I need to change color on the default \"self.navigationItem.backBarButtonItem\". To accomplish this I´ve created an custom Button class and implemented it like this:
If you want the button to be blue (like a Done button) and have the title "Save" you can use one of the built in bar button item types:
UIBarButtonItem *item = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(myAction:)] autorelease];