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Steven Rayzman
2,423 PointsPop to Particular ViewController
How can I pop to a particular viewController after pressing a button, using swift.
1 Answer
Stone Preston
42,016 Pointsyou can pop to a specific index of the view controller stack using the popToViewController method:
// pops to the 3rd controller in the stack
navigationController!.popToViewController(navigationController!.viewControllers[2], animated: false)
Steven Rayzman
2,423 PointsSteven Rayzman
2,423 PointsWhen I tried your code I got an error saying that
'UINavigationController?' does not have a member named 'popToViewController'Stone Preston
42,016 PointsStone Preston
42,016 Pointsforce unwrap the navigationController optional by placing a ! after it
Steven Rayzman
2,423 PointsSteven Rayzman
2,423 PointsI have tried that, and I get the error:
Type 'AnyObject' cannot be implicitly downcast to 'UIViewController'; did you mean to use 'as' to force downcast?
Stone Preston
42,016 PointsStone Preston
42,016 Pointsso do exactly what that says and downcast the item in the array as a view controller:
navigationController!.popToViewController(navigationController!.viewControllers[2] as UIViewController, animated: false)Steven Rayzman
2,423 PointsSteven Rayzman
2,423 PointsThank you.