how to disable a navigation bar button item in iOS

Question

I have created a navigation controller. In the second view (which is pushed), I have some webservice call and placing a overlay view and setting

self.view.use

Answer 1

Swift 5 It's working for Navigation controller

//Disable

self.navigationController?.navigationBar.isUserInteractionEnabled = false

//Enable

self.navigationController?.navigationBar.isUserInteractionEnabled = true