blocks|key|4688157|text|我也有同样的问题，这个答案https://stackoverflow.com/a/12523916适用于我。我想知道是否有更优雅的解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4688158|My+code:|style|BOLD|4688159|UIImagePickerController++*imagePickerController+=+[[NonRotatingUIImagePickerController+alloc]+init];
imagePickerController.sourceType+=+UIImagePickerControllerSourceTypePhotoLibrary;

UIPopoverController++*popoverVC+=+[[UIPopoverController+alloc]+initWithContentViewController:imagePickerController];++++

[popoverVC+presentPopoverFromRect:frame+++//+did+you+forget+to+call+this+method?
+++++++++++++++++++++++++++inView:view
+++++++++permittedArrowDirections:UIPopoverArrowDirectionAny
+++++++++++++++++++++++++animated:YES];|code-block|syntax|javascript|4688160|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/12523916^0|D|10|0|0|0|8|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@$A|Z|B|10|F|G]]|9|@]|C|$]]|$1|H|3|I|5|J|7|11|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|12|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

I had the same problem and this answer <a href="https://stackoverflow.com/a/12523916">https://stackoverflow.com/a/12523916</a> works for me. Wonder if there is a more elegant solution.

My code:

<pre><code>UIImagePickerController *imagePickerController = [[NonRotatingUIImagePickerController alloc] init];
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

UIPopoverController *popoverVC = [[UIPopoverController alloc] initWithContentViewController:imagePickerController]; 

[popoverVC presentPopoverFromRect:frame // did you forget to call this method?
 inView:view
 permittedArrowDirections:UIPopoverArrowDirectionAny
 animated:YES];
</code></pre>

blocks|key|4598272|text|在IOS6中，您在三个地方支持界面方向：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4598273|显示您的UIApplicationDelegate|4598274|The+|unordered-list-item|4598275|
|4598276|+UIViewController时显示的摘要(或目标摘要屏幕)|4598277|4598278|如果你得到这个错误，很可能是因为你在UIPopover中加载的视图只支持纵向模式。这可能是由游戏中心、iAd或您自己的视图引起的。|4598279|如果它是您自己的视图，您可以通过覆盖UIViewController上的supportedInterfaceOrientations来修复它：|4598280|-+(NSUInteger)+supportedInterfaceOrientations
{
+++++//Because+your+app+is+only+landscape,+your+view+controller+for+the+view+in+your
+++++//+popover+needs+to+support+only+landscape
+++++return+UIInterfaceOrientationMaskLandscapeLeft+%7C+UIInterfaceOrientationMaskLandscapeRight;
}|code-block|syntax|javascript|4598281|如果它不是您自己的视图(例如iPhone上的GameCenter+)，您需要确保您的.plist支持纵向模式。您还需要确保您的UIApplicationDelegate支持以纵向模式显示的视图。为此，您可以编辑.plist，然后覆盖UIApplicationDelegate上的supportedInterfaceOrientation：|4598282|-+(NSUInteger)application:(UIApplication+*)application+supportedInterfaceOrientationsForWindow:(UIWindow+*)window
{
++++return+UIInterfaceOrientationMaskPortrait+%7C+UIInterfaceOrientationMaskLandscapeLeft+%7C+UIInterfaceOrientationMaskLandscapeRight;
}|4598283|entityMap^0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|12|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|13|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|14|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|15|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|16|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|17|8|@]|9|@]|A|$]]|$1|P|3|Q|5|R|7|18|8|@]|9|@]|A|$S|T]]|$1|U|3|V|5|6|7|19|8|@]|9|@]|A|$]]|$1|W|3|X|5|R|7|1A|8|@]|9|@]|A|$S|T]]|$1|Y|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|Z|$]]

In IOS6 you have supported interface orientations in three places:

<ol>
<li>The .plist (or Target Summary Screen)</li>
<li>Your UIApplicationDelegate</li>
<li>The UIViewController that is being displayed</li>
</ol>

If you are getting this error it is most likely because the view you are loading in your UIPopover only supports portrait mode. This can be caused by Game Center, iAd, or your own view.

