ios 6 iPhone window.rootViewController崩溃

Question

我的应用程序在iPad和iPhone上都可以正常使用iOS 5.1。在iOS 6应用程序可以在iPad上正常工作，但在iPhone上设置window.rootViewController = navigationViewController时崩溃。我在application didFinishLaunchingWithOptions中的这段代码处设置了异常断点，该断点停止执行。我甚至尝试添加它作为[window addSubView:navigationViewController.view]，但没有运气。有没有人遇到过类似的问题。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions 
{ 
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 
    rootViewController = [[SpringboardViewController alloc] initWithNibName:@"SpringboardViewController" bundle:nil]; 
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:rootViewController]; 

    self.window.rootViewController = nav; 
    self.window makeKeyAndVisible]; 
    return YES; 
} 

Answer 1

你能写出一个异常吗？

看看这些问题

applications expected to have a root view controller console

Applications are expected to have a root view controller at the end of application launch

Answer 2

感谢您的答复家伙我想通了这个问题，问题出在application supportedInterfaceOrientationsForWindow我在那里，因为应用程序返回UIInterfaceOrientationPortrait代替UIInterfaceOrientationMaskPortrait调试器被击中self.window.rootViewController = nav，我认为问题是与此声明。

谢谢Ravindharan和Ogres。