iphone - 虽然我有uinavigationcontroller的类别来转发调用，但应该没有调用shouldAutorotate

Question

我有点困惑。
我希望我的应用程序完全在我的5个Viewcontrollers中之一旋转。
我为UINavigationcontroller创建了一个Category，实现了在ios 6中旋转所需的方法。

#import "UINavigationController+IOS6Rotation.h"


@implementation UINavigationController (IOS6Rotation)

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

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

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    if (INTERFACE_IS_PAD) {
        return UIInterfaceOrientationLandscapeLeft;
    }
    else{
        return UIInterfaceOrientationPortrait;
    }    
}
@end

我还在所有不应旋转的ViewController中实现了这些方法。

- (BOOL)shouldAutorotate {
    return NO;
}

- (BOOL)supportedInterfaceOrientations {
    if (INTERFACE_IS_PAD) {
        return UIInterfaceOrientationMaskLandscape;
    }
    else{
        return UIInterfaceOrientationMaskPortrait;
    }
}

应该旋转的人在shouldAutorotate中返回YES

在启动时，我使用一个额外的Viewcontroller来显示启动画面。这样，SplashScreen将显示为RootViewController。

vc_splash = [[SplashScreenViewController alloc] initWithNibName:@"SplashScreenViewController" bundle:[NSBundle mainBundle]];
[self.window setRootViewController:vc_splash];

DefaultSHKConfigurator *configurator = [[MySHKConfigurator alloc] init];
[SHKConfiguration sharedInstanceWithConfigurator:configurator];
[self.window makeKeyAndVisible];  

当我完成数据库的加载后，初始屏幕将替换为主屏幕。

self.viewController = [[MainViewController alloc] initWithNibName:@"MainViewController_iPhone" bundle:nil];
    UINavigationController *navControl = [[UINavigationController alloc] initWithRootViewController: self.viewController];
    [self.window setRootViewController: navControl];

现在的问题是，只有我的Splashscreen调用才应该自动旋转，而其他屏幕则不应该。
有人可以告诉我我是否在这里错过了一些必需品吗？
我以为我已经做了所有必要的工作以使bl **** y自动旋转能够在ios 6中正常工作...

提前谢谢
小牛第1

**更新**
如果您希望iPad在横向模式下启动，请确保在shouldAutoRotate中返回YES，

Answer 1

这对我来说是工作添加supportedInterfaceOrientationsForWindowapplication中的方法delegate:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
  UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
  [navigationController shouldAutorotate];
  [navigationController preferredInterfaceOrientationForPresentation];
  return UIInterfaceOrientationMaskAll;
}

还要在 application delegate中添加它:

@implementation UINavigationController (Rotation_IOS6)

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

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

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
  return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}
@end