Re: program termination after releasing self defined NSXMLParser class
Re: program termination after releasing self defined NSXMLParser class
- Subject: Re: program termination after releasing self defined NSXMLParser class
- From: Alexander Spohr <email@hidden>
- Date: Fri, 16 Apr 2010 18:34:46 +0200
Am 16.04.2010 um 00:43 schrieb Dominic Dauer:
> With the purpose to test these simple class I just did the following in the controller class of one view:
>
> -(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
>
> XMLParser *parser = [[XMLParser alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://localhost/test/out.xml";]];
> [parser setDelegate:parser];
> [parser parse];
>
> [parser release];
>
> return NO;
> }
>
> -----------------------------------------------------------------
>
> Everything works fine until call the release method to the parser. In the simulator the app is terminating without any message in the log.
> I guess I do a fundamental mistake.
>
> Any ideas?
Yes. The docs state:
-parse
Starts the event-driven parsing operation.
That means that -parse does not block. It runs in the event loop.
So the parser starts running and wants to talk to its delegate. But too bad - you released it right after it started to work.
You have to retain it as long as the parsing takes. That is what the delegate is for.
atze
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