Swift - How to dismiss all of view controllers to go back to root

ios swift uiviewcontroller navigation
Byoth picture Byoth · Nov 16, 2017 · Viewed 63.2k times · Source

I want a my app can go to a first view controller when every time users want it.

So I want to create a function to dismiss all the view controllers, regardless of whether it is pushed in navigation controllers or presented modally or opened anything methods.

I tried various ways, but I failed to dismiss all the view controllers certainly. Is there an easy way?

Answer

Agent Smith picture Agent Smith · Nov 16, 2017

Try This :

self.view.window?.rootViewController?.dismiss(animated: true, completion: nil)

it should dismiss all view controllers above the root view controller.

If that doesn't work than you can manually do that by running a while loop like this.

func dismissViewControllers() {

    guard let vc = self.presentingViewController else { return }

    while (vc.presentingViewController != nil) {
        vc.dismiss(animated: true, completion: nil)
    }
}

It would dismiss all viewControllers until it has a presentingController.

Edit : if you want to dismiss/pop pushed ViewControllers you can use 

self.navigationController?.popToRootViewController(animated: true)

Hope it helps.

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