屏幕点击后,UIPageViewController子视图移动到状态栏后面

所以,我有一个来自UICollecionView项目的segue被点击到UIPageViewController.当PageViewController显示时,导航栏显示为深灰色,其中的UIView具有奇怪的偏移量.但是,在屏幕上的任何地方点击一次后,我看到一个奇怪的"动画",UIView移动到正确的位置.因此,屏幕上的所有视图都会被移动.

以下是带有此错误的5秒视频链接:http://www.youtube.com/watch？v = CNbwBGvSzIk

PageViewController.m:

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.title = [[[EVAEvent events] objectAtIndex:self.currentIndex] name];
    self.dataSource = self;
    self.delegate = self;
    UIViewController *vc = [self viewControllerAtIndex:self.currentIndex];
    NSArray *controllers = [NSArray arrayWithObjects:vc, nil];
    [self setViewControllers:controllers direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:nil];
}

- (UIViewController *)viewControllerAtIndex:(NSUInteger)index;
{
//    NSLog(@"View Controller At Index = %lu", (unsigned long)self.currentIndex);
    EVAEventInfoViewController *controller = [EVAEventInfoViewController getFromStoryboard];
    EVAEvent *event = [[EVAEvent events] objectAtIndex:index];
    [controller setIndex:index];
    [controller setEvent:event];
    return controller;
}

EVAEventInfoViewController.m:

+ (EVAEventInfoViewController *) getFromStoryboard
{
    //NSLog(@"Creating EVAEventInfoViewController");
    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main_iPhone" bundle:nil];
    EVAEventInfoViewController *this = (EVAEventInfoViewController *)[sb instantiateViewControllerWithIdentifier:@"eventInfoController"];
    return this;
}

非常感谢!