Question

This is probably caused by poor design, but when I scroll my table too fast, and then scroll back to the top, the view that is placed in the last table cell is also placed over the first table cell in the tableView.

I think it is probably caused by my use of if statements to put some static content in the first section and dynamic content in the second section.

Any help is appreciated.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

    // Configure the cell...

    if (indexPath.section == 0) {

        if (indexPath.row == 0) {

            cell.selectionStyle = UITableViewCellSelectionStyleNone;
            UITextField *textField = [[UITextField alloc]initWithFrame:CGRectMake(10, 13, 282, 20)];
            textField.clearsOnBeginEditing = NO;
            textField.placeholder = @"enter template name";
            textField.font = [UIFont systemFontOfSize:15.0];
            textField.clearButtonMode = UITextFieldViewModeWhileEditing;
            textField.delegate = self;
            textField.text = [selectedTemplate name];
            [textField addTarget:self action:@selector(nameDidChange:) forControlEvents:UIControlEventEditingChanged];
            [cell.contentView addSubview:textField];

        } else {

            cell.textLabel.text =  @"Add a new question";
            cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

        }

    } else {

        NSString *label = [[sortedQuestions valueForKey:@"questionText"] objectAtIndex:indexPath.row];
        CGSize stringSize = [label sizeWithFont:[UIFont boldSystemFontOfSize:15] constrainedToSize:CGSizeMake(230, 9999) lineBreakMode:NSLineBreakByWordWrapping];

        UITextView *textV=[[UITextView alloc] initWithFrame:CGRectMake(5, 5, 230, stringSize.height+10)];
        textV.font = [UIFont systemFontOfSize:15.0];
        textV.text=label;
        textV.textColor=[UIColor blackColor];
        textV.editable = NO;
        textV.userInteractionEnabled = NO;
        textV.backgroundColor = [UIColor colorWithRed:0.97f green:0.97f blue:0.97f alpha:1.00f];
        [cell.contentView addSubview:textV];

        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

    }

    return cell;
}

Answer 1

It looks like a cell that was layed out for, say, section 0 row 0 is being dequeued and used for, say, section 0 row 1, which does not replace all of the settings that were made for it when it was holding section 0 row 0 material.

You might want to consider using 3 separate cell identifiers, one for section 0 row 0, one for section 0 row 1, and one for all the rest. You’ll need a preliminary set of if statements (or switch-case statements) so that you use the right identifier when calling dequeueReusableCellWithIdentifier:.