Conditional Segue navigation from UITableViewCell based on response to UIAlertView

Question

My problem seems like a generic problem, yet can't seem to find an answer for it.

I have a situation where when the user taps on a custom UITableViewCell, I would like to display an alert and then based on the response to the alert, either stay on the same view (user selecting cancel) or display another view (if the user selects proceed). And I would like to do this using the storyboard feature & segues.

How would one go about this? Do you have to do this the old fashioned way?

Answer 1

@user, Just create the alertView the old fashion way; I do know of any storyboard feature to do this differently. Where storyboard can help is with the segues. You can call the segues programmatically. With you alert view cancel button you can just return (i.e. do nothing). For the other option, to display another view, you can programmatically call a segue to transition to the desired view. If you don't have the proper segue already defined for some other reason on your storyboard, just create a button out and use that to create the segue and name it. Name the segue by clicking on it in storyboard and use the attributes inspector to give it name (identifier). Then hide the button or put it out of the view. I typically put these type of button on the toolbar and use spacers to keep them out of the view. Here's some sample code:

Call the segue from the alert view delegate like this:

[self performSegueWithIdentifier: @"done" sender: self];

Also implement this method to do any necessary task to prepare for the segue:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:@"done"]) 
    {
        //    [[segue destinationViewController] setManagedObjectContext:self.managedObjectContext];
        //    [[segue destinationViewController] setSelectedClient:selectedClient];
    }
}

Answer 2

You can create segues directly from the startingViewController to multiple destinationViewControllers that can then be "performed" programmatically. You do not need to create any hidden buttons for them, which does seem like a hack.