Cells become empty after scrolling. (Xcode)

Question

I have a problem with my tableview. When I scroll and a cell disappears from the screen it becomes blank. I have built a prototype cell in the storyboard with two labels and one imageview, it have the same identifier that I use in my code. I also have built a custom class for the customcell. Here is the code in cellForRowAtIndexPath:

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

static NSString *CellIdentifier = @"Cell";
Scientist *currentScientist = [[xmlParser data] objectAtIndex:indexPath.row];

CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
    cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];

}

cell.self.cellName.text = currentScientist.self.name;
cell.self.cellSubject.text = currentScientist.self.subject;
cell.self.cellImage.image = currentScientist.self.image;

return cell;
}

I don't know if you need more code to help me.

Answer 1

In my case, creating a different cell identifier for each one worked just fine. I have something like:

NSString *cellIdentifier = [NSString stringWithFormat:@"identifier%i%i", indexPath.section, indexPath.row];

The rest should remain the same.

Answer 2

I found an article that details the problem you are encountering. I would also recommend printing out the Scientist data to ensure an object is being fetched correctly with the objectAtIndex:indexPath.row call.

From the article I linked below, I would be willing to bet that your dequeueReusableCellWithIdentifier is the problem. One quick way you could solve this is by giving each cell its' own unique cell identifier (Just to test out the theory). However, it looks the appropriate way to solve this is by changing up your cellForRowAtIndex method.

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