hidesBackButton works but backbarbuttonitem setAction not working

Question

I'd like to change action of my backbutton in one of my ViewController. Instead of going back to the precedent view, I want to perform an action in the same ViewController.

self.navigationItem.hidesBackButton=NO;

hides the BackButton but

[self.navigationController.navigationItem.backBarButtonItem setAction:@selector(performBackNav:)];

and

[self.navigationItem.backBarButtonItem setAction:@selector(performBackNav:)];

do the same as before (going back to precedent ViewController). Nothing changes.

-(void)performBackNav:(id)sender {
//Actions
[self.navigationController popViewControllerAnimated:NO];
}

Any ideas to modify backbarbuttonitem's action ?

Answer 1

Instead of overriding the action method of default back button create a custom button. this is one of the way Try this

{
    UIButton *urButton = [UIButton buttonWithType:UIButtonTypeCustom];
    urButton.frame = urRequiredFrame;
    [urButton setImage:urImage forState:UIControlStateNormal];
    [urButton addTarget:self action:@selector(performBackNav:)
         forControlEvents:UIControlEventTouchUpInside];

    UIBarButtonItem *doneButton =[[UIBarButtonItem alloc] initWithCustomView:urButton];
    self.navigationItem.leftBarButtonItem=doneButton;
}


-(void)performBackNav:(id)sender {
//Actions
[self.navigationController popViewControllerAnimated:NO];
}