If it is your own view, you can fix it by overriding supportedInterfaceOrientations on your UIViewController:

<pre><code>- (NSUInteger) supportedInterfaceOrientations
{
 //Because your app is only landscape, your view controller for the view in your
 // popover needs to support only landscape
 return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}
</code></pre>

If it is not your own view (such as GameCenter on the iPhone), you need to make sure your .plist supports portrait mode. You also need to make sure your UIApplicationDelegate supports views that are displayed in portrait mode. You can do this by editing your .plist and then overriding the supportedInterfaceOrientation on your UIApplicationDelegate:

<pre><code>- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
 return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}
</code></pre>

blocks|key|2959217|text|在花了很多时间寻找一种方法来避免子类化和添加大量代码后，下面是我的一行代码解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2959218|创建一个新的UIImagePickerController类别并添加|2959219|-(BOOL)shouldAutorotate{
++++return+NO;
}|code-block|syntax|javascript|2959220|这就是所有的人！|2959221|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

After spending a lot of time searching a way to avoid subclassing and adding ton of code,
here's my one line code solution.

Create a new one UIImagePickerController's category and add 

<pre><code>-(BOOL)shouldAutorotate{
 return NO;
}
</code></pre>

That's all folks!

blocks|key|2959259|text|我有一个类似的问题，当呈现图像拾取器在一个仅景观的应用程序中。根据Luiji博士的建议，我在控制器的开头添加了以下类别。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2959260|//+This+category+(i.e.+class+extension)+is+a+workaround+to+get+the
//+Image+PickerController+to+appear+in+landscape+mode.
@interface+UIImagePickerController(Nonrotating)
-+(BOOL)shouldAutorotate;
@end

@implementation+UIImagePickerController(Nonrotating)

-+(BOOL)shouldAutorotate+{
++return+NO;
}
@end|code-block|syntax|javascript|2959261|将这些行添加到ViewController+.m文件的@实现之前是最简单的。|2959262|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I had a similar issue when presenting the image picker in a landscape only app. As suggested by Dr. Luiji's, I added the following category at the beginning of my controller.

<pre><code>// This category (i.e. class extension) is a workaround to get the
// Image PickerController to appear in landscape mode.
@interface UIImagePickerController(Nonrotating)
- (BOOL)shouldAutorotate;
@end

@implementation UIImagePickerController(Nonrotating)

- (BOOL)shouldAutorotate {
 return NO;
}
@end
</code></pre>

It's easiest to add these lines just before the @implementation of your ViewController .m file.

blocks|key|2539539|text|解决我的问题的另一个方法是创建UIImagePickerController的子类并覆盖下面的方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2539540|@interface+MyImagePickerController+()

@end

@implementation+MyImagePickerController

-+(NSUInteger)supportedInterfaceOrientations+{
++++return+UIInterfaceOrientationMaskLandscape;
}|code-block|syntax|javascript|2539541|使用这个而不是UIImagePickerController，一切都可以正常工作。|2539542|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Another option that resolved my issues was to create a subclass of the UIImagePickerController and to override the below method 

<pre><code>@interface MyImagePickerController ()

@end

@implementation MyImagePickerController

- (NSUInteger)supportedInterfaceOrientations {
 return UIInterfaceOrientationMaskLandscape;
}
</code></pre>

Use this instead of the UIImagePickerController and it all works fine.

blocks|key|4688407|text|我在我的代码中遇到了同样的错误消息。我发现了这个，据苹果报道，这是一个错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4688408|https://devforums.apple.com/message/731764#731764|offset|length|4688409|他的解决方案是在AppDelegate中修复它。我实现了它，它对我来说是有效的！|4688410|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1D|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]]]

I was encountering the same error message in my code. I found this, it's a bug as reported by Apple:

<a href="https://devforums.apple.com/message/731764#731764" rel="noreferrer">https://devforums.apple.com/message/731764#731764</a>

His solution is to fix it in the AppDelegate. I implemented it and it works for me!

blocks|key|4688436|text|还可能出现此错误消息的另一种情况。我找了好几个小时才找到问题所在。这个帖子在读了几次之后非常有帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4688437|如果您的主视图控制器旋转到横向，并且您调用了一个应该以纵向显示的自定义子视图控制器，则当您的代码如下所示时，可能会出现此错误消息：|4688438|-+(NSUInteger)supportedInterfaceOrientations+{

++++return+UIInterfaceOrientationPortrait;
}|code-block|syntax|javascript|4688439|这里的陷阱是xcode的智能提示"UIInterfaceOrientationPortrait“，而我并不关心它。乍一看，这似乎是正确的。|4688440|右边的掩码被命名为|4688441|UIInterfaceOrientationMaskPortrait|4688442|注意小的中缀掩码“”，否则你的子视图将以一个异常和上面提到的错误消息结束。|offset|length|style|BOLD|4688443|新枚举是位移位的。旧的枚举返回无效值！|4688444|(在UIApplication.h中你可以看到新的声明:+UIInterfaceOrientationMaskPortrait+=+(1+<<+UIInterfaceOrientationPortrait)+)|4688445|解决方案是：|4688446|-+(BOOL)shouldAutorotate+{

