shouldAutorotateToInterfaceOrientation未被调用

Question

嗨,我现在问题与viewcontroller的方向.以下是我的.h文件.

@interface IPad_HomeViewController : UIViewController <UINavigationControllerDelegate>{
    UIAlertView *alertWithYesNoButtons;
}
@property (weak, nonatomic) IBOutlet UILabel *lblStatus;

@end

我在.m文件中实现以下方法.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
    return NO;
}

然后我做了一个断点.我意识到shouldAutorotateToInterfaceOrientation完全没有被调用.不知道为什么没有被召唤.

请告诉我 谢谢

Answer 1

我认为这是因为您的UINavigationController处理调用.实现以下内容将其发送回viewController.

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

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

// pre-iOS 6 support
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return (toInterfaceOrientation == UIInterfaceOrientationPortrait);
}