Segues not working programmatically

Question

I migrated a project from using XIB's to Storyboard, according to these instructions: https://stackoverflow.com/a/9708723/2604030 It went good. But I can't make the segues work programmatically, and I need to use them this way, because I have 2 buttons that link to the same ViewController, with different types, hope you understand why from this image.

enter image description here There are 2 difficulty mode buttons. The code I use:

`- (IBAction)btnNormalAct:(id)sender {
    LevelController *wc = [[LevelController alloc] initWithNibName:@"LevelController" type:0];
    [self.navigationController pushViewController:wc animated:YES];
}

- (IBAction)btnTimedAct:(id)sender {
    LevelController *wc = [[LevelController alloc] initWithNibName:@"LevelController" type:1];
    [self.navigationController pushViewController:wc animated:YES];
}`

This worked when I used XIB's, and I am sure I linked everything correctly in the storyboard's VCs. The seagues works if I make them from the storyboard. But how can I manage this situation.

ALSO: are those lines good when changing from XIB's to Storyboard? Is that the right way to do this change (the way shown in the link above)?

    - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
}

score 5 · Accepted Answer · answered Aug 22 '13 at 18:51

5

You can use the PrepareForSegue method to set things on the incoming view controller before it is called:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // Make sure your segue name in storyboard is the same as this line
    if ([[segue identifier] isEqualToString:@"YOUR_SEGUE_NAME_HERE"])
    {
        // Get reference to the destination view controller
        LevelController *vc = [segue destinationViewController];

        // Pass any objects to the view controller here, like...
        [vc setType:1];
    }
}

answered Aug 22 '13 at 18:51

Kevin DiTraglia

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1

Worked like charm ! Thanks a lot :) – Sebyddd Aug 22 '13 at 18:57
And if you want to fire off the segue in code use: performSegueWithIdentifier:sender: – hashier Aug 22 '13 at 23:46

Wain · Answer 2 · 2013-08-22T19:00:45.243

1

Don't use the button actions. Connect the segues to the buttons and give the segues unique identifiers. Then implement prepareForSegue:sender: in your controller. When the method fires, check the seque identifier and set the appropriate type on the `destinationViewController'.

When using a storyboard you should instantiate your controllers from the storyboard rather than using initWithNibName:bundle:. This is done by giving each view controller a unique identifier and then calling instantiateViewControllerWithIdentifier: (or, for the initial view controller, just instantiateInitialViewController) on the storyboard which you can get from the current controller (or if required with storyboardWithName:bundle:).

edited Aug 22 '13 at 19:00

answered Aug 22 '13 at 18:52

Wain

118,658
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Thank you ! Can you explain me how to instantiate controllers from the storyboard, please ? – Sebyddd Aug 22 '13 at 18:59
1

@Sebyddd You can set the class on the right-hand pane to your controller within the storyboard, I don't have XCode open to give you the specific name of the tab, but one of them let's you pick which controller to use. – Kevin DiTraglia Aug 22 '13 at 19:05
I find that out. I tried this: http://i.cubeupload.com/tQZjPL.png but i get that error... – Sebyddd Aug 22 '13 at 19:10

Segues not working programmatically

2 Answers2