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    <p>I write the code with the help of gcd , you just have to pass the object of imageView and pass the url , it manages all the things, like cache.</p> <pre><code>-(void)downloadingServerImageFromUrl:(UIImageView*)imgView AndUrl:(NSString*)strUrl{ strUrl = [strUrl encodeUrl]; NSString* theFileName = [NSString stringWithFormat:@"%@.png",[[strUrl lastPathComponent] stringByDeletingPathExtension]]; NSFileManager *fileManager =[NSFileManager defaultManager]; NSString *fileName = [NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"tmp/%@",theFileName]]; imgView.backgroundColor = [UIColor darkGrayColor]; UIActivityIndicatorView *actView = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite]; [imgView addSubview:actView]; [actView startAnimating]; CGSize boundsSize = imgView.bounds.size; CGRect frameToCenter = actView.frame; // center horizontally if (frameToCenter.size.width &lt; boundsSize.width) frameToCenter.origin.x = (boundsSize.width - frameToCenter.size.width) / 2; else frameToCenter.origin.x = 0; // center vertically if (frameToCenter.size.height &lt; boundsSize.height) frameToCenter.origin.y = (boundsSize.height - frameToCenter.size.height) / 2; else frameToCenter.origin.y = 0; actView.frame = frameToCenter; dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_async(queue, ^{ NSData *dataFromFile = nil; NSData *dataFromUrl = nil; dataFromFile = [fileManager contentsAtPath:fileName]; if(dataFromFile==nil){ dataFromUrl=[[[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:strUrl]] autorelease]; } dispatch_sync(dispatch_get_main_queue(), ^{ if(dataFromFile!=nil){ imgView.image = [UIImage imageWithData:dataFromFile]; }else if(dataFromUrl!=nil){ imgView.image = [UIImage imageWithData:dataFromUrl]; NSString *fileName = [NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"tmp/%@",theFileName]]; BOOL filecreationSuccess = [fileManager createFileAtPath:fileName contents:dataFromUrl attributes:nil]; if(filecreationSuccess == NO){ NSLog(@"Failed to create the html file"); } }else{ imgView.image = [UIImage imageNamed:@"NO_Image.png"]; } [actView removeFromSuperview]; [actView release]; [imgView setBackgroundColor:[UIColor clearColor]]; }); }); </code></pre> <p>}</p>
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    1. POHow to improve images loading issues. is there any cache like solution
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    1. USSachinVsSachin
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    1. VO
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    1. COstrUrl = [strUrl encodeUrl]; .. No visable @interface for NSString declare selector 'encodeURL'
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      1. USuser2492409
    2. COSorry, I was using category for convert string to encode, so it can remove spaces from the url string.
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      1. USSachinVsSachin
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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