NavBar Add command to the "back" button

[lll3mk4]

Hello, I would like to know how to add an Action to the "back" button in a navigation based application. Thanks for any help!

[Bertrand21]

UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithTitle:@"Button Title" style:UIBarButtonItemStyleBordered target:self action:@selector(buttonActionToCall)];
	self.navigationItem.leftBarButtonItem = buttonItem;
	[buttonItem release];

[jimbo]

would that retain the back button though, or replace it with a square bar button? Not quite the same user experience.

[JasonR]

To give the same user experience, you have to draw your own button graphic to imitate the existing back button.