How can I show a custom image in navigation bar back button instead of default buttons which are shown by nav bar itself

Question

On navigating to any view in an app which has navigation controller implemented, it shows a back button to go to the previous view. Is there a way I can use custom image instead

Answer 1

I found that none of the solutions actually solved the BACK UIBarButton and also provided its hidden behavior if the view controller is root.

-(void)popViewControllerWithAnimation {
[self.navigationController popViewControllerAnimated:YES];
}

- (void)viewWillAppear:(BOOL)animated
{
   [super viewWillAppear:animated];
   if([self.navigationController.viewControllers objectAtIndex:0] != self)
   {
       UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 26, 26)];
       [backButton setImage:[UIImage imageNamed:@"back"] forState:UIControlStateNormal];
       [backButton setShowsTouchWhenHighlighted:TRUE];
       [backButton addTarget:self action:@selector(popViewControllerWithAnimation) forControlEvents:UIControlEventTouchDown];
       UIBarButtonItem *barBackItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
       self.navigationItem.hidesBackButton = TRUE;
       self.navigationItem.leftBarButtonItem = barBackItem;
   }
}