Question

Most of the views in my app are UITableVlews inside a UIViewController. My App feels like it’s lagging when trying to scroll through the tables. I was wondering (1.) if it is better to create the cell objects in the table view, or create them at runtime and add them to the cells subview?

examples:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
            case 3: 
            {
                NSNumber *tetherState = [[mobIntDict objectForKey:@"State"] intValue];
                NSNumber *currValState = [[NSNumber numberWithInt:1023] intValue];
                tetherSw = [[UISwitch alloc] initWithFrame:CGRectMake(197, 8, 94, 27)];
                tetherSw.tag = kDefaultSwTag;
                if(tetherState == currValState){
                    tetherSw.on = YES;
                }else{
                    tetherSw.on = NO;
                }
                [tetherSw addTarget:self action:@selector(tetherSwAction:) forControlEvents:UIControlEventValueChanged];
                [cell.contentView addSubview:tetherSw];
                cell.textLabel.text = @"Tether";
                [tetherSw release];
            }
                break;
}

–OR–

-(void)viewDidLoad{

    tetherSw = [[[UISwitch alloc] initWithFrame:CGRectMake(197, 8, 94, 27)] autorelease];
    tetherSw.tag = kDefaultSwTag;
    [tetherSw addTarget:self action:@selector(tetherSwAction:) forControlEvents:UIControlEventValueChanged];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
            case 3: 
            {
                 [cell addSubView:tetherSw];
            }
}

Answer 1

Actually, my tables are setup just fine. A solid restore did the trick, and my app runs without the afore-mentioned “LAG”