++++return+YES;
}

-+(NSUInteger)supportedInterfaceOrientations+{

++++//+ATTENTION!+Only+return+orientation+MASK+values
++++//+return+UIInterfaceOrientationPortrait;

++++return+UIInterfaceOrientationMaskPortrait;
}+|4688447|迅速使用|4688448|override+func+shouldAutorotate()+->+Bool+{

++++return+true
}

override+func+supportedInterfaceOrientations()+->+Int+{

++++return+Int(UIInterfaceOrientationMask.Portrait.rawValue)
}|4688449|entityMap^0|0|0|0|0|0|0|9|1|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|19|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1A|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1B|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1C|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|1D|8|@]|9|@]|A|$G|H]]|$1|O|3|P|5|6|7|1E|8|@$Q|1F|R|1G|S|T]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1H|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1I|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1J|8|@]|9|@]|A|$]]|$1|10|3|11|5|F|7|1K|8|@]|9|@]|A|$G|H]]|$1|12|3|13|5|6|7|1L|8|@]|9|@]|A|$]]|$1|14|3|15|5|F|7|1M|8|@]|9|@]|A|$G|H]]|$1|16|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]]|17|$]]

There is another case this error message may appear. I was searching for hours until I found the problem. This thread was very helpful after reading it a couple of times.

If your main view controller is rotated to landscape orientation and you invoke a custom sub view controller which should be displayed in portrait orientation this error message can happen when your code looks like this:

<pre><code>- (NSUInteger)supportedInterfaceOrientations {

 return UIInterfaceOrientationPortrait;
}
</code></pre>

The trap here was xcode's intellisense suggested "UIInterfaceOrientationPortrait" and I didn't care about it. At the first glance this seemed to be correct.

The right mask is named

<pre><code>UIInterfaceOrientationMaskPortrait
</code></pre>

Be aware of the small infix "Mask", else your subview will end up with an exception and the mentioned error message above.

The new enums are bit shifted. The old enums return invalid values!

(in UIApplication.h you can see the new declaration: UIInterfaceOrientationMaskPortrait = (1 &lt;&lt; UIInterfaceOrientationPortrait) )

The solution is:

<pre><code>- (BOOL)shouldAutorotate {

 return YES;
}

- (NSUInteger)supportedInterfaceOrientations {

 // ATTENTION! Only return orientation MASK values
 // return UIInterfaceOrientationPortrait;

 return UIInterfaceOrientationMaskPortrait;
} 
</code></pre>

In swift use

<pre><code>override func shouldAutorotate() -&gt; Bool {

 return true
}

override func supportedInterfaceOrientations() -&gt; Int {

 return Int(UIInterfaceOrientationMask.Portrait.rawValue)
}
</code></pre>

blocks|key|2538014|text|-+(BOOL)shouldAutorotate+{
++++return+NO;
}

-(NSUInteger)supportedInterfaceOrientations+{
++++return+UIInterfaceOrientationMaskPortrait;
}

This+removes+the+crash.|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2538015|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>- (BOOL)shouldAutorotate {
 return NO;
}

-(NSUInteger)supportedInterfaceOrientations {
 return UIInterfaceOrientationMaskPortrait;
}

This removes the crash.
</code></pre>

blocks|key|2959400|text|iOS+8-您可以使用UIModalPresentationPopover在弹出窗口中不加任何修改地显示。这并不理想，但总比没有好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2959401|imagePicker.modalPresentationStyle+=+UIModalPresentationPopover;
imagePicker.popoverPresentationController.sourceView+=+self.view;
imagePicker.popoverPresentationController.sourceRect+=+((UIButton+*)sender).frame;|code-block|syntax|javascript|2959402|编辑:也许可以尝试不同的UIModalPresentationStyles+-也许更多可以在景观中工作。|2959403|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

iOS 8 - you can use UIModalPresentationPopover without any hacks to display in a popover. Not ideal but better than nothing.

