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2011-04-30T13:44:36.500
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2017-05-23T11:55:50.723
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here is the methodology I use for loading images into a UITableView from a remote location: in your .h file, declare a mutable dictionary for storing the images: <pre><code> NSMutableDictionary *images; </code></pre> initialize the dictionary in -init... or in -viewDidLoad <pre><code>images = [[NSMutableDictionary alloc]init]; </code></pre> in the .m, <code>tableView:cellForRowAtIndexPath:</code>, see if the image exists in your dictionary for the indexPath <pre><code>UIImage *img = [images objectForKey: indexPath]; </code></pre> if the image does exist, just set it. <pre><code>if (img) cell.imageView.image = img; </code></pre> if the image does NOT exist, set the cell's image to a temporary image... <pre><code>if (!img) cell.imageView.image = [UIImage imageNamed:@"imageUnavailable.png"]; </code></pre> AND add that image to your dictionary so it doesnt try to refetch the image if you scroll off and back to that image before it loads... <pre><code>[images setObject:[UIImage imageNamed:@"imageUnvailable.png"] forKey: indexPath]; </code></pre> then, in this same block, use an NSOperationQueue, and a custom NSOperation ( here is a reference - <a href="https://stackoverflow.com/questions/4845088/nsoperation-and-setimage">NSOperation and SetImage</a>) to get your image and call back into your UITableViewController with that image. in your callback, add your image to the dictionary (overwriting the temp image) and call [tableView reloadData] this will give you a nice non blocking user experience.
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1. POUIImage in uitableViewcell slowdowns scrolling table
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1. USCommunity
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1. USJason Cragun
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1. COUIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@", [(Tweet *)[recentTweets objectAtIndex:indexPath.row]urlString]]]]]; WHERE should I load images from this line?
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 USAbhishek

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