After pushViewController, how to disable backBarButtonItem?

Question

After pushViewController, how to disable backBarButtonItem so that return will not be possible?

Answer 1

navigationItem.hidesBackButton = YES

Answer 2

if you are using a storyboard, click on “Navigation” and add the path “hidesBackButton” to the Key Path attribute tag.

Answer 3

, :

[self.navigationController setNavigationBarHidden: YES animated:YES];