Usually when you use a UINavigationController you get a back button that has an arrow on the left side of it. The thing is I am not using a UINavigationController so thats why I am asking. Anyway here is a picture:

So far I have a regular UIBarButtonItem which currently is just square without that arrow on the left side of it.
Is there a way to make a button that has an arrow on the left side like that and add it to my UINavigationBar? I have also looked around and it seems that UIButton type 101 is undocumented and will cause a rejection. I need a solution that will be accepted!
You can give the button a background image that makes it look like the native angled button:
You might need to tweak that, but it’s in the right direction I believe.