How do i remove text from back button on navbar within Xcode?

Question

I set an arrow custom image to navigation bar by adding the following code in app delegate, it works but now im looking to remove the text completely for back button.

Answer 1

UIBarButtonItem *newBackButton =
[[UIBarButtonItem alloc] initWithTitle:@""
                                 style:UIBarButtonItemStylePlain
                                target:nil
                                action:nil];
[[self navigationItem] setBackBarButtonItem:newBackButton];