iOS 6 supportedInterfaceOrientations问题 [英] iOS 6 supportedInterfaceOrientations issue

问题描述

在我的视图控制器中，我实现两种控制接口方向的方法：

In my view controller, I implement two methods for controlling interface orientation:

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

- (BOOL)shouldAutorotate
{
    return YES;
}

在 supportedInterfaceOrientations 方法，我返回 UIInterfaceOrientationMaskPortrait 但是当时我意识到 shouldAutorotate 方法未被调用。

In the supportedInterfaceOrientations method, I return UIInterfaceOrientationMaskPortrait but at that time I realized that the shouldAutorotate method is not being called.

但我改变为 supportedInterfaceOrientations 方法中的 return UIInterfaceOrientationPortrait 。 shouldAutorotate 方法正在被调用，但有一个错误提到以下内容：

But I change to return UIInterfaceOrientationPortrait in the supportedInterfaceOrientations method. The shouldAutorotate method is being called, but there is an error that mentions in following:

UIApplicationInvalidInterfaceOrientation ，原因：'支持的方向与应用程序没有共同的方向，shouldAutorotate正在返回YES'

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

顺便说一下，我选择了支持的界面方向的所有方向。

By the way, I select all orientations in the supported interface orientations.

EDITED

我使用viewController和嵌入与navigationController。
这里是AppDelegate.h

i use viewController and embed with navigationController. here is AppDelegate.h

@interface AppDelegate : UIResponder <UIApplicationDelegate,UINavigationControllerDelegate>

@property (strong, nonatomic) UIWindow *window;

@property (readonly, strong, nonatomic) NSManagedObjectContext *managedObjectContext;
@property (readonly, strong, nonatomic) NSManagedObjectModel *managedObjectModel;
@property (readonly, strong, nonatomic) NSPersistentStoreCoordinator *persistentStoreCoordinator;
@property (readonly, strong, nonatomic) UINavigationController *navController;
- (void)saveContext;
- (NSURL *)applicationDocumentsDirectory;
@end

在AppDelegate.m

in didFinishLaunchingWithOptions method under AppDelegate.m

      navController = (UINavigationController *)self.window.rootViewController;
                IPad_HomeViewController *rootVC=(IPad_HomeViewController *)navController.topViewController;
                rootVC.managedObjectContext = self.managedObjectContext;
return YES;

在我的IPad_HomeViewController中，

in my IPad_HomeViewController,

@interface IPad_HomeViewController : UIViewController <UINavigationControllerDelegate>
@property (strong, nonatomic) NSManagedObjectContext *managedObjectContext;
@end

推荐答案

- (BOOL) shouldAutorotate {
    return YES;
}

// for landscape
- (NSInteger) supportedInterfaceOrientations {
    return (1 << UIInterfaceOrientationLandscapeLeft) | 
           (1 << UIInterfaceOrientationLandscapeRight);
}

如上所述，检查特定方向的掩码值：UIInterfaceOrientationMask值。 UIInterfaceOrientationMask

As noted above, check out the mask values for specific orientations : UIInterfaceOrientationMask values.UIInterfaceOrientationMask

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