No Swipe Back when hiding Navigation Bar in UINavigationController

Question

I love the swipe pack thats inherited from embedding your views in a UINavigationController. Unfortunately i cannot seem to find a way to hide the Naviga

Answer 1

Simple, no side-effect Answer

While most answers here are good, they seemingly have unintended side-effects (app breaking) or are verbose.

The most simple yet functional solution I could come up with was the following:

In the ViewController that you are hiding the navigationBar,

class MyNoNavBarViewController: UIViewController {
    
    // needed for reference when leaving this view controller
    var initialInteractivePopGestureRecognizerDelegate: UIGestureRecognizerDelegate?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // we will need a reference to the initial delegate so that when we push or pop.. 
        // ..this view controller we can appropriately assign back the original delegate
        initialInteractivePopGestureRecognizerDelegate = self.navigationController?.interactivePopGestureRecognizer?.delegate
    }

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(true)

        // we must set the delegate to nil whether we are popping or pushing to..
        // ..this view controller, thus we set it in viewWillAppear()
        self.navigationController?.interactivePopGestureRecognizer?.delegate = nil
    }

    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(true)

        // and every time we leave this view controller we must set the delegate back..
        // ..to what it was originally
        self.navigationController?.interactivePopGestureRecognizer?.delegate = initialInteractivePopGestureRecognizerDelegate
    }
}

Other answers have suggested merely setting the delegate to nil. Swiping backwards to the initial view controller on the navigation stack results in all gestures to be disabled. Some sort of oversight, perhaps, of the UIKit/UIGesture devs.

As well, some answers here that I have implemented resulted in non-standard apple navigation behaviour (specifically, allowing for the ability to scroll up or down while also swiping backwards). These answers also seem a bit verbose and in some cases incomplete.