make opaque status bar even with self.navigationController.hidesBarsOnSwipe = YES

gistfile1.txt

- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView {
    self.navigationController.navigationBarHidden = NO;
}

-(void)opaqueStatusBar:(UIScrollView *)scrollView
{
    scrollView.delegate = self;
    UIView *statusBarBg = [self.navigationController.view viewWithTag:3000];
    if (statusBarBg == nil)
    {
        CGRect statusBarFrame = CGRectMake(0, 0, 1000, 20);
        statusBarBg = [[UIView alloc] initWithFrame:statusBarFrame];
        statusBarBg.tag = 3000;
        statusBarBg.backgroundColor = [UIColor whiteColor];
        [self.navigationController.view addSubview:statusBarBg];
        statusBarBg.hidden = [self shouldHideFakeStatusBar:self.view.frame.size];
    }
}

-(BOOL)shouldHideFakeStatusBar:(CGSize)size
{
    BOOL landscape = NO;
    BOOL iPad = (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad);
    if (size.width > size.height)
        landscape = YES;
    BOOL hideFakeBar = landscape && !iPad;
    return hideFakeBar;
}

- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
    [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context)
     {
         BOOL hideFakeBar = [self shouldHideFakeStatusBar:size];
         UIView *view = [self.navigationController.view viewWithTag:3000];
         view.hidden = hideFakeBar;
         NSLog(@"hiding fakebar=%d",hideFakeBar);
         
     } completion:^(id<UIViewControllerTransitionCoordinatorContext> context)
     {
         
     }];
    
    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
}