UITabBarController和UINavigationController中的自动旋转视图

Question

我的主视图控制器是UITabBarController，其中4个UINavigationControllers作为标签栏项目。每个导航栏都是几个不同的视图，它们被压入堆栈。

我有一个单一的视图，我想自动旋转，但我不能让willAnimateFirstHalfOfRotationToInterfaceOrientation在视图控制器内被调用。

我试着子类我UITabBarController和UINaviationControllers并添加覆盖了shouldAutorotateToInterfaceOrientation像这样：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    return YES; 
} 

即使在那之后我不能得到的视图旋转。我想也许最上面的UIViewController（包括标签和导航）必须能够旋转。甚至是连锁店的每一个观点。我试过为每个控制器重写shouldAutorotateToInterfaceOrientation，但仍然无法旋转视图。

任何人都完成了这个或有任何建议吗？

在此先感谢！

Answer 1

除了继承你的tabBarController因为你是压倒一切的houldAutorotateToInterfaceOrientation，你必须做到以下几点：

在其中要添加一个视图控制器的viewDidLoad方法来进行旋转：

self.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 

加入旋转控制器要在其中添加视图此委托方法：

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation 
{ 
    //NSLog(@"didRotateFromInterfaceOrientation"); 


    if((fromInterfaceOrientation == UIInterfaceOrientationPortrait) || 
     (fromInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)) 
    {  

     YourAppDelegate *mainDelegate = (YourAppDelegate *)[[UIApplication sharedApplication] delegate]; 
    [mainDelegate.tabBarController.view addSubview: viewToBeRotated]; 

    [viewToBeRotated setHidden:NO]; 

    return; 

} 

if(fromInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || fromInterfaceOrientation == UIInterfaceOrientationLandscapeRight) 
{ 
    [viewToBeRotated removeFromSuperview]; 
    [self.view setHidden:NO]; 
} 

}

您可能还需要添加下面的方法：

- (void)willAnimateFirstHalfOfRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation 
               duration:(NSTimeInterval)duration { 

if (toInterfaceOrientation == UIInterfaceOrientationPortrait) 
{ 
    //self.view = self.portrait; 
    YourAppDelegate *mainDelegate = (YourAppDelegate *)[[UIApplication sharedApplication] delegate]; 
    [viewToBeRotated removeFromSuperview]; 
    mainDelegate.tabBarController.view.transform = CGAffineTransformIdentity; 
    mainDelegate.tabBarController.view.transform = CGAffineTransformMakeRotation(degreesToRadian(0)); 
    mainDelegate.tabBarController.view.bounds = CGRectMake(0.0, 0.0, 300.0, 480.0); 

} 
else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft) 
{ 
    YourAppDelegate *mainDelegate = (YourAppDelegate *)[[UIApplication sharedApplication] delegate]; 
    [mainDelegate.tabBarController.view addSubview: viewToBeRotated]; 
    mainDelegate.tabBarController.view.transform = CGAffineTransformIdentity; 
    mainDelegate.tabBarController.view.transform = CGAffineTransformMakeRotation(degreesToRadian(-90)); 
    mainDelegate.tabBarController.view.bounds = CGRectMake(0.0, 0.0, 460.0, 320.0); 
} 
else if (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) 
{ 


//self.view = self.portrait; 
     YourAppDelegate *mainDelegate = (YourAppDelegate *)[[UIApplication sharedApplication] delegate]; 
     [viewToBeRotated removeFromSuperview]; 
     mainDelegate.tabBarController.view.transform = CGAffineTransformIdentity; 
     mainDelegate.tabBarController.view.transform = CGAffineTransformMakeRotation(degreesToRadian(180)); 
     mainDelegate.tabBarController.view.bounds = CGRectMake(0.0, 0.0, 300.0, 480.0); 
    } 
    else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight) 
    { 
     YourAppDelegate *mainDelegate = (YourAppDelegate *)[[UIApplication sharedApplication] delegate]; 
     [mainDelegate.tabBarController.view addSubview: viewToBeRotated]; 
     mainDelegate.tabBarController.view.transform = CGAffineTransformIdentity; 
     mainDelegate.tabBarController.view.transform = CGAffineTransformMakeRotation(degreesToRadian(90)); 
     mainDelegate.tabBarController.view.bounds = CGRectMake(0.0, 0.0, 460.0, 320.0); 
    } 
} 

你也可能想看看

Rotating the iPhone, and instantiating a new UIViewController

TabBarController and navigationControllers in landscape mode

Answer 2

子类的UITabBarController和重写此方法曾工作：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    return YES; 
} 

我认为我真正的问题是XCode没有编译更新的代码。我做了建立清洁，触摸并重新启动XCode和模拟器，并最终采取了变化。

Answer 3

您可以使用一个子类的UITabBarController（或使用加法），要求所选择的navigationController为visibleViewController的旋转请求响应：

@implementation RotatingTabBarController 
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
     if([self.selectedViewController isKindOfClass:[UINavigationController class]]){ 
      return [[(UINavigationController*)self.selectedViewController visibleViewController] shouldAutorotateToInterfaceOrientation:interfaceOrientation]; 
     } else { 
      return [self.selectedViewController shouldAutorotateToInterfaceOrientation:interfaceOrientation]; 
     } 
} 
@end