Re: Overriding target and action of backBarButtonItem
Re: Overriding target and action of backBarButtonItem
- Subject: Re: Overriding target and action of backBarButtonItem
- From: charisse napeÿfffff1as <email@hidden>
- Date: Fri, 14 Jan 2011 19:02:15 -0800 (PST)
Hello Matt,
Yeah. that's what I also thought. I just needed somebody who knows more to
actually confirm it.
Anyway, So how can I customize what happens when the user presses the back
button?
THanks,
Charisse
________________________________
From: Matt Neuburg <email@hidden>
To: charisse nape?fffff1as <email@hidden>
Cc: email@hidden
Sent: Friday, January 14, 2011 23:47:12
Subject: Re: Overriding target and action of backBarButtonItem
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/>
A fool + a tool + an autorelease pool = cool!
AppleScript: the Definitive Guide - Second Edition!
http://www.apeth.net/matt/default.html#applescriptthings
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