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.userInteractionEnabled = NO ;

Once web service call is complete, then I am reverting to

self.view.userInteractionEnabled = YES ;

When I do this, every other buttons except the buttons on the navigation bar are disabled. How to disable those two navigation bar button items ? (a button similar to back button, which pops to first view controller and another button which gives info about help).

I have tried using self.navigationItem.backBarButtonItem.enabled = NO. But still I am able to tap on the button and can navigate to first screen. How can I disable these two buttons ?

Answer 1

Try this

Recommended

self.navigationItem.leftBarButtonItem.enabled = NO;  self.navigationItem.rightBarButtonItem.enabled = NO; 

Or Simply Disable by

on Edge case

self.view.window.userInteractionEnabled = NO; 

Update: Recently Apple doesn't allow the back button to enable / disable. Instead of that we can hide it.

self.navigationItem.hidesBackButton = YES; 

Answer 2

You can do the following if you are running on Swift

self.navigationItem.rightBarButtonItem?.enabled = true 

This snippet will disable the button.