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

Do not use the appearance proxy. Instead, for every view controller, put this code into its viewDidLoad implementation:

UIImage * backButtonImage = 
    [UIImage imageNamed: @"BackButtonGrey.png"];
backButtonImage = 
    [backButtonImage stretchableImageWithLeftCapWidth: 15.0 topCapHeight: 30.0];

UIBarButtonItem* b =
     [[UIBarButtonItem alloc] 
          initWithImage:backButtonImage
          style:UIBarButtonItemStylePlain target:nil action:nil];
self.navigationItem.backBarButtonItem = b;

That will cause the next view controller pushed onto the navigation stack to have a back button consisting of just the image.

(However, I should point out that stretchableImageWithLeftCapWidth:... is deprecated. You should be using resizableImage....)