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Yes, I get that, and that is the perfect solution for iOS5, but my app supports iOS4 and above, where weak isn't available.
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Yes, I get that, and that is the perfect solution for iOS5, but my app supports iOS4 and above, where weak isn't available.

<div>
I still use assign for the delegates and do not support ARC in my apps.
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I still use assign for the delegates and do not support ARC in my apps.

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<div class="content wysiwyg-content">
Hi experts,<br />
<br />
I'm using ARC for the first time and I have a problem with delegates.<br />
<br />
I have a ConnectionObject that inherits from NSObject, it has a NSURLConnection and downloads some data. I have a protocol ConnectionObjectDelegate with several delegate methods that need to be called when the connection finished downloading.<br />
&nbsp;It also has an NSMutableSet containing delegates that need to be called when the connection finishes. The objects I add to this set as delegates may become nil while the data is downloading, so they have to be removed/become nil in the set (or before trying to call the delegate method) as well.<br />
<br />
My object has a method for adding a delegate, in the past this would have been:<br />
-(void)addDelegate:(id&lt;Con<wbr />nectionObj<wbr />ectDelegat<wbr />e&gt;)delegat<wbr />e;<br />
<br />
But now I'm not sure, how do I make sure that the object I pass as a parameter is weak?<br />
<br />
Thanks in advance.<br />

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Hi experts,

I'm using ARC for the first time and I have a problem with delegates.

I have a ConnectionObject that inherits from NSObject, it has a NSURLConnection and downloads some data. I have a protocol ConnectionObjectDelegate with several delegate methods that need to be called when the connection finished downloading.
 It also has an NSMutableSet containing delegates that need to be called when the connection finishes. The objects I add to this set as delegates may become nil while the data is downloading, so they have to be removed/become nil in the set (or before trying to call the delegate method) as well.

My object has a method for adding a delegate, in the past this would have been:
-(void)addDelegate:(id<ConnectionObjectDelegate>)delegate;

But now I'm not sure, how do I make sure that the object I pass as a parameter is weak?

Thanks in advance.


__unsafe_unretained in ARC

iOS is a mobile operating system developed by Apple; it is a derivative of the Mac OS X desktop operating system, with which it shares many (but not all) common frameworks and other components. These include Cocoa Touch, the Mach/Darwin/XNU kernel and code from the Berkeley Software Distribution (BSD). Each iOS application runs in its own secure sandbox to prevent altering other applications, the operating system, or any other data.

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