关闭视图控制器时，它会忽略旋转规则

Question

我有一个带有导航控制器的VC。也不应该自动旋转，它们都不会在屏幕上显示。但如果我在横向模式下解除VC2，VC1将处于横向模式..

这就是我所拥有的： VC1：

UINavigationController *navigationController = [[UINavigationController alloc]
                                                    initWithRootViewController:VC2];
    navigationController.modalPresentationStyle=UIModalPresentationFullScreen;
    navigationController.navigationBar.barStyle=UIBarStyleDefault;
    navigationController.navigationBar.backgroundColor = [UIColor whiteColor];
    navigationController.navigationBar.translucent = YES;
    navigationController.delegate=self;
    [self presentViewController:navigationController animated:YES completion:nil];

-(BOOL)shouldAutorotate
{
    return NO;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}


- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

VC2：

-(BOOL)shouldAutorotate
{
    return NO;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

我在UINavigationController上也有一个类别，它帮助我在其他屏幕上设置方向。

- (BOOL)shouldAutorotate {
    if ([self.topViewController respondsToSelector:@selector(shouldAutorotate)]) {
        return [self.topViewController shouldAutorotate];
    } else {
        return YES;
    }
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {

    if ([self.topViewController respondsToSelector:@selector(preferredInterfaceOrientationForPresentation)]) {

        return [self.topViewController preferredInterfaceOrientationForPresentation];
    }

    return self.interfaceOrientation;
}

- (NSUInteger)supportedInterfaceOrientations {
    if ([self.topViewController respondsToSelector:@selector(supportedInterfaceOrientations)]) {
        return [self.topViewController supportedInterfaceOrientations];
    }

    return UIInterfaceOrientationMaskAll;
}