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Old Dec 27, 2012, 07:38 PM   #1
ramy1989
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Changing the style of a bar button item

Let's say that I have a navigation controller and I push a view controller.By doing this, a button that leads me back to the previous controller is created.

I've found the navigation item holding the button this way:

Code:
UINavigationItem* backItem=self.navigationController.navigationBar.topItem;
If I change it's title also the button title changes.

But the only button is backItem.rightBarButtonItem, even if the button is displayed at the left, the other two buttons (back and right) are nil.

If I try changing the button item this way:

Code:
backItem.rightBarButtonItem.style= UIBarButtonItemStylePlain;
The title of the button leading me back doesn't change, is that another button? How do I change the style of the button leading me back to the other view controller?
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Old Jan 3, 2013, 02:03 AM   #2
polarsirkelen
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Try something like this:

Code:
UIBarButtonItem *previous = [[UIBarButtonItem alloc] 
                             initWithTitle:@"Search"
                             style:UIBarButtonItemStyleBordered
                             target:self
                             action:@selector(SearchAction:)];
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Old Jan 3, 2013, 04:40 PM   #3
MattInOz
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Is there a Reason setting.
yourViewController.navigationItem.backButtonItem = someButton;
wouldn't work for you?

If you do that to your viewControllers when you set them up, when you push the viewController on to the navigation controller the buttons will be those set for the visible viewController. You don't have to worry about reseting each time that view will appear.
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Old Jan 7, 2013, 08:24 AM   #4
KoolStar
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You must change the button before you push on the new view controller.
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Old Jan 7, 2013, 05:05 PM   #5
PhoneyDeveloper
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I usually set a custom left or back button in viewDidLoad of the view controller that's been pushed.
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