CODEWITHSUNDEEP
iosswift
Natu Myers
Natu Myers

Reputation: 496

Error Trying to Seque to Navigation View Controller Cannot convert value of type 'UIViewController' to type 'UINavigationController' in coercion

Actual error is Cannot convert value of type 'UIViewController' to type 'UINavigationController' in coercion

Inside the code for view controller before I segue to my nav. view controller I have the below code in my prepare

override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
    if (segue.identifier == "SegueAfterJoin2") {
       // NOTE! THIS IS TWEAKED with "as UINavigationController"
        var nextViewCont:DashboardNavViewController = segue.destinationViewController as UINavigationController;

        // PASS VARS FROM THIS VIEW TO NEXT
        nextViewCont.passedPassword_toViewDashboard = passedPassword_toView2
        nextViewCont.passedEmail_toViewDashboard = passedUsername_toView2
        nextViewCont.passedUsername_toViewDashboard = passedEmail_toView2
        nextViewCont.passedFocus_toViewDashboard = selectedFocus

    }
}

My nav. view controller class is defined as this: class DashboardNavViewController: UIViewController {. Should it be declared as something else?

Upvotes: 1

Views: 535

Answers (1)

Dharmesh Kheni
Dharmesh Kheni

Reputation: 71854

Just replace 

var nextViewCont: DashboardNavViewController = segue.destinationViewController as UINavigationController

with 

var nextViewCont = segue.destinationViewController as! DashboardNavViewController

And if you want to present UINavigationController then your DashboardNavViewController must be a subclass of UINavigationController which is right now subclass of UIViewController so you can not cast it as UINavigationController same as your error says.

And your navigation view controller class should defile like shown below:

class DashboardNavViewController: UINavigationController {

Upvotes: 2

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