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POCustom UITableViewCell, autorelease and other method
 

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  1. POCustom UITableViewCell, autorelease and other method
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    <p>(sorry for my english :-) I'm loading a custom UITableViewCell:</p> <pre><code>static NSString *CellIdentifier = @"ReminderCell"; ReminderCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { NSLog(@"Alloco nuova cella"); NSArray *objectsInNib = [[NSBundle mainBundle] loadNibNamed:@"ReminderCell" owner:nil options:nil]; for(id currentObject in objectsInNib) { if([currentObject isKindOfClass:[ReminderCell class]]) { cell = (ReminderCell *)currentObject; break; } } } //fine caricamento cella dal Nib return cell; </code></pre> <p>I'm setting the owner to nil because I have .m and .h for this cell, and want to have the outlet inside it's own files and not in the UITableViewController. It's working ok.</p> <p>My question is about correct memory management in this situation.</p> <p>I understand that loadNibNamed returns an autoreleased array. Moreover, I understand that the autorelease pool is drained at the end of the current loop. For this reason, there should be no need to retain my custom cell before returning it.</p> <p>But, I've heard many times that you shuold assume that an autoreleased object is guaranteed to live only until the end of the method where the autorelease was sent. Assuming this, I should retain the cell immediately and then autorelease it:</p> <pre><code>cell = [[(ReminderCell *)currentObject] retain]; //code... [cell autorelease]; return cell; </code></pre> <p>Is this correct or should I not worry about this? Thanks</p>
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    1. COSorry, obviously the autorelease should be inside the if, immediately after cell = [[(ReminderCell *)currentObject]retain]; otherwise I could wrongly over-release other cells (eg. the dequeued cells)
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