Groupted table view cells not loading.

Question

Hi,

I'm working on creating a grouped table view. The data is being loaded alright, but in the grouped view there are a lot of white empty spaces. They get populated after I scroll up and down a few times. Help?

Here's my getCellForRowIndexAtPath method:

static NSString *Id= @"CustomDiagChargeID";
CustomCellDiagCharges *cell = (CustomCellDiagCharges *)[tableView dequeueReusableCellWithIdentifier:Id];
if(cell == nil) {
    NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"CustomCellDiagCharges" owner:self options:nil];
    for (id oneObject in nib) {
        if([oneObject isKindOfClass:[CustomCellDiagCharges class]])
            cell = (CustomCellDiagCharges *) oneObject;
    }
}

NSUInteger row = [indexPath row];
DiagDetails *rowData = [preferences getDiagElementAt:indexPath.section row:row];
cell.code.text = rowData.ICD9Code;
cell.desc.text = rowData.ICD9Desc;  
return cell;

Thanks,
Teja.

Answer 1

For one thing, you shouldn't declare Id as static. The pointer will be invalid after the first event loop completes and the string is deallocated.

Update: This is incorrect. See below.

Answer 2

When your cell contents change due to scrolling, that's almost always caused by a problem with your cell identifiers. Inspect your CustomCellDiagCharges object in CustomCellDiagCharges.xib and make sure its Identifier field matches the cell identifier you're using in your code (CustomDiagChargeID).

Also, if you have other tables in your app, make sure you're not using the same cell identifier with another UITableViewCell subclass.

Answer 3

I was playing around with background and cell alphas and somehow all of the cells are loading now. Not really sure what the problem was. Oh well, software.