<pre><code>imagePicker.modalPresentationStyle = UIModalPresentationPopover;
imagePicker.popoverPresentationController.sourceView = self.view;
imagePicker.popoverPresentationController.sourceRect = ((UIButton *)sender).frame;
</code></pre>

Edit: perhaps try the different UIModalPresentationStyles - maybe more will work in landscape.

blocks|key|2959513|text|创建一个类别对修复这个bug非常有帮助。并且不要忘记导入您创建的类别。这将把缺失的方法添加到UIImagePickerController中，并且在iOS+6上，它将限制它仅在肖像中工作，正如文档所述。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2959514|其他的解决方案可能已经奏效了。但是，在iOS+6.1上编译部署iOS+8.x的软件开发工具包之后，这似乎是一条正确的道路。|2959515|文件.h-：|offset|length|style|BOLD|2959516|#import+<UIKit/UIKit.h>

@interface+UIImagePickerController+(iOS6FIX)

-+(BOOL)+shouldAutorotate;
-+(UIInterfaceOrientation)+preferredInterfaceOrientationForPresentation;

@end|code-block|syntax|javascript|2959517|文件.m-：|2959518|#import+"UIImagePickerController%2BiOS6FIX.h"

@implementation+UIImagePickerController+(iOS6FIX)

-+(BOOL)+shouldAutorotate+{
++++return+NO;
}

-+(UIInterfaceOrientation)+preferredInterfaceOrientationForPresentation+{
++++return+UIInterfaceOrientationPortrait;
}

@end|2959519|entityMap^0|0|0|5|1|0|0|5|1|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|W|8|@$F|X|G|Y|H|I]]|9|@]|A|$]]|$1|J|3|K|5|L|7|Z|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|10|8|@$F|11|G|12|H|I]]|9|@]|A|$]]|$1|Q|3|R|5|L|7|13|8|@]|9|@]|A|$M|N]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

Creating a category is really helpful to fix this bug. And do not forget to import your created category. This will add the missing method to UIImagePickerController and on iOS 6 it will restrict it to work in Portrait only as the documentation states btw.

The other solutions may have worked. But with SDK for iOS 8.x compiled to deploy on iOS 6.1 this seems the way to go.

The .h-file:

<pre><code>#import &lt;UIKit/UIKit.h&gt;

@interface UIImagePickerController (iOS6FIX)

- (BOOL) shouldAutorotate;
- (UIInterfaceOrientation) preferredInterfaceOrientationForPresentation;

@end
</code></pre>

The .m-file:

<pre><code>#import "UIImagePickerController+iOS6FIX.h"

@implementation UIImagePickerController (iOS6FIX)

- (BOOL) shouldAutorotate {
 return NO;
}

- (UIInterfaceOrientation) preferredInterfaceOrientationForPresentation {
 return UIInterfaceOrientationPortrait;
}

@end
</code></pre>

blocks|key|4598622|text|Swift+3|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4598623|let+imagePicker+=+UIImagePickerController()

imagePicker.modalPresentationStyle+=+.popover
imagePicker.popoverPresentationController?.sourceView+=+sender+//+you+can+also+pass+any+view+

present(imagePicker,+animated:+true)|code-block|syntax|javascript|4598624|entityMap^0|0|7|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|$]]

Swift 3

<pre><code>let imagePicker = UIImagePickerController()

imagePicker.modalPresentationStyle = .popover
imagePicker.popoverPresentationController?.sourceView = sender // you can also pass any view 

present(imagePicker, animated: true)
</code></pre>

blocks|key|2539637|text|当将+UIInterfaceOrientationMaskPortrait+转换为作为返回值时，我遇到了这个崩溃问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|2539638|更多关于UIPageViewControllerDelegate的代码背景，仅供大家参考。|2539639|+-(UIInterfaceOrientationMask)pageViewControllerSupportedInterfaceOrientations:
(UIPageViewController+*)pageViewController
{
++++#+return+UIInterfaceOrientationPortrait;++++#+wrong
++++return+UIInterfaceOrientationMaskPortrait;++#+correct
}|code-block|syntax|javascript|2539640|entityMap^0|1|1|3|Y|12|3|3|Y|0|4|S|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|Y|8|@$9|Z|A|10|B|D]]|E|@]|F|$]]|$1|I|3|J|5|K|7|11|8|@]|E|@]|F|$L|M]]|$1|N|3|-4|5|6|7|12|8|@]|E|@]|F|$]]]|O|$]]

I encountered this crash issue when converting <code>UIInterfaceOrientationPortrait</code> to <code>UIInterfaceOrientationMaskPortrait</code> implicitly as a return value.

More code background on <code>UIPageViewControllerDelegate</code>, just FYI for all of you.

