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Editorial Team
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Asked: 2026-05-18T10:45:01+00:00

I am creating an application which uses a web service.And retrieves a list of

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I am creating an application which uses a web service.And retrieves a list of users and there details like images, user id and there names.I displayed all the information related to users in table view, Thus each of the cell in the table view has an image with the for tables in it. I am using a Custom cell class to create the individual cells. selecting any row in table presents a detail view (using navigation) which show a larger image and all the details related to the particular user i selected.

in customcell and detail view class i am using web view to display image.
But when i run the app the images gets a bit of delay to display and same happens with the detail view.

Is there any alternative so that i can improve the performance of the table view so that i can have smooth scrolling of table view with out any delay in image loading and detail view??
here is the code…

- (UITableViewCell *)tableView:(UITableView *)tableView 
            cellForRowAtIndexPath:(NSIndexPath *)indexPath 

{
    static NSString *CustomCellIdentifier = @"CustomCellIdentifier ";

CustomCell *cell = (CustomCell *)[tableView 
                                  dequeueReusableCellWithIdentifier: CustomCellIdentifier];
if (cell == nil)  
{

    NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"CustomCell" owner:self options:nil ];
    //cell = [[CustomCell alloc] initwi ];
    for (id oneObject in nib)
        if ([oneObject isKindOfClass:[CustomCell class]])
           cell = (CustomCell *)oneObject;

}
NSUInteger row = [indexPath row];
NSString *imageName = [imgArray objectAtIndex:row];
NSString *completeImageUrl = [[NSString alloc] initWithFormat:@"http://122.160.153.166:201/%@", imageName];

NSURL *url = [NSURL URLWithString:completeImageUrl];
//NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
NSData *imageData = [[NSData alloc] initWithContentsOfURL:url];
UIImage *image = [UIImage imageWithData:imageData];     /// check to see if we are getting all the arrays such as image array and userId array and name array of same size..
if(image == nil)
{

}
cell.imgView.image = image;                             /// other wise an execption of out out array range will be shown

[image release];
[imageName release];

//[cell.webView initWithFrame:CGRectZero];
//[cell.webView loadRequest:requestObj];
//cell.webView.frame = CGRectMake(20, 0, 80.0, 64);
cell.userIdLabel.text = (NSString *)[userId objectAtIndex:row];
cell.nameLabel.text = (NSString *)[userName objectAtIndex:row];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;

}`

i think problem can be in imgArray array as i am setting it from other class. Where i request the web service and fetched all the data about users .

Any help is greatly appreciated . Thanks in advance

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1 Answer

  1. Editorial Team

    okay finally i removed the uiweb view from my app and used Imaged view and succeed.
    i used the link that was given by the developer of the tweetie . here it is link text

    i used the ABTableViewCell class and created the whole cell using the code.
    The scrolling was very jerky when i executed the app. after applying almost 4 hours and with the help of lazy loading i was able to run my app smoothly. I stored the data which is retrieved from url into an array then applied the concept in tableView:cellForRowAtIndexPath:
    method..

    Thanks you guys for helping me …

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