Re: Overriding target and action of backBarButtonItem
Re: Overriding target and action of backBarButtonItem
- Subject: Re: Overriding target and action of backBarButtonItem
- From: Matt Neuburg <email@hidden>
- Date: Fri, 14 Jan 2011 07:47:12 -0800
On Fri, 14 Jan 2011 01:17:58 -0800 (PST), charisse nape?fffff1as <email@hidden> said:
>Hello Guys,
>
>I have trouble setting the action for my backbarbutton item. No matter how I set
>it, my selector does not get called.
>Here is my code below:
>
>
> UIBarButtonItem *backB = [[UIBarButtonItem alloc] init];
>backB.title = @"Back";
>backB.action = @selector(disconnect:);
> self.navigationItem.backBarButtonItem = backB;
> [backB release];
>
>Assume I created a disconnect() function already.
>
>But if I use leftBarButtonItem my function gets called. Is this because the
>backBarButton item already has its function to dismiss the view? Can't I
>override it somehow?
No, you really can't. A backBarButton item should have a nil select and target, allowing it to perform its standard function, namely to go back. However, you can perform other trickery that allows you to customize what happens at that moment. You can change beforehand what the user will go back *to*, and you can hear through a notification when the user does go back. Any further advice would depend upon your explaining what you are really trying to accomplish. m.
--
matt neuburg, phd = email@hidden, <http://www.apeth.net/matt/>
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