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POCallback from delegate to sender results in EXC_BAD_ACCESS error
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  1. POCallback from delegate to sender results in EXC_BAD_ACCESS error
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    copied!<p>I'm developing an application that uses NSURLConnection a lot. I want content to be loaded dynamically, so I have to implement a lot of delegates for this to work. In order to reduce the number of delegates, I created a class (AbstractURLConnection) that is &lt; NSURLConnectionDelegate>. <br /> <br /> I'm currently using a login view (and it's controller) to test the behavior of the NSURLConnectionDelegate class. Here are is my AbstractURLConnection class: <a href="http://pastebin.com/mpBEiHky" rel="nofollow">AbstractURLConnection</a></p> <p>In LoginViewController I then do the following:</p> <pre><code>@interface LoginViewController : UIViewController { AbstractNSUrlConnection *au; } @property (strong, nonatomic) AbstractNSUrlConnection &lt;NSURLConnectionDelegate&gt; *au; - (void) handleResponse:(NSMutableData *) data; </code></pre> <p>and in the .m file:</p> <pre><code>- (IBAction)login:(id)sender { NSURLRequest *req = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:@"http://myapp.dev:8887/users/login"]]; au = [[AbstractNSUrlConnection alloc] initWithRequest:req sender:self withSelector:@"handleResponse:" andRequestMethod:[AbstractNSUrlConnection MethodTypePOST]]; } - (void) handleResponse:(NSMutableData *) data{ NSLog(@"called back"); } </code></pre> <p>When I run the application, my LoginView pops up and when I press the login button, the <strong>login</strong> function gets called. The connection is established and the callback method (handleResponse) is called too.</p> <p>When I press the login button a second time, however, I get a EXC_BAD_ACCESS error to the <strong>handleResponse</strong> method.</p> <p>I suppose that the sender is cleaned up when I press the button a second time, but I don't know how to solve this. Any idea what might cause this?</p> <p>Thanks in advance,</p> <p>Jordy</p>
 

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