在没有Segue的情况下在UIViewControllers之间移动

Question

I have a storyboard that has 8 UIViewController s on it (and counting). I need to be able to move between any pair of these on demand. Essentially, what I am trying to do is to mimic the functionality of a UITabBarController . Since there are so many of these, I can't just use the UITabBarController (that would solve my problem immediately), so I am using a UIPopoverController with an embedded UITableView to allow the user to choose their destination.

Of course, I could create segues on the storyboard, but to set up all of the segues that I need currently, I would have to create 56 such segues just for the view controllers that I have right now, and potentially many more as things grow.

One idea that I had was to create a 'hub' view controller that doesn't really do anything other than to hold the segues to each of the 'real' VCs and be the delegate of each of those VCs. Then, when I want to switch between VCs, I first dismiss the view controller and pass the segue name for the destination back to the hub. The hub can then immediately perform that segue, which gets me where I want. I think that this would work, but is seems sort of hackish.

Does anyone know how if there is a better way to accomplish this? Thank you!

Answer 1

Why don't you give each one a storyboard identifier, then grab anyone you need with its identifier using this:

UIViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"identifier"];

Then present this view controller via push or present modally

Answer 2

You can easily do this with performSegueWithIdentifier:

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

And then in the prepareForSegue: method, configure what you need to:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString:@"myCustomSegue"]) {
        MyCustomViewController *customViewController = segue.destinationViewController;
        customViewController.customAttribute = @"something";
    }
}

You can also use shouldPerformSegueWithIdentifier: to control navigation.