<pre><code> -(UIInterfaceOrientationMask)pageViewControllerSupportedInterfaceOrientations:
(UIPageViewController *)pageViewController
{
 # return UIInterfaceOrientationPortrait; # wrong
 return UIInterfaceOrientationMaskPortrait; # correct
}
</code></pre>

blocks|key|2959575|text|我刚刚解决了Swift+4.x的问题|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2959576|override+func+viewDidLayoutSubviews()+{
++++super.viewDidLayoutSubviews()
++++configureVideoOrientation()
}

override+func+viewWillTransition(to+size:+CGSize,+with+coordinator:+UIViewControllerTransitionCoordinator)+{
++++super.viewWillTransition(to:+size,+with:+coordinator)
++++coordinator.animate(alongsideTransition:+nil,+completion:+{+[weak+self]+_+in
++++++++self?.configureVideoOrientation()
++++})
}

private+func+configureVideoOrientation()+{
++++guard+let+previewLayer+=+self.previewLayer,+let+connection+=+previewLayer.connection+else+{+return+}
++++if+connection.isVideoOrientationSupported+{
++++++++let+orientation+=+UIApplication.shared.statusBarOrientation
++++++++switch+(orientation)+{
++++++++case+.portrait:
++++++++++++previewLayer.connection?.videoOrientation+=+.portrait
++++++++case+.landscapeRight:
++++++++++++previewLayer.connection?.videoOrientation+=+.landscapeRight
++++++++case+.landscapeLeft:
++++++++++++previewLayer.connection?.videoOrientation+=+.landscapeLeft
++++++++case+.portraitUpsideDown:
++++++++++++previewLayer.connection?.videoOrientation+=+.portraitUpsideDown
++++++++default:
++++++++++++previewLayer.connection?.videoOrientation+=+.portrait
++++++++}

++++++++previewLayer.frame+=+self.view.bounds
++++}
}|code-block|syntax|javascript|2959577|也感谢你们的回答。我刚刚删掉了工作过的代码，并简单地重构了它。|2959578|entityMap^0|6|9|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

I've just resolved the issue for Swift 4.x

<pre><code>override func viewDidLayoutSubviews() {
 super.viewDidLayoutSubviews()
 configureVideoOrientation()
}

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
 super.viewWillTransition(to: size, with: coordinator)
 coordinator.animate(alongsideTransition: nil, completion: { [weak self] _ in
 self?.configureVideoOrientation()
 })
}

private func configureVideoOrientation() {
 guard let previewLayer = self.previewLayer, let connection = previewLayer.connection else { return }
 if connection.isVideoOrientationSupported {
 let orientation = UIApplication.shared.statusBarOrientation
 switch (orientation) {
 case .portrait:
 previewLayer.connection?.videoOrientation = .portrait
 case .landscapeRight:
 previewLayer.connection?.videoOrientation = .landscapeRight
 case .landscapeLeft:
 previewLayer.connection?.videoOrientation = .landscapeLeft
 case .portraitUpsideDown:
 previewLayer.connection?.videoOrientation = .portraitUpsideDown
 default:
 previewLayer.connection?.videoOrientation = .portrait
 }

 previewLayer.frame = self.view.bounds
 }
}
</code></pre>

Thank you guys for your answers also. I've just cut the worked code and simply refactored it.

blocks|key|4598679|text|Swift+4和更高版本假设整个应用程序都是横向的，并且您需要在纵向中呈现单个控制器。在必须是纵向的视图控制器中，添加以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4598680|override+open+var+supportedInterfaceOrientations:+UIInterfaceOrientationMask+{
++++return+.portrait
}

open+override+var+shouldAutorotate:+Bool+{
++++return+false
}|code-block|syntax|javascript|4598681|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 4 and up assuming the whole app is in landscape and you need to present a single controller in portrait.
In the view controller that has to be portrait add the following :

<pre><code>override open var supportedInterfaceOrientations: UIInterfaceOrientationMask {
 return .portrait
}

open override var shouldAutorotate: Bool {
 return false
}
</code></pre>

My app (iPad;iOS 6) is a landscape only application, but when I try using a UIPopoverController to display the photo library it throws this error:
<code>Supported orientations has no common orientation with the application, and shouldAutorotate is returning YES.</code> I've tried changing a lot of the code around but I've had no luck.

Supported orientations has no common orientation with the application, and shouldAutorotate is returning YES'

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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我的应用程序(iPad；iOS6)是一个仅适用于风景的应用程序，但当我尝试使用UIPopoverController显示图片库时，它抛出了这个错误：Supported orientations has no common orientation with the application, and shouldAutor...

问支持的方向与应用程序没有共同的方向，并且shouldAutorotate返回YES‘
EN

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问支持的方向与应用程序没有共同的方向，并且shouldAutorotate返回YES‘EN