等待任務在其他視圖上完成

我正在開發一個應用程序，用戶需要先登錄。它實際上是一個tabBar應用程序，我在didFinishLaunchingWithOptions:(NSDictionary *)launchOptions方法中有裝載器登錄視圖。這是我所做的：等待任務在其他視圖上完成

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {  
    [[UIApplication sharedApplication] setStatusBarHidden:YES animated:NO]; 
    // Override point for customization after application launch. 
    authView = [[AuthViewController alloc] init]; 
    // Add the tab bar controller's view to the window and display. 
    [window addSubview:tabBarController.view]; 
    [UIView beginAnimations:@"curldown" context:nil]; 
    [UIView setAnimationDelegate:self]; 
    [UIView setAnimationDuration:1]; 
    [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:authView.view cache:YES]; 
    [window addSubview:authView.view]; 
    [UIView commitAnimations]; 
    [window makeKeyAndVisible]; 
    return YES; 

    [authView release]; 
}

我想要的是第一個視圖控制器等到這個登錄視圖被刪除。有關詳細信息，該如何去掉我在authViewController的authView：

[UIView beginAnimations:@"curlup" context:nil]; 
     [UIView setAnimationDelegate:self]; 
     [UIView setAnimationDuration:1]; 
     [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view.superview cache:YES];   
     [self.view removeFromSuperview]; 
     [UIView commitAnimations];

來源

2010-12-20 Aniruddh Joshi