|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|1C|8|@]|9|@]|C|$]]|$1|I|3|-4|5|6|7|1D|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|L|3|-4|5|6|7|1I|8|@]|9|@]|C|$]]|$1|M|3|N|5|G|7|1J|8|@$A|1K|B|1L|O|P]]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|1M|8|@]|9|@]|C|$]]|$1|R|3|S|5|6|7|1N|8|@]|9|@]|C|$]]|$1|T|3|-4|5|6|7|1O|8|@]|9|@]|C|$]]|$1|U|3|V|5|6|7|1P|8|@]|9|@]|C|$]]|$1|W|3|-4|5|6|7|1Q|8|@]|9|@]|C|$]]]|X|$Y|$5|Z|10|11|C|$12|13]]|14|$5|Z|10|11|C|$12|15]]]]

Unfortunately Apple will not allow you to add subviews or modify the view hierarchy. See <a href="https://developer.apple.com/library/ios/documentation/uikit/reference/UIAlertView_Class/UIAlertView/UIAlertView.html" rel="nofollow noreferrer">https://developer.apple.com/library/ios/documentation/uikit/reference/UIAlertView_Class/UIAlertView/UIAlertView.html</a> for:
<blockquote>
The UIAlertView class is intended to be used as-is and does not support subclassing. The view hierarchy for this class is private and must not be modified.
</blockquote>
And see <a href="https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/UIKitUICatalog/UIAlertView.html#//apple_ref/doc/uid/TP40012857-UIAlertView" rel="nofollow noreferrer">https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/UIKitUICatalog/UIAlertView.html#//apple_ref/doc/uid/TP40012857-UIAlertView</a> for:
<blockquote>
Appearance of Alert Views
You cannot customize the appearance of alert views.
</blockquote>
Going against these will get your App rejected in the Apple Review process - so I would go back and look at your design of your app.

UIAlertview not adding UIDatePicker when i click on textfield? 

<pre><code>- (void)textFieldDidBeginEditing:(UITextField *)textField
{
 UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Preferences"
 message:@"\n\n\n\n\n\n\n"
 delegate:self
 cancelButtonTitle:@"Cancel"
 otherButtonTitles:@"OK", nil];
 pickerView=[[UIDatePicker alloc]initWithFrame:CGRectMake(0,40,246,150)];
 pickerView.datePickerMode=UIDatePickerModeDate;
 [alert addSubview:pickerView];
 [alert show];
}
</code></pre>

UIAlertview not adding UIDatePicker when i click on textfield?

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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当我点击textfield时UIAlertview没有添加UIDatePicker吗？- (void)textFieldDidBeginEditing:(UITextField *)textField{    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Preferences"                         

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问当我点击textfield时UIAlertview没有添加UIDatePicker吗？
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