Dismiss current navigation controller when clicked tab bar

Question

I have got a tab bar controller and in home view controller i have a navigation controller.

-Tab Bar Controller

-- HomeVC

--- VC1 navigation push -> VC2

In VC1 navigation bar is not hidden but inside VC2 is hidden. And im controlling it with viewwillappear and viewwilldisappear.

    override func viewWillAppear(_ animated: Bool) {
    navigationController?.navigationBar.barStyle = .blackTranslucent
}
override func viewWillDisappear(_ animated: Bool) {
    navigationController?.navigationBar.isHidden = false
}

But turning back to the VC1 without swipe, I mean clicking tab bar homeVC icon hides navigation bar. I want to dismiss or pop current viewcontroller and turn back to VC1.

So you want to get back on Top view controller of tab when tab change? — Jaydeep Vora, Aug 12 '17 at 09:25
why, you can hide navigaitonBar from vc2 in `viewDidAppear()` and unhide in vc1 `viewDidAppear()` try this and let me know its working or not — Midhun K Mohan, Aug 12 '17 at 09:26
In VC1 I set navigationBar.isHidden = false in viewWillAppear it is done. — Alper, Aug 12 '17 at 09:39
@Alper when clicking tabbar you want to back onto Top viewcontroller VC1 right? — Jaydeep Vora, Aug 12 '17 at 09:46
@Jaydeep yes there is no problem about turnign back to VC1, but when I turn back to VC1 I want to dismiss VC2 or I dont know if it dismisses automatically — Alper, Aug 12 '17 at 09:48
@Jaydeep popback to VC1 actually. I mean I dont want to VC2 work background. — Alper, Aug 12 '17 at 09:53
@Alper So you have to do is every time when you change tab you have to pop to root Viewcontroller. — Jaydeep Vora, Aug 12 '17 at 09:55
@Jaydeep like Instagram. In home tab bar, you go someone's profile but when you click again home tab bar it turns to the feed. Mine is too. But I dont know if VC2 is working on background or not. — Alper, Aug 12 '17 at 09:58

score 1 · Accepted Answer · answered Aug 12 '17 at 10:01

1

So you can do this by popToRootViewController of UINavigationController. you have to handle this in tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) method of UITabBarDelegate.

override func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) {
    if let rootView = self.viewControllers!["Index of VC1 Controller"] as? UINavigationController {
        rootView.popToRootViewController(animated: false)
    }
}

answered Aug 12 '17 at 10:01

Jaydeep Vora

6,085
1
22
40

Well I have deleted viewWillAppear inside VC1 and wrote your code in tabbar controller, I think it worked :) – Alper Aug 12 '17 at 10:04

Dismiss current navigation controller when clicked tab bar

1 Answers1

Linked