blocks|key|462214|text|当使用UINavigationController作为应用程序的基础时，我使用以下子类为我提供了灵活性，允许最顶层的子视图控制器决定旋转。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|462215|@interface+RotationAwareNavigationController+:+UINavigationController

@end

@implementation+RotationAwareNavigationController

-(NSUInteger)supportedInterfaceOrientations+{
++++UIViewController+*top+=+self.topViewController;
++++return+top.supportedInterfaceOrientations;
}

-(BOOL)shouldAutorotate+{
++++UIViewController+*top+=+self.topViewController;
++++return+[top+shouldAutorotate];
}

@end|code-block|syntax|javascript|462216|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|$]]

When using UINavigationController as the basis for an app I use the following subclass to give me the flexibility to allow the top most child viewcontroller to decide about rotation.

<pre><code>@interface RotationAwareNavigationController : UINavigationController

@end

@implementation RotationAwareNavigationController

-(NSUInteger)supportedInterfaceOrientations {
 UIViewController *top = self.topViewController;
 return top.supportedInterfaceOrientations;
}

-(BOOL)shouldAutorotate {
 UIViewController *top = self.topViewController;
 return [top shouldAutorotate];
}

@end
</code></pre>

blocks|key|245701|text|这就是我要做的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|245702|如果要检查哪个是当前方向，请将此行添加到viewconrtoller.m文件中|245703|+#define+isPortrait+[[UIApplication+sharedApplication]+statusBarOrientation]+==+UIInterfaceOrientationPortrait+%7C%7C+[[UIApplication+sharedApplication]+statusBarOrientation]+==+UIInterfaceOrientationPortraitUpsideDown|code-block|syntax|javascript|245704|然后在你想要检查方向的地方，像下面这样写条件|245705|-+(void)viewDidLoad
{

++++++++if(isPortrait)
++++++++{
++++++++++++//portrait+mode....

++++++++++++NSLog(@"its+in+IsPotraitMode");
++++++++}
++++++++else
++++++++{
++++++++++++//landscape+mode....
++++++++++++NSLog(@"its+in+IsLandscapeMode");
++++++++}
}|245706|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This is how I would do it

if you want to check which is current orientation then add this line to your viewconrtoller.m file

<pre><code> #define isPortrait [[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationPortrait || [[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationPortraitUpsideDown
</code></pre>

then where you want to check orientation ,write condition like below

<pre><code>- (void)viewDidLoad
{

 if(isPortrait)
 {
 //portrait mode....

 NSLog(@"its in IsPotraitMode");
 }
 else
 {
 //landscape mode....
 NSLog(@"its in IsLandscapeMode");
 }
}
</code></pre>

blocks|key|462314|text|我使用的是iOS+7，但我相信我的案例可能会对其他人有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|462315|我有一个以UITabBarController为根的深层视图控制器层次结构。保证调用shouldAutorotate的唯一位置是在UITabBarController内部。因此，我简单地将UITabBarController子类化，并将旋转控制逻辑放入shouldAutorotate方法中。|462316|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I'm using iOS 7 but I believe my case may be helpful to others.

I have a deep view controller hierarchy rooted with UITabBarController. The only place where shouldAutorotate is guaranteed to be called is inside the UITabBarController. So I simply subclass UITabBarController and put my rotation control logic inside my shouldAutorotate method.

blocks|key|245801|text|如果您使用UINavigationController作为应用程序的基础。我创建了一个UINavigationController类别，并将其命名为"UINavigationController%2BautoRotate“。把这个放到你的UINavigationController%2BautoRotate.h里：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|245802|#import+<UIKit/UIKit.h>

@interface+UINavigationController+(autoRotate)

-(BOOL)shouldAutorotate;
-(NSUInteger)supportedInterfaceOrientations;

@end|code-block|syntax|javascript|245803|将此代码放入UINavigationController%2BautoRotate.m：|245804|#import+"UINavigationController%2BautoRotate.h"

@implementation+UINavigationController+(autoRotate)

-+(BOOL)shouldAutorotate
{
++++return+[self.visibleViewController+shouldAutorotate];
}

-+(NSUInteger)supportedInterfaceOrientations
{
++++return+[self.topViewController+supportedInterfaceOrientations];
}

@end|245805|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 use UINavigationController as the basis for an app. I create a category of UINavigationController and call it "UINavigationController+autoRotate".
Put this in your UINavigationController+autoRotate.h:

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

@interface UINavigationController (autoRotate)

-(BOOL)shouldAutorotate;
-(NSUInteger)supportedInterfaceOrientations;

@end
</code></pre>

Put this in UINavigationController+autoRotate.m:

<pre><code>#import "UINavigationController+autoRotate.h"

@implementation UINavigationController (autoRotate)

- (BOOL)shouldAutorotate
{
 return [self.visibleViewController shouldAutorotate];
}

- (NSUInteger)supportedInterfaceOrientations
{
 return [self.topViewController supportedInterfaceOrientations];
}

@end
</code></pre>

I have been scouring the internet for a solution to this but am finding nothing. I am trying to make my iOS 5 app iOS 6 compatible. I cannot get the orientation stuff to work right. I am unable to detect when a rotation is about to happen. Here is the code I am trying:

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

- (NSUInteger)supportedInterfaceOrientations {
 return UIInterfaceOrientationMaskPortrait;
}
// pre-iOS 6 support
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
 return (toInterfaceOrientation == UIInterfaceOrientationPortrait);
}
</code></pre>

The new supportedInterfaceOrientation: method gets called just fine. The shouldAutorotate method, however, will not fire. I need to do some image swapping on rotate, but I can't get any indication that a rotation is about to occur.

Thanks in advance.

iOS 6 shouldAutorotate: is NOT being called

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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我一直在互联网上寻找解决方案，但一无所获。我正在尝试使我的iOS 5应用程序与iOS 6兼容。我不能让迎新的东西正常工作。我无法检测到何时会发生旋转。下面是我正在尝试的代码：- (BOOL)shouldAutorotate {    return NO;}- (NSUInteger)supportedInterface...

问iOS 6 shouldAutorotate:未被调用
EN

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问iOS 6 shouldAutorotate:未被调用EN