Question

There is a basic form, pressing button call method performSegueWithIdentifier which shows the popover window. How could I black out (dim) the main view window until the popover is active?

I’ve tried to use the library SVProgressHUD like this:

- (IBAction)publishButtonAction:(id)sender {
    [SVProgressHUD showWithMaskType:SVProgressHUDMaskTypeBlack];
    [self performSegueWithIdentifier:@"fbshareSigue" sender:self];
    [SVProgressHUD dismiss];
}

Obtained for a split second – until there is a popover-window.

Where must I insert this code, if I try this?:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

    if ([[segue identifier] isEqualToString:@"fbshareSigue"]) {
        OFAFBShareViewController *svc = (OFAFBShareViewController *) [segue destinationViewController];
        UIStoryboardPopoverSegue *popoverSegue = (UIStoryboardPopoverSegue *)segue;
        svc.postBlock = self.postInitBlock;
        [svc setClosePopWindow:[popoverSegue popoverController]];
    }
}

    - (IBAction)publishButtonAction:(id)sender {
        UIView *dimView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
        dimView.backgroundColor = [UIColor blackColor];
        dimView.alpha = 0.5f;
        dimView.tag = 1111;
        dimView.userInteractionEnabled = NO;
        [self.view addSubview:dimView];

        [self performSegueWithIdentifier:@"fbshareSigue" sender:self];
}

  /* This code should be put in the other method where you are removing the popup.. Because it will remove the dim view. here is the wrong place for this code*/  

 /* for (UIView *view in [self.view subviews]) {
        if (view.tag == 1111) {
            [view removeFromSuperview];
        }
    }*/

Dim doesn’t work…

====================

I have View OFAResultViewController that calling Popover (OFAFBShareViewController):

...
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

    if ([[segue identifier] isEqualToString:@"fbshareSigue"]) {
        OFAFBShareViewController *svc = (OFAFBShareViewController *) [segue destinationViewController];
        UIStoryboardPopoverSegue *popoverSegue = (UIStoryboardPopoverSegue *)segue;
        svc.postBlock = self.postInitBlock;
        [svc setClosePopWindow:[popoverSegue popoverController]];
    }
}

- (IBAction)publishButtonAction:(id)sender {
    UIView *dimView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
    dimView.backgroundColor = [UIColor blackColor];
    dimView.alpha = 0.5f;
    dimView.tag = 1111;
    dimView.userInteractionEnabled = NO;
    [self.view addSubview:dimView];
    [self performSegueWithIdentifier:@"fbshareSigue" sender:self];    
}
...

In OFAFBShareViewController I’m trying to close the dim view:

...
- (IBAction)cancelButtonAction:(id)sender {
    [closePopWindow dismissPopoverAnimated:YES];
    for (UIView *view in [self.view subviews]) {
            if (view.tag == 1111) {
                [view removeFromSuperview];
            }
}
...

But it doesn’t work again…

Answer 1

You can use the following code, when you display the popup.

In OFAFBShareViewController

- (void) loadView
{
       [super loadView]; 
       UIView *dimView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
        dimView.backgroundColor = [UIColor blackColor];
        dimView.alpha = 0.5f;
        dimView.tag = 1111;
        dimView.userInteractionEnabled = NO;
        [self.view addSubview:dimView];
}

After popup removed, delete this view from super view using the tag.

After iOS 5.0 there is a public API method also introduced:

======================================================

To remove the view you can use this code:

 for (UIView *view in [self.view subviews]) {
                if ([view.tag == 1111]) {
                    [view removeFromSuperview];
                }
            }

Leave your Remove Dim View code as it is. Only Change super.view to self.view again.

It’ll work for you then.

Hope it works for you…