iOS 6旋转不工作 [英] iOS 6 rotation not working

问题描述

我改写了UINavigationController来实现这些方法：

   - （BOOL）shouldAutorotate 
 {
 return [[self.viewControllers lastObject] shouldAutorotate]; 
} 
  - （NSUInteger）supportedInterfaceOrientations 
 {
 return [[self.viewControllers lastObject] supportedInterfaceOrientations]; 
} 
  - （UIInterfaceOrientation）preferredInterfaceOrientationForPresentation 
 {
 return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation]; 
} 
  

现在从我的第一个视图，我模态地呈现这个MSNavigationPaneViewController 这里就像一个Facebook侧滑动标签栏控制器。

我需要在这里显示的我的视图控制器中的一个才显示横向，而应用程序的其余视图只有纵向。

所有在其他视图控制器已添加：

   - （NSUInteger）supportedInterfaceOrientations 
 {
 return UIInterfaceOrientationMaskPortrait; 
} 
  - （BOOL）shouldAutorotate 
 {
 return UIInterfaceOrientationMaskPortrait; 
} 
  

并且在我想添加的景观中添加：

   - （BOOL）shouldAutorotate 
 {
 return UIInterfaceOrientationMaskLandscape; 
} 
  - （NSUInteger）supportedInterfaceOrientations 
 {
 return UIInterfaceOrientationMaskLandscape; 
} 
  

但是我的所有视图都旋转。

如果我在这些其他视图中将 shouldRotate 更改为NO，那么它们保持在纵向，我想要的视图是可以旋转的，但是我不能让它自己旋转。
此外，如果我回到另一个具有 shouldRotate = NO; 的视图，一旦旋转，则不能旋转回到纵向。

$

我已经在这里工作了几个小时，不能工作。

EDIT -----

我现在有这个一半工作，并开始一个新的问题，以获得自动旋转工作这里

解决方案

看起来你对在shouldAutorotate中返回的东西感到困惑。使用以下代码作为示例。

由于iOS正在调用应用程序的shouldAutorotate以响应加速度计中的事件，因此它已经知道新的方向;如果你的应用程序回答是，iOS可以检查当前的方向对照支持的列表，并提出一个决定，而无需你的应用程序查询当前的方向。

// iOS 6

   - （BOOL）shouldAutorotate {
 return YES; 
} 
 
  - （NSUInteger）supportedInterfaceOrientations {
 return UIInterfaceOrientationMaskPortrait; 
} 
  

此外，您可以让呈现模态视图控制器的视图控制器通知它的旋转。使用：presentViewController：animated：completion：呈现视图控制器。

如果添加 application：supportedInterfaceOrientationsForWindow：，请务必遵守以下代码指南。该文档声明，如果在VC上实现 supportedInterfaceOrientations ，它应该覆盖应用程序委托。但是，人们已经注意到，如何将 rootViewController 添加到主窗口中会有所不同。

使用：

  window.rootViewController = viewController 
  

而不是：

  [window addSubview：viewController.view]; 
  

I have overridden my UINavigationController to implement these methods:

-(BOOL)shouldAutorotate
{
    return [[self.viewControllers lastObject] shouldAutorotate];
}
-(NSUInteger)supportedInterfaceOrientations
{
    return [[self.viewControllers lastObject] supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}

Now from my first view, I modally present this MSNavigationPaneViewController here which is like a Facebook side sliding tab bar controller.

I need 1 of my view controllers that are displayed within here to be displayed Landscape only while the rest of the app's views are Portrait only.

So in all my other View Controllers I have added:

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}
- (BOOL)shouldAutorotate
{
    return UIInterfaceOrientationMaskPortrait;
}

and in the one that I want Landscape i've added:

- (BOOL)shouldAutorotate
{
    return UIInterfaceOrientationMaskLandscape;
}
-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

However all my views rotate.

If I change shouldRotate to NO on these other views then they stay in Portrait and the view I want to be Landscape can be rotated, however I can't get it to rotate itself. Also, once rotated if I go back to another view that has shouldRotate = NO; then it can't be rotated back to Portrait.

I've been at this for hours now and can't get it to work.

Thanks

EDIT -----

I have this half working now and have started a new question to get the auto rotation working here

解决方案

It seems you are confusing what to return in shouldAutorotate. Use the following code as an example.

Since iOS is making a call into your app's shouldAutorotate in response to an event from the accelerometer, it already knows the new orientation; if your app answers 'YES`, iOS could then check the current orientation against the list of supported ones, and come up with a decision without your app querying for the current orientation.

// iOS 6

- (BOOL)shouldAutorotate {
    return YES;
}

- (NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskPortrait;
}

Also, You can let the view controller that presents your modal view controller inform it of rotation. Use: presentViewController:animated:completion: to present the view controller. presentModalViewController:animated: is deprecated if by chance you are using it.

If you add application:supportedInterfaceOrientationsForWindow:, make sure to follow the code guideline below. The documentation states that if you implement supportedInterfaceOrientations on a VC it should override the app delegate. However, people have noticed it makes a difference as to how you add the rootViewController to the main window.

Use:

window.rootViewController = viewController

instead of:

[window addSubview:viewController.view];

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