Action to Navigation bar back button

Question

I want to show an alert with Confirmation when user clicks on back button. This is how I\'m trying to add action.

self.navigationItem.hidesBackButton = true
         


        

Answer 1

I think this answer should do the job.

You basically create your button with the default style and register a selector.

And you might try this for a backButton instead of leftButton:

Objective-C

UIBarButtonItem *backBtn = [[UIBarButtonItem alloc] init];
[desVC.navigationItem setBackBarButtonItem:backBtn];

Swift

let backBtn = UIBarButtonItem()
self.navigationItem.backBarButtonItem = backBtn