防止一个视图控制器自动旋转? [英] Prevent autorotate for one view controller?

问题描述

我的应用可以自动旋转，但我需要其中一个视图仅以纵向模式显示，但不知道如何实现.

My app can autorotate but I need one of the views to only show in portrait mode and don't know how to achieve this.

我试过这个(除其他外)但有问题的视图仍然旋转:

I tried this (among other things) but the view in question still rotates:

//  ViewController.m

-(BOOL)shouldAutorotate
{            
    return NO;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

有人可以指出我做错了什么吗?谢谢.

Can someone kindly point out what I'm doing wrong? Thanks.

-编辑-

适用于 iOS 6.1

It's for iOS 6.1

推荐答案

当涉及到 UINavigationController 时，在 UINavigationController 上创建一个类别并覆盖 supportedInterfaceOrientations.

When a UINavigationController is involved, create a category on the UINavigationController and override supportedInterfaceOrientations.

#import "UINavigationController+Orientation.h"

@implementation UINavigationController (Orientation)

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

- (BOOL)shouldAutorotate {
    return YES;
}

@end  

现在，iOS 容器(例如 UINavigationController)不会咨询他们的孩子来确定他们是否应该自动旋转.

Now, iOS containers (such as UINavigationController) do not consult their children to determine whether they should autorotate.

如何创建类别
1.添加一个新文件(Cocoa touch下的Objective c-category)
2. Category : UINavigationController 的方向
3.在UINavigationController+Orientation.m

How to create a category
1. Add a new file (Objective c- category under cocoa touch)
2. Category : Orientation on UINavigationController
3. Add the above code to UINavigationController+Orientation.m

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