How to call another controller on long press of UITableViewCell in swift?

Question

I am using the below code to display MyEditViewController but all the field outlets in MyEditViewController are nil because of this line let editController = MyEditViewController(). Here I am creating new instance. So outlets are nil now. Is there any other way to call the edit controller without creating instance of it?

@IBAction func editMethod(sender: UILongPressGestureRecognizer) {
        if sender.state == UIGestureRecognizerState.Began {
            let cell = sender.view as! MyTableViewCell
            let editController = MyEditViewController()
            editController.sample= samples[cell.tag]
            presentViewController(editController, animated: true, completion: nil)
        }
    }

Do you already have an instance of it created? (If so, what has a reference to it?) — Phillip Mills, Dec 18 '15 at 14:12
How have you defined `MyEditViewController`? Is it's layout in a storyboard or a xib? — tebs1200, Dec 18 '15 at 14:22

score 1 · Answer 1 · answered Dec 18 '15 at 14:42

1

You should initiate not a Class, you shoud initiate it as an ViewController from Storyboard. So in your case set an "Storyboard-ID" for your Controller.

And then use:

    let editController = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("StoryboardID") as! MyEditViewController

So all outlets should work fine.

answered Dec 18 '15 at 14:42

derdida

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I tried your solution it is working fine but in`MyEditViewController` screen, I am not getting the navigation bar. – Satheshkumar Dec 18 '15 at 18:06
self.navigationController?.navigationBarHidden = true – derdida Dec 18 '15 at 18:34

score 1 · Accepted Answer · answered Dec 18 '15 at 14:51

1

To instantiate a new controller with your outlets you can use a xib

let editController = MyEditViewController(nibName: "MyEditViewController", bundle: nil)

Or you can attribute a StoryboardId to your controller and use with instantiateViewControllerWithIdentifier

let editController = storyboard?.instantiateViewControllerWithIdentifier("MyEditViewControllerStoryboardId") as! MyEditViewController

Or as a suggestion for your case, you can use a different approach using storyboard segues. Read more about it here

performSegueWithIdentifier("PresentMyEditController", sender: self)

answered Dec 18 '15 at 14:51

Leonardo Wistuba de França

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5

The 2nd solution is working fine but in`MyEditViewController` screen, I am not getting the navigation bar. – Satheshkumar Dec 18 '15 at 18:06
That's because you are instantiating a normal UIViewController instead of a UINavigationController. You can create a navigation with: let nav = UINavigationController(rootViewController: editController) and then presentViewController(nav, animated: true, completion: nil) – Leonardo Wistuba de França Dec 18 '15 at 18:30

How to call another controller on long press of UITableViewCell in swift?

2 Answers2