Not able to create instance for viewcontroller in other viewcontrollers in Swift

Question

I have a viewcontroller with required init?(coder aDecoder: NSCoder) , i want to create instance in other class. here is my code

class ViewControllerB: UIViewController { 
@IBOutlet weak var tableview: UITableView!

required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
}}

I want to create instance for ViewControllerB in ViewControllerA.

Partho Biswas · Accepted Answer · 2017-03-22 10:28:39Z

1

You can fix it in a few ways.

Option 1

let viewController = ViewControllerB(nibName: nil, bundle: nil)

Option 2

Change your ViewControllerB like following.

class ViewControllerB: UIViewController {
    @IBOutlet weak var tableview: UITableView!

    convenience init () {
        self.init(nibName: nil, bundle: nil)
    }
}

OR

class ViewControllerB: UIViewController {
    @IBOutlet weak var tableview: UITableView!

    required init(coder aDecoder: NSCoder) {
        fatalError("This class does not support NSCoding")
    }
    override init (frame : CGRect) {
        super.init(frame : frame)
    }
    convenience override init () {
        self.init(frame:CGRectZero)
    }
}

And now you can call

let viewController = ViewControllerB()

edited Mar 22, 2017 at 10:28

answered Mar 22, 2017 at 10:23

Partho Biswas

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Comments

Jitendra · Accepted Answer · 2017-03-22 09:08:16Z

0

Do like this

let viewController = ViewControllerB()

This will give the instance of ViewControllerB and then do what you want.

edited Mar 22, 2017 at 9:08

answered Mar 22, 2017 at 8:59

Jitendra

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1 Comment

Boosa Ramesh Over a year ago

thanks for your quick response, actually it has required init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) }}, so your answer doesnt work

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