#reuseidentifier

[iosengineering]

Reusing UITableViewCells

In tableView:cellForRowAtIndexPath:

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"];

//only create a cell if a suitable one doesn't already exist if (!cell) {     cell = [[UITableViewCell alloc]             initWithStyle:UITableViewCellStyleDefault            reuseIdentifier:@"UITableViewCell"]; }

This is faster, as it avoids creating a separate UITableViewCell for every object, even for ones which are not being shown.