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iOS

Posted by M Talebi
M Talebi
3,125 Points

How to access assign something to a navigationItem of a ViewController from another view controller?

ViewController A:

self.navigationItem.titleView = ActivityIndicator.showActivityIndicator("Updating location...")

... after some time the self.navigationItem.titleView should be set to nil from another view controller:

ViewController B: ViewControllerA.navigationItem.titleView = nil

but that doesn't work.

1 Answer

Mohamed Moukhtar
PLUS
Mohamed Moukhtar
Courses Plus Student 6,151 Points
Mohamed Moukhtar
Mohamed Moukhtar
Courses Plus Student 6,151 Points

Hello Talebi,

Please use the following code inside the calling method in view controller B:

    let splitViewController = self.splitViewController
    let navigationController = splitViewController?.viewControllers.first as? UINavigationController
    let masterViewController = navigationController?.viewControllers[0] as? MasterViewController // view controller A
    masterViewController?.navigationItem.titleView = nil

I hope that this code works for you, and keep in mind that I assume you are using a master/detail application template with a split view controller.

M Talebi
M Talebi
3,125 Points

Hi. Thanks but I'm not using a split view controller. I'm trying to access navigationItem.titleView of ViewCtrl B from ViewCtrl A (both are TableViewControllers)