Using NSThread to solve waiting for image from URL on the iPhone

Posted by james.ingham on Stack Overflow See other posts from Stack Overflow or by james.ingham
Published on 2010-05-10T13:43:44Z Indexed on 2010/05/10 13:54 UTC
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So I have the following code in a method which I want to set a UIImageView image to that of one from an online source:

[NSThread detachNewThreadSelector:@selector(loadImage) toTarget:self withObject:nil];

Then in the method called by the thread I have this:

- (void) loadImage
{
    NSURL *url = [NSURL URLWithString:logoPath]; // logoPath is an NSString with path details
    NSData *data = [NSData dataWithContentsOfURL:url];

    logoImage.image = [UIImage imageWithData:data];
}

This works great however I get many warnings within the Debugger Console along the lines of:

2010-05-10 14:30:14.052 ProjectTitle[2930:633f] * _NSAutoreleaseNoPool(): Object 0x169d30 of class NSHTTPURLResponse autoreleased with no pool in place - just leaking

This occurs many times each time I call the new thread and then eventually, under no pattern, after calling a few of these threads I get the classic 'EXC_BAD_ACCESS' run-time error.

I understand that this is happening because I'm not retaining the object but how can I solve this with the code in 'loadImage' shown above?

Thanks

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