Simple Splash Screen for iOS

gistfile1.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
    self.window.rootViewController = self.viewController;
    
    UIImageView*imageView=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"Default.png"]];
    [[self.viewController view] addSubview:imageView];
    [[self.viewController view] bringSubviewToFront:imageView];
    
    [self.window makeKeyAndVisible];
    
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 5 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
        [UIView transitionWithView:self.window
                          duration:0.25f
                           options:UIViewAnimationOptionTransitionNone
                        animations:^(void) {
                            [application setStatusBarHidden:NO withAnimation:UIStatusBarAnimationFade];
                            imageView.alpha = 0.0f;
                        }
                        completion:^(BOOL finished) {
                            [imageView removeFromSuperview];
                        }
         ];
    });
    
    return YES;
}

Does not work for tab bar